ML20095E873

Suppl BVPS Unit 2 Rept of Facility Changes,Tests & Experiments Nov 1993 - Oct 1994

ML20095E873
Person / Time
Site:	Beaver Valley
Issue date:	10/31/1994
From:	DUQUESNE LIGHT CO.
To:
Shared Package
ML20095E867	List: ML20095E862 ML20095E873
References
NUDOCS 9512180192
Download: ML20095E873 (6)

Text

.

. Beaver Valley Power Station Unit 2

- Report of Facility Changes, Tests, and Experiments November 1,1993 - October 31,1994 Table of Contents Temporary Leak Repair of Valve 2"-RCS-633 ........................... ................................. 1 Temporary Installation of Regulating Valve Downstream of Turbine Auto-Stop Oil ReliefValve...................................................................................................................2 Temporary Leak Repair of 3/4" Bonnet Relief Valve for Turbine Bypass isolation Valve..............................................................................................................................3 Temporary Modification to Correct Position Indication for Pressurizer Power O pe rat ed Reli ef Val ve . . . . . . . .. . .... . .. .. ... . . ... . ... . .. .. . . .. ... . . .. . . . . . .. ... . . . . . . ... .. . ... .... . . ... . . . . . . . .. . . . . . . .. . 4 Temporary Condensate Drain Trap for Auxiliary Building Air Conditioning Unit... 5 1

1 l

9512180192 951211 i PDR ADOCK 05000412 R PDR

_ _ _ . _ _ _ _ _ _ _ _ . . _ _ . . . . _ _ ~ _ _ _ _ . _.. .. _ ._.. _. .. . __ ._. __

i Beaver Vallsy' Pow r Station Unit 2 <

. Report of Facility Changes, Tests, and Experiments

. November 1,1993 - October 31,1994 i Page 1 of 5 ,

i CHAtlGE TITLE Temporary Leak Repair of Valve 2-RCS-633 I

DESCRIPTION OF CHANGE Valve 2"-RCS-633 is a normally open isolation valve in the reactor coolant loop "A" cold leg to hot leg bypass line. A cap was installed on the valve and sealant was injected to stop a valve stem leak, until permanent repairs could be made. The valve ,

will remain in the open position. -

l i

l 1

l We-* w-_t ,m.- ***+m- -

M

B::vtr Vallsy Pow:r Stttion Unit 2 Report of Facility Changes, Tests, and Experiments

. November 1,1993 - October 31,1994 Page 2 of 5 CHANGE TITLE ,

Temporary Installation of Regulating Valve Downstream of Turoine Auto-Stop Oil Relief Valve DESCRIPTION' OF CHANGE A 1/2 inch regulating valve was installed to throttle flow should auto-stop oil relief valve 2TML-RV205 actuate below its intended setpoint. The relief valve had acted erratically during turbine start-up.

. l l

Barver Vellay Pow:r Striion Unit 2

. Report of Facility Changes, Tests, and Experiments

. November 1,1993 - October 31,1994 '

Page 3 of 5 CHANGE TITLE Temporary Leak Repair of 3/4" Bonnet Relief Valve for Turbine Bypass isolation Valve DESCRIPTION OF CHANGE l

Thermal relief valve 2 MSS-RV101 provides overpressure protection for an isolation valve in the turbine steam bypass line to the condenser. The relief valve was sealed closed to stop a steam leak through the valve. Valve bonnet overpressure protection was determined to be unnecessary.

l l I J

r l

)

i f.

(

Bstver Valley Powar Station Unit 2

. Report of Facility Changes, Tests, and Experiments

. November 1,1993 - October 31,1994 Page 4 of 5 CHANGE TITLE .

Temporary Modification to Correct Position Indication for Pressurizer Power Operated Relief Valve DESCRIPTION OF CHANGE in order to correct a benchboard position indication problem for pressurizer power operated relief valve 2RCS*PCV455D, the limit switch that normally supplies input to the plant computer was rewired to control the benchboard indication. This temporarily disabled valve position input to the plant computer.

B::vur Vill:y Power St tion Unit 2 Report of Facility Changes, Tests, and Experiments

- November 1,1993 - October 31,1994 Page 5 of 5 CHANGE TITLE Temporary Condensate Drain Trap for Auxiliary Building Air Conditioning Unit CHANGE DESCRIPTION Temporary condensate drain lines were installed for the Primary Auxiliary Building air conditioning unit in order to provide a workable drain pipe trap configuration. The previous drain trap was not functioning properly.

i

..