Text

Final Rev 5 to Degraded Vital Bus Undervoltage Setpoint
	ML20069F991
Person / Time
Site:	Salem
Issue date:	11/26/1993
From:	Matthew Mitchell; Public Service Enterprise Group
To:	;
Shared Package
ML18100B120	List: ML18100B119; ML18100B121; ML20069F991;
References
	S-C-4KV-JDC-959, S-C-4KV-JDC-959-R05, S-C-4KV-JDC-959-R5, NUDOCS 9406090183
	Download: ML20069F991 (41)
	v • d • e

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Nuclest Decar1 ment ID NUMBER SE3RT

( ) CALCULATION COVER STEET S-C-4kV-JDC-959 RXTEluDSCE 37 ,l;

[g ypq / oy CALCU MTION REVISION ggg3 4 5 CP NUMBER FOR INF6 iliaATION ONI.Y p w REVISION HISTORY Pages #12 to #22 (INTERIM or FINAL) and #32. deleted. AAtvlMMf apy 59 INTERIM = Proposed Plant pyggt Nest page #12 added, gr} g hgg to and 1 Change Attachment page ## gngg g FINAL = Supports Instal. changed.

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l FUTURE CONFIRMATIOH REQUIRED: N/A /

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COVER SHEET (Number Pages) I I 5 CALCULATIONS (Humber Pages) 2/

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ATTACHMENTS

.f/2 G 6/26 (Humber/ Total Pages) 6/25 TOTAL PAGES 48 67 37 IMPORTANT TO SATETY Q YES R 80 <

i If yes, design verification verification, Ref. 8,3) required per DE-AP.ZZ-0010(Q) (Design

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SETPOINT WN 2 ISC-2269 ORIGINATOn AEF 2 _Alf 4 -

CALCULATION DATE 3/zt/,3 g//p/f3 - - -

M CONTINUATION SHEET PEER REVIEW Cr g7 -

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TABLE OF CONTENTS i SECTION TITLE PAGE !

l COVER SHEET . . . . . . . . . ........ 1

TABLE OF CONTENTS . . . . . . ........ 2 i i 1.0 OBJECTIVES . . . . . . . . .' . ........ 3 A

2.0 DESIGN BASIS . . . . . . . . . ........ 3 3.0 ASSUMPTIONS . . . . . . . . . ........ 4 4.0 ANALYSIS . . . . . . . . . . . ........ 4 5.0 RESULTS

. . . . . . . . . . . ........ 10

6.0 REFERENCES

. . . . . . . . . . ........ 11 7.0 ATTACHMENTS . . . . . . . . . ........ 12 b

l I DE. AP ZZ.0002(O) ATT A C-'.' E *.

2

TITLE DEGRADED VITAL

' I to NO.

BUS UNDERVOLTAGE s.C-4kV-JDC-959 SHEET

< b SETPOINT REFERENCE ISC-2269 3 ORIGINATOR AU 2. A& 4 MOM CALCULATION 4/7/93- 6 CONTINUATION SHEET DATE PEER REVIEW er s//8/93 w/so/(3 ~""" -

N J7 LFP 37 DATE sp/1] C//N)1 nh.2/43 1.0 OBJECTIVE To determine the setpoints of the Model 27N Undervoltage Relays for degraded grid protection at Unit #1 and Unit #2 g per Electrical Upgrade Project power system configuration.

The following components are affected:

1ASWGRUVLT1A1 1BSWGRUVLT1B1 1ASWGRUVLT1A2 1CSWGRUVLTIC1 1BSWGRUVLT182 1CSWGRUVLTIC2 1ASWGRUVLT1A3 1BSWGRUVLTIB3 1CSWGRUVLTIC3 2ASWGRUVLT2A1 2BSWGRUVLT2B1 2ASWGRUVLT2A2 2CSWGRUVLT2C1 2BSWGRUVLT2B2 2ASWGRUVLT2A3 2BSWGRUVLT2B3 2CSWGRUVLT2C2 2CSWGRUVLT2C3 h

2.0 DESIGN BASIS 2.1 The 6.2).

minimum allowable vital bus voltage is 94% (Ref.

The undervoltage relay dropout setpoint should be above 94% with the sufficient margin to compensate a combined accuracy / repeatability error of the relays, potential transformers and testing equipment.

dropout setpoint of The 95.1 % will be considered in calculation.

The minimum value of a vital bus recovery voltage during the worst transient is above 97% (Ref. 6.2, 6.3 and 6.8). 'The 97% will be considered in calculation.

The undervoltage relay reset setpoint should be below the minimum bus recovery voltage.

The present technical specification time delay setpoint is 13 seconds and allowable value is 15 seconds (Ref.

6.5).

All voltage and time delay setpoints will be evaluated to determine if the accuracies resulting from using relays, pts and testing equipment are conservative, 2.2 It is required that the testing will be performed using i j

I a Digital Fluke model #8600A or equivalent. This model has an accuracy of 0.2% at 60 hz.

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mLI DEGRADED VITA 1.

BUS UNDERVOLTAGE C No s.C-4kV-JDC-959 A'

SWEET SETPOINT "UEAENCE 15C-2269 4 ORIGINATOR AU 2. 4 M0M S "

CALCULATION CONTINUATION SHEET DATE PEER REVIEW 3/1M/ 93 57 g-

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_n/nPtf 2.3 All repeatability dropout setpoint errors are based on percent of manufacturer. ( 113.0 VAC ) , Per telecon with relay 2.4 Drift is considered instruction manual, inper the accuracies given in the manufacturer. conversation with relay 2.5 aIn accordance 20 (2 with Technical Standard, DE-TS. ZZ-001(Q)

Sigma) accuracy is used within ,

calculation. this 2.6 The voltage and calculation for time the delay setpoints determined in this degraded grid protection are applicable undervoltage used as input data for the forTechnical both Units. and will be Specification (Ref. 6.5). b 3.0 ASSUMPTIONS

( ) 3.1 The ambient temperature range inside the associated cubicle will be between 65*F and 125 F. Reference CBD states that the ambient room temperature is between 65 F and 105 F (Ref. 6.7). .

3.2 Since the dropout (trip setpoint) is set as a percent of pickup (reset setpoint), it is assumed that both settings drift 61rectly proportional to each other.

3.3 A 3o (3 Sigma) given in the accuracy can be assumed on accuracies manufacturer.

instruction manual, per telecon with testing, quantity of samples,This is based on the manufacturers test program. and Class 1E dedication 4.0 ANALYSIS 4.1 Dropout Setpoint Calculation 4.1.1 Vital Bus Voltage Base: 4160 VAC With PT ratio of 35:1, 4160/35

= 118.857 VAC l I DE.AP ZZ 000h0)

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,f i TTTLE DEORADED VITAL 80 e S-C-4kV-JDC-959 SHEET BUS UNDERVOLTAGE O-

G SETPOINT #UERENCE ISC-2269 ORIGWATOR AN 2 -AM 4 _MDM OF 3/21/93 5 i

' CALCULATION DATE s////93 -

_f l/go/q3 -

i CONTINUATION SHEET PEER REVIEW 5 T' f- 2pp DATE 1/2dH thPM) 11/J1/93 37 4.1.2 Minimum Allowable Bus Voltage:

=94% of 4160/35 volt (Refer to section 2.1)

(0.94) (118.857) = 111.726 VAC 4.1.3 Undervoltage Relay Trip Setpoint:

=95.1 % of 4160/35 volt (Refer to section 2.1)

(0.951) (118.857) = 113.033 VAC Actual Trip Setpoint - 113.0 VAC (Calibration tolerance: ~ JJ11to11313) L 4.2 Error Effects:

l 4.2.1 Temperature Effect:

For relay with harmonic filter (Ref. 6.1) '

10.75% from 32'T to 131'F (0 to +55'C) g (Dif f = 99'F)

TE = 0.75% = 0.0076%

99'T 'T Ambient temperature range = 65'F to 125'T (Diff = 60'F)

Temperature effect over the temperature range:

(Percent of Trip Setpoint)

TE = (.0076)f60) 100 ,

[113.0] = 0.515 VAC k 4.2.2 Repeatability over " Allowable" DC control power range:

10.1% of Trip Setpoint (note: 100 - 140 VDC =

DC power range) (Ref. 6.1) 0.1% of 113.0 VAC (0.001)(113.0) = 0.113 VAC l I nF. A D 77.Wornt

TTTUE DECPADED VITAL 80

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. t S-C-4kV-JDC-959 SHE ET

BUS UNDERVOLTAGE SETP01NT *EFE N E b ISC-2269 O

ORIGINATOR AEF 2 & 4- MDM 5 OF O CALCULATION DATE 4'2 9/ f 3 s////13 -

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CONTINUATION SHEET PEER REVIEW 3# r7 Lfp DATE its')/ > .' G4tW 1 n/12/93 0A 4.2.3 Repeatability at constant temperature and constant c.ontrol voltage:

10.1% of Trip Setpoint (Ref. 6.1) 0.1% of 113.0 VAC (0.001) (113.0) = 0._lll_YAC 4.2.4 Fluke Accuracy:

10.2% + li Div. Least Significant Digit FA = 0.2% of Trip Setpoint + 0.05V

=

(0.002)( 113.0 ) + 0.05 0.276 VAC 4.2.5 Potential Transformer Accuracy:

1 0.3% of Trip Satpoint

,G

() r PTA = 0.3% of 113.0 VAC

=

(0.003) (113.0) 0.339 VAC k 4.3 Relay Accuracy: (with 36 accuracy)

RA = (2/3) / ( 0.515 )# + ( 0.113 )' + ( 0.113 )3

= 0.3595 VAC 4.4 Total Error Calculation with Fluke and PT accuracies:

4.4.1 Total error for the Trip Setpoint.

Total Error = {(RA)2 + (73)2 + (PTA)2

=/(0.3595)* + (0.276)1 + (0.339)1

= V0.3203

= 0.5659 VAC })

= 0.566 VAC 1 1:

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i i TITLE DEGRADED VITAL ID No.

S-C-4kV-J DC-9 59 SHEET)

O PS'# BUS UNDERVOLTAGE SETPOINT REFERENCE ISC 2269 7 ORIGINATOR M 2. AU 4 MM CALCULATION DATE 4/7/93 U///73 O /10 /4 3 CONTINUATION SHEET PEER REVIEW DATE 57 4/7/91 rr f/1940 2/P it/22]qb 37 /

4.5 Error Evaluation The error evaluation determines the minimum voltage which may cause the UV relay to trip. This considers the actual trip setpoint, calibration tolerances and total loop errors.

UV relay setpoint = 113.000 VAC Calibration Tolerance = -0.500 VAC Total error (4.4) = -0.566 VAC Allowable " LOOP" Trip = 111.934 VAC(94.17%)

which is greater than the minimum allowable bus voltage of 111.726 VAC (94%), therefore the UV

- relay setpoint of 113.0 VAC (95.1%) is acceptable.

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, 4.5.1 Allowable Value (Maximum expected Trip Calibration Error)

The Allowable value for the Trip Setpoint considers only the part of the loop tested during surveillances (Relay and Test instrument) . The calculated allowable value is the minimum voltage e that ensures the relay would have functioned at or above the 94% setpoint.

Allowable value (AV) = Calculated Trip Setpoint (CSP) - Testing Inaccuracy (TI). CSP is the difference between the Analytical Limit and the Total Loop Accuracy (TLA). In this case, the limit not to be exceeded is a process limit (PL) which is the Minimum Bus Voltage ( 111.726 VAC or 94% )

and TLA is 0.566 VAC (s;ection 4.4.1).

CSP = PL + TLA

= 111.726 + 0.566

= 112.292 VAC TI = 0.319 (section 4.6.4)

AV = CSP - TI (r- ). = 112.292 - 0.319

= 111.973 (94.2%)

, TITLE DEGRADED VITAL io No A

S-C-4kV-JDC-959 SHEET BUS UNDERVOLTAGE SETPOINT REFERENCE t 73ggg 3 ORIGINATOR @ 2 AN 4 [04) 6 CALCULATION CONTINUATION SHEET DATE PEER REVIEW 4/7/93 r7 6////93 ////o/43 N rr ter 37 OATE 212h UM9] nin/93 4.6 Reset Setpoint Calculation 4.6.1 The reset must setpoint of the degraded grid relays be less than the minimum expected recovery voltage at vital bus. The total error value from section 4.4.1 ( 0.566 VAC) should be used in the reset calculation..

Minimum bus recovery voltage is 97% (Refer to section 2.1).

Relay reset setpoint plus total error s (0.97) (118.857) 5 115.291 VAC 4.6.2 The 0.9 % Deadband between trip and reset setpoints (99% dropout tap setting and internal potentiometer) is acceptable because of the following calculation:

Reset Setpoint = Trip setpoint/99.1%

= 113. 0/ (O. 991)

= 114.026 VAC Actual Roset Setpoint = 114.1 VAC (96.0 %)

(Calibration Tolerance: 113.6 to 114.6 VAC ) I 4.6.3 The maximum relay reset voltage combines the relay reset setpoint including calibration tolerance and total error.

Maximum reset = 114.600 0.566

= 115.166 VAC (96.9%)

which is less than the minimum bus recovery voltage 115.291 VAC.

Therefore, the undervoltage relay reset setpoint of 114.1 VAC is acceptable.

4.6.4 Allowable Value (Maximun Expected Roset Calibration Errors) : ( f. 6.9)

Allowable value (AV) =

calculated Setpoint (CS P) + Testing Inaccuracy (TI).

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nTLE DECRADED VITAL 50 W A

i 5-C-4kV-JDC-959 SHEET

. BUS UNDERVOLTAGE

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SETPOINT REFERENCE ISC-2269 9 ORIGINATOR AN _A 8 8 3 NO CF V CALCULATION DATE 4/7/73 ~

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4 _ NOM 5 S/28/Y3 (////D _n ho/43 CONTINUATlON SHEET PEER REVIEW r"7 f- .5 < f.8 OATE

f? S \ ~ 2nd c// P/9 L 177 .

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CSP is the difference between the Analytical Limit ( AL) and the Total Loop Accuracy (TLA).

For this case, the limit not to be exceeded is a Process Limit (PL) which is Minimum Bus Recovery Voltage (115.291 VAC or 97%) and TLA is C.566 VAC (section 4.4.1).

CSP o PL - TLA

=

115.291 - 0.566

= 114.725 VAC It temperature is assumed to be relatively consistant between each calibration, the TI combines relay repeatability over " Allowable" DC control power range (section 4.2.2), relay repeatability at constant temperature and constant control voltage (section 4.2.3), and Fluke accuracy (section 4.2.4): i TI = /(0.113 )2. + C:(o,113}1 + (0.276)E

=

/0.1017

= 0.319 Therefore, Allowable Value for Reset:

AV = CSP + TI

=

114.725 + 0.319

= 115.046 VAC (96.8%)

4.7 Time Delay Evaluation:

Tech Tech Spec Spec Allowable Time Delay Setpoint: s 13 Seconds (Ref.6.5)

Value:

(Tech Spec Table 3.3-4, func unit s 15 Seconds (Ref.6.5)

7b) .'

Time Delay Setting Tolerances: '

1 ABB Model 27N Undervoltage Relay with time delay range of 2 to 20 seconds (Ref. 6.10) g

=1 10% of setting'(Ref.6.1)

Doble FT-2 Power Timer = 0.1% of range (Ref.6.6) \

27N Relay Error ==(10%) (13 sec) 1.3 see l Doble FT-2 Power Timer = (0.1%) (99.9 sec) = 0.1 see OE. AP Z2-0002101 A TT A C - v f *.* 2 :

- -~~- - -

TITLE A

DECRADED VITAL iO No.

Q S-C-4kV-JDC-959 3 b BUS UNDERVOLTAGE SETPOINT REFERENCE SMEET ISC-2269 G ORtGlNATOR MP 2 __M 3 f& 4 _#/M CF CALCULATION DATE 4/7/ t} S/28/93 f////93 6

CONTINUATION SHEET PEER REVIEW 0 ATE J/ 07 _f7

_it// o/13

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@ 7/41 17tMl 64tM93 y7

_uf%l93 Conservatively add errors:

Total Time Error = 1.3 + 0.1 = 1.4 seconds Total Time Error plus Technical Specification Time Delay must be less than allowable value of 15 seconds.

Time Delay = 13.0 see Total Error = + 1.4 see 14.4 see which is < 15 seconds This calculation verifies that the total error from the ABB Model 27H Undervoltage Relay and the Doble FT-2 Timer is acceptable because the total time is less than l d the allowable time of 15 seconds.

5.0 RESULTS 5.1 Trip Setpoint Result:

Conclusion:

Recuired Trip Setpoint of 113.0 VAC

( ) (+ / - 0.500 VAC ) or 95.1% based on postulated accuracy / repeatability of protective and testing devices is acceptable.

5.2 Reset Setpoint Result:

Conclusion:

Required Reset Setpoint of 114.1 VAC

( + / - 0.500 VAC ) or 96.0% based on postulated accuracy / repeatability of protective and testing devices is acceptable.

5.3 Time Delay Result:

Conclusion:

Current time delay of 13 seconds is l acceptable based on the ABB Model 27N l Undervoltage Relay and Doble FT-2 Power Timer Specifications.

5.4 The relay setpoints listed above are applicable for Unit #1 and Unit'/2 of the Salem Nuclear Generating Station only after implementation of ISC-2269 package d 6 &7 and appropriate License Change Request.

l I l NOTE: See Attachment #3 for pictogram of results.

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inu DEGRADED VITAL k

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BUS WDERVOLTAGE SETPOINT SHEET REFEAENCE ISC-2269 MP O' CALCULATION ORIGINATOR DATE 4/7/93 2 _M S/23/f3 3 AM 4//t/f3 4

g 0F CONTINUATlON SHEET PEER REVIEW r~ ~~

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6.0 REFERENCES

6.1 ABB High Manufacturers Instruction Manual for the Type 27N Accuracy Undervoltage Relay, #IB !

7.4.1.7-7; (Attachment #1). i 6.2 Calculation Study", Rev.

ES-15.008 " Salem Unit 1 & 2 Degraded Grid l 2.

g 6.3 Calculation ES-15.004 " Load Flow & Motor Starting Calculation", Rev. O.

6.4 Salem Generating Station - FSAR - Section 7.3.1.1.10.5 and Section 8.3.1.2, 4160-Volt System, Revision #8.

6.5 Salem Technical Specifications -

Engineered Safety Feature Actuation System, Table 3.3-4, page 3/4 3-26. ,

6.6 Doble Model FT-2 Power Systems Timer, Specification Sheet page 3, obtained from Salem (M&TE) Maintenance &

Q Test Equipment Dept; (Attachment #2). !

6.7 Control Area Ventilation CBD, DE-CB.CAV-0013(Q).

~

6.8 Rev.

Calculation 1.

ES-15.012 " Salem Unit 1 & 2 Bus Tr '

l 6.9 PSE&G Letter # ELE-92-0626 from J. '

D. Carey to R. W.

Chranowski, " Method for Calculating Allowable Value" dated 11/19/92; (Attachment #4).

6.10 PSBP #316072, Rev. 2; (Selected pages, Attachment #5). d l 6.11 Design Change Package (DCP) #1SC-2269. '

6.12 License Change Request (LCR) #93-10.

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DE. AP ZZ.0002(On ATTACWENT 2

TITLE DECRADED VITAL

10 No.

BUS UNDERVOLTAGE s.C-4kV-JDC-959 SHEET SETPOINT REFERE E E ggg,77g9 /2 ORIGINATOR M 4- /10/4 6 OF CALCULATION DATE 6//#/93 -

vho/02 -

p CONTINUATION SHEET PEER REVIEW /7 _24F OATE W/M/ ll/nJ93 7.0 ATTACHHENTS

1 ABB Hanufacturers Instruction Manual for the Type 27N High Accuracy Undervoltage Relay, #IB 7.4.1.7-7.

2 Doble Model Sheet, page 3.FT-2 Power Systems Timer, Specification g

3 Pictogram for Final Trip and Reset Satpoint results.

4 PSE&G Letter # ELE-92-0626 from J. D. Carey to R. W.

Chranowski, " Method for Calculating Allowable Value" dated 11/19/92. See note below.

Note:

This letter provided the methodology for determining the Allowable Value as well as provides the Allowable Value. Since the issuance of this letter the Allowable Value has changed due to a change in the calibration tolerance; therefore the e' Allowable Value as listed in the letter is no longer valid. However, since the methodology has not changed this letter is to remain as an attachment in order to provide the methodology used in calculating the Allowable Value.

5 PSBP #316072, Rev. 2, (Selected pages).

As\PtX 7\1st 2M9. CAL k

l.'ar, 1

a l OE-AP.ZZ 0002(O)

ATTACwvEas i 2

l ATTACHMENT #1 S-C-4kV-JDC-959 IB 7.4.1.7-7 Page g ot g Issue 04 13 37

, INSTRUCTIONS, e

----------------...-----..._____________ Single phase Voltage Relays Type 27N

HIGH ACCURACY UNDERVOLTAGE RELAY Type 59N HIGH ACCURACY OVERVOLTAGE RELAY Type 27N Catalog Series 211T b Standard Case l Type 27N Catalog Series 411T Test Case Type 59N Catalog Serica 211U Standard Case Type 59N Catalog Series 411U Test Case i

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TABLE OF CONTENTS Introduction..................Page 2 precautions...................Page 2 !

Placing melay into service....Page 2 Application Data. ............pege 4 Testing.......................Page to i

INTRODUCTION These test instructions contain the information required to properly install. operate, and certain single-enase undervoltage relays type 27N. catalog series 2111 and 411T; and overvoltage relays, type 59N, catalog series 211U and 411U.

Tne connections All relay is housed to inthe a case relaysuitable are macefor conventional at semiflush panel mounting.

numbered. the rear of the case and are clearly 2117 Relays of the 411T. and 411U catalog series are similar to relays of the and 2110 series.

totally drawout construction; Both sortos provide however, the 4117 the same bastG tunct?ons and are of and integral test factitties. 4810 sectos relays provide Also, seguenced d1SCOnnects on the 410 series prevent "

nutsanceare contacts operation during used in the withdrawal or insertion of the relay if the normally.open application.

Basic settings are clastic cover. made on the front panel of the relay, bonind a removable clear Additional adjustment is provided by means of calibration potentto-metere inside the relay on the circuit board.

pushbutton extending through the relay cover. The target is reset by means of a PRECAUTIONS (A The following precautions should be taken when applying these relays:

1 Incorrect wiring may result in damage. Se sure wiring agrees uith the connection diagram for the particular relay before energizing.

2. Apply only the rated control voltage marked on the' relay front panel.

The proper polarity must be observed when the de control power connections are made.

3. For relays with dual-rated control voltage, withdraw the relay from the case and 1 j

check that the movable link on the printed circuit board is in the correct position for the system control voltage.

4 High voltage insulation tests are not recomunended. See the section on testing for additional information. i l

5. The entire circuit assembly of the relay is removable. l secothly. Do not use excessive force. The unit should insert i

6. Follow test instructions to verify that the relay is in proper working order.

CAUTIGN: aince troubleshooting entsiis working nith energigod eeuioment, care shouid be. taken to eveld personel shock.

safety practices should service these devices. Only coneetant technicione familiar with good PLACING THE RELAY INTO SERVICE '

1. RECEIVING, MANDLING, STORA4E Upon receipt of the relay (when not included as part of a swi tchboa;'d ) examine for O shipping damege.

notify Keep clean and dry.

If damage or Ioes te evident, file a claim at once and proostly Asea Brown Boveri. Use normal care in handling to avoid mechanical demoge. I l

1

We Sing 10-Pm:so voltage Doloro ATTACHMENT #1 IB 7.4.1.7-7

.................................................. S -C- 4 kV-J DC- 9 5 9 ..........'.'.". . 3

2. INSTALLATION Page [ of M

( ( mounting:

The outitne dimensions and onnel 15 37 det11tng and cutout information to given in Fig. 1 connecttone:

troical enternal conneettons are shown 'n Figure 2.

contact loste are shown in Figure 3.

colarity. Control Internal connectione and power must be connected in the proper r or relays with dual-rated contrul power:

its case and inspect that before enerstaine, withdrew the relay from the correct posttion for the system control voltage.the moveele itnk on the lower printed circu is in 1 11nk should be placed in the poestion marked 125vec.) (For untte rated stovac, the These relays have an external place for normal operetten. Theresistor resistorwired to terminale 1 and 3 whten must be in is supp1ted mounted on the relay. <

These relays have metal front canels which board runs and connector wiring to a terminal are connected through printed circutt C terminal is marked "G*. In all at the rear of the relay case. The aopitcations this teretnal should be wired to ground.

3. SETTINGS PICKUP The pickup voltage teos identify output contacts to transfer. the voltage level which the relay will cause the '

OROPOUT Theprovided are dropout for voltage70s.

teos are identified as a percentage of the pickus voltage. Teos pickup. 405, 30s, and set of pickup. or. 30s. 40s. 50s, and 60s of i Note:

can be operating obtained voltage by means values of another than the specific values provided by the tape internal testing for eetting procedure. adjustment potenttometer. See section on TIME DIAL The time dial taps are identified as 1.2.3.4.5.5. Refer to the time-voltage charac.

teristic curves in the Application section.

relays with an Instantaneous operating characteristic. Time dial selection is not provided on The time delay may also be '

varied mont. from that provided by the fixed tas by using the internal calibretton adjust-4 OPERATION IMOICATORS The types 27N and EgN provide a target indicator that to electronically actuated at.

the time the output contacts transfer to the trip condition. The target must be manually reeet.

The target can be reset only if control power to avs11able. ANO if the input voltage to the relay returns to the " normal" condition. i An to giveled operating indicator is provided for convenience in testing and calibrating the relay and personnet the operation of this indicator.information on the status of the relay. See Figure a for Unite with a "-L" suffix on the catalog number provide a green led to indicate the presence of control power and internal power supply voltage.

. I i

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it T 4.1.7-3 ATTAClutENT f t pago 4 Sing 10-Choso volt:g3 ca10y3 S-C.4kV.JDC-959

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .p,g,pg4fogjggr APPLICATION DATA s 'ag le-chase undervoltage releys and lg 37 eenge of protective functions. includingovervoltage the protection relays of are used to orovide a wide to initiate bus transfer. The type 27N undervoltage relay and type motors and generators. and eslay are designed for those aoolications where exceptional 534 overvoltage and long. term stan111ty are reoutred. accuracy. repostabtitty.

Tolerances accuracy of theandstekuo repeatability and dropout are given in the Ratings section. Remember that the I is generatty not a factor, tain as thesesettingsrelays are with,usually respect to the printed dial markings calibrated 1 the particular operettng values for the ecolication. in the field to ob.

ibretton, factor.

the accuracy of At the time of field cal- '

Nultiturn internal calibretton potentiometers providethe instruments used to set the relays l adj u s tment of the relay operating potnts, and allow the difference means for accurate and dropout to be set as low as 0.55 between pickup The relays are supplied with instantaneous operating time, delay characteristle.

The deftntte-ttmo untts are offered in two time delay ranges:

or with definite-time t.10 seconds, or 0.1 1 second. !

l An accurate peak detector is used in the types 27N and SDN. Harmonicpoint distortion in the 4C waveform measuring instrumenta can have used atonoticible set the effect relay. on the relay operating and on available as an option An internal hermonte filter is The harmonic filter attenuates all harmonics of the 50/40 Nr. input.for those bestcally operates on tne fundamental apol tcations where The relay then component of the input voltage signal. See figure the 5 for the suffix " NF"

. typical filter response curve. To specify the hermonte filter add to the catalog number.

I Note in the section on ratings that the addition vs. of the harmonic temperature vertation.filter does reduce somewhat the repeatability of the relay l

may be desirable to operate on In applications the peak voltage. where waveform distortion is a factor, it .

would not be used. In these cases. the harmonic filter J CHARACTERISTICS OF CCeee0N UNITS Type Time Delay

Catalog Numbers Pickup Range Oropout Ran Pickuo

...................................ge...............................................se Dropout ,

Std Case Test ca ;

27N 40 - 110 v 70s - get ...

Inst Inst 211701x5 411T01x5 Inst 1 . 10 sec 211741x5 411741x5 Inst

..................................................sec 70 - 120 v 70s - set 0.1 - 1 211781x5 411781x5 Inst Inst 211703x5 411703 5 Inst 1 - 10 sec 211T43x5 411743x5 Inst 0.1 -1 s

..................................................ec 60 110 v 30s . 405 211TS3x5 411783x5 Inst Inst 211702x5 411702x5 Inst 1 10 sec 211742x5 411742x5

$$N 100 150 v Inst 0.1 -

1 sec 211782x5 411TS2m5 705 - 995 Inst Inst 211001:5 411001:5 1 10 s Inst 211U41x5 411U415

...............................................e 0.1 2110415

. 1 Inst 411U61x5 EN90tTANT NOTES:

1. Each of the listed catalog numbers for the types 27N and $9N contains an *m* for the control voltage designation. To complete the catalog number, replace the "x" with the proper control voltage code digtt:

4s/125 vec ..... 7 250 vec ...... S 220 vec ..... 2 48/110 vec ...... O

\

2. To specify the addition of the harmonic filter module, add the suffix

NF". .

For enamole: 41174175.NF. Normente ft)ter not avat1stle on type 27N with instantaneous deley timing characteristic.

ATTACKhENT ft Singlo-encco voltog3 Datore S-C-4kV-JDC-959 rs 7.4.1.r-7 SetCtrICATIONS Page[of fg' ..........$.*!I.'

f7 37 Input Circuit: Rating: type 27N 950v maximum continuous, type SSN 160v maximum continuous.

Burden: less than 0.5 va at 120 vac.

Frecuency: 50/60 Hz.

Taca: availabte models include:

Type 27N: otekuo - 60. 70. 80. 90, 100, 110 volts. !

70 80. 90, 100 110 120 volts. !

dropout- 30 60. 70 80 90 99 percent of osckup. I 40, 50 60 percent of otekup.

Type SSN:

pickuo - 100 110 120 130 140 150 volts.

dropout- 60 70 80 90 99 percent of otckuo.

Operating Time:

See Time-voltage characteristic curves that follow.

Instantaneous models: 3 cycles or less.

h ,e Roset Time: 27N: less than 2 cycles:

(Type 27N resets when 59N: less than 3 cycles.

tnout voltate goes above etchuo setting.)

(Type 59N resets when input voltage foes below dropout setting.) '

Output Circuit: Each contact e 120 vac e 125 voc 30 amos. e 250 vec 30 amos. 30 mmos. tripping duty.

5 amos. 5 amos. 5 nace.

3 amos. I amo. continuous.

2 amos. 0.3 mmo. break. resistive.

0.3 amo. 0.1 amo. break, inductive.

Doerating Temperature Range: -30 to +70 deg. C.

Control Power: Models available for Allowable variation:

44/125 voc e 0.05 A man. 48 vde nominal 34- 58 vde 44/110 vde e 0.05 A man, 110 vec -

220 vec e 0.05 A man.44-125 vde '

125 vde ~

100-140 vdc 250 vdc e 0.05 A mar. 220 voc

178-246 vec 250 voc ~

200-250 vde Tolerances: (without harmonte filter option, after to minute warm-up)

Pickup and dropout settings with respect to printed dial merkings (factory calibration) = +/- 25.

Pickup and dropout settings, repeatatti tty at constant temperature and constant control voltage s +/- 0.15. (see note belowl pickuprange:

power and dropout settings, repeatability over " allowable

de control 4 +/- 0.12. (see note below) i Pickup and dropout settings. repeatabillity over temperatur9 range:

( ~20 to +55'c +/- 0.45 -20 to +70*C +/-0.tt i 0 to +40*C +/- 0.25 ( see note below'#

Note: the three tolerances shown should be considered independent and may be cumulative. Tolerances assume pure sine wave input signal.

Time Delay: Instantaneous models: 3 cycles or less.

Definite time models: +/- 10 percent or +/-20 milltsecs.

whichever is greater.

Harmonte Filter: All ratings are tne same escept:

toottonal)

Pichus and dropout settings. repeatabili$y over temperature range: !

0 to +55'c </. 0.758 -20 to +70eC +/-l.55

( +10 tc +40*C +/- 0.405 l \_

01 electric Strength: 2000 vac. 50/90 Mr. 80 seconds. all circuits to gneund.

f %me Setemic Capability: More than 69 ZPA Diantal broadband multifrecuency vibration without damage or malfunction. ( Ases! C37.90-19 78)

13 7.a.1.7 ?

Ps93 8 Steg10-Chr.00 VD1tC94 R310y3 ATTAtlutENT #1

, . . . . . . - - . . . . . . . . - - -- . . . . - - - . . - - - - - - - --- . . . -- - - . - . . . -- - -------- -- . --. 5-C-4kV.JDC-959 )

i

&MB ' MR -

18 37 O ?__._-,Ten

=ili2i- - -

dni-i '

s y *-l *-

L__T____! is IE _ 5:08 view s apoet viaw m y osa notts 4 > 41-1

- - tt cutout I

g t

Em _,

'P .

L3J '

{M en es osasenescas Ane $

stue ssunseems teaca veces Figure 1: Relay Outline and Panel Drilling i

O NM MM N

, n u.ur-52 M

Y ~

1 ON g gg u ,,

o.,

es +

= V sk g ..

o a.m.e.6 y ,, c.wfe.a.k f,.:

2

h M , , -

o ,,. _ ,, ,,.. , .. , _ ...

Singlo-Phro voltcge Colcre ATTACHMENT #1 S-C-4kV-JDC-959 18 7 d i 7-7

................................................ p,g q. Og Pcte 7 19 37 Figure 3:

INTERNAL CONNECTION DIAGRAM AMO OUTPUT COttTACT LOGIC The foilowing conditione of the table and diagram deftno the output contact states under eli posaible measured input voltage and the control power supply. *AS SHOWN" means the relay that the contacts being conetoered. are in the state shown on the internal

" TRANSFERRED

means the contacts areconnection in the diagram opposttefor state to that shown on the internal connection diagram.

Condition Contact State

........................................ Type........................

27N Type 59N Normal Control Power AC Input Voltage Selow Sr4 ting Transferred As Shown Norsesl Control power As Shown Transferred AC Input voltage Above Setting No Control voltage As

...........................................Snown as Shown

. . 169311M Std. er Tes t Case r j

8 1 os ol 4 3 of ;

1 c &1 '

T r-o oss 35 19 13 12 tt as 9 ....................-..- .

4 Off On Pickup Voltage Level On Off Off On Dr< spout Voltage Level input n Off Voltage input Voltage lacreasing Decreasing Off Start 5 tart Figure ke: IT[-27N Operation of Figure %b: IT[.$3m Operstloa of Dropout Indicating Light Pickup indlasting Light Figure 4: Operation of Pickup /Oropout Light-Emittint-Olode Indicator

I

\

(

13 7.4.1.7 1 ATTACIDIENT it i voltce) Coleyo S.C.6kV.JDC-959

. $$ N............................41nglo-Fh3c3 (

.. . . . . . . . . . . . . . . .. . .. . . . . . . . .... P a g e M o fg '

\ 20 37 l 1 l-The voltaas mennecteurtice i

\ insa vettaes cuanactamistice l - , , .

-i+=,,w,,,,'.===.-

.'"I

.. e ee

' se l . I

" e I I l*

I I

. I I E" t .,

\

, I en ' I e i ee.

". .e .. I.

., ,, ,,,, . .. ., e e as u .. .. u musemee m emessee ser,me e ,ne a 9, 4 w.. h.

e.6 .em .. .

eu,, es 9 y .8 M

. men. ameen,..

= a ergwsm.. m.m. c ..

e. .. .. .

.m i. ese s e .. .. .. ,

ame s.6, ese sm . . .

t .mu==.e

. mas emme -

Ls= = '== 1 * * ' * - - - I===-- ,,,,, sureuser .

I e

a tee Trpse' l

to

\ ;

l 1- l i

, l {

\

se \ l l

se se tse see see Peeeeeeer . werte Ffoure 5: Norme1igod Frequenty Response . CDttone1 HeregniC Fi1ter bleGW1e ;

sinolo-Ph co voltese malays ATTAC1 MENT #1 '

, S-C-4kV-JDC-959 In 7.a.i.f.7

.................................................. .........2I, g

Control 21 37 voltage selector s plug I

l

. ~ ,, ... ;

ci.

. ca

~I

\ m.,

~ .. , ...

ew

!!.'.,. :l . . l,ii ii, 0 3 '

g

.a

,, ,. 9hli'i i

, O Ptekuo

-,. g . - .. ,,,, voltage ,

g[ l .J' ! *t_ g Calibration '

Pot-

.I

,~

18 g

~~

8 J s ,, **

a d , MniEd}._.3.h.l 0*' l* 27N: CCW to Incr.

e yg - ..- . O L,,g I A*

sg [

.s, _. .A-59N: CW to Incr.

..c>U .

2. . .a. . Ot M i. * : .c .e, .- - ,

j,! , - c>

si

'. g jfl i 4,8.i .,~Il0t !:

- i -

y'-- :,

is 3, a.r r. ~ _ _ s. ..g? '

" i WI J 25 y A

?; C ,

at'=

C tii .i.i.i.i.w 'ji Fd???ddr' "!!j,, a 'i m:'

T aa iYnYnf'irin nyn i 3J*i--i ci i i r'd i"b 'i'i'n " '

m_ . . ' ' ,,

E Figure 8:

Typical Circuit toerd Layouts, types 27N and S9N t

'" -- ~

. T... - --

_ru e

W",i.>;*._} b.i n1* u E

p- --

1,1

= i;f _

' I*I C) <** l I

_E- ;I ip : g ** 3.I I ym ,..- I ..m. . .'

Ov >= ' ' > =' ' < - ' '-

ATTACEMENT #1 1s 7.4.t.7-7 Singlo-rhaco voltag3 polays S-C-4kV-JDC-959 Pageg ofg TESTIWG 22 37

1. MAINTENANCE AND RENEWAL PARTS wo routine maintenance is reout red on these relays.

verify Follow test instructions to inst the relay is to proper working order. we recompend that an inoper6tive relay be returnes to the factory for reDair: however, a ctrcuit concription booklet CDP.4.1.7-7 -nich incluces schematic diagrams, can parts will be cuoted by the factory on recuest.

be prov10ed on request. Renews) )

I 211 Series Units i

Drawout circuit boards of the same catalog numeer are interchangtble. A unit is identtfted by the catalog numoe r stamoed on the front panel and a serist number stamped on the bottom side of the drawout circut t board.

l The board is removed by using the metal pull knobs on the front panel. Aomoving the board wrth the unst tn service may cause an uncestred operation. l

)

An 18 ootnt entender board ( Cat 200X0014 ) is available for use in troubleshooting and calibration of the relay.

dit Series Units Metal handles provide leverage to withdraw the relay assembly from the case. Removing the unit in an application that uses a normally closed contact wt11 cause an operation.

panel The essemely is identified by the catalog number stamped on the front i and a sertal number stamped on the bottom of the circuit board.

i Test plug leads connections are readily made to the drawout relay unit by using standard benana at the rear vertical circutt board.

identification of the connection points. This rear board is marked for easier faportant: these relays have an external restator mounted on rear terminals t and g.

In order terminals to test 1 the drawout unit an soutvilent resister must be connected to

& 9 on the rear vertical l circutt board of the drewout unit. The resistance value must be ?.he same as the resistor used on the relay. A 28 or 50 watt resistor wi1* be sufficiant for testing. If no resistor is available, the resistor assemely mounted on the relay case could be removed and used. If the res is ter front the case is used, be sure to remount it on the case at the conclusion of testing.

Test Plug:

A test plug assembly, catalog numbe r 400x0002 to avatlable for use with the 410 sortes units. This device plugs into the relay case on the switchboard and allows access to all esternal for dotatle on the use of circutta wired to the case. See Instruction took IB 7.7.1.7-8 this devtce.

i I

2. HIGH POTENTIAL TESTS High potentist testa are not recommended. A ht-pot test was performed at the f actory before shipoing. If a control wiring insulation test is reoutred, partially withdrew the relay the test voltage.

unit from its case sufficient to break the rear connections before applying i

3. BUILT-IN TEST FUNCTION to sure to take all necessary precauttons if the testa are run with the main circutt energized.

The built-in test is provided as a convenient functional test of the relay and aesoc-1sted circuit. When you depress the button labelled TRIP. the measuring and timing circutta of t elay are actuated. when the relay times out, the output contacts transfer to tr the ctreutt breaker or other associated circuitry. and the target to Ciselayed. T test button must be held oown continuously until eseration to Cbtained.

1 singlo-Phsco voltage colays ATTAC}UiENT fI S-C-&kV-JDC-959 Is 7.4.t.7 7 4 AcespTAMes TasTS p,,,4y . . . . . . . . ' ' **. 2 fon ow 23 37 Dial 83. th. t..t proc.dur.e und., .ac. graph s. ror d.fintt..ti.e unit.,

e,iect T % 1 For the dropout voltage settype 27N. Check timing by dropping the voltage to gas of the For the type 39N check (or to aero timing volts tf preferred by switching the voltage fortosimplification of the testl excess man. input voltate rating.) 1055 of pickus (do not If the proceeuressettinee reoutres for theTolerances particular should be within application those shown on page S are known, use the .

in paragraan 3 to make the final adjustments.

5. CALIBRATION TESTS Test connectiona and Test Sourcea:

Typical test circuit connections are shown in Figure S.

proper Connect the relay to a settingsource of de control for dual-rated units). voltage to match its nameplate rating (and tions where high accuracy to reeutred. Genere11y the types 27N and SSN era used ininternal applica- clug harmonics. A test source with less than 0.35 harmonic distortion, such asThe ac te corrector" is recommended. a *1ine-transformer as the stabilizing and regulating device,Do not use a voltage source that e I hermonte content in their output.

as these usually have high {

used must also be considered when calibrating these relays.The accuracy of the voltag i

3 i

If the resolution arrangement usingof the two ac test variable source adjustment transformers shown in means is not adeeuate, the !

fine

adjustmente is recommended. Figure e to give *roarse* and '

i l9 thehen adjusting the ac test source do not onceed the maxim !

relay. um input voltage rating of l

/ LED Indicator! l A .

thelight emitting pickup and diode dropout isvoltages.

provided on the front panel for convenience in determining !

level and the direction of voltage change,The action of the indicator depende on the voltage Figure 4.

and is best explained by referring to - l i

The es11bration potentiometers mentioned in multi-turn type for excellent resolution and ease the following of setting.procedures are of the units, desired, the it point extender board provides easier access to the For cata)og series calibration pots.211 l If the completion of the calibration procedure.the calibration potentiometers can be ret Settine Pickue and Orr at valtamaa l Pickup may be varied between the potentiometer R2F. fixed tape by adjusting the pickup cattbration ;

on

low dropout unita"). Pickup should Set be set first, with the drocout tap set at 333 (GOs setting.

the voltage The calibration potentiometer has approutestely athe pickup e/-St tag range.to the nearest val Decreses adjust and repeat untti stekup occurs at procteely the desired voltage.unti Re-Potentiometer R1S te provided to adjust dropout.

lower tap to the desired value. Set the dropout top to the nemt lower the voltage untti dropout occurs.Incrosse the inout voltage to above pickve. and then 'l setting has been made. Readjust Ris and repeat untti the reeutred l 1

Settina Time helavt Similarly, the time delay may be adjusted higher or lower then the values shown on the time-voltate curves by means of the time delay calibration potentiometer #41 On the type 27N. time delay is initiated when the voltage drops from above the etchuo value to below the dropout value. On the type SSN, voltage the increases from below dropout to above the pickup value. timing Referring is inttisted to when Fig. Eme 8 relay to

timing out" when the lost indicator is lighted.

Entarnal Ramister valumat Series untts. Connect to The rearfollowing connection resietor values may be weed when teettne points i 4 p. 8' 8 Relays rated 40/125 vec: 5000 ohms; 44/110 vec: 4000 ohne; (-NF models with harmonic filter 4000 ohms 1 250 vde: 10000 shne? (-NF models with hermanic filter 3200 emmel 220 vec: 10000 ohns; (.MF madele eith hermenic f1lter 3000 ohnet

(~MF moesis with hermanic filter 3000 ohnei 1 l

ABB AstA enoww emini ATTAC10ENT #1 5-C-4kV-JDC-959 Page M of g ABS Power Trenanteston Inc.

24 37 Protective meter Divteton 35 N. Snowertft Rd.

Allentown. Ps. talog 215-395 7333 Issue O (2/89)

...................................................................Supersaces issue C

Z I- I DC Control Source To AC Test Source hy s.. Fis. s j 1 Timer START Input 08 O' 05 OS U2 Or gi Et IV E tY

"") : ' a r- 'AF GNO QiG OtS One Os3 ()82 ()es Q 0h3 0

"ll-To Timer STOP Input Fleure 8: Typical fest connections T1 T2 T3 variable Autotransformers ( t .5 ame rating) !

V Ftlement Transformer (1 emo secondary) :

Accurate AC Voltmeter i

> x lo-- :: 0Y sto vac Lina ' ~~"

Lint Me M ..<

ttovag

< ! l

? 4.3V (v)

CORatcTO, R g t gyg p e- _

f ==

,Z TI Tt T3 coansE Fint Figure 3: AC Test Source Arrentement

' These inatructione do not ourport to cover att detatis or var 1atione in oeutoment, nor to previes for every possinie contingency to be met in conjuneston atth installatton, ooerstion, or maintenance. should oorticular probleme artee waten are not coveres surftetentir for the purchecer's sovert.

purposes, the metter should be referred to Aeoa troen

ATTACllllEliT #2 S-C-4kV-JDC-959 Page of g 25 37 GENERAL he Occie Medal FT2 Power System Timer is 3 rugged. Dortsbie solid state electronic snstrument for measuring the alsosed time between two events that are marked by electrical signals. It measures intervals from 01 millisecond up to 999 seconds using five 3 digit decimal ranges and clifies Inc user at tne end of the interval. The FT2 is designed to coerate '

nifely anc retiaDly in the demanding environment of the power industry.

anc crevices accurate and recostabie measurements-without any enout ddlustments-*en Int prestrice el Wevele electrical noise. Continuous accuracy is assured by a cuartz crystal time standard.

The FT2 responds to a wide variety and range of electrical signais. Botn the START anc STOP terminals acceot signals from either dry contacts or switched ac or de potentials up to 250 Volta. Operating concitions are established Dy simple Sense $ witches which select the colarity of the trom to* transition that marks the starting and stopping events. A Range Switch selects the maximum measurement period. and automatically positions the decimal point and lights the correct units indicator. Should the interval exceed the selected ueirod. a Spit.L indicator is lignted and the disotay is blanked to avoid erroneous readings. !

SPECIFICATIONS Time 8ase t MHz. crystal controlled Rangen 0 to 99.9/999 ms. O to 9.99/99.91999 s Resolution 1986t significant digil Accuracy it loest significant digit Display 3 decimal digits. 0.43 in high Indicators SPILL. (EC. MSEC. STOP input signals optically isolated Dry Contact Sensing 8 VISO uA vollege *1-250 V dc or ao et 40-40K Mt Source Impedance 41KO Duration >12.8 me Temperatura 0 to 50'C operating. -20 to 70'C storage Humidity 0-90Wnoncondensing Power 105-125 or 210-250 V. 47-83 HL l e

$lra 9.75 in (24.8 cm) wide.

6.25 in (18.8 cm) deeo.

8.26 in (18.1 cm) high Weight 4.88 fts (2.2 kg)

Case molded ABS O - -

title

/5\

DECPADED VITAL :D NO BUS U!iDERVOLTAGE s.C-4kV-JDC-959 SHEET 2.6 '

SETP0lHT REFERENCE g3g, g

)

ORIGf t4 A T OR AU 2. kN 4 f!Otti or

~ 1 G

()

/N 1

C ALCULA TIOfg COfdTlf4UA TIOt1 SHEET DATE PEEf4 REVIEW 0 ATE 4/7/9 3

{-r _

~

6//#/93 57 e/rf'f)

///m/43 jfF y/a f 91 g

37

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_ ATTACllllEtiT # 3 DEGRADED VITAL BUS UNDERVOLTAGE SETPOINT PICTOGRAM FOR SALEM STATIONS UNIT I & 2 115.50 MINIM UM bus 115.40 RECOVERV VOLT ACE 111291 VAC (97.0%) 115.30 l 115.20 max tDOP ERROR RESET 111366 VAC (9(9 %) 115.10 MLA (o.s64) - 3:5644 VAC(9(r%XAV) 115.00

- TOTAL Loor ERROR k CJ19 (TI) 114.90 TLA (n 46) YI 11(725 YAC(CSF) 114.80

!!]Cf3 CAUBRATION 114.70 g --- - - - - - - - - - - - - - - - - - - - - - -> s s (60e VAC 114.60 A 114.50 CAUBRATION TO11RANCE 114.40 (o. soc) 114.30 114.20 l RESET sETrOINT l h 114.sooVAC(w.0%) 114.10 114.00

{ ) CAuBRADON TOLERANCE 113.90 (o.soo) 113.80 tow CAMBRADON --

y 113.70

- - - - - - - - - - - - - - - - - - - - - - k 113.600 VAC 113.60 tricll CAUBRADON --

--N - - - - - - - - - - - - - - - - - - - - -k 113.500 VAC 113.50 113.40 RELAY OPERATION ZONE 113.30 CAUBRATION TOLF.RANCE 113.20 (o.soo) 113.10

[ TRIP EriPOINT l 113.00 h 113.000 VAC(Pi1%)

112.90 112.80

- CAURRATION TOLERANCT 112.70 (o. soc) 112.60 1DW CAMBRATION -- --

- - - - - - - - - - - - - - - - - - - k ! !1.500 VA C 112.50 112.40 112.30 TOTAL InOP ERROR s12.292 VAC (Csr) 112.20 Tt.a cous) A { .3:,(Tr) 112.10 stw LOor rRROR TRIP y y (o.566) T siss?3 VAC (94 2%)(4Y) 112.00 111.934 V4C (941".) 111.90 1 111.80 si NI\fUsf A1.LOWABLE 111.70 113.726 VAC (910*4) bus VOLTACE 111.60 l ,,

111.50 AllNI%ll'N AlJDWABLE BUS VOI TACE (41.2) T1 = T F3 TING INACCURACV (411.4 6 4)

TRIP SETPOINT (41J) \fINIMUM BU5 RIWYERY VOLTACE (4 61)

TOTAL LOOP ERROR (ttt) RESET SETPOINT(4 63)

TRIP CEP = TRTP CAlft.'t.ATED SETPOINT (Lif) RESET CSP (4 Ed)

T RIP AV = TRIP ALIDWABt.E VAll'E (til) RESET AV (4 &()

D C . p r 7 7 v.M i ^ +

5EM 2S. sw 22+ su nuwsac:a .

3-23 .

14:34 PSE&G EAPB-2154224500:: l'

, , ATTACIDENT #4 S-C-4kV-JDC-959 Fage Mfg 27 37 a.o..c swva enctne ano Gas cercany P o som 236 sanecen,s .

socoe New Jone y ososa Nuclear Oma^T.e t ELE-92-0626 TO: R. W. Chranowski Technical Engineer FROM: J. D. Carey Salem IEC Supervisor h

[ ,

ID.M y

SUBJECT:

METHOD FOR CALCULATING ALLOWASLE VALtJE DATE: November 19, 1992 For the setpoint Allowable value calculation of concern no Technical Specification Allowable Values (Maximum Expected Calibfation Errors) exista.

as inputs to the safety analysis.are typically calculated only for setpointerused left To assist you in ex descr/as found values and setpoint calculation S-C-4KV JDC-0959 plaining as iption provided for the below: method of calculating allowable values is , a O value is based on the direction provided in ISA-sR6 Draft 10 of the Recommended Practice " Methodologies for the .

Determination Instrumentation". of Satpoints for Nuclear Safety-Related Calculations, DE-TS.ZZ-1001(Q)Our technical standard for Instrument setpoin incorporate this direction. is currently being revised to The recommended practice states that "The allowance between the allowable value and.the trip setpoint should contain that portion of the instrument channel being tested for the surveillance interval no more than:(monthly, quarterly, or refueling) and should account for drift (based on surveillance interval)

Instrument calibration uncertainties for the portion of the instrument channel tested and

... instrument uncertainties during normal operation that are measured during testing.

The method adopted is to first subtract the Total Loop Accuracy (TLA) fromLimit Analytical the Analytical limit (AL) to ensure margin between the and the setpeint.

and TLA is a fictitious number called the calculated setpointThe difference bet (CSP).

O then The instrument be addad allowable uncertainties as discueeed above should value.to the calculated setpoint (CSP) to determine the he Energy people

.. -u. a .,

3-:2-83 14 34 PSEE EAPB- 2154 :4500 :

ATTACHMENT #4 S-C-4k9-JDC-959 Page[28of37g R. W. Chranowski 11/19/92 AL - TLA = CSP AV = CSP +above)

Errors expected during testing (as noted For (PL)this case, which the limitVac.

is 110.418 not to be exceeded is a Process Limit (110.418-0.549 Vac) The TLA is 0.549 Vac. The PL - TM 0.02 Vac or (109.87 Vac-109.85 Vac).= 109.47The Vacerrors which leaves ex a positive mar testing should consist of 0.309 Vac as shown below.pected duringtt Therefore Maximum Expected Calibration set at 110.179 Vac or lower.

Errors (Allowable value) should be '

From Calculation S-C-4KV-JDC-0959:

Section 4.2.2 (Repeatability) = 0.1089 Vac Section 4.2.3 (Repeatability) = 0.1089 Vac Section 4 2.4 (TA) = 0.2678 Vac Testing Inaccuracy = ( (0.2 678) '2+(0.1089) ~2+(0.1089) *2)' *1/2

= 0.309 Vac i

O Note:

Conservatively, temperature was assumed to be relatively consistent between each calibration. 1 If you have please any questions call Sandy Jannettyoratcomments extensionconcerning 1802. this matter, SJJ:ngh Attachment C L. Rajkowski S. Jannetty.

M. Nortarulo O

5DT BY: 3-23-33 : 1 a.4.:35..... ... . tPSE&G E&PB- 2134224,300::

a,ua 4-vogo; 3'l

ITITLE i

' l REFERENCE :

DEGRADED UNDER- d

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CALCULATION l ORIGINATOR l DATE $

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Max. Loop Error Roset i

-*~ -

110.J99 Vac

. 110.179 Vac

i 1

Testing Inaccuracy (.309) 1 lg@ l Loop calculated setpoint l l l IRRoR (TLA) i

t (PL-TLA)= 109.87 Vac *- l 0.549 Vac (step 4.4.2) g Nigh Calibrated Roset '

109.85 vac i

Low calibrated Reset '

l 109.7 Vac Min. Allowed Rosat -

i 109.6 Vac f ' Miniaua

! DEAD 5AND O .

.'I :i (.5% of 109.05)

! Max. Calibration Tol. 109.05 Vac TECH. SPEC. SETPoINT , -

,108.9 Vac (91.6%

LCCP

' i ERRon I 0.438 Vac (Step 4.4.1)

Max Loop Error Trip E

, 10s.462 Vac i T.S. ALLOWABLE VALVE I

108.16 Vae (91.040

.l' ATTACHMENT #4 5-C-4kV-JDC-959 i

Page M f k {'

29 37 i

DE- AP . zz-0002 (g)

ATTACMMENT 8

j ATTAC10ENT #5 30 37 I

- - S-C-4kV-JDC-959 Page)( of fff I PSEGG REVIEW / APPROVAL FORM / OVERLAY Q

f 3/40*72 02 KOACTIVEAPCP -- APPROVED APPROVED, DOCUMENTATION D ERP2 PENDING CHANGE PACKAGE

- APPROVED, O CAN. - CANCELLED, PENDING EQUIVALENT REPLACEMENT NOT P" QUIRED 2a,MhAs2 OATE/4h5 9/

ENGINEER'S ' '

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OISCIPLINE M

SELECTION X, X X l ( '

SArtrY %YES 'MM S PURCHASE RELA E D NO ht SYS. [ ggDER g

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I COMPON syg COMPONENT 4' K TA V_. 8 #.5 O % "ENT *"" Pr' " '" " * " "'*'w*u *k Nw

$. 2Ec.- 3oW 0 SALEM i Q??,2,3 O SALEM COMMON 50: $ Qhfl'f fYl ,

O SALEM G HOPE CREE Q SALEM 2 B SALEM i G 2 '3 ARTIFICIAL i O SALEM 3 0 HOPE CREEK ISLAND VENDOR VH DOR 'D , i e

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COMMENTS *

i FC !NFbb5.iET50N ONLY ACTUAL YEN a.o0R ZB 7 </ t' 7- 7 ab 7.4./.*7-7

()t-AP.ZZ-4006 (G) Attechnent 1 REY. 3 i NOTICE i

O === = n><oRAnn e0NrA=o IN == == =Y am .=

SLAMITTED DGIVIDUALLY Ale TM LATEST REVISION MAY NO PLEASE LATEST REVISION. CONRAT TM DOCLDENT CONTROL SYSTEM DATABASE T

ATTACHMENT #5 S-C-4kV-JDC-959 AstA BROWN SOYED Pegegof fff Adds *ndum to IB 7.4.1./-?(D) 31 37 INSTRUCi1ONS Hi y .. ------ --.--- ------ -. - - - --. ------. .g h - Ac.---

c ur a....---

c y Un -- d er v o l t a q n R e l a y INranP tr.TinN Th s .s . addendum cava.ru models with the Defi ni t e-l.ong-Ft me dnl ay charactertstic.

These "5" directiv mcdel Following s are identified by catalog numbers that have the di rit t the letter "T" in the catalog number catalog numbcrs of the form 411T5xnx. 1.u.:

TIMING CHARACTERISTIC The overcall timing range of these relays in 2-20 seconds. The time-voltage characteristte is definite-tame as shown on page B of the main sel time-dial instruction ecti on as book. wi th the time-delav values versus followet Time Dial Tap Fin Pos2 tion Nominal Delay Time - Seconds

1 2 seconds

2 4

3 6 44 to

5 14

6 20 CATALOG NUMBERS and CHARACTERISTICS Type rime Delay Pickup Range Dropout Range Pickup Dropout Catalog No.

27N 60-110v 70-987. Inst 70-12Oy 2-20sec 411T5175 70--907. Inst 2-20sec 411T5375 Catalog numbers shown are for d. awuu t-teest-case model s, are preferred for new applications. which i

Uni ts in the standard-case, catalog strisa 211T5xxx would have the same electrical characturtstsen.

Rev 0 (9/91)

.l' i ASS Power AM wemen,T&OComesay o tese

. . _ manes.e

.....men.s. sue :

_ ATTACH 14bDEA/ Dug -/ s-c-suvMENT #5 soc-,s,-

32 res.pratji 3-

-W Power TAO Compari Q

ABB PowerT&D Company FAX :

Anan h t E*n,",le*'*

Phone: (215) 395.:

(215) 395.!

WIN Pi.:ns .4 255-15:

CA7E:_. MTA PaK: 8255-155

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CD 7,4,1,7 7 Issue A CIRCtrIT DESCUPTION HICH ACCURACY VOLTACE RELAYS 4

6 I

i ITE-27N UNDERVOLTACE RELAY ITE-59N OVERVOLTAGE RELAY u

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ATTACHMENT 65 S-C-4kV-JDC-959 Page,43'of,48 -

O CD 7.4.1.7-7 PACE 2 VOLTAGE RELAYS 34 37 INTRODUCTION The ITE-27N relsys and ITE-59N are companion high accuracy under and overvoltege respectively.

cluded in IB 7.4.1.7-7.Basic information on application and testing is in-the relay circuitry.

This publication describes only the operation of For the purpose of the following discussion PICKUP is defined as the high input voltage condition and DROPOUT as the low voltage condition.

For the ITE-27N Undervoltage Relay, PICKUF is the normal or reset condition and DROPOUT is the trip condition.

For the ITE-59N Overvoltage Relay, PICKUP is the trip condition and DROPOUT is the normal or reset condition.

POWER SUPPLY AND REFERENCE The relay's power supply is derived from the DC controi power input (ter-minals 7-8). RV2, b,1un coil BT1 and C13 provide transient protection.

O Voltage selector plug VSP sets the dropping resistors for either a 48 or 125VDC supply. Zoner diodes VR1, VR2 provide +/-15VDC voltages for the circuitry. Integrated circuit U4 provides a highty stable 10 volt re fer-ence for the voltage measuring circuit. '

l INPUT CIRCUIT Transformer T1 reduces the 120V nominal input signal by a 10:1 ratio. The gain of operational amplifier U1 is adjusted by the FICKUP tap selection

( R3 th ru R8 ) . The gain is set to give a 10 volt peak signal when the input voltage to the relay equals the pickup tap voltage selected. Calibration potentioaster R27 provides additional gain adjustment to allow the relay to be calibrated for any voltage between the fined tap settings.

FICKUF CIRCUIT U2 is an operational amplifier used open loop as a compariter. The 10V reference is applied through R10 to pin 3 of U2. When the peak AC stenal on pin 2 exceeds 10 volts (input voltage above pickup) a negative pulse is obtained on output pia 6. Resister R11 provides some positive feed-back to streteh the pulse. The negative signal is filtered by especiter C9 and applied to U3 pia 2. A negative input on U3-2 easses the U3 out-O put to go high. 1.ID tedicator Dg1 is off. Ftf Q1 is la the eseducting state. The selected dropout tap resistor (117-R20) causes the referosee voltage at pia 3 of 02 to be lower than 10V. Calibration resister att provides additional adjustment between tape. This is the dropoet vettage reference value.

ATTACHMENT #5 3f 37

. . . . S-C-hV-J DC-959 Page g of A8'"

VOLTACE FILAYS CD 7 4 1.7-7

. PACE 3 The dropout such condition that the peak is reached voltage at when the input viltage to the retay drop U2-6 then goes high, output U3-6 U2-2 goes below is the r eference voltage. Output low. LED D31 turns on.

off. re establishing erence value). 10 volts as the re ference at U2-3 (pickupF3T QL turns voltage ref- ,

TIMING CIRCUIT

'(Not Used on ITE-27N Instantaneous Models)

The goes UJ-6 output of timer IC 05, pin 3. is normally high. When the output pin to US pin 2.low (dropout condition), a trigger puise is applied through C19 Capacitor C20 is then allowed to charge through the selected time delay tap resistor (R63-R48).

threshold vlaue. U5 output pin 3 goes When low. theR41 volenge on C20 reaches a to provide for timing calibration. adjusts the threshold value When the input voltage to the relay returns above pickup, QS turns on, causing U5 to be immediately reset and its output to return high.

OUTPUT AND TARCET CIRCUIT!,

O For the output circuit relay to be energized, the signal through D6 from the pickup and the signal through D12 from the timer must be low. This allows 03 to turn on, then Q2 to turn en energizing the :oit of output relay Kl.

At the same time. Q4 is energized to discharge Cl.l through the target coil, thus changing the target status to orange. (On ese ITE-27N with instan-taneoustotiming, directly the timing the signal circuitry is not used to the output responds from U3-6.) >

ITE-59N The operation of the ITI-59N relay is almost identical' to that of the ITE-27N.

The difference being that op amp U3 La changed to a dual type, with the U3-8 section used to invert the logic, so that a high voltage condition causes the LED to light, the timer to run, and the outpu: circuit to operate.

KARMONIC FILTER For applicatiets where waveform distortion would lie significant, a harmonic filter may be added. This filter preserves the 30 or 60M: content of the input signal.

(It does not determine the RMS value of the signal.)

The filter is inserted between U1 and U2. (19 is reseved.) The gain of f- the filter is adjusted to 1.0 so that the basic e.ilibration of the relay

(

is retained.

__ATTACHMINT #5 36 37

- - . S-C-4kV-JDC-959 8"# I W VOLTACE R.1 LAYS CD 7.4.1.7 7

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FORM NC.DE AP.ZZ-0010-1 CERTIFICATION FOR DESIGN VERIFICATION Reference No. YC - ~ DD0 " W k

SUMMARY

STATEMENT TMG_ 6cc.?E op.7t.its BGshi stE124plC4k,J bi As to s2ENGQ C2Extisic w 4-CHAwQr:c, To f t.(E. /%NE QG FERCw(FD (A t.c ca hcAI. 7bE OL*S16ed

\lE2ic1(sued LAE it'0D USED WAG A DEssGM QGwEt0 c2;:~7HE. PAcWGE-1 p % W E:D %\b1CA'1EG"1VfC ~IV T 12G4t$rn) Ic.,ct212Gc:7 AMD S4~1tW4c"7ot?M O

The undersigned hereby certifies that the design verification for the subject document has been completed, the questions from the generic checklist have been reviewed and addressed as appropnate, and all comments have been adequately inc rPorated.

4c. Fe66aaese i

L. 3 E.C h s1G[ "#

-# h1% 93 Design Venfier Assigned By #

Signature df Demgn Verifier / Date Design Venfier Asmaned By Signature of Design Verifier / Date Design Venfier Asmgned By Signature of Design Verifier / Date Design Venfier Assigned By Signature of Design Verifier / Dase Page _ ,of _ -

~

Nuclear Common Page 2 of 4 1/1/92

FORM NC.DE-AP.ZZ 0010 2 I

( ! GENERIC VERIT CAT!ON CHECKLIST

<; <-4 42N '3 o c - 959 RITERENCEDOCUMENTNUMBER/REVhS /

YES NO N/A WHERE FOUND COMMENTS PAGE NO. (Y/N) !

[ h6 (a, 7 wERE DE51CW 14 PUTS CORRIC?u SELECTED AkD

{Iht:RPORATEDthTODES:N _ _ Ybb g l

2. ARE ASSUMPfl0NS NECEssART TO PERFORM THE DESIGN ACTIVITY ADEQUATELY DESCRIBED AND REASONASLE7 WNERE

/,,

NECE$sART. ARE THE ASSLMPTIONS IDENTIFIED FOR '

$UBSEQUENT RE-VERIFICATION WHEN THE DETAILED DESIGN ACTIVITIES ARE COMPLETED 7

3. ARE THE APPROPRIATE QUALITY AND QUALITY ASSURANCE REQUIREMENTS SPECIFIED?

[

4. ARE THE APPLICABLE CODES, STANDARDS AND REGULATORY REQwiREMENTS INCLUDiWG 155UE5 AND ADDENDA PROPERLY IDENTIFIED AND ARE THEIR REQUIREMENTS FOR DESIGN MET 7 _ _

[

5. MAVE APPLICABLE CONSTRUCT!DN AND OPERATING EXPERIENCE BEEN CONSIDERED? /

6. MAVE TWE DESIGN INTERFACE REQUIREMENTS BEEN Eltc4Wd

$AT!$FIED? CoAtt et. U ^.

_ "2 f C M -

7 WA5 AN APPROPRIATE des!GN METNCS USED7 / 0 6 4 P. 2-OCol[G

8. 13 THE OUTPUT REASONABLE COMPARED TO INPUTS 7 9 ARE THE SPECIFIED PARTS, EQUIPMENT, ul0 PROCESSES SUITABLE FOR THE REQUIRED APPLICATION 7

/

10. ARE THE SPECIFIED MATERIALS C W ATIBLE WITN EACM CTMER AND THE DESIGN ENVIRowENTAL COWITIONS TO VNICN /

THE MATERIAL WILL SE EXPOSED 7

11. MAVE ADEcuATE ItLINTEmett FEATLNtES AND REQUIREMENTS SEEN SPECIFIED?

[

12. ARE ACCES$1BILITY AS OTHER DESIGN P90VI$10NS ADEQUATE FOR PERFORMANCE OF IEEDED MAINTENANCE AND REPAIR 7 /

13. NAS ADEcuATE ACCES$181LITT BEEN PROVIDED TO PERFORM THE IN SERVICE INSPECTION EXPECTED TO BE REQUIRED DURING TWE PLANT LIFE 7 g

Nuclear Departamt Page 1 of 2 1/1/92

l i

1 l

FORM NC.DE AP.ZZ-0010-1 CERTIFICATION FOR DESIGN VERJFICATION REFERENCE DOCL MENT NO. REV $ C -4M V 'l O(_- 999, REV.4-i i COMMENTS RESOLUTION pages 9 4u were_ gages x/ded h YM 6tO CM orL I * %

gp y yl gyp (lt>

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of ths pay \2d A MO % -

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((Lkh-SMhffffED BY 7/n/a DATE Al'P w ,hrM3 AW~= of RESOLVED Bt DATE Resolution -

l Page _ of _

O Nuclear Common Page 4 of 4 1/1/92 k

i FORM NC.DE-AP.ZZ-0010-I Q CERTIFICATION FOR DESIGN VERIFICATION Reference No. S-C-4KV-JDC-0959. REV. 5

SUMMARY

STATEMENT A DESIGN VERIFICATION OF REVISION 5 TO THIS CALCULATION WAS PERFORMED IN ACCORDANCE WITH PROCEDURE NC.DE-AP.ZZ-0010. THE DESIGN VERIFICATION METHOD USED WAS AN DESIGN REVIEW OF THE PACKAGE. THE EXTENT AND DEPTH OF THE VERIFICATION INVOLVED A CHECK OF THE CHANGES ASSOCIATED WITH REVISION 5 OF THIS CALCULATION, AND THE DESIGN APPROACH USED. NO ENGINEERING JUDGEMENT WAS USED DURING THE VERIFICATION PROCESS WHICH REQUIRES INCLUSION IN THIS

SUMMARY

STATEMENT.

THIS DESIGN VERIFICATION HAS DETERMINED THAT THE CALCULATION IS CORRECT AND SATISFACTORY O

The undersigned hereby certifies that the design verification for the subject document has been completed, the questions from the generic checklist have been reviewed and addressed as appropriate, and all comments have been adequately incorporated, kJ. RAJKOWSKI V. FREGONESE // !

Design Verifier Assigned By $t'/re'of Design Verifier /Date Design Verifier Assigned By Signature of Design Verifier / Date l

Design Verifier Assigned By Signature of Design Verifier / Date Design Verifier Assigned By Signature of Design Verifier / Date )

O Page _of a t

Nuclear Common Page 2 of 4 I/I/92

ML20069F991

Contents

Text

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SUBJECT:

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Text

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Conclusion:

Conclusion:

Conclusion:

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SUBJECT:

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