ML20196F724

Rev 2 to AP-510, Rapid Power Reduction

ML20196F724
Person / Time
Site:	Crystal River
Issue date:	11/23/1998
From:	Wilson I FLORIDA POWER CORP.
To:
Shared Package
ML20196F697	List: ML20196F693 ML20196F703 ML20196F716 ML20196F724
References
AP-510, NUDOCS 9812070114
Download: ML20196F724 (19)

Text

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RAPID POWER REDUCTION 1.0 ENTRY CONDITIONS lE conditions exist which require a rapid power reduction.

THEN use this procedure.

2.0 IMMEDIATE ACTIONS Note There are no imediate actions for this procedure.

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Approved by HNP b. _

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AP-510 PAGE 1 of 19 RPR

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3.0 FOLLOW-UP ACTIONS ACTIONS DETAILS I

3.1 Notify personnel of plant e STA _

conditions.  !

e Plant operators l

e NSM l e Dispatcher

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3. 2 . Adjust ICS " LOAD RATE"  !

to desired setpoint. i i

3.3 Adjust " UNIT LOAD MASTER" i demand to "10" '

3.4 ' Maintain Imbalance within e Adjust APSRs to maintain limits.

limits. i See OP-103D, Withdrawal Limit  !

Curves.  !

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3.5 Maintain MUT level e Cycle appropriate BWST to MVP valve ,

2 55 in. to raise MUT level:  :

MUV-73  ;

MUV-58 j ls i

3.6 Notify Chemistry of 2 15% t Rx power change in any }

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> time period.  !

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3.0 FOLLOW UP ACTIONS (CONT'D)

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\v ACTIONS DETAILS 3.7 E at any time, a rapid

• OP-204. Power Operations.

power reduction is Section 4.2 NOT required.

THEN stop power reduction

• OP-208. Plant Shutdown, and GO T0 the applicable Section 4.1 OP. .

• OP-203. Plant Startup.

Section 4.1 3.8 WHEN Rx power is < 80%.

• Notify SPO to ensure ASV-27 "MS to THEN ensure MS is AS Control" (119 ft TB by AS Hdr) is supplying AS. supplying Aux Steam header.

3.9 E at any time. FWV-28 is 1 Notify PP0 to obtain keys 11, 74 opened, and 75 from Control Room.

THEN ensure EFIC MFW

,o isolation is properly 2 Notify PPO to select EFIC MFW t

) aligned. isolation pump trip key switches to

BOTH" :

"EFIC CHANNEL A MAIN FW ISOLATION MAIN FW PUMP TRIP" (CRD Room. AUX RELAY CAB. RR3A)

"EFIC CHANNEL B MAIN FW ISOLATION MAIN FW PUMP TRIP" (B EFIC Room. AUX RELAY CAB RR5B1) 3.10 _ _ Maintain DFT level between 10 and 13 ft.

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Applicable Carry-over steps:

3.7 E rapid power reduction is NOT required. THEN stop power.

< 3.9 E FWV-28 is opened. THEN ensure EFIC MFW isolation. .

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AP-510 REV 02 (MC) PAGE 6 of 19 RPR

3.0 F0ll0W-UP ACTIONS (CONT'D)

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ACTIONS DETAILS 3.11 E at any time. ICS transfers to tracking mode.

THEN reset " UNIT LOAD MASTER" demand to "10" to resume power decrease.

3.12 E at any time. MBVs

• Select MBVs to " MAN" and "CLOSE" close.

THEN ensure MBVs remain FWV-30 closed.

FWV-29 3.13 Verify Aux Transformer is not supplying any bus.

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' E Aux Transformer is supplying any busses.

THEN PERFORM Enclosure 1.

Shutdown Electrical Lineup.

3.14 WHEN both OTSGs are on low 1 Select Rx Diamond to " MANUAL" level limits.

THEN align ICS for 2 Select " REACTOR DEMAND'" to shutdown conditions. " HAND" 3 Select "SG/RX DEMAND" to " HAND" and lower demand to "0" 4 Select both FW Loop Demands to

" HAND" and lower demand to "0" "STM GEN A FW DEMAND" "STM GEN B FW DEMAND"

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1 Applicable Carry-over steps:

3.7 E rapid power reduction is !iO.I requireci. THEN stop power.

3.9 E FWV-28 is opened. THEN ensure EFIC MFW isolation.

O 3.11 E ICS transfers to tracking mode. THEN reset " UNIT LOAD MASTER" l

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3.0 FOLLOW-UP ACTIONS (CONT'D)

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ACTIONS DETAILS 3.15 Maintain PZR level.

See OP-103A. Startup Curves. Curve 5 3.16 Begin RCS cooldown.

• CONCURRENTLY PERFORM E0P-14.

Enclosure 15. E0P Temperature Log (RCS TEMP).

e Begin sequential control rod group insertion.

• Maintain RCS cooldown rate s 50*F/8 hr.

3.17 Notify SP0 to CONCURRENTLY n

() PERFORM E0P-14. Enclosure

1. SP0 Post Trip Actions.

3.18 WHEN Rx Power is < 12%. 1 Establish manual turbine THEN trip Main Turbine. control.

2 Establish 50 MWe turbine load (45 to 55).

3 Ensure TBVs are controlling MS Hdr PRESS.

4 Depress Main Turbine trip push button.

5 Verify TVs and GVs are closed.

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Applicable Carry-over steps:

3.7 E rapid power reduction is NOT required. THEN stop power.

3.9 E FWV-28 is opened. THEN ensure EFIC MFW isolation.

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f 3.0 FOLLOW-UP ACTIONS (CONT'D) k ACTIONS DETAILS l 3.19 Ensure Main Generator  !

output Bkrs are open. Bkr 1661 -

Bkr 1662 l i

i IE any output Bkr fails to 1 Select affected output Bkr to I open. " BACKUP"- ,

THEN attempt to o)en  !

output Bkr using 3ackup "BKR 1661 TRIP COIL SELECT 0P, ,

trip coils. SWITCH" .l "BKR 1662 TRIP COIL SELECTOR i SWITCH"  ;

2 Open,affected output Bkrs:

Bkr 1661 i Bkr 1662 l l

3 IE output Bkrs are NOT open. l THEN notify Dispatcher to j O. separate CR-3 from grid. l P

I 3.20 _ IE CR-3 is separated from e Open field Bkr.  !

the grid, j THEN shutdown Main

• Select voltage regulator to i Generator. "0FF".

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AP-510 REV 02 (MC) PAGE 11 of 19 RPR 4

Applicable Carry-over steps:

3.7 E rapid power reduction is NOT required. THEN stop power.

3.9 E FWV-28 is opened. THEN ensure EFIC MFW isolation..

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3.0 FOLLOW-UP ACTIONS (CONT *D)

ACTIONS DETAILS 3.21 Ensure Main Turbine oil pumps are running. TBP-8 TBP-2 3.22 Ensure all Main Turbine drain valves are open. TDV-2 TDV-6 TDV-1 TDV-5 TDV-3 TDV-7 TDV-4 TDV-9 TDV-10 TDV-8 3.23 J.E this procedure was entered from E0P-6. Steam Generator Tube Rupture.

THEN EXIT this procedure.

O AP-510 mbV02(MC) l PAGE 13 of 19 RPR s

Applicable Carry-over steps: l 3.7 E rapid power reduction is NOT required. THEN stop power. .

3.9 E FWV-28 is opened. THEN ensure EFIC MFW isolation.

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AP-510 REV 02 (MC) PAGE 14 of 19 RPR

..- . j c3.0 FOLLOW-UP ACTIONS (CONT'D) i f ACTIONS ~ DETAILS 3.24 Align CD System for low 1 Select both CDP-1A~and CDP-1B j flow operation. controllers to " HAND" and reduce '!

' demand to "0". l i

-2 Ensure only 1 CDP is running.  ;

3 Close CD Htr outlet' valves:  !

CDV-44 l

CDV-43 l

-4 Maintain CD system PRESS between 90 and 150 psig, -l j

5 Throttle CDV-242 to maintain DFT  !

level between 8 and 11 ft; i i

RQte j The following step will add a 125 psig bias to the TBVs.  !

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i 3.25 WHEN Rx power lowers to l 5%.

THEN trip Rx and GO TO l E0P-2 Vital System Status l' Verification beginning with step 2,l' t

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5.0 ENCLOSURE 1 SHUTDOWN ELECTRICAL LINEUP- l I

A ACTIONS DETAILS

-U l.1' E Bkr 3101 is closed. 1 Select " AUTO TRANSFER 3103" to l THEN transfer the A 6900V " MAN".

bus to START UP transformer. 2 Close Bkr 3103  !

3 Open Bkr 3101 . j l

1.2 E Bkr 3201 is closed. 1 Select " AUTO TRANSFER 3203" to

. THEN transfer the A unit " MAN". -

'4160V bus to START UP transformer. 2 Close Bkr 3203 l

3 Open Bkr 3201 i b

. 1.3 - E Bkr 3207 is closed, 1 Select " SYNC 3211" to "0N" -

AND the OFFSITE g transformer is the desired 2 Close Bkr 3211 ]

source. . .

t THEN transfer the A ES 3 Open Bkr 3207 i 4160V to Bus to the  ;

0FFSITE transformer. 4 Select " SYNC 3211" to "0FF" E Bkr 3207 is closed., Select " SYNC 3205" to "0N".

' 1.4 1 AND the BEST is the desired source, 2 Close Bkr 3205 THEN transfer the A ES ,

4160V Bus to the BEST. 3 Open Bkr 3207 4 Select " SYNC 3205" to "0FF" t 5 t

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5.0 ENCLOSURE 1 SHUTDOWN ELECTRICAL LINEUP (CONT'D)  !

TN - ACTIONS DETAILS V  :

1.5 E Bkr 3102 is closed. 1 Select " AUTO TRANSFER 3104" to i THEN transfer the B 6900V

• MAN".  !

bus to START UP

' transformer. 2 Close Bkr 3104 '

i 3 Open Bkr 3102 l

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- 1.6 E Bkr 3202 is closed. 1 Select " AUTO TRANSFER 3204" to THEN transfer the B unit " MAN" 1 4160V bus to the START UP  !

transformer. 2 Close Bkr 3204 '

3 Open Bkr 3202 i i

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1.7 E Bkr 3208 is closed. 1 Select " SYNC 3206" to "0N" i AND the BEST is the- ,

s desired source. 2 Close Bkr 3206  ;

IHEN transfer the B ES  !

4160V Bus to the_BEST. 3 Open Bkr 3208 1.8 E Bkr 3208 is closed. 1 Select " SYNC 3212" to "0N".  !

AND the OFFSITE-transformer is the desired 2 Close Bkr 3212  :

source, j THEN transfer the B ES 3 Open Bkr 3208 i 4160V to Bus to the f 0FFSITE transformer. 4 Select " SYNC 3212" to "0FF" ,

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