ML20041E789
| ML20041E789 | |
| 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-4.14-1-C, NUDOCS 8203120307 | |
| Download: ML20041E789 (2) | |
Text
L A L;:s,s m w r-ANN 4.14-1-C Rev. 2
- ,,,,ge, c. c.
JAN 111982 OPERATION 5 REVIEW COMMITTEE APPROV P AN C
7, Connecticut Yankee Annunciator Response Procedure No. ANN 4.14-1 (L4 4.
~ APP RC// E b Y * ?
- T P*4 it[P E RIN T END f N T A
N EF FECTIVE DA 1.0 ALARM _ TITLE:
Bus 8 Level Two Trip
/
J1.1-1 Upper 2.0 MODULE NUMBER:_
least 2 out of 3 62C/1-8 agastat dropout actuated by at selected level two units.
Level two units set for 3.0 SE1 POINT:
3620 volts.
least 2 out of 3 level two units have Indicates that at 4.0 SIGNIFICANCE:_ failed or a low voltage exists. An undervoltage trip will 3620 volts occur if a safety injection signal is present.
buses.
is the lowest allowable voltage on the 4160 volt Operation at a lower voltage may degrade electrical equipment.
5.0 PROCEDURE
If there is no safety injection signal at this time, a Once this alarm fs 5.1 Icvel-two trip alarm will be initiated.
received, the operator should notify CONVEX to try and increase If the voltage can't be restored the 115KV switchyard voltage.
to hot standby.
within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, the operator must bring the plant If a safety injection signal occurs while the degraded voltan.-
the 86/1-8 lockout relay wilI 5.2 logic is producing an output,This relay will operate the 27Y, 27Yl, and 27Y.' r.
operate.
these which are also used in the level one undervoltage scherw.
relays will do the following:
27Yl/1-8 Trip llPS1 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 Page 1 of 2 8203120307 820304 PDR ADOCK 05000213 4
1 P
pg
l) a ANN 4.14-1-C Rev. 2 27Y/1-8 JAN 111982 Operate 4/EG2A (to start the diesel)
Initiate Load Shedding (through the 94LS relay)
Trip and Lockout 4841 1-8 Close 4TS Initiate Close of $2/EG2A Block Auto Start of Charging Pump P-18-1B Initiate Sequencing of Service Water Pump P-37-1B or P-37-1A.
When resetting these relays, it is important that the 86/1-8 bjt reset before 27Y-1-8, and'that 27Y-1-8,and safety injection 4A and 4B relays be reset prior to resetting 4/EG2A.
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