ML20069E469

Rev 11 to Annunciator Response AR-603, Tgf 0 Annunciator Response

ML20069E469
Person / Time
Site:	Crystal River
Issue date:	05/28/1994
From:	FLORIDA POWER CORP.
To:
References
AR-603, NUDOCS 9406070207
Download: ML20069E469 (113)

Text

_

DOCUMENT TRANSMITTAL 15514 gFOrtDOCUMENTNOTIFICATIONAND/ORTRANSMITTAL A

.To: NRC (DC DESK)

MAC: N/A DESTINATION:

- DESCRIPTION:

DATE:

Sat May 28 10:37:32 1994 CPY COPY TOTALS

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DOCUMENT REV COMMENTS INFO CNTL MSTR AR0603 11 24 1

0 0

ISTRUCTIONS TO THE ADDRESSEE:

W YOU ARE A HOLDER OF A HARD COPY,PLEASE VERIFY THE DOCUMENT [8] RECEIVFD AGREES WITH THE ABOVE DESCRIPil0N.

BE SURE TO DESTROY DOCUMENT (8) OR PORTIONS OF DOCUMENT ($1 SUPERSEDED BY THE ABOVE.

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RETURN SIGNED AND DATED TRAN8MITTAL TO DOCUMENT CONTROL WITHIN 20 DAY 8 AT MAIL CODE:

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NR2B

~ SAIG NA1C

] florida Power Corporaties Dessnest Castrel Crystal River Eser8y Compten i

15780 W. Power Lies St.

Crystal River, FL 34428 8708 I

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INDEPENDENT VERIFICATION ICentral Reen Desumsete Daly)

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L ANNUNCIATOR RESPONSE AR-603 FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 TGF 0 ANNUNCIATOR RESPONSE THIS PROCEDURE ADDRESSES SAFETY RELATED COMPONENTS i

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APPROVED BY:

Interpretation Contact n

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(SIGtt U E ON FILE) 5i?fN DATE:

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INTERPRETATION CONTACT:

Supervisor, Nuclear Operations Administrative Shift

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TABLE OF CONTENTS l

l SECTION PAGE 1.0 PURPOSE............................

I j

2.0 REFERENCES

I 2.1

.INPLENENTING REFERENCES...............

1 2.2 DEVELOPNENTAL REFERENCES 1

3.0 PERSONNEL INDOCTRINATION I

{

l 4.0 INSTRUCTIONS 2

5.0 FOLLOW-UP ACTIONS.......................

2 ENCLOSURE 1

Annunciator Response......................

3 l

I l

1 1

i 1

AR-603 Rev. 11 Page i l

t

r 1.0 PURPOSE 1.1 Establish a reference document for each Annunciator Window on the TGF-AX3 Lampbox.

1.2 Establish operator actions for valid Annunciator alarms on the TGF-AX3 Lampbox.

1.3 Establish a reference to other procedures which address operator actions for valid Annunciator alarms on the TGF-AX3 Lampbox.

2.0 REFERENCES

2.1 IMPLEMENTING REFERENCES 2.1.1 AP-660, Turbine Trip 2.1.2 OP-607, Condenser Vacuum System 2.1.3 E0P, Emergency Operating Procedure 2.1.4 OP-701, Operation of the Main Electrical Generator Systems 2.1.5 AR-921, Hydrogen Panel Annunciator Response 2.1.6 OP-203, Plant Startup 2.1.7 OP-204, Power Operations 2.1.8 SP-325, Turbine Generator Checks 2.2 DEVELOPMENTAL REFERENCES 2.2.1 INP0 90-021, Good Practice OP-217, Alarm Response Procedures 2.2.2 Annunciator Window Engraving Drawing E-224-049 2.2.3 Westinghouse Vendor Drawing CN6F9177 3.0 PERSONNEL INDOCTRINATION 3.1 The Annunciator System is powered from VBDP-5 Breaker 28.

O AR-603 Rev. 11 Page 1 1

i

l 4

1 F

4.0 INSTRUCTIONS w

4.1 Respond to alarms on the TGF-AX3 Lampbox as indicated on Enclosure 1, Annunciator Response.

I 5.0 FOLLOW-UP ACTIONS l

None O

O

~

l AR-603 Rev. 11 Page 2

y ENCLOSURE 1-(Page 1 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-01 ^

0-01-01 TURB GEN BRG OIL PUMP TRIP EVENT POINT 1614 INDICATED CONDITION:

o TBP-2 BREAKER OPEN WITH CONTROL HANDLE IN THE NORMAL AFTER START POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE TBP-3 STARTS.

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-03 SENSING ELEMENT: CS/SC, CS/0,(CONTROL STATION CONTACTS) 428 BREAKER CONTACT AP,-603 Rev. 11 Page 3

l*

b ENCLOSURE 1 (Page 2 of 108) i v

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-01 0-01-01 TURB GEN BRG OIL PUMP TRIP EVENT POINT 1618 INDICATED CONDITION:

o TBP-3 DC STARTER OPEN WITH CONTROL HANDLE IN NORMAL AFTER START POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE TBP-2 AUTO STARTS o ENSURE TBP-8 AUTO STARTS DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-12 SENSING ELEMENT: CS/SC, CS/0 CONTROL STATION CONTACTS, 42X STARTER CONTACT AR-603 Rev. 11 Page 4

i h

ENCLOSURE 1 AV (Page 3 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-04 0-01-04 I

TURB GEN g

BRG OIL PUMP AUTO START EVENT POINT 1613 INDICATED CONDITION:

o TBP-2 BREAKER CLOSED WITH CONTROL HANDLE IN NORMAL AFTER STOP POSITION.

REDi'iQANT INDICATION WHICH WILL VERIFY ALARM:

o RED LIGHT IS ON WITH A GREEN FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF OIL PUMP AUTO START.

o CHECK MAIN LUBE OIL PRESSURE.

DISCUSSION:

LUBE OIL PRESSURE <12 PSIG AS SENSED BY TB-254-PS AUTO STARTS TPB-2

REFERENCES:

DRAWING 208-057 TB-03 SENSING ELEMENT: CS/ST, CS/0 CONTROL STATION CONTACTS, 42A BREAKER CONTACT AR-603 Rev. 11 Page 5

m.._.m 5

ENCLOSURE 1 (Page 4 of 108)

' (

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-04 '

0-01-04

~

TURB. GEN BRG OIL PUMP AUTO START EVENT POINT 1617 INDICATED CONDITION:

o TBP-3 ' STARTER CLOSED WITH CONTROL HANDLE IN NORMAL AFTER STOP POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o RED LIGHT IS ON WITH A GREEN FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF OIL PUMP AUTO START.

o CHECK MAIN LUBE OIL PRESSURE.

DISCUSSION:

LUBE OIL PRESSURE <10 PSIG AS SENSED BY TB-253-PS AUTO STARTS TPB-3

REFERENCES:

DRAWING 208-057 TB-12 SENSING ELEMENT: CS/ST, CS/0 CONTROL STATION CONTACTS, 42X STARTER CONTACT AR-603 Rev. 11 Page 6

ENCLOSURE 1 n()

(Page 5 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-05 0-01-05

~

HP SEAL OIL BACKUP PUMP TRIP EVENT POINT 1616 INDICATED CONDITION:

o TBP-8 BREAKER OPEN WITH CONTROL HANDLE IN NORMAL AFTER START POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE EITHER TBP-2 OR TBP-3, AND TBP-4 ARE RUNNING.

O ENSURE TBP-5 OR TBP-10 IS RUNNING.

o INVESTIGATE CAUSE OF TBP-8 TRIP.

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-04 SENSING ELEMENT: CS/ST, CS/0 CONTROL STATION CONTACTS, 428 BREAKER CONTACT AR-603 Rev. 11 Page 7 L

_j

l.

ENCLOSURE 1 O

(Page 6 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-06 0-01-06 HP SEAL OIL BACKUP PUMP AUTO START EVENT POINT 1615 INDICATED CONDITION:

o TBP-8 BREAKER CLOSED WITH CONTROL HANDLE IN NORMAL AFTER STOP POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o RED LIGHT IS ON WITH A GREEN FLAG ON CONTROL STATION.

i OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF TBP-8 AUTO START.

o CHECK OPERATION OF RUNNING TURBINE GENERATOR OIL AND SEAL OIL PUMP (S).

o CHECK MAIN LUBE OIL PRESSURE.

DISCUSSION:

SEAL OIL PRESSURE <10 PSIG AS SENSED BY TB-254-PS AUTO STARTS HIGH PRESSURE SEAL OIL BACK-UP PUMP

REFERENCES:

DRAWING 208-057 TB-04

()

SENSING ELEMENT: CS/ST, CS/0 CONTROL STATION CONTACTS, 42A BREAKER CONTACT l

AR-603 Rev. 11 Page 8

ENCLOSURE 1 (Page 7 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN LUBE OIL SYS TROUBLE EVENT POINT 0310 INDICATED CONDITION:

o MAIN TURBINE LUBE OIL PURIFIER OVERFLOW CHAMBER LEVEL HIGH AS SENSED BY LO-41-LS2.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF HIGH OIL LEVEL.

DISCUSSION:

LUBE OIL IS PROCESSED THROUGH SEVERAL PARALLEL FILTER BAGS. OIL IS FED TO THESE FILTER BAGS THROUGH N0ZZLES WHICH CAN PIVOT FOR MAINTENANCE. THESE PIV0T JOINTS ARE SEALED WITH 0-RINGS THAT SOMETIMES LEAKBY. LEAKAGE AT THIS JOINT WILL FILL THE OVERFLOW CHAMBER.

THE LUBE OIL PURIFIER INLET VALVE (LOV-66) CLOSES WHEN THIS EVENT POINT IS RECEIVED.

REFERENCES:

DRAWING 208-038 LO-06 SENSING ELEMENT: LO-41-LS2 AR-603 Rev. 11 Page 9

l.

IELoJEL1 O

(Page 8 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07

• 0-01-07 TURB GEN

~

LUBE OIL SYS TROUBLE EVENT POINT 0311 INDICATED CONDITION:

t o LOP-1 TRIPPED.

i REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O 0PERATOR ACTIONS FOR A VALID ALARM:

0 NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF PUMP TRIP.

DISCUSSION:

LOP-1 IS THE MAIN TURBINE LUBE OIL PURIFIER CIRCULATING PUMP.

MAIN PURIFIER OIL LEVEL IS SENSED BY LO-25-LS. ON A DECREASING LEVEL THIS SWITCH WILL OPEN DROPPING OUT 3LO-25-LS RELAY. THIS TRIPS LOP-1 AND WITH THE CONTROL HANDLE IN NORMAL AFTER START, WILL ALARM. THIS IS A COMMON CONDITION AFTER LOV-66 HAS CLOSED. LOP-2A AND LOP-2B ARE ALSO TRIPPED WITH A LOW PURIFIER OIL LEVEL.

REFERENCES:

DRAWING 208-038 LO-01 SENSING ELEMENT: CS/SC,CS/0 (CONTROL STATION CONTACTS) 42/8 BREAKER CONTACT I

AR-603 Rev. 11 Page 10

l ENCLOSURE 1 O

(Page 9 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN

~

LUBE OIL SYS TROUBLE EVENT POINT 0312 i

INDICATED CONDITION:

o LOP-2A TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF PUMP TRIP.

DISCUSSION:

LOP-2A IS THE "A" FEED PUMP LUBE OIL PURIFIER CIRCULATING PUMP.

EITHER "A" FW TURBINE CONSOLE (AS SENSED BY 3FW-207-LS) INCREASING OIL LEVEL OR LOW PURIFIER OIL LEVEL (AS SENSED BY 3LO-25-LS) WILL TRIP LOP-2A.

A HIGH CONSOLE OIL LEVEL MAY BE CAUSED BY A MISMATCH BETWEEN LOP-2A DISCHARGE FLOW AND THE RETURN DRAIN FLOW.

REFERENCES:

DRAWING 208-038 LO-02 SENSING ELEMENT: CS/SC,CS/0 (CONTROL STATION CONTACTS) 42/8 BREAKER CONTACT 1

AR-603 Rev. 11 Page 11

ENCLOSURE 1 O

(Page 10 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN LUBE OIL SYS

~

TROUBLE EVENT POINT 0313 INDICATED CONDITION:

o LOP-2B TRIPPED.

A REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF PUMP TRIP.

DISCUSSION:

LOP-2B IS THE "B" FEED PUMP LUBE OIL PURIFIER CIRCULATING PUMP.

EITHER "B" FW TURBINE CONSOLE (AS SENSED BY 3FW-208-LS) INCREASING OIL LEVEL OR LOW PURIFIER OIL LEVEL (AS SENSED BY 3LO-25-LS) WILL TRIP LOP-2B.

A HIGH CONSOLE OIL LEVEL MAY BE CAUSED BY A MISMATCH BETWEEN LOP-2B DISCHARGE FLOW AND THE RETURN DRAIN FLOW.

REFERENCES:

DRAWING 208-038 LO-03

()

SENSING ELEMENT: CS/SC,CS/0 (CONTROL STATION CONTACTS) 42/8 BREAKER CONTACT AR-603 Rev. 11 Page 12

ENCLOSURE 1 O

(Page 11 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN LUBE OIL SYS TROUBLE EVENT POINT 0315 INDICATED CONDITION:

o LOF-1 TRIPPED.

l f

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF FAN TRIP.

l DISCUSSION:

LOF-1 IS THE MAIN TURBINE LUBE OIL PURIFIER EXHAUSTER FAN.

THIS FAN NORMALLY RUNS CONTINUOUSLY AND HAS NO TRIPS OTHER THAN NORMAL BREAKER OVERCURRENT DEVICES. (INSTANTANEOUS AND THERMAL OVERLOAD)

REFERENCES:

DRAWING 208-038 LO-05 SENSING ELEMENT: 42/B BREAKER CONTACT AR-603 Rev. 11 Page 13 m

l.

l ENCLOSURE 1 (Page 12 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TUR8 GEN

_j LUBE OIL SYS e

TROUBLE

_ _f EVENT POINT 0316 INDICATED CONDITION:

0 MAIN TURBINE LUBE OIL PURIFIER LEVEL HIGH AS SENSED BY LO-24-LS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF HIGH LEVEL.

DI!CUSSION:

ThlS ALARM IS HIGH PulIFIER LEVEL ONLY. NO PUMP TRIPS ARE INVOLVED, NOR DOES LOV-66 TRIP CLCSED.

REFERENCES:

DRAWING 208-038 LO-06 SENSING ELEMENT: LO-24-LS AR-603 Rev. 11 Page 14

ENCL 0SURE 1 O

(Page 13 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN LUBE OIL SYS TROUBLE EVENT POINT 0317 INDICATED CONDITION:

o FEEDWATER TURBINE LUBE OIL PURIFIER OVERFLOW CHAMBER LEVEL HIGH AS SENSED BY LO-41-LSI.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF HIGH OIL LEVEL.

DISCUSSION:

LUBE OIL IS PROCESSED THROUGH SEVERAL PARALLEL FILTER BAGS. OIL IS FED TO THESE FILTER BAGS THROUGH N0ZZLES WHICH CAN PIVOT FOR MAINTENANCE. THESE PIVOT JOINTS ARE SEALED WITH 0-RINGS THAT SOMETIMES LEAKBY. LEAKAGE AT THIS JOINT WILL FILL THE OVERFLOW CHAMBER.

THE LUBE OIL PURIFIER INLET VALVE (LOV-66) CLOSES WHEN THIS EVENT POINT IS RECEIVED.

REFERENCES:

DRAWING 208-038 LO-06 SENSING ELEMENT: LO-41-LS1 AR-603 Rev. 11 Page 15

ENCLOSURE 1 O

(Page 14 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-07 0-01-07 TURB GEN LUBE OIL SYS

~

TROUBLE EVENT POINT 0318 INDICATED CONDITION:

o FEEDWATER TURBINE LUBE OIL PURIFIER OVERFLOW CHAMBER LEVEL LOW AS SENSED l

BY LO-25-LS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF LOW OIL LEVEL.

DISCUSSION:

LOP-1, LOP-2A, AND LOP-2B ARE TRIPPED BY THIS LEVEL SWITCH.

REFERENCES:

DRAWING 208-038 LO-01 l

SENSING ELEMENT: LO-25-LS AR-603 Rev. 11 Page 16

1

'f 6

ENCLOSURE 1 (Page 15 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-09 '

0-01-09 GLJuiD STEAM DRN TNK LEVEL LOW EVENT POINT 1701 INDICATED CONDITION:

o GLAND STEAM CONDENSER DRAIN TANK LEVEL <9" AS SENSED BY TD-3-LS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO ENSURE TDV-40 CLOSED.

DISCUSSION:

A MAR HAS BEEN INSTALLED WHICH ADDED AN ADDITIONAL SOLEN 0ID TO CLOSE TDV-40 WHEN THE LOW LEVEL ALARM IS RECEIVED. THE LEVEL SETPOINT IS MEASURED FROM PLANT DATUM WITH THE TURBINE BUILDING FLOOR AT THE 95' ELEVATION. IF TDV-40 IS STUCK OPEN, A P0TENTIAL LOSS OF VACUUM CAN OCCUR.

REFERENCES:

DRAWING 208-073 SENSING ELEMENT: TD-3-LS AR-603 Rev. 11 Page 17

l ENCLOSURE 1 O

(Page 16 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-10 0-01-10 GLAND STEAM

~

SYSTEM TROUBLE EVENT POINT 0252 INDICATED CONDITION:

o GLAND STEAM EXHAUST PRESSURE >10" H O AS SENSED BY GS-1-PS.

2 REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF HIGH PRESSURE.

0 ENSl?itt ONE GLAND EXHAUST FAN IN OPERATION.

0 ELURE THE FOLLOWING:

CONDENSATE FLOW TO GLAND STEAM EXHAUST CONDENSER FAN IS NOT FULL 0F WATER GLAND STEAM SUPPLY IS NOT EXCESSIVE DISCUSSION:

REFERENCES:

DRAWING 208-033 GS-01 SENSING ELEMENT: GS-1-PS AR-603 Rev. 11 Page 18

ENCLOSURE 1 O

(Page 17 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-10 0-01-10 I

I I

GLAND STEAM l

SYSTEM TROUBLE I

Ih-----

EVENT POINT 0253 INDICATED CONDITION:

o GSF-1A TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF FAN TRIP.

O PLACE ALTERNATE GLAND EXHAUST FAN IN OPERATION.

DISCUSSION:

REFERENCES:

DRAWING 208-033 GS-01 SENSING ELEMENT: CS/SC, CS/0 CONTROL STATION CONTACTS, 42/B BREAKER CONTACT AR-603 Rev. 11 Page 19 u

ENCLOSURE 1 O

(Page 18 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-10 0-01-10 l

l l

GLAND STEAM SYSTEM l

TROUBLE i

I I

b----

EVENT POINT 0254 INDICATED CONDITION:

o GSF-1B TRIPPED.

1 REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF FAN TRIP.

O PLACE ALTERNATE GLAND EXHAUST FAN IN OPERATION.

DISCUSSION:

REFERENCES:

DRAWING 208-033 GS-02 SENSING ELEMENT: CS/SC, CS/0 CONTROL STATION CONTACTS, 42/B BREAKER CONTACT AR-603 Rev. 11 Page 20

i ENCLOSURE 1

('

(Page 19 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-01-10 0-01-10 I

I l

l l

l GLAND STEAM SYSTEM l

l TROUBLE l

l I

I l

l b

EVENT POINT 0255 INDICATED CONDITION:

o GLAND STEAM PRESSURE IS ONE OF THE FOLLOWING:

HP TURBINE SUPPLY

>6.1 PSIG AS SENSED BY GS-6-PS.

OR l

ANY LP TURBINE <.5 PSIG AS SENSED BY GS-28, 29, 32, OR 34-PS REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

l o COMPUTER POINTS T001 THROUGH T005 MONITOR GLAND STEAM PRESSURES FOR THE LOW PRESSURE AND HIGH PRESSURE TURBINE GLANDS.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE GLAND STEAM PRESSURES.

DISCUSSION:

GS-28-PS MONITORS THE GENERATOR END OF LP TURBINE 3A.

GS-29-PS MONITORS THE GOVERNOR END OF LP TURBINE 3A.

GS-32-PS MONITORS THE GENERATOR END OF LP TURBINE 3B.

GS-34-PS MONITORS THE GOVERNOR END OF LP TURBINE 38.

REFERENCES:

DRAWING 208-033 GS-07 SENSING ELEMENT: GS-6-PS, GS-28-PS, GS-29-PS, GS-32-PS, GS-34-PS AR-603 Rev. 11 Page 21

ENCLOSURE 1 O

(Page 20 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02-01 0-02-01

_-_-_q TURB GEN LIFT OIL PUMP TRIP EVENT POINT 1621 INDICATED CONDITION:

o TBP-6 BREAKER OPEN WITH CONTROL HANDLE IN NORMAL AFTER START.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O O GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL' STATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o IF TURBINE RPM IS <600 RESTART TBP-6.

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE LUBE OIL SYSTEM.

DISCUSSION:

BEARING OIL PRESSURE <3 PSIG AS SENSED BY TB-256-PS ALSO TRIPS TBP-6 4

REFERENCES:

DRAWING 208-057 TB-05 SENSING ELEMENT: CS/SC, CS/0,(CONTROL STATION CONTACTS) 42B BREAKER CONTACT AR-603 Rev. 11 Page 22

ENCLOSURE 1 n

. (,)

(Page 21 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02-02 0-02-02 TURB GEN LIFT OIL PRESS LOW EVENT PGINT 1620 INDICATED CONDITION:

0 TURBINE GENERATOR BEARING LIFT OIL PRESSURE <850 PSIG AS SENSED BY TB-331-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE TBM-1 IS SHUTDOWN.

o 00 NOT ROLL TURBINE UNTIL ALARM CONDITION IS CLEAR.

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE LUBE OIL SYSTEM.

DISCUSSION:

THIS CONDITION SHOULD BE CORRECTED EXPEDITIOUSLY S0 AS NOT TO CAUSE THE TURBINE TO BE IDLE FOR AN EXTENDED PERIOD WITH GLAND STEAM APPLIED TO THE SHAFT WHERE A SHAFT B0W COULD DEVELOP.

REFERENCES:

DRAWING 208-057 TB-05

(

SENSING ELEMENT: TB-331-PS AR-603 Rev. 11 Page 23

ENCLOSURE 1 (Page 22 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3,02-03 '

0-02-03 TURB GEN OIL PRESS

^

PRETRIP i

EVENT POINT 1631 INDICATED CONDITION:

o TURBINE GENERATOR BEARING OIL PRESSURE <6 PSIG AS SENSED BY TB-267-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIP OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO AP-660.

o CHECK MAIN LUBE Oil PRESSURE.

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE LUBE OIL SYSTEM.

1 DISCUSSION:

TURBINE TRIP ON LOW MAIN TURBINE BEARING OIL PRESSURE IS >5 PSIG AND <7 i

PSIG

REFERENCES:

ORAWING 208-057 TB-15 SENSING ELEMENT: TB-267-PS AR-603 Rev. 11 Page 24 b

I.

ENCLOSURE 1 O

(Page 23 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02-04 0-02-04 TURB GEN EMERG BRG PP OVERLOAD EVENT POINT 1619 i

INDICATED CONDITION:

o TBP-3 MOTOR OVERLOAD.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o WHITE INDICMING LIGHT IS OUT (LUBE OIL PRESSURE <25 PSIG)

OPERATOR ACTIONS FOR A VALID ALARM:

o IF TURBINE ROLLING THEN START TBP-2.

o CHECK MAIN LUBE OIL PRESSURE.

j o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE THERMAL OVERLOAD ON I

BREAKER DISCUSSION:

THIS ALARM TELLS YOU THE THERMAL OVERLOAD HAS TRIPPED. YOU MAY STILL HAVE THE RED INDICATING LIGHT ON THE CONTROL STATION. IF THE PUMP IS NOT IN OPERATION THEN THE WHITE INDICATING LIGHT ON THE CONTROL STATION SHOULD BE OFF INDICATING PUMP DISCHARGE PRESSURE IS LOW (<25 PSIG).

REFERENCES:

DRAWING 208-057 TB-12 SENSING ELEMENT: 49(OL)

AR-603 Rev. 11 Page 25

ENCLOSURE 1 O

(Page 24 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02-05 0-02-05 TG LUBE OIL RESVR LEVEL HIGH/ LOW EVENT POINT 1636 INDICATED CONDITION:

o TURBINE LUBE OIL TANK LEVEL >6.9' AS SENSED BY TB-248-LS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE HIGH OIL LEVEL.

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-248-LS AR-603 Rev. 11 Page 26

ENCLOSURE 1 O

(Page 25 of 108)

TGF 0 ANNUNCIATOR RESP 0_NSF TGF-AX3-02 0-02-05 TG LUBE OIL

~

RESVR LEVEL HIGH/ LOW EVENT POINT 1637 INDICATED CONDITION:

o TURBINE LUBE OIL TANK LEVEL <5.9' AS SENSED BY TB-248-LS.

REDUNDANT INDICATION WHICH WILL ViRIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARH:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE LOW OIL LEVEL.

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-248-LS AR-603 Rev. 11 Page 27

4 ENCLOSURE 1 O

(Page 26 of 108)

TGF 0 ANNUNCIAT(R RESPONSE TGF-AX3-02-06 0-02-06 TURB GEN BRG OIL PUMP OUT OF SERVICE EVENT POINT 1678 INDICATED CONDITION:

o TBP-2 IN PULL TO LOCK POSITION, REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

DISCUSSION:

I THIS IS AN EXPECTED ALARM FOR BREAKER TAG.IING OPERATIONS.

REFERENCES:

DRAWING 208-057 TB-03 SENSING ELEMENT: CS/PTL CONTROL STATION CONTACT l

AR-603 Rev. 11 Page 28

~v n

m.

s-

ENCLOSURE 1 (Page 27 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02 0-02-06 l

TURB GEN BRG OIL PUMP

~

OUT OF SERVICE EVENT POINT 1679 INDICATED CONDITION:

o TBP-3 IN PULL TO LOCK POSITION.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

DISCUSSION:

THIS IS AN EXPECTED ALARM FOR BREAKER TAGGING OPERATIONS.

REFERENCES:

DRAWING 208-057 TB-12 SENSING ELEMENT: CS/PTL CONTROL STATION CONTACT AR-603 Rev. 11 Page 29

ENCLOSURE 1 (Page 28 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02 0-02-07 TG LUBE OIL VAPOR EXTRCT TROUBLE EVENT POINT 1622 INDICATED CONDITION:

o TURBINE GENERATOR LUBE OIL RESERVOIR PRESSURE <1.3" H O VACUUM AS SENSED 2

BY TB-285-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE TURBINE OIL RESERVOIR VAPOR EXTRACTOR FAN (LOF-4) FOR PROPER OPERATION.

DISCUSSION:

A MISADJUSTED FAN DAMPER AND/0R EXCESSIVE AIR INLEAKAGE COULD CAUSE THIS ALARM.

THE RESERVOIR VAPOR EXTRACTOR FAN KEEPS A SMALL NEGATIVE PRESSURE ON THE TURBINE GENERATOR LUBE OIL RESERV0IR. THE FAN HAS A DISCHARGE DAMPER USED TO ADJUST FLOW TO MAINTAIN THIS SMALL VACUUM.

REFERENCES:

DRAWING 208-057 TB-08 SENSING ELEMENT: TB-285-PS i

AR-603 Rev. 11 Page 30

)

ENCLOSURE 1 (Page 29 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-02-07 0-02-07 TG LUBE OIL VAPOR EXTRCT

~

TROUBLE EVENT POINT 1643 INDICATED CONDITION:

o TURBINE GENERATOR SEAL Oil LOOP SEAL OIL TANK PRESSURE <0.5" H O VACUUM 2

AS SENSED BY TB-304-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

l 0 COMPUTER POINT G001 AS SENSED BY TB-304-PS.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE GENERATOR BEARING OIL l

DRAIN TANK VAPOR EXTRACTOR FAN (TBP-9) FOR PROPER OPERATION.

DISCUSSION:

THE SEAL OIL VAPOR EXTRACTOR FAN KEEPS A SMALL NEGATIVE PRESSURE ON THE TURBINE GENERATOR SEAL OIL LOOP SEAL. THE FAN HAS A DISCHARGE DAMPER USED TO ADJUST FLOW TO MAINTAIN THIS SMALL VACUUM.

l

REFERENCES:

DRAWING 208-057 TB-08 SENSING ELEMENT: TB-285-PS AR-603 Rev. 11 Page 31

~.

l ENCLOSURE 1 (Page 30 of 108) i TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-01 0-03-01 MAIN TURB TRIP EVENT POINT 1624 INDICATED CONDITION:

o TURBINE AUT0 STOP OIL PRESSURE <45 PSIG AS SENSED BY TB-324-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC CONTROL PANEL.

i OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO AP-660 OR E0P.

DISCUSSION:

MAIN TURBINE TRIPS ARE AS FOLLOWS:

)

-LOW CONDENSER VACUUM >7" HgA AND <10" HgA

(>20" HgV AND <23"HgV)

-LOW BEARING OIL PRESSURE <7 PSIG AND >5 PSIG

-TURBINE OVERSPEED >1960 RPM

-EXCESSIVE AXIAL THRUST

-REACTOR TRIP

-MANUAL (LOCAL OR REMOTE)

-ELECTRICAL FAULTS (SEVERAL AND VARIOUS)

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: T8-324-PS AR-603 Rev. 11 Page 32

f.NCLOSURE 1 O

(Page 31 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-02 0-03-02 TURB l

VACUUM PRETRIP l

i EVENT POINT 1630 INDICATED CONDITION:

l 0 MAIN CONDENSER VACUUM > 5" HgA (< 25" HgV) AS SENSED BY TB-265-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o CONDENSER VACUUM INDICATION CD-7-PIR.

7 OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO OP-607.

O REFER TO OP-204 OR OP-203.

0 ENSURE BACKUP AIR REMOVAL PUMP IS OPERATING.

o UNIT LOADS < 30% (= 260 MWe) CONDENSER VACUUM MUST BE MAINTAINED < 3.5" HgA (> 26.5" HgV) A_ND UNIT LOADS >30% CONDENSER VACUUM MUST BE MAINTAINED < 5.5" HgA (> 24.5" HgV). IF VACUUM CANNOT BE MAINTAINED WITHIN THESE LIMITS, THEN IMMEDIATELY REDUCE REACTOR POWER BELOW THE ANTICIPATORY TRIP SETPOINT AND TRIP THE MAIN TURBINE WITHIN 5 MINUTES OF EXCEEDING CONDENSER VACUUM LIMITS.

DISCUSSION:

THIS ALARM IS A TRUE PRETRIP ALARM. THE SETP0 INT FOR A TURBINE TRIP IS FROM

>7" HgA TO

<10" HgA,

(>20" HgV TO

<23" HgV).

SUBSTANTIAL TURBINE DAMAGE WILL OCCUR IF OPERATION CONTINUES FOR MORE THAN 5 MINUTES WHILE VACUUM IS BELOW THE AB0VE STATED LIMITS.

REFERENCES:

DRAWING 208-057 TB-15 f

SENSING ELEMENT: TB-265-PS l

l AR-603 Rev. 11 Page 33 i

ENCLOSURE I O

(Page 32 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-03 0-03-03 TURB THRUST BRG PRETRIP EVENT POINT 1629 INDICATED CONDITION:

o THRUST BEARING OIL PRESSURE >35 PSIG AS SENSED BY TB-266-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE LOAD.

)

o REFER TO AP-660.

DISCUSSION:

THIS ALARM IS A TRUE PRETRIP ALARM. THE SETP0 INT FOR A TURBINE TRIP IS

>65 PSIG TO <80 PSIG.

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-266-PS l

AR-603 Rev. 11 Page 34

6 ENCLOSURE 1 l

(Page 33 of 108) j n

l TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-04 0-03-04 TURB THROTTLE PRESSURE

~

HIGH/ LOW EVENT POINT 0947 INDICATED CONDITION:

o TURBINE THROTTLE PRESSURE >939 PSIG AS SENSED BY SP-10-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o THROTTLE PRESSURE INDICATION SP-010A-PIR1.

OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE CORRECT MAIN STEAM HEADER PRESSURE SETPOINT IS SET ON IC-10-MS.

o INVESTIGATE CAUSE OF HIGH THROTTLE PRESSURE.

0 IF TURBINE IS NOT CONTROLLING, TAKE MANUAL CONTROL OF TURBINE.

DISCUSSION:

REFERENCES:

DRAWING 208-057 MS-14 SENSING ELEMENT: SP-10A-PY2-1,PYI-3, SP-108-PY2-1,PYl-1 (NNI CONTACTS) l AR-603 Rev. 11 Page 35

ENCLOSURE 1 (Page 34 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-04 0-03-04 TURB THROTTLE

~

PRESSURE HIGH/ LOW EVENT POINT 0948 INDICATED CONDITION:

o TURBINE THROTTLE PRESSURE <835 PSIG AS SENSED BY SP-10-PS.

I REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

)

o THROTTLE PRESSURE INDICATION SP-010A-PIRl.

i l

OPERATOR ACTIONS FOR A VALID ALARM:

0 ENSURE CORRECT MAIN STEAM HEADER PRESSURE SETPOINT IS SET ON IC-10-MS.

o INVESTIGATE CAUSE OF LOW THROTTLE PRESSURE.

O IF TURBINE IS NOT CONTROLLING, TAKE MANUAL CONTROL 0F TURBINE.

DISCUSSION:

REFERENCES:

ORAWING 208-057 MS-14 SENSING ELEMENT: SP-10A-PY2-1,PYI-3, SP-10B-PY2-1,PY1-1 (NNI CONTACTS)

AR-603 Rev. 11 Page 36 l

4 ENCLOSURE 1 O

(Page 35 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0713 INDICATED CONDITION:

o GENERATOR NEUTRAL GROUND LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION, REAR OF MCB, AND IS LABELED " GEN #3 NEUTRAL GROUND LOCK 0UTS."

1 OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4B FUSE #14. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

I

REFERENCES:

DRAWING 208-040 MT-71 SENSING ELEMENT: 27C/86GG AR-603 Rev. 11 Page 37

f 6,

ENCLOSURE l (Page 36 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0714 INDICATED CONDITION:

c' STEP-UP TRANSFORMER / GENERATOR DIFFERENTIAL LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON SSR SECTION, REAR OF MCB, AND IS LABELED " STEPUP XFRMR 3 GEN 3 A LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4A FUSE #8. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-72 SENSING ELEMENT: 27C/186T AR-603 Rev. 11 Page 38

l ENCLOSURE 1

/md (Page 37 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03 0-03-09 i

LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0715 INDICATED CONDITION:

o GENERATOR DIFFERENTIAL LOCK 0UT RELAYS LOSS OF DC POWER.

j REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON TGR SECTION, j

REAR OF MCB, AND IS LABELED " GEN #3 A LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4A FUSE #8. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-73 SENSING ELEMENT: 27C/86G AR-603 Rev. 11 Page 39

ENCLOSURE 1 (Page 38 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03 0-03-09 I

LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0716 INDICATED CONDITION:

o GENERATOR BACKUP AND NEGATIVE SEQUENCE LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

0 LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON TGR - REAR OF MCB, AND IS LABELED " GEN #3 BACKUP & NEG SEQUENCE LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4B FUSE #14. ALSO 2 SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-74 SENSING ELEMENT: 27C/868UB2 AR-603 Rev. 11 Page 40

i ENCLOSURE 1 (Page 39 of 108) l i

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09

-l LOCK 0UT RELAY

~

DC POWER LOSS EVENT POINT 0717 INDICATED CONDITION:

o GENERATOR FIELD FAILURE LOCK 0UT RELAY LOSS OF DC POWER.

Ob REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS 0FF, LOCATED ON THE TGR SECTION - REAR MCB, AND IS LABELED " GEN #3 FIELD FAILURE LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

I DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4A FUSE #8 TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-75 SENSING ELEMENT: 27C/86FF l

AR-603 Rev. 11 Page 41

I.

l ENCLOSURE 1 (Page 40 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09

~

LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0718 INDICATED CONDITION:

o 480V ES BUS 3A UNDERVOLTAGE LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB, AND IS LABELED "480V ES BUS A UV LK/0T 8627/ESA."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-SA FUSE #6. TWO SMALL FUSES ARE LOCATED INSIDE THE CONTROL BOARD FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-77 SENSING ELEMENT: 27C/ESA AR-603 Rev. 11 Page 42

ENCLOSURE 1 (Page 41 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09

~

LOCK 0UT REl.AY DC POWER LOSS EVENT POINT 0721 INDICATED CONDITION:

o EXCITER OVERCURRENT AND GENERATOR VOLTAGE / FREQUENCY LOCK 0UT RELAY LOSS OF DC POWER.

O' REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB, AND IS LABELED " GEN #3 VOLTS / HERTZ LOCK 0UTS.".

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4A FUSE #8. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-78 SENSING ELEMENT: 27C/86EXC AR-603 Rev. Il Page 43

ENCLOSURE 1 (Page 42 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 i

LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0723 INDICATED CONDITION:

o 480V ES BUS 3B UNDERVOLTAGE LOCK 0UT RELAY LOSS OF DC POWER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

0 LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB, AND IS LABELED "480V ES BUS B UV LK/0T 8627/ESB."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

t DISCUSSION:

t DC CONTROL POWER IS SUPPLIED FROM DPDP-5B FUSE #6. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-79 SENSING ELEMENT: 27C/ESB AR-603 Rev. 11 Page 44

ENCLOSURE 1 O

(Page 43 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 j

i LOCKOUT RELAY DC POWER LOSS EVENT POINT 0724 INDICATED CONDITION:

o STEP-UP TRANSFORMER SUDDEN PRESSURE LOCK 0UT RELAY LOSS OF DC POWER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB, AND IS LABELED " STEPUP XFMR 3 SUDDEN PRESS LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4B FUSE #14. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

l 1

REFERENCES:

DRAWING 208-040 MT-80 SENSING ELEMENT: 27C/86SPSU 4

AR-603 Rev. 11 Page 4S'

l 6,

ENCLOSURE 1 (Page 44 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0725 INDICATED CONDITION:

o UNIT AUX TRANSFORMER LOCKOUT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o FOR THE UNIT AUX TRANSFORMER ONE OR MORE OF THE FOLLOWING:

PHASE DIFFERENTIAL NEUTRAL GROUND SUDDEN PRESSURE LOCK 0UT RELAY AMBER INDICATING LIGHTS ARE OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB, AND ARE LABELED " UNIT AUX XFMR 3."

OPEPATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM THE FOLLOWING: NEUTRAL GND DPDP-4A FUSE ell / PHASE DIFFERENTIAL DPDP-4B FUSE #15 / SUDDEN PRESSURE DPDP-4A FUSE

1. 11.

TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR EACH CIRCUIT.

REFERENCES:

DRAWING 208-040, MT-81, 82, 83 SENSING ELEMENT: 27C/86TNUA/86TUA/86SPSUA AR-603 Rev. 11 Page 46

6 ENCLOSURE 1 (Page 45 of 108) l TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0726 INDICATED CONDITION:

o BACKUP TRANSFORMER LOCK 0UT RELAY LOSS OF DC POWER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o FOR THE BACKUP ES TRANSFORMER ONE OR MORE OF THE FOLLOWING:

PHASE DIFFERENTIAL NEUTRAL GROUND SUDDEN PRESSURE LOCK 0UT RELAY AMBER INDICATING LIGHTS ARE OFF, LOCATED ON THE SSAA-1 SECTION OF THE REAR MCB AND ARE LABELED " BACKUP ES XFMR LK/0T RLY."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DISPATCHER APPROVAL IS REQUIRED PRIOR TO RESETTING ANY LOCK 0UTS WHICH HAVE YELLOW CONTROL HANDLES.

DC CONTROL POWER IS SUPPLIED FROM:

FOR SUDDEN PRESSURE AND NEUTRAL GROUND THEY ARE DPDP-4A FUSE #11 / PHASE DIFFERENTIAL IS DPDP-4B FUSE #15 TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

ORAWING 208-040 MT-137, 138, 139

()

SENSING ELEMENT: 27C/86TNGDBEST, 86PBEST, 86TBEST AR-603 Rev. 11 Page 47

6 ENCLOSURE 1 (Page 46 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 '

0-03-09 LOCK 0UT RELA,Y DC POWER LOSS EVENT POINT 0729 INDICATED CONDITION:

o BACKUP TRANSFORMER LOCK 0UT RELAY LOSS OF DC POVER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o FOR THE BACKUP ES TRANSFORMER ONE OR MORE OF THE FOLLOWING:

PHASE DIFFERENTIAL NEUTRAL GROUND SUDDEN PRESSURE LOCK 0UT RELAY AMBER INDICATING LIGHTS ARE OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB AND ARE LABELED "STARTUP XFMR 3 LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DISPATCHER APPROVAL IS REQUIRED PRIOR TO RESETTING ANY LOCK 0UTS WHICH HAVE YELLOW CONTROL HANDLES.

DC CONTROL POWER IS SUPPLIED FROM:

FOR SUDDEN PRESSURE AND NEUTRAL GROUND THEY ARE DPDP-4A FUSE #11 / PHASE DIFFERENTIAL IS DPDP-4B FUSE #15 TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-84, 85, 86

()

SENSING ELEMENT: 27C/86SPSTU, 86TNSTU, 86TSTU i

AR-603 Rev. 11 Page 48 t

5 ENCL 0SURE 1 (Page 47 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY

~

DC POWER LOSS EVENT POINT 0730 INDICATED CONDITION:

o DACKUP ES TRANSFORMER MASTER TRIP LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o FOR THE BACKUP ES TRANSFORMER LOCK 0UT RELAY AMBER INDICATING LIGHTS ARE OFF, LOCATED ON THE SSR SECTION OF THE MCB AND IS LABELED " BACKUP ES XFMR MASTER LK/0T RLY 'A' AND

'B'."

OPERATOR ACTIONS FOR A VALID ALARM:

0 INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

i i

REFERENCES:

DRAWING 208-040 MT-141, 142 SENSING ELEMENT: 27C/86BESTMTA, 86BESTMTB AR-603 Rev. 11 Page-49

6 ENCLOSURE 1 (Page 48 of 108) j l

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 0850 INDICATED CONDITION:

o CUTOUT SWITCHES ARE OPEN, (LOSS OF DC POWER) FOR ONE OR MORE OF THE FOLLOWING:

UNIT TRIP PRIMARY OR ALTERNATE LOCK 0UT RELAY (86UTPX,PY; 86UTAX,AY)

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY INDICATING LIGHT IS OFF, LOCATED ON THE GENERATOR FEED AUX ASMBLY SECTION OF THE REAR MCB.

l j

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

~

1 DISCUSSION:

i DC CONTROL POWER IS SUPPLIED FROM DPDP-7A FUSE #7 FOR UNIT TRIP PRIMARY AND ALTERNATE TRIP RELAYS. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

OPENING THESE CUTOUT SWITCHES DISABLES THE SUBSTATION TRIPS FROM OPENING PLANT BREAKERS AUTOMATICALLY.

REFERENCES:

DRAWING 208-079 SB-03, SB-04, SB-16, SB-17 4

.s SENSING ELEMENT: LOA 6, LOAS, LOA 2, LOA 3 RELAYS AR-603 Rev. 11 Page 50

ENCLOSURE 1 O

(Page 49 of 108)

\\

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCKOUT RELAY

~

DC POWER LOSS EVENT POINT 1175 INDICATED CONDITION:

o REACTOR TRIPPED LOCK 0UT RELAY LOSS OF DC POWER.

O i

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB, AND IS LABELED " REACTOR TRIPPED LOCK 0UT 86/ REC."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

4 DC CONTROL POWER IS SUPPLIED FROM DPDP-48 FUSE #15. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-98 SENSING ELEMENT: 27C/REA AR-603 Rev. 11 Page 51

ENCLOSURE 1

~

(Page 50 of 108) 4 TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 1180 INDICATED CONDITION:

o GENERATOR UNDERFREQUENCY LOCK 0UT RELAY LOSS OF DC POWER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB, AND IS LABELED "UNDERFREQUENCY LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

i DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-4B FUSE #14. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-040 MT-102 SENSING ELEMENT: 27C/81G AR-603 Rev. 11 Page 52 l

1 i

ENCLOSURE 1

/T (s,/

(Page 51 of 108) l TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 l

l LOCKOUT RELAY DC POWER LOSS EVENT POINT 1639 i

I INGICATED CONDITION:

4 0 EH LOW FLUID LEVEL LOCK 0UT RELAY LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB, AND IS LABELED "LO EH FLUID LOCK 0UT 86/LFT."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER, 1

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-3A FUSE #20. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-057 TB-16

()

SENSING ELEMENT: 27C/86LFT AR-603 Rev. 11 Page 53

/q ENCLOSURE 1

()

(Page 52 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-03-09 0-03-09 LOCK 0UT RELAY DC POWER LOSS EVENT POINT 1674 INDICATED CONDITION:

o TURBINE TRIP LOCK 0UT RELAY LOSS OF DC POWER.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB, AND IS LABELED, "TURB 3 STOP VLVS LOCK 0UTS."

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF DC POWER.

DISCUSSION:

DC CONTROL POWER IS SUPPLIED FROM DPDP-40 FUSE #20. TWO SMALL FUSES ARE LOCATED INSIDE THE MCB FOR THIS CIRCUIT.

REFERENCES:

DRAWING 208-057 TB-22 SENSING ELEMENT: 27C/86TURB AR-603 Rev. 11 Page S4

ENCLOSURE 1 (Page 53 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-01 0-04-01 TURB EXH STM TEMP HIGH EVENT POINT 1632 i

INDICATED CONDITION:

o LP TURBINE #1 EXHAUST TEMPERATURE >175 F AS SENSED BY TB-279-TS.

i l

i REDUNDANT INDICATION WHICH WILL VERIFY ALARM:,

OPERATOR ACTIONS FOR A VALID ALARM:

o START HOOD SPRAYS.

DISCUSSION:

MAXIMUM AT BETWEEN CONDENSERS USING LP TURBINE EXHAUST TEMPERATURE IS 50' F.

REFERENCES:

DRAWING 208-057 TB-15 g

SENSING ELEMENT: TB-279-TS AR-603 Rev. 11 Page 55

1 ENCLOSURE 1 (Page 54 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-01 0-04-01 1

TURB EXH STM TEMP HIGH EVENT POINT 1633 i

INDICATED CONDITION:

o LP TURBINE #2 EXHAUST TEMPERATURE >175 F AS SENSED BY TB-280-TS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o START HOOD SPRAYS.

DISCUSSION:

MAXIMUM AT BETWEEN CONDENSERS USING LP TURBINE EXHAUST TEMPERATURE IS 50' F.

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-280-TS AR-603 Rev. 11 Page 56

i 6 3 ENCLOSURE 1 (Page 55 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-01 0-04-01 TURB EXH STM TEMP HIGH EVENT POINT 1634 INDICATED CONDITION:

o LP TURBINE #1 EXHAUST TEMPERATURE >250*F AS SENSED BY TB-279-TS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

(q/

OPERATOR ACTIONS FOR A VALID ALARM:

o INCREASE CONDENSER VACUUM, REFER TO OP-607 o INCREASE TURBINE LOAD.

O IF TURBINE LOAD CANNOT BE INCREASED THEN CONSIDERATION SHOULD BE GIVEN TO TAKE THE TURBINE OFF LINE.

DISCUSSION:

HIGH TURBINE EXHAUST TEMPERATURES WITH NORMAL CONDENSER VACUUM ARE CAUSED BY INSUFFICIENT ENERGY BEING REMOVED FROM THE STEAM BY THE LOW PRESSURE TURBINES. BY INCREASING TURBINE LOAD THESE TEMPERATURES WILL DECREASE.

MAXIMUM AT BETWEEN CONDENSERS USING LP TURBINE EXHAUST TEMPERATURE IS 50' F.

i

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-279-TS AR-603 Rev. II Page 57

O r

ENCLOSURE 1 (Page 56 of 108)

TGF 0 ANNUNCIATOR RESPONSE 1

i TGF-AX3-04-01 j

0-04-01

}

3 1

i 1

l

]

P

-]

TURB EXH STM j

TEMP

~

l HIGH

]

L c

j J

EVENT POINT 1635 r

INDICATED CONDITION:

o LP TURBINE #2 EXHAUST TEMPERATURE >250*F Y TB-280-TS.

\\

k\\O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

\\

OPERATOR ACTIONS FOR A VALID ALARM:

o INCREASE TURBINE LOAD.o INCREASE CONDENSER VACUUM, RE o IF TURBINE LOAD CANNOT BE INCREASED THEN C TO TAKE THE TURBINE OFF LINE.

ATION SHOULD BE GIVEN DISCUSSION:

BY INSUFFICIENT ENERGY BEING RE TURBINES. BY INCREASING TURBINE LOAD THESE SER VACUUM ARE CAUSED BY THE LOW PRESSURE MAXIMUM AT BETWEEN CONDENSERS USING LP TURB URES WILL DECREASE.

50' F.

HAUST TEMPERATURE IS

REFERENCES:

ORAWING 208-057 TB-15 SENSING ELEMENT: TB-280-TS i

AR-603 Rev. 11 Page 58

ENCLOSURE I 6

(Page 56 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-01 0-04-01

- -== = =

TURB EXH STM TEMP HIGH EVENT POINT 1635 INDICATED CONDITION:

o LP TURBINE #2 EXHAUST TEMPERATURE >250*F AS SENSED BY TB-280-TS.

REDUNDANT INDICATION WHICH WILL VERIFY ALAI 1M:

O f

OPERATOR ACTIONS FOR A VALID ALARM:

o INCREASE CONDENSER VACUUM, REFER TO OP-607 o INCREASE TURBINE LOAD.

o IF TURBINE LOAD CANNOT BE INCREASED THEN CONSIDERATION SHOULD BE GIVEN TO TAKE THE TURBINE OFF LINE.

f DISCUSSION:

HIGH TURBINE EXHAUST TEMPERATURES WITH NORMAL CONDENSER VACUUM ARE CAUSED BY INSUFFICIENT ENERGY BEING REMOVED FROM THE STEAM BY THE LOW PRESSURE TURBINES. BY INCREASING TURBINE LOAD THESE TEMPERATURES WILL DECREASE.

MAXIMUM AT BETWEEN CONDENSERS USING LP TURBINE EXHAUST TEMPERATURE IS 50' F.

REFERENCES:

DRAWING 208-057 TB-15 SENSING ELEMENT: TB-280-TS AR-603 Rev. II Page 58

.)

ENCLOSURE 1 O

(Page 57 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-02 0-04-02 TURBINE-STEAM FLOW LOW EVENT POINT 1638 INDICATED CONDITION:

o AP BETWEEN HIGH PRESSURE TURBINE INLET AND OUTLET <21 PSID AS SENSED BY MS-87-PS, WITH EITHER 1661 AND/0R 1662 OUTPUT BREAKERS CLOSED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GENERATOR MEGAWATT INDICATION LOW WITH AT LEAST ONE OUTPUT BREAKER CLOSED OPERATOR ACTIONS FOR A VALID ALARM:

o INCREASE TURBINE LOAD.

o IF TURBINE LOAD CANNOT BE INCREASED THEN CONSIDERATION SHOULD BE GIVEN TO TAKE THE TURBINE OFF LINE BY OPENING ANY CLOSED OUTPUT BREAKER (S).

DISCUSSION:

THIS EVENT POINT SIGNALS THE START OF A 60 SECOND TIME DELAY THAT IF THE CONDITION DOES NOT CLEAR IN THAT TIME THE TURBINE WILL BE TRIPPED.

WHEN THE FIRST OUTPUT BREAKER IS CLOSED A TIMER IS ACTIVATED WITH A 60 SEC^*!D TIME DELAY. IF TURBINE LOAD IS NOT INCREASED DURING THIS TIME THEN A TRIP SIGNAL IS SENT TO THE TURBINE.

REFERENCES:

DRAWING 208-057 TB-20

()

SENSING ELEMENT: MS-87-PS, 2MS-87-PS(TDE 60'SEC)

AR-603 Rev. 11 Page 59

ENCLOSURE 1

)

p (Page 58 of 108) j g

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-03 0-04-03 TURBINE LIMITED R

BY VALVE POS EVENT POINT 1660 INDICATED CONDITION:

o GOVERNOR VALVE POSITION IS EQUAL TO SELECTED VALVE POSITION LIMIT.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o INDICATED VALVE POSITION LIMIT ON EHC PANEL.

o INDICATED VALVE POSITION ON EHC PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

0 REDUCE TURBINE LOAD.

o IF UNIT NOT AT FULL POWER INCREASE VALVE POSITION LIMIT.

1 1

DISCUSSION:

IF TURBINE IS VALVE POSITION LIMITED WITH ICS IN FULL AUTO AND THE GENERATOR OUTPUT FALLS BELOW THE ULD SETTING, A SIGNIFICANT HEADER

]

PRESSURE ERROR WILL DEVELOP AND POSSIBLY RESULT IN ICS SHIFT TO TRACK AT 50 PSIG HEADER PRESSURE ERROR WITH THE TURBINE SHIFTING TO MANUAL.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: EHC CONTACT IN VALVE POSITION LIMITING CIRCUIT AR-603 Rev. 11 Page 60 i

6 ENCLOSURE 1 (Page 59 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-05 0-04-05

~

TURB GEN ROTOR VIB

~

HIGH EVENT POINT 1670 INDICATED CONDITION:

o TURBINE ROTOR VIBRATION >7 MILS ON ANY l 0F 9 TURBINE BEARINGS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O O BEARING VIBRATION INDICATORS FOR EACH TURBINE BEARING ON TGF PANEL.

O BEARING VIBRATION RECORDER FOR EACH TURBINE BEARING TB-194-SIRI ON TGR PANEL.

i 0PERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE LOAD.

o IF AT CRITICAL SPEED ACCELERATE TURBINE TO LEAVE CRITICAL SPEED AREA.

O IF VIBRATION EXCEEDS 14 MILS THEN CONSIDERATION SHOULD BE GIVEN TO TRIP THE TURBINE OR OTHER SUITABLE ACTION BASED ON PLANT CONDITIONS.

DISCUSSION:

VIBRATION INSTRUMENTS ARE USED TO MEASURE TURBINE ROTOR VIBRATION AB0VE 600 RPM. BELOW 600 RPM ROTOR ANOMALIES ARE MEASURED BY THE ECCENTRICITY INSTRUMENT.

i

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/VB CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 4)

AR-603 Rev. 11 Page 61

-\\

ENCLOSURE 1 O

(Page 60 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-06 0-04-06 TURB GEN ROTOR ECC HIGH EVENT POINT 1669 INDICATED CONDITION:

o TURBINE ROTOR ECCENTRICITY >3 MILS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o INDICATED ECCENTRICITY.FOR TURBINE ROTOR (TB-346-KI) ON TGF PANEL.

O TURBINE SUPERVISORY MONITORING RECORDER TB-194-SIR 1 ON TGR PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE LOAD.

o IF TURBINE IS OFF LINE WITH GLAND STEAM APPLIED, NOTIFY SECONDARY PLANT OPERATOR TO PLACE ON TURNING GEAR.

l DISCUSSION:

ROTOR ECCENTRICITY IS A MEASURE OF HOW MUCH THE TURBINE SHAFT IS B0WED. IT IS CAUSED BY UNEVEN HEATING OF THE TURBINE SHAFT AND USUALLY ONLY OCCURS DURING TURBINE STARTUP OR SHUTDOWN AND WHEN THE TURBINE IS NOT ROTATING.

THE B0 WING OF THE ROTOR IS RECORDED CONTINUOUSLY FROM TURNING GEAR SPEED TO APPR0XIMATELY 600 RPM. AB0VE 600 RPM THE VIBRATION INSTRUMENTS ARE USED TO INDICATE ROTOR ANOMALIES.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/RX CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 3)

AR-603 Rev. 11 Page 62

1

\\

6' ENCLOSURE 1 (Page 61 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-07 0-04-07 TURB EXPANSION TROUBLE EVENT POINT 1665 INDICATED CONDITION:

o TURBINE DIFFERENTIAL EXPANSION <l58 MILS, ROTOR #1 LONG.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o DIFFERENTIAL EXPANSION (TB-347-KI) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE HEATUP RATE.

DISCUSSION:

DIFFERENTIAL EXPANSION REFERS TO THE RELATIVE LENGTHS OF THE TURBINE ROTOR COMPARED TO THE TURBINE CASING. EITHER A LONG OR SHORT CONDITION CAN CAUSE TURBINE DAMAGE IF CONTACT OCCURS. THE CONDITION IS CAUSED BY UNEVEN HEATUP 0F TURBINE COMPONENTS AND CAN BE CORRECTED BY SLOWING THE HEATUP RATE.

REFERENCES:

DRAWING 208-057 TB-27 f3 V

SENSING ELEMENT: PD/DE CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 1 & 2)

AR-603 Rev. 11 Page 63

~

ENCLOSURE 1 (Page 62 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-07 0-04-07 TURB EXPANSION TROUBLE EVENT POINT 1666 INDICATED CONDITION:

o TURBINE DIFFERENTIAL EXPANSION >616 MILS, ROTOR #1 SHORT.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o DIFFERENTIAL EXPANSION (TB-347-KI) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE HEATUP RATE.

DISCUSSION:

DIFFERENTIAL EXPANSION REFERS TO THE RELATIVE LENGTHS OF THE TURBINE ROTOR COMPARED TO THE TURBINE CASING. EITHER A LONG OR SHORT CONDITION CAN CAUSE TURBINE DAMAGE IF CONTACT OCCURS. THE CONDITION IS CAUSED BY UNEVEN HEATUP OF TURBINE COMPONENTS AND CAN BE CORRECTED BY SLOWING THE HEATUP RATE.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/DE CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 1 & 2)

AR-603 Rev. 11 Page 64 v

.g--

r

ENCLOSURE 1 (Page 63 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-07 0-04-07 TURB EXPANSION TROUBLE EVENT POINT 1667 INDICATED CONDITION:

o TURBINE DIFFERENTIAL EXPANSION <345 MILS, ROTOR #2 LONG.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o DIFFERENTIAL EXPANSION (TB-348-KI) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VAllD ALARM:

o REDUCE TURBINE HEATUP RATE.

DISCUSSION:

DIFFERENTIAL EXPANSION REFERS TO THE RELATIVE LENGTHS OF THE TURBINE ROTOR COMPARED TO THE TURBINE CASING. EITHER A LONG OR SHORT CONDITION CAN CAUSE TURBINE DAMAGE IF CONTACT OCCURS. THE CONDITION IS CAUSED BY UNEVEN HEATUP 0F TURBINE COMPONENTS AND CAN BE CORRECTED BY SLOWING THE HEATUP RATE.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/DE CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 1 & 2)

AR-603 Rev. 11 Page 65

~

ENCLOSURE 1

()

(Page 64 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-07 0-04-07 TURB EXPANSION TROUBLE EVENT POINT 1668 INDICATED CONDITION:

o TURBINE DIFFERENTIAL EXPANSION >1454 MILS, ROTOR #2 SHORT.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o DIFFERENTIAL EXPANSION (TB-348-KI) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE HEATUP RATE.

DISCUSSION:

DIFFERENTIAL EXPANSION REFERS TO THE RELATIVE LENGTHS OF THE TURBINE ROTOR COMPARED TO THE TURBINE CASING. EITHER A LONG OR SHORT CONDITION CAN CAUSE TURBINE DAMAGE IF CONTACT OCCURS. THE CONDITION IS CAUSED BY UNEVEN HEATUP OF TURBINE COMPONENTS AND CAN BE CORRECTED BY SLOWING THE HEATUP RATE.

REFERENCES:

DRAWING 208-057 TB-27

()

SENSING ELEMENT: PD/DE CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET 1 & 2)

AR-603 Rev. 11 Page 66

_..~

ENCLOSURE I (Page 65 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-08 0-04-08 TURB ROTOR POSITION TROUBLE EVENT POINT 1663 INDICATED CONDITION:

o GOVERNOR END ROTOR POSITION <25 MILS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o ROTOR POSITION RECORDER (TB-119-ZIR) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE GENERATOR LOAD AND INVESTIGATE CAUSE OF THRUST BEARING NOT CONTROLLING ROTOR POSITION.

O IF TURBINE IS TRIPPED BY THE THRUST BEARING TRIP DEVICE THEN INSPECT THRUST BEARING COMPONENTS.

DISCUSSION:

)

THE ROTOR POSITION INSTRUMENT MEASURES THE RELATIVE POSITION OF THE ROTOR THRUST COLLAR TO THE THRUST BEARING SUPPORT. SMALL CHANGES IN ROTOR

)

POSITION CAN OCCUR WITH CHANGING ELECTRICAL LOAD. ANY WEAR ON THE THRUST l

SH0ES RESULTS IN A MOVEMENT OF THE ROTOR AND IS RECORDED ON TB-119-ZIR.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/RPCE CONTACT (SEE WESTINGHOUSE DWG 6528828 SHEET I & 2)

AR-603 Rev. 11 Page 67

ENCLOSURE 1 i

(Page 66 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-08 0-04-08 TURB 1

ROTOR POSITION

~

TROUBLE EVENT POINT 1664 INDICATED CONDITION:

o GOVERN 0R END ROTOR POSITION >95 MILS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o ROTOR POSITION RECORDER (TB-119-ZIR) INDICATION ON TGF PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE TURBINE GENERATOR LOAD AND INVESTIGATE CAUSE OF THRUST BEARING NOT CONTROLLING ROTOR POSITION.

o IF TURBINE IS TRIPPED BY THE THRUST BEARING TRIP DEVICE THEN INSPECT THRUST BEARING COMPONENTS.

DISCUSSION:

THE ROTOR POSITION INSTRUMENT MEASURES THE RELATIVE POSITION OF THE ROTOR THRUST COLLAR TO THE THRUST BEARING SUPPORT. SMALL CHANGES IN ROTOR POSITION CAN OCCUR WITH CHANGING ELECTRICAL LOAD. ANY WEAR ON THE THRUST SH0ES RESULTS IN A MOVEMENT OF THE ROTOR AND IS RECORDED ON TB-119-ZIR.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: PD/RPCE CONTACT (SEE WESTINGHOUSE DWG 652B828 SHEET 1 & 2)

AR-603 Rev. 11 Page 68

i ENCLOSURE 1 (Page 67 of 108) j TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-09 0-04-09 SPEED CHANNEL

~

'l TURB GEN TROUBLE EVENT POINT 1661 INDICATED CONDITION:

o SPEED CHANNEL FAILURE.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o SPEED CHANNEL MONITOR IS BACKLIGHTED ON THE EHC CONTROL PANEL.

l 0PERATOR ACTIONS FOR A VALID ALARM:

o STABILIZE THE PLANT IF THE TURBINE HAS SHIFTED OUT OF ICS CONTROL INTO MANUAL DISCUSSION:

THE EHC CONTROLLER WILL REVERT TO THE MANUAL MODE IF THERE IS A FAILURE OF ANY ONE OF THE FOLLOWING CHANNELS: MAIN SPEED, AUX SPEED, SPEED REFERENCE, LOAD REFERENCE.

HEADER PRESSURE CONTROL WITH THE TURBINE IN MANUAL IS VIA OPERATOR ACTION USING GV OR TV OPEN OR CLOSE P/B's IN ADDITION THE TBV'S WILL CONTROL HEADER PRESSURE IF HEADER PRESSURE ERROR IS 50 PSIG, REACTOR BAILEY IS ALSO IN MANUAL, OR ICS DEMAND DECREASES T0 15%.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: EHC CONTACT AR-603 Rev. 11 Page 69 l

ENCLOSURE 1 (Page 68 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-0109 0-04-09 TURB GEN SPEED CHANNEL TROUBLE-EVENT POINT 1662 INDICATED CONDITION:

o SPEED REFERENCE CHANNEL FAILURE.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o SPEED REFERENCE MONITOR IS BACKLIGHTED ON THE EHC CONTROL PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

)

o STABILIZE THE PLANT IF THE TURBINE HAS SHIFTED OUT OF ICS CONTROL INTO MANUAL l

DISCUSSION:

\\

THE EHC CONTROLLER WILL REVERT TO THE MANUAL MODE IF THERE IS A FAILURE 0F ANY ONE OF THE FOLLOWING CHANNELS: MAIN SPEED, AUX SPEED, SPEED REFERENCE, LOAD REFERENCE.

HEADER PRESSURE CONTROL WITH THE TURBINE IN MANUAL IS VIA OPERATOR ACTION USING GV OR TV OPEN OR CLOSE P/B's IN ADDITION THE TBV'S WILL CONTROL HEADER PRESSURE IF HEADER PRESSURE ERROR IS 50 PSIG, REACTOR BAILEY IS ALSO IN MANUAL, OR ICS DEMAND DECREASES TO 15%.

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: EHC CONTACT AR-603 Rev. 11 Page 70 j

~

ENCLOSURE 1 (Page 69 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-09 0-04-09 TURB GEN SPEED CHANNEL TROUBLE EVENT POINT 1673 INDICATED CONDITION:

o OPC TRANSDUCER OR SPEED PROTECTION CONTROL CIRCUIT FAILURE.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O o OPC FAILURE INDICATION ON EHC CONTROL PANEL.

OPERATOR ACTIONS FOR A VALID ALARM:

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-27 SENSING ELEMENT: EHC CONTACT AR-603 Rev. 11 Page 71

LNCLOSURE 1

/

(Page 70 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-04-10 0-04-10 TURB

~

AT ZERO SPEED EVENT POINT 1623 INDICATED CONDITION:

o TURBINE GENERATOR SHAFT HAS STOPPED ROLLING.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE SHAFT SPEED INDICATION ON EHC CONTROL PANEL.

O COMPUTER POINT T010.

OPERATOR ACTIONS FOR A VALID ALARM:

o ENSURE TURNING GEAR IS ENGAGED AND SHAFT IS TURNING.

o NOTIFY SECONDARY PLANT OPERATOR TO PLACE TURBINE ON TURNING GEAR MANUALLY IF AUTO FUNCTION DOES NOT OPERATE.

DISCUSSION:

l

REFERENCES:

DRAWING 208-057 TB-06 SENSING ELEMENT: 14/ZSX RELAY AR-603 Rev. Il Page 72 a

l ENCLOSURE 1 (Page 71 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-01 0-05-01 TURB AMSAC CHANNEL TRIP EVENT POINT 2041 i

INDICATED CONDITION:

l 0 REACTOR POWER >45% RTP BLD. FEEDWATER FLOW ON BOTH LOOPS <17% RATED FLOW ON AMSAC CHANNEL "A".

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O' o POWER RANGE NUCLEAR INSTRUMENTS ON MAIN CONTROL BOARD.

O FEEDWATER FLOW (MAIN AND START-UP) INDICATION ON MAIN CONTROL BOARi).

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO AP-660.

o REFER TO E0P.

d DISCUSSION:

AMSAC SENSES REACTOR POWER USING POST ACCIDENT NI'S, AND FEED FLOW USING MAIN AND STARTUP FEED FLOW INSTRUMENTATION.

i

REFERENCES:

DRAWING 205-07.4 SENSING ELEMENT: ATCP-1, AT-7-FS, AT-8-FS 1

AR-603 Rev. 11 Page 73 1

e 8

s ENCLOSVRE 1 (Page 72 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05 0-05-01 TURB AMSAC CHANNEL

~

TRIP EVENT POINT 2042 INDICATED CONDITION:

l 0 REACTOR POWER >45?. RTP AND FEEDWATER FLOW ON BOTH LOOPS <177. RATED FLOW ON AMSAC CHANNEL "B".

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o POWER RANGE NUCLEAR INSTRUMENTS ON MAIN CONTROL BOARD.

o FEEDWATER FLOW (MAIN AND START-UP) INDICATION ON MAIN CONTROL BOARD.

OPERATOR ACTIONS FOR A VALID ALARM:

0 REFER TO AP-660.

)

o REFER TO E0P.

]

DISCUSSION:

AMSAC SENSES REACTOR POWER USING POST ACCIDENT NI'S, AND FEED FLOW USING MAIN AND STARTUP FEED FLOW INSTRUMENTATION.

1

REFERENCES:

DRAWING 205-074 SENSING ELEMENT: ATCP-1, AT-7-FS, AT-8-FS i

AR-603 Rev. 11 Page 74

i 1

ENCLOSURE 1 (Page 73 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-02 0-05-02 TURB AMSAC LOW FLUX

~

BYPASS EVENT POINT 1504 INDICATED CONDITION:

l 0 REACTOR POWER <45% RTP.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o POWER RANGE NUCLEAR INSTRUMENTS ON MAIN CONTROL BOARD.

OPERATOR ACTIONS FOR A VALID ALARM:

l 0 VERIFY LOCAL CABINET STATUS IF REACTOR POWER IS >45% RTP.

1 1

DISCUSSION:

l WITH REACTOR POWER <45% RTP BY POST ACCIDENT NI'S, THEN THE AMSAC CHANNELS ARE BLOCKED FROM TRIPPING.

F

REFERENCES:

DRAWING 205-074 SENSING ELEMENT: ATCP-1, NI-15-NS, NI-14-NS AR-603 Rev. 11 Page 75

ENCLOSURE 1 (Page 74 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-03 0-05-03 1

i l

i

-1 EZ TURB AMSAC CHANNEL IN TEST a

i t

EVENT POINT 1239 INDICATED CONDITION:

o AMSAC CHANNEL "A" IN TEST.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o VERIFY LOCAL CABINET STATUS IF TESTING IS NOT DISCUSSION:

THE OPPOSITE CHANNEL NOT IN TEST IS BLOCKED FRO

REFERENCES:

DRAWING 205-074 SENSING ELEMENT: ATCP-1

\\

AR-603 i

Rev. II Page 76

ENCLOSURE 1 (Page 75 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-03 0-05-03 TURB AMSAC CHANNEL IN TEST EVENT POINT 1243 INDICATED CONDITION:

o AMSAC CHANNEL "B" IN TEST.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o VERIFY LOCAL CABINET STATUS IF TESTING IS NOT IN PROGRESS.

i l

DISCUSSION:

THE OPPOSITE CHANNEL NOT IN TEST IS BLOCKED FROM TRIPPING.

i i

REFERENCES:

DRAWING 205-074 S$NSING ELEMENT: ATCP-1 AR-603 Rev. 11 Page 77 1

^

L l

ENCLOSURE 1 (Page 76 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-05 0-05-05 TURB GEN RADIO FREQ HIGH EVENT POINT 2005 INDICATED CONDITION:

o MAIN GENERATOR RADIO FREQUENCIES ARE HIGH AS SENSED BY RF MONITORING.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

0 RF MONITORING CABINET LOCAL INDICATION OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY TURBINE BUILDING OPERATOR TO INVESTIGATE RF MONITORING CABINET.

'o NOTIFY SYSTEM ENGINEER TO COMPARE WITH OTHER KNOWN DATA.

o REFER TO OP-701.

DISCUSSION:

THIS ALARM SERVES AS AN EARLY WARNING 0F A GENERATOR FAILURE SUCH AS INSULATION BREAKDOWN AND/0R GAS SPACE IMPURITIES THAT MAY HAVE ENTERED T1E GAS SPACES.

THE SYSTEM CONSISTS OF FOUR DETECTORS (ONE FOR EACH PHASE AND ONE FOR THE

1. 8 BEARING) WHICH ARE MONITORED INDIVIDUALLY THE SYSTEM CYCLES THROUGH ALL FOUR POINTS, AND IF ONE EXCEEDS THE ALARM VALUE THE ALARM IS SOUNDED.

THE SYSTEM ENGINEER CAN ASSIST IN DETERMINING IF A VALID CONDITION EXISTS IN THE GENERATOR OR IF THE RF MONITORING EQUIPMENT IS FAILED.

REFERENCES:

DRAWING 208-057 TB-033 SENSING ELEMENT: TB-449-SS AR-603 Rev. 11 Page 78

l ENCLOSURE 1 O

(Page 77 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-06 0-05-06 TURB GEN CONDITION MON

^

HIGH EVENT POINT 1956 INDICATED CONDITION:

o HYDR 0 GEN COOLING GAS CONTAMINATED WITH HIGH CONCENTRATION OF PARTICLE 5 INSIDE MAIN ELECTRICAL GENERATOR.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o HIGH ALARM ON TB-448-AIR TGR SECTION, REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o VERIFY CONDITION ON TB-448-AIR, TGR SECTION, REAR MCB.

o REFER TO OP-701.

o TAKE A BACKUP SAMPLE PER SECTION 4.14 0F SP-325.

DISCUSSION:

THIS ALARM SERVES AS A WARNING OF GENERATOR FAILURE SUCH AS INSULATION BREAKDOWN AND/0R GAS SPACE IMPURITIES THAT MAY HAVE ENTERED THE GAS SPACES.

1

REFERENCES:

DRAWING 208-057 TB-033 SENSING ELEMENT: TB-448-AT AR-603 Rev. 11 Page 79

6' ENCLOSURE 1 (Page 78 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-08 0-05-08 1

GEN AIR SIDE DC SEAL PP OUT OF SERVICE i

EVENT POINT 1676 INDICATED CONDITION:

o TBP-10 LOSS OF DC POWER.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O o HYOR0 GEN PANEL ALARM.

l OPERATOR ACTIONS FOR A VALIO ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE CAUSE OF LOSS OF POWER.

o NOTIFY CHEMISTRY TO MONITOR GENERATOR AREA FOR HYDR 0 GEN CONCENTRATION.

DISCUSSION:

l TBP-10 IS POWERED FROM DPDP-3B SWITCH #13. IF THIS CIRCUIT IS DEENERGIZED l

THEN THIS ALARM IS RECEIVED. THE CONTROL CIRCUIT FOR TBP-10 IS POWERED l

FROM OPDP-3R SWITCH #17. NO ALARM IS ASSOCIATED WITH A LOSS OF POWER ON l

THIS POWER SUPPLY.

l j

I

REFERENCES:

DRAWING 208-057 TB-13 i

SENSING ELEMENT: 3CR RELAY l

AR-603 Rev. 11 Page 80

ENCLOSURE 1 (Page 79 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-09 0-05-09 HYDR 0 GEN PANEL

~

TROUBLE EVENT POINT 1644 INDICATED CONDITION:

o AT LEAST 1 0F 13 DROP TARGETS HAS FALLEN ON THE HYDROGEN ALARM PANEL.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE HYDR 0 GEN ALARM PANEL.

o REFER TO AR-921.

DISCUSSION:

THE FOLLOWING CONDITIONS ARE ALARMED AT THE HYDR 0 GEN ALARM PANEL:

H. PURITY H PRESSURE H SUPPLY H, TEMPERATURE H SIDE HIGH/ LOW ilIGH/ LOW PdESSLOW HIGH LE/EL LOW SEAL OIL WATER DETECTED SEAL OIL TURBINE DEF0AMING TANK PRESS LOW HIGH ALARM B/U PRESS LOW LEVEL HIGH AIR SIDE SEAL H SIDE SEAL AIR SIDE SEAL OIL ALARM PANEL OIL PUMP 0FF OilPUMP0FF B/U PUMP RUN DC POWER FAIL

REFERENCES:

DRAWING 208-057 TB-17 SENSING ELEMENT: VARIOUS INPUTS TO HYDR 0 GEN ALARM PANEL AR-603 Rev. 11 Page 81

(Pa e 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-05-10 0-05-10 HYDR 0 GEN SUPPLY PRESS LOW i

l EVENT POINT 1524 INDICATED CONDITION:

o HYDROGEN MANIFOLD SUPPLY PRESSURE <80 PSIG AS SENSED BY HY-81-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE HYDROGEN TANK PRESSURE.

DISCUSSION:

j

REFERENCES:

DRAWING 209-043 (NG-01)

SENSING ELEMENT: HY-81-PS O

AR-603 Rev. 11 Page 82

(Pa 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR

~

TRIP EVENT POINT 0683 INDICATED CONDITION:

0 GENERATOR NEUTRAL GROUND LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O-o TURBINE TRIPPED INDICATION ON EHC PANEL.

l 0 LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPEPATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

o REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-040 MT-71 SENSING ELEMENT: 86GG-2 i

AR-603 Rev. 11 Page 83 e-e

r t

ENCLOSURE l-(Page 82 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR TRIP EVENT POINT 0684 INDICATED CONDITION:

o STEP-UP TRANSFORMER / GENERATOR DIFFERENTIAL LOCK 0UT RELAY TRIPPED.

?

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

O REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-040 MT-72 SENSING ELEMENT: 186T-2X AR-603 Rev. 11 Page 84

ENCLOSURE 1 7--

(Page 83 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR TRIP 1

l l

EVENT POINT 0685 l

INDICATED CONDITION:

o GENERATOR DIFFERENTIAL LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

O LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

o REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-040 MT-73 r

i SENSING ELEMENT: 86G-2 AR-603 Rev. 11 Page 85

1 ENCLOSURE 1 (Page 84 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 i

GENERATOR TRIP i

EVENT POINT 0686 4

v INDICATED CONDITION:

o GENERATOR BACKUP AND NEGATIVE SEQUENCE LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

O LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

o REFER TO AP-660.

DISCUSSION:

4

REFERENCES:

DRAWING 208-040 MT-74 SENSING ELEMENT: 86BVB-2 AR-603 Rev. 11 Page 86

~

ENCLOSURE I (Page 85 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 j

GENERATOR

~

TRIP EVENT POINT 0687 INDICATED CONDITION:

o GENERATOR FIELD FAILURE LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

O REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-040 MT-75 SENSING ELEMENT: 86FF-2 i

AR-603 Rev. 11 Page 87

- = -

(Pag 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR

~

TRIP EVENT POINT 0690 INDICATED CONDITION:

o STEP-UP TRANSFORMER SUDDEN PRESSURE LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

1 o REFER TO AP-660.

DISCUSSION:

)

REFERENCES:

DRAWING 208-040 MT-80 SENSING ELEMENT: 86SPSU-2X

-AR-603 Rev. 11 Page 88

6 ENCLOSURE l

-(Page 87 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR j

TRIP EVENT POINT 0720 INDICATED CONDITION:

o EXCITER OVERCURRENT AND GENERATOR VOLTAGE / FREQUENCY LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM-0 REFER TO E0P.

0 REFER TO AP-660.

i DISCUSSION:

1

REFERENCES:

DRAWING 208-040 MT-78 SENSING ELEMENT: 86EXC-2 AR-603 Rev. 11 Page 89

(Pa e 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-01 0-06-01 GENERATOR TRIP

~ EVENT POINT 0825 i

INDICATED CONDITION:

o 500 KV SUBSTATION PRIMARY TRIP LOCK 0UT RELAY TRIPPED.

i REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

O LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE GENERATOR FEED AUX ASMBLY SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

O REFER TO AP-660.

i DISCUSSION:

REFERENCES:

DRAWING 208-079 SB-03 SENSING ELEMENT: 86/UTPX AR-603 Rev. 11 Page 90

)

ENCLOSURE 1 (Page 89 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-01 GENERATOR TRIP EVENT POINT 0826 INDICATED CONDITION:

o 500 KV SUBSTATION ALTERNATE TRIP LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE GENERATOR FEED AUX ASMBLY SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o REFER TO E0P.

o REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-079 SB-04 SENSING ELEMENT: 86/UTAX AR-603 Rev. 11 Page 91

ENCLOSURE 1 (Page 90 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-01 f

GENERATOR TRIP t

EVENT POINT 1176 INDICATED CONDITION:

o REACTOR TRIPPED LOCK 0UT RELAY TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIPPED INDICATION ON EHC PANEL.

o LOCK 0UT RELAY AMBER INDICATING LIGHT IS OFF, LOCATED ON THE SSR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

0 REFER TO E0P.

o REFER TO AP-660.

DISCUSSION:

REFERENCES:

DRAWING 208-040 MT-98 SENSING ELEMENT: 86 REC f

AR-603 Rev. 11 Page 92

(Pag 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-02 0-06-02 EXCITER BREAKER TRIP EVENT POINT 1648 l

l INDICATED CONDITION:

o EXCITATION REGULATOR SUPPLY BREAKER TRIPPED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

O o GREEN LIGHT IS ON WITH A RED FLAG ON CONTROL STATION.

l o EXCITER CURRENT INDICATION ON MAIN CONTROL BOARD.

l OPERATOR ACTIONS FOR A VALID ALARM:

y DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-09 SENSING ELEMENT:CS/SC CS/0 CONTROL SWITCH CONTACTS,41AX1/B BREAKER CONTACT AR-603 Rev. 11 Page 93 l

(Pag 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-03 0-06-03 GEN VOLT / HERTZ

~

PRETRIP EVENT POINT 1651 INDICATED CONDITION:

o EXCESSIVE VOLTAGE TO HERTZ RATIO.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE SPEED INDICATION.

o UNIT VOLTAGE INDICATION.

0 EXCITER CURRENT INDICATION.

OPERATOR ACTIONS FOR A VALID ALARM:

o RESTORE SPEED TO SYNCHRONOUS SPEED.

o IF SPEED CANNOT BE INCREASED, TRIP THE FIELD BREAKER.

j l

DISCUSSION:

THE POTENTIAL FOR DAMAGE OCCURS WHEN MAGNETIC DEVICES ARE SATURATED BY EXCESSIVE EXCITATION IN AN ATTEMPT TO MAINTAIN OUTPUT VOLTAGE WHEN SPEED 1

IS DECREASING. THIS ALARM IS A TRUE PRETRIP CONDITION TO THE VOLTS / HERTZ 86 LOCK 0UT RELAY WHICH INITIATES A TURBINE TRIP.

REFERENCES:

DRAWING 208-057 TB-18 SENSING ELEMENT: 59/81 CONTACT AR-603 Rev. 11 Page 94

ENCLOSURE 1 (Page 93 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-04 GENERATOR UNDER FREQUENCY EVENT POINT 1199 INDICATED CONDITION:

o GENERATOR FREQUENCY <58.5 HERTZ AS SENSED BY UNDERFREQUENCY CIRCUIT #F2.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GENERATOR FREQUENCY INDICATION ON MAIN CONTROL BOARD.

o UNDERFREQUENCY TIMER F2 OPERATING, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SYSTEM DISPATCHER.

l l

DISCUSSION:

UNIT #3'S FREQUENCY' CORRECTION CIRCUITS ARE DISABLED. ANY SYSTEM FREQUENCY PROBLEMS SHOULD BE DIRECTED TO THE SYSTEM DISPATCHER FOR CORRECTION. THE GENERATOR LOCKOUT TRIP ON UNDERFREQUENCY IS AT 58 HERTZ DECREASING.

l l

REFERENCES:

DRAWING 208-040 MT-102 SENSING ELEMENT: CP/58.5HZ/F2 AR-603 Rev. 11 Page 95

ENCLOSURE I (Page 94 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-04 GENERATOR

~

UNDER FREQUENCY i

EVENT POINT 1200 INDICATED CONDITION:

o GENERATOR FREQUENCY <59.5 HERTZ AS SENSED BY UNDERFREQUENCY CIRCUIT #F1.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GENERATOR FREQUENCY INDICATION ON MAIN CONTROL BOARD.

o UNDERFREQUENCY TIMER F1 OPERATING, LOCATED ON THE TGR SECTION OF THE REAR MCB.

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SYSTEM DISPATCHER.

DISCUSSION:

UNIT #3'S FREQUENCY CORRECTION CIRCUITS ARE DISABLED, ANY SYSTEM FREQUENCY PROBLEMS SHOULD BE DIRECTED TO THE SYSTEM DISPATCHER FOR CORRECTION. THE GENERATOR LOCK 0UT TRIP ON UNDERFREQUENCY IS AT 58 HERTZ DECREASING.

REFERENCES:

DRAWING 208-040 MT-102 SENSING ELEMENT: CQ/59.5HZ/F1 AR-603 Rev. 11 Page 96

ENCLOSURE 1 (Page 95 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-04 0-06-04 GENERATOR UNDER FREQUENCY EVENT POINT 1999 INDICATED CONDITION:

o GENERATOR FREQUENCY <58 HERTZ FOR >12 SECONDS AS SENSED BY UNDERFREQUENCY CIRCUIT #T3.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o TURBINE TRIP OPERATOR ACTIONS FOR A VALIO ALARM:

o REFER TO E0P.

O REFER TO AP-660.

o NOTIFY SYSTEM DISPATCHER.

DISCUSSION:

THE DESIGN BEHIND THIS CIRCUIT WAS TO ALLOW UNIT #3 AUXILIARY LOADS TO REMAIN POWERED FROM THE AUXILIARY TRANSFORMER AFTER A SYSTEM FREQUENCY DISTURBANCE BY OPENING THE UNITS OUTPUT BREAKERS AND ALLOWING THE UNIT TO RUNBACK TO THE ICS MINIMUM LOAD SETTING. HOWEVER, A 500 KV SUBSTATION CONTACT NOW ENERGIZES 86/UTPX WHEN THE 12 SECOND TIMER ELAPSES, AND A TURBINE TRIP RESULTS. (SEE DRAWINGS 208-079 S8-03,58-05)

REFERENCES:

DRAWING 208-040 MT-102 SENSING ELEMENT: CN/58HZ/T3 AR-603 Rev. 11 Page 97

I (Pag 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-05 0-06-05 EXCITER FIRING CKT

^

POWER LOSS EVENT POINT 1653 INDICATED CONDITION:

o LOSS OF POWER SUPPLY TO EXCITER FIRING CIRCUIT DRAWER #I.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF POWER.

O CHECK FIRING CIRCUIT DRAWER #1 POWER SUPrLY FUSE DISCUSSION:

THE FIRING CIRCUIT ORAWERS ARE REDUtlDANT Afl0 IN PARALLEL. THEY SUPPLY FIRING PULSES TO THE INVERTER TYPE POWER AMPLIFIER. EITHER FIRING CIRCUIT DRAWER WILL PROVIDE SERVICE, BUT THE LOSS OF POWER SHOULD BE INVESTIGATED AND CORRECTED.

REFERENCES:

DRAWING 208-057 TB-18 SENSING ELEMENT: FIRING CIRCUIT #1 AR-603 Rev. 11 Page 98

(Pa 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-05 0-06-05 EXCITER FIRING CKT POWER LOSS EVENT POINT 1654 INDICATED CONDITION:

o LOSS OF POWER SUPPLY TO EXCITER FIRING CIRCUIT DRAWER #2.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

- OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF LOSS OF POWER.

o CHECK FIRING CIRCUIT DRAWER #2 POWER SUPPLY FUSE DISCUSSION:

THE FIRING CIRCUIT DRAWERS ARE REDUNDANT AND IN PARALLEL. THEY SUPPLY FIRING PULSES TO THE INVERTER TYPE POWER AMPLIFIER. EITHER FIRING CIRCUIT DRAWER WILL PROVIDE SERVICE, BUT THE LOSS OF POWER SHOULD BE INVESTIGATED AND CORRECTED.

f

REFERENCES:

DRAWING 208-057 TB-18 SENSING ELEMENT: FIRING CIRCUIT #2 AR-603 Rev. 11 Page 99 m

%e-

+n e-r-7 t-ws-

ENCLOSURE 1 (Page 98.of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-06 -l 0-06-06 EXCITER

~

GROUND EVENT POINT 1656 l

INDICATED CONDITION:

o EXCITER CIRCUIT GROUND DETECTED REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE CAUSE OF EXCITER GROUND.

o NOTIFY SYSTEM ENGINEERING.

l l

DISCUSSION:

THE INSTALLED GROUND DETECTOR PERFORMS AN AUTOMATIC GROUND CHECK ONCE EACH 24 HOURS, USUALLY ON THE MIDNIGHT SHIFT. IT WILL ANNUNCIATE FOR ALL VALUES OF INSULATION RESISTANCE BELOW 13K OHMS, AND BETWEEN 13K OHMS AND 100K OHMS DEPENDING ON GROUND LOCATION. ANY VALUE A80VE 100K OHMS IS CONSIDERED SATISFACTORY.

REFERENCES:

DRAWING 208-057 TB-18 SENSING ELEMENT: EXCITER SWITCHGEAR 64 CONTACT AR-603 Rev. 11 Page 130

-_____________a

f ENCLOSURE 1 (Page 99 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-07 EXCITER I

LIMITED PRETRIP EVENT POINT 1650 INDICATED CONDITION:

o EXCITER EXCITATION IS HIGHER THAN A PRESET VALUE.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o EXCITER VOLTAGE INDICATION ON MAIN CONTROL BOARD.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE EXCITER EXCITATION TO NORMAL VALUES BASED ON V0LTAGE INDICATION.

DISCUSSION:

0VEREXCITATION RESULTS IN EXCESSIVE TEMPERATURE OF THE SYNCHRON0US FIELD WINDINGS. THIS ALARM, CALLED AN " EXCITATION FORCING ALARM" WARNS THAT EXCITATION PRESET VALUES HAVE BEEN EXCEEDED.

~

REFERENCES:

DRAWING 208-057 TB-18 i

SENSING ELEMENT: EXCITER SWITCHGEAR K4 CONTACT AR-603 Rev. 11 Page 101

~'

ENCLOSURE 1 (Page 100 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-08 0-06-08 EXCITER RAISE INHIBIT EVENT POINT 1522 INDICATED CONDITION:

WITH UNIT OUTPUT BREAKERS OPEN AND THE FOLLOWING:

o GENERATOR EXCITER HAS REACHED AN EXCITATION LIMIT IMPOSED.

0B o GENERATOR EXCITER HAS REACHED A CURRENT LIMIT IMPOSED O

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o GENERATOR OUTPUT VOLTAGE WILL NOT INCREASE WHEN EITHER THE BASE ADJUST OR VOLTAGE ADJUST KNOBS ARE INCREASED.

OPERATOR ACTIONS FOR A VALID ALARM:

o REDUCE EXCITER EXCITATION TO NORMAL VALUES BASED ON VOLTAGE INDICATION.

O IF EXCITATION APPEARS NORMAL BUT THE ALARM WILL NOT CLEAR, NOTIFY SYSTEM ENGINEERING TO EVALUATE THE PROBLEM.

DISCUSSION:

0VEREXCITATION RESULTS IN EXCESSIVE TEMPERATURE OF THE SYNCHRONOUS FIELD WINDINGS. THIS ALARM MAY ANNUNCIATE TEMPORARILY DURING RELAY OPERATION FOR STARTUP AND OTHER TIMES WITH THE MAIN GENERATOR IN A NO-LOAD CONDITION.

{

REFERENCES:

DRAWING 208-057 TB-18 SENSING ELEMENT: EXCITER SWITCHGEAR DX3 CONTACT AR-603 Rev. 11 Page 102

ENCLOSURE 1 (Page 101 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-09 0-06-09 GEN RELAY POT XFMR FAILURE EVENT POINT 0688 INDICATED CONDITION:

o GENERATOR POTENTIAL TRANSFORMER FAILED.

O REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

0 INVESTIGATE LOSS OF GENERATOR POTENTIAL TRANSFORMER.

DISCUSSION:

LOSS OF THE GENERATOR POTENTIAL TRANSFORMER WILL HAVE UNPREDICTABLE EFFECTS ON THE OPERATION OF THE GENERATOR BACKUP RELAY (ie. MAY CAUSE IT TO ACTUATE INADVERTENTLY OR FAIL TO OPERATE FOR A VALID CONDITION).

THE GENERATOR BACKUP RELAY PROVIDES TRIP FUNCTION FOR THE MAIN GENERATOR OUTPUT BREAKERS FOR GENERATOR OR BUS ELECTRICAL FAULTS.

REFERENCES:

DRAWING 208-040 MT-76 SENSING ELEMENT: K60/A RELAY CONTACT AR-603 Rev. 11 Page 103

l l

i (Pag 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-09 0-06-09 GEN RELAY.

1 POT XFMR FAILURE EVENT POINT 0689 INDICATED CONDITION:

o EXCITER POTENTIAL TRANSFORMER FAILED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o INVESTIGATE LOSS OF EXCITER POTENTIAL TRANSFORMER.

DISCUSSION:

LOSS OF THE EXCITER POTENTIAL TRANSFORMER WILL HAVE UNPREDICTABLE EFFECTS ON THE OPERATION OF THE GENERATOR FIELD FAILURE RELAY (ie. MAY CAUSE IT TO ACTUATE INADVERTENTLY OR FAIL TO OPERATE FOR A VALID CONDITION).

THE GENERATOR BACKUP RELAY PROVIDES TRIP FUNCTION FOR THE MAIN GENERATOR OUTPUT BREAKERS FOR GENERATOR OR BUS ELECTRICAL FAULTS.

REFERENCES:

DRAWING 208-040 MT-76 SENSING ELEMENT: K60/B RELAY CONTACT AR-603 Rev. 11 Page 104

ENCLOSURE 1 (Page 103 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-10 0-06-10 ISOLATED PHASE BUS DUCT

~

TROUBLE z

EVENT POINT 1645 INDICATED CONDITION:

o PHASE BUS DUCT BLOWER FAN 3A NOT RUNNING WITH SWITCH IN AUT0-AND GENERATOR FIELD BREAKER CLOSED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o ISOLATED PHASE BUS DUCT FLOW LOW EVENT POINT 1647 OR, ISOLATED PHASE BUS DUCT TEMPERATURE HIGH EVENT POINT 1646.

OPERATOR ACTIONS FOR A VALID ALARM:

o IMMEDIATELY REDUCE LOAD TO < THE SELF COOLED RATING 0F 10,000 AMPS AS INDICATED ON THE GENERATOR AMPS DIAL INDICATOR ON 1HE TGF PANEL.

o MAINTAIN THE DUCT TEMPERATURE < 151' BY REDUCTION IN GENERATOR OUTPUT AND TRANSFERRING LOADS FROM THE AUXILIARY TRANSFORMER.

o NOTIFY SECONDARY PLANT OPERATOR TO MONITOR THE DUCT TEMPERATURE LOCALLY ON TB-338-TS, AND INVESTIGATE PROBLEMS.

DISCUSSION:

o THE RATE OF LOAD REDUCTION SHOULD BE BASED ON THE RATE OF RISE OF DUCT TEMPERATURE.

REFERENCES:

DRAWING 208-057 TB-23 SENSING ELEMENT: 42X/17CR, 42/16M_ RELAY CONTACTS O

AR-603 Rev. 11 Page 105

ENCLOSURE 1 (Page 104 of 108) c TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06 0-06-10 1

ISOLATED PHASE d

BUS DUCT TROUBLE

---

g.

EVENT POINT 1646 INDICATED CONDITION:

o PHASE BUS DUCT RETURN AIR TEMPERATURE >151 'F AS SENSED BY TB-338-TS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

)

O OPERATOR ACTIONS FOR A VALID ALARM:

o IF FORCED COOLING HAS BEEN LOST, THEN IMMEDIATELY REDUCE LOAD TO < THE SELF COOLED RATING OF 10,000 AMPS AS INDICATED ON THE GENERATOR AMPS INDICATOR ON THE TGF PANEL.

o MAINTAIN THE DUCT TEMPERATURE < 151' F BY REDUCTION IN GENERATOR OUTPUT AND TRANSFERRING LOADS FROM THE AUXILIARY TRANSFORMER.

o NOTIFY SECONDARY PLANT OPERATOR TO MONITOR THE DUCT TEMPERATURE LOCALLY t

ON TB-338-TS, AND INVESTIGATE PROBLEMS.

DISCUSSION:

0 THE RATE OF LOAD REDUCTION SHOULD BE BASED ON THE RATE OF RISE OF DUCT TEMPERATURE.

REFERENCES:

DRAWING 208-057 TB-23 SENSING ELEMENT: TB-338-TS O

AR-603 Rev. 11 Page 106

- =- -

~'

ENCLOSURE 1 (Page 105 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-10 0-06-10 ISOLATED PHASE BUS DUCT TROUBLE Z---

EVENT POINT 1647 INDICATED CONDITION:

o PHASE BUS DUCT AIR FLOW AS SENSED BY TB-338-FS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o PHASE BUS DUCT BLOWER FAN NOT RUNNING WITH SWITCH IN AUTO AND THE GENERATOR FIELD BREAKER CLOSED EVENT POINT 1645 OR 1655.

OPERATOR ACTIONS FOR A VALID ALARM:

o IF FORCED COOLING HAS BEEN LOST, THEN IMMEDIATELY REDUCE LOAD TO < THE SELF COOLED RATING OF 10,000 AMPS AS INDICATED ON THE GENERATOR AMPS DIAL INDICATOR ON THE TGF PANEL.

O MAINTAIN THE DUCT TEMPERATURE < 151' F BY REDUCTION IN GENERATOR OUTPUT AND TRANSFERRING LOADS FROM THE AUXILIARY TRANSFORMER.

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE ISOLATED PHASE BUS DUCT COOLING SYSTEM.

DISCUSSION:

o THE RATE OF LOAD REDUCTION SHOULD BE BASED ON THE RATE OF RISE OF DUCT TEMPERATURE.

REFERENCES:

DRAWING 208-057 TB-23 SENSING ELEMENT: TB-339-FS O

l AR-603 Rev. 11 Page 107

i ENCLOSURE 1

()

(Page 106 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-10 0 06-10 4

i ISOLATED PHASE 4

BUS DUCT TROUBLE EVENT POINT 1652 INDICATED CONDITION:

o PHASE BUS DUCT AIR HUMIDITY >50% AS SENSED BY TB-341-HS.

i O

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE ISOLATED PHASE BUS DUCT COOLING SYSTEM.

DISCUSSION:

REFERENCES:

DRAWING 208 057 TB-23

()

SENSING ELEMENT: TB-341-HS AR-603 Rev. 11 Page 108

n

~~

ENCLOSURE 1

(

(Page 107 of 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-10 0-06-10 ISOLATED PHASE BUS DUCT

~

TROUBLE Z

g EVENT POINT 1655 INDICATED CONDITION:

o PHASE BUS DUCT BLOWER FAN 3B NOT RUNNING WITH SWITCH IN AUTO AND GENERATOR FIELD BREAKER CLOSED.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

o ISOLATED PHASE BUS DUCT AIR FLOW LOW EVENT POINT 1647 OR, ISOLATED PHASE BUS DUCT TEMPERATURE HIGH EVENT POINT 1646.

OPERATOR ACTIONS FOR A VALID ALARM:

o IMMEDIATELY REDUCE LOAD TO < THE SELF COOLED RATING OF 10,000 AMPS AS INDICATED ON THE GENERATOR AMPS DIAL INDICATOR ON THE TGF PANEL.

O MAINTAIN THE DUCT TEMPERATURE <151' F BY REDUCTION IN GENERATOR OUTPUT AND TRANSFERRING LOADS FROM THE AUXILIARY TRANSFORMER.

o NOTIFY SECONDARY PLANT OPERATOR TO MONITOR THE DUCT TEMPERATURE LOCALLY ON TB-338-TS, AND INVESTIGATE PROBLEMS.

DISCUSSION:

o THE RATE OF LOAD REDUCTION SHOULD BE BASED ON THE RATE OF RISE OF DUCT TEMPERATURE.

REFERENCES:

DRAWING 208-057 TB-23 SENSING ELEMENT: 42X/25CR, 42/19M RELAY CONTACTS O

AR-603 Rev. 11 Page 109

P (Pag o 108)

TGF 0 ANNUNCIATOR RESPONSE TGF-AX3-06-10 0-06-10 ISOLATED PHASE BUS DUCT TROUBLE EVENT POINT 1675 INDICATED CONDITION:

o PHASE BUS DUCT AIR FILTER DIFFERENTIAL PRESSURE >1" H O AS SENSED BY 2

TB-340-PS.

REDUNDANT INDICATION WHICH WILL VERIFY ALARM:

4 OPERATOR ACTIONS FOR A VALID ALARM:

o NOTIFY SECONDARY PLANT OPERATOR TO INVESTIGATE ISOLATED PHASE BUS DUCT COOLING SYSTEM AIR FILTER, AND REPLACE AS REQUIRED.

DISCUSSION:

REFERENCES:

DRAWING 208-057 TB-23 SENSING ELEMENT: TB-340-PS l

AR-603 Rev. 11 Page 110 (LAST PAGE)