ML20087B285

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Rev 19 to Station Procedure OP 2323A, Turbine
ML20087B285
Person / Time
Site: Millstone Dominion icon.png
Issue date: 05/23/1995
From: Ferguson B
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20087B268 List:
References
NUDOCS 9508070389
Download: ML20087B285 (5)
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STATION PROCEDURE COVER SHEET

1. IDENTIFICATION Number: OP 2323A Rev. _12

Title:

TURBINE Prepared By: B. Ferguson

2. REVIEW l have reviewed the above procedure and have found it to be satisfactory.

TITLE p SIGNATURE /EATE TITLE SIGNATURE /DATE DEPARTMENT HEAD V( / PWG M fM SYSTEM ENG y'u/f/414I IND REVIEW / /

3. SPECIFIC UNREVIEWED SAFETY OUESTION EVALUATION REQUIRED:

Modifies intent of procedure and changes operation of systems as described in design documents. YES [ ] N h]

(if yes, perform written USO determination and Safety l Evaluation, and contact Manager, Safety Analysis Branch to l determine need for Integrated Safety Evaluation.)

ENVIRONMENTAL REVIEW REQUIRED (Adverse environmentalimpact) YES [ ] NO ]

4. SPECIFIC SAFETY EVALUATION REQUIRED Affects response of safety systems, performance of systems I which may have been credited in the safety analysis or non-credited systems which may indirectly affect safety system response. YES [ ] N (if yes, coordinate Safety Evaluations and contact Manager, Safety Analysis Branch to determine need for Integrated Safety Evaluation.)
5. INTEGRATED SAFETY EVALUATION REQUIRED YES [ ] NOk
6. BIENNIAL REVIEW This revision satisfies biennial review requirements. YES [ ] NO
7. PROCEDURE REQUIRES PORC/SORC REVIEW (In addition to review, items with a YES response must be documented in the PORC/SORC meeting minutes.) YES NO[]
8. PORC/SORC APPROVAL PORC/SORG Meeting Number 2 / 7 '
9. APPROVAL ANDIMPLEMENT TION The attgched pr cecjure is hereby approved, and effective on the date belpw:

7 7) L & S/26/ff Sr.,VfCE PRESIDENT /p! RECTOR - UNIT / SERVICES EFFECTIVE DATE SF301/14/s/DBM/93-53/1of1 D Koo 6 hhR P

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. OP 2323A Page1 Rev.19 UNIT 2 TURBINE Page No. Eff. Rev.

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,:' OP 2323A Page 2 Rev.19 TABIR OF CONTENTS PROCEDURE SECTION SECTION TITIE PAGE NO.

5.1 Preparing for Turbine Startup . . .. . . . . . . . . . . . . . . . . . . . 7 5.2 Placing Wrbine Lube Oil System in Service and Placing Wrbine on Turning Gear . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.3 Low Pressure Warming . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.4 Turbine Shell Warming . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.5 %rbine Chest Warming . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.6 Turbine Startup to 1,800 rpm . . . . . . . . . . . . . . . . . . . . . 15 5.7 Load Set Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.8 Turbine Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.9 Erning Gear Operation . . . . . . . . . . . . . . . . . . . . . . . . . 22

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, OP 2323A Page 20 Rev.19 5.8 Turbine Shutdown p.-.-.-.-.-.-.-.-.-.-.-.5 e CAUTION e Turbine shutdown must be accomplished as expeditiously as possible to 1 avoid unnecessary cooling of low pressure turbine rotor wheels while 8 o 8 L. perating at low steam flows..-.-.-.-.-.-.-.-.-.-.J 5.8.1 Refer To Section 5.9 and VERIFY turning gear aligned for automatic operation.

5.8.2 E the turbine will not be restarted within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, PERFORM the l

following:

5.8.2.1 Prior to turbine trip, VERIFY 3 out of 4 RPS linear drawer level I bistables are reset.

5.8.2.2 To prevent FRV bypass valve motion, PRESS and HOLD both FRV downcomer reset and ramp stop buttons.

5.8.2.3 PRESS red " TRIP" button.

5.S.2.4 OPEN 2-FV-1 as necessary to raise running EHC pump amps to between 45 and 55 amps. (unloaded amps are l between 35 and 40 amps) l 5.8.3 E the turbine will be restarted within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, PRESS " SPEED SET .

RPM, CLOSE VALVES" button and OBSERVE light lit.

5.8.4 SET turbine bearing oil temperature controller, TIC-7209, to 85*E 5.8.5 Refer To OP 2324C," Generator Hydrogen System and Carbon Dioxide Purge" and SHIFT hydrogen purity analyzer to standstill operation.

p.-.-.-. . . . . .

.-.-.5 e CAUTION e Following turbine shutdown, bearing oil flow must be maintained e for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> after shutdown re e L . - . - . - . . gardless of turning gear .-.-. operation.. .-..J 5.8.6 WHEN turbine rotor stops, PERFORM the following:

5.8.6.1 Refer To Section 5.9 and VERIFY proper turning gear engagement.

5.8.6.2 STOP " MOTOR SUCT PP, P-61" and PLACE switch in

" PULL TO LOCK" (C-07).

5.8.6.3 START "TURB BRG LIFT PP" "A'" (C-07).

e OP 2323A Page 21 Rev.19 5.8.7 IE turbine overhaul is to be performed while shutdown, Refer To SP26511," Emergency Bearing Oil Pump Surveillances," and PERFORM test.

5.8.8 When a minimum of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> on the turning gear have elapsed and it is desired to secure the turbine lube oil system, PERFORM the following:

5.8.8.1 PLACE " TURN GEAR MTR, L-40" switch in " PULL TO LOCK"(C-07).

5.8.8.2 PLACE all bearing lift pump switches in " PULL TO LOCK" (C-07).

5.8.8.3 OPEN and RACK OUT emergency bearing oil pump breaker, D0305.

5.8.8.4 VERIFY " MOTOR SUCT PP, P-61" switch in " PULL TO LOCK"(C-07).

5.8.8.5 PLACE " TURN GEAR OIL PP, P-62" switch in " PULL TO LOCK" (C-07).  ;

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