ML19210E326

Operating Procedure 507.2,Revision 3, Turbine Bldg Closed Cooling Water Sys Failure.

ML19210E326
Person / Time
Site:	Oyster Creek
Issue date:	06/13/1979
From:	JERSEY CENTRAL POWER & LIGHT CO.
To:
Shared Package
ML19210E318	List: ML19210E317 ML19210E321 ML19210E324 ML19210E326
References
TASK-09-03, TASK-9-3, TASK-RR 507.2, NUDOCS 7912040336
Download: ML19210E326 (4)

Text

t Procedure No.

Jersey Central '

507.2 Page 1 or 4 ate issued EHective Date

. Power & Light Company 8/20/76 6/18/79-6/2s/79 Revision No. Date Suoject: Tnrhim m41r14rg mg q 3 6/13/79 Water Systan Failuro Authorized By Stai-4m Sumerinterrismt Approv Concu,ys Oyster Creek Generatire Statica ,

v LIST OE' t.ern;nVE PAGES DA'IE REVISION NUMBER 1 ..

6/13/79....- . . .. . . . 3 . .. . . . . . .

2 5/10/79 2 3 6/13/79 - 3 -

4 6/13/i9 3

• • Ihis s. Wiir u rrelam Section 507.2 of the old 507 r *-iin per 507 Rev. 2.

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Subject:

Procedure No.

Turbine Dnilrling Closed Cooling 507.2 Page 2 of 4 Pages f Water System Failure Revision No.

2 Date 5/10/79

1.0 Purpose

To provide a procedure for opezator action should the Turbine Btilding Closed Cboling Water Systs (TBCCWS) fail due to pump failure or pipe break.

2.0 Indications to the Operator: _

2.1 Failure of 7ECCWS may be indicated by one or nore of the following ala- r Indications:

2.1.1 Panel 7F - Annunciator "Q".

2.1.1.1 GBCC Water Pump 1-1 Trip 2.1.1.2 180C Water Pump 1-2 Trip 2.1.1.3 2BCC Water Pump 1-3 Trip 2.1.1.4 TBCC Water Disch. Im Press.

2.1.1.5 TBOC Water Pump Auto Start C 2.2 Other abrms a-f ated with equipuent cooled by 1BCCW may be receivr1.

3.0 Autcuatic Actions:

3.1.The standby TBCCW purp will start upcn a Im discharge har%r pressure. .

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4.0 Irrmvlinte Ooerator 7cticn: -

4.1 If cne TBCCW purrp fatis, verify that the starr!by 1BTW purrp starts.

4.2 If tm TJCCN purrps fail, at.br to mamally restart tse pumps. ~

4.2.1 If only one TBCCW purrp is available and TBOCN -- W ature is rising, reduce the reacter recirculation fim to minimum using the recircu-lation fim master controller.

Note: (1) If'a rMvwl TBZW flow is awrf anced through the stator cooling heat exchangers, the tine differential betwen the reduced ficw and I .

receipt of the stator cooling high beature alarm is dependent cn .

generator 1rvv1 and 'mrTW heat exchanger capacity. -

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Subject:

Procedure No.

Page , of Pages Turbine Biilding Close:1 Ccolirq _

507.2 ,

, Water Systen Failure Revision No. Date 3 6/13/79 (2) If stator cooling high te;.-ture is alarmed, the generator runback feature will ram generator load to about 20% of rated autmatically within 3 minutes and the bypass valves will open autmatically.

(3) Nhen turbine load is rdM to a point below the Icw load trip, reset the 25% load trip (green button) ha_ hind Panel 13R. . , ,

4.2.2 Dispatch an operator to itdjust the TK:CN supply to the etrhim lube oil coolers to reduce the turbine hanring oil *Prature.

4.2.3 If the H'rhim Wring high te hature alam is initiated, chedt the turbine haaring thm > -ple recorder on Panel llR. If errhine bearing tercerature is > 185'F, raAm htrhine load manually to decrease bearing tu.gatures.

f 4.3 If all TBOCN pu=ps fail or a major pipe break occurs and no TBOCW pumps can be restarted and the break cannot be isolated:

4.3.1 Trip the etrhine. Manual'.y scram the reacten: if less than 45%

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.. -. . 7, 4.3.2 Trip all recirculation pumps. Insure the suction and dieharge valves remain open until the ptrap start rw2are is impisnented.

4.3.3 Initiate transfer of air -gessor cooling to the Fire Water Systs. Isolate the 'lBCCW supply and return to the air meessors.

TT1 -t Prrvw'ivre 503 if a loss of air should occur.

4.3.4 Ftnitcr feedwater pump and condensate operation since pumps are utili ing TBCcf for cooling. . -

4.3.5 _

If feskater pumps h incperable at reactor pressure greater than 250 psig, isolate the reacter or 1 lace the isolaticn condmsers

' in service to maintain cooldcwn.

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Subject:

Procedure No.

507.2 Page 4

of , Pam Turbine nnilairs Closed Cooling Water System Failure Revision No. Date

g. 3 C/13/79 i

4.4 If a small 'IBCCW systan pipe break occurs such that the level in the TB00f surge tank can be maintained, locate and isolate the leak.

5.0 Subsmuent operator Acticn:

5.1 fenitor equipTent cooled by the TBcrW Systan for excessive tmperatures.

5.2 In the event only one TIC 07 purp is in service, adjust TBOCW flew to prevmt

.. Pump rtrait. . , , , , .. .

5.3 If reactor scram was required, refe'r to energency g. san e 532, "Autcmatic or Manual Reactor Scram", or g -are 514, " Reactor Isolaticn Scram" as afgu.vplate.

5.4 If nere than cne recirculatica pump is tripped, place the reactor in the cold shutdown conditicn within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

5.5 lbtify Supervisar - Staticn operaticns.

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References:

G.1 Reportable Occurrence 79--14.

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