ML20041E791
| ML20041E791 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 01/11/1982 |
| From: | CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | |
| Shared Package | |
| ML20041E788 | List: |
| References | |
| ANN-4.14-28-C, NUDOCS 8203120316 | |
| Download: ML20041E791 (2) | |
Text
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' p-i cav, a-ci ANN 4.14-28-C Original JAN 111982 PLA ANN 4.14-28 T OPERATIONS REVIEW COMMITTEE APPROVAL Annunciator Response Procedure No. ANN 4.14-28 arsCh>
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[u ".RIN T EN D E N T EFFECTIVE oATE f
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1.0 ALARM TITLE:
Bus 8 Level Three Trip.
2.0 MODULE NUMBER:
J1.1-1 Lower.
3.0 SETPOINT
62B/1-8 agastat dropout actuated by at least two out of three selected level three units.
The level three units are set for 3940 volts.
4.0 SIGNIFICANCE
Indicates that at 3 cast two out of three level three units have failed or a low voltage exists.
I Anundervoltagetripwilloccurifasafety injection signal occurs following the low voltage actuation.
5.0 PRCCEDURE
5.1 If there is no safety injection at trip clarm will be initiated.
this time, a level three l
the operator should notify CONVEX to try and increase theOnce this alarm is rec 115KV switchyard voltage.
within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, If the voltage can't be restored 1
_ Standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.the operator must bring the plant to Hot 5.2 logic is producing an output,If a safety injection signal occurs while the de
?..
the 86/1-8 lockout relay will y
operate.
This relay will operate che 27Y, 27Y1, and 27Y2 y
relays.
These relays will do the following-
?c
_27Y/1-8 P
Y Operate 4/EG2A (to start the diesel)
Initiate Load Shedding (via 94LS relay) 1-8 4
Trip and Lockout 4841
[,
Closc 4T5 L l Initiate Close of 52/EG2A Block Auto Start of Charging Pump P-18-1B y
Initiate Sequencing of Service Water Pu:np P-37-1B or P-37-1A 8203120316 820304 PDR ADOCK 05000213 Page 1 of 2 p
ANN 4.14-28-C Original 27Yl/1-8 JAN 111982 Trip HPSI Pump P-15-1B Trip LPSI Pump P92B Trip Charging Pump P-18-1B 27Y2/1-8 Trip and Lockout 2T8 Trip and Lockout 8T2 When resetting these relays, it is important that the 86/1-8 b_e reset before 27Y-1-8, and that 27Y-1-9 and safety injection 4A and 4B relays be reset prior to resetting 4/EG2A.
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