ML20059P004

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Summary of 900905 Meeting W/Util in Rockville,Md Re Plans for Upgrading Onsite Emergency Power Capabilities
ML20059P004
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 10/12/1990
From: Samworth R
Office of Nuclear Reactor Regulation
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 9010240342
Download: ML20059P004 (23)


Text

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/ October 12, 1990 -

Docket Nos. 50-266- DISTRIBUTION and 50-301 eacket, Filet 6 NRC & Local PDRs FMiraglia JPartlow -

LICENSEE:' Wisconsin Public Service Corporation DCrutchfield JHannon .

OGC-WF1 EJordan FACILITY:. Point Beach Nuclear Power Plant ACRS(10) BSamworth JZwolinski PDIII-3 r/f SUBJECTi PLANS FOR UPGRADING ONSITE EMERGEN",Y POWER CAPABILITIES AT POINT BEACH

-On September 5, 1990, NRR_ staff met with Wisconsin Electric Power Company.

staff at NRC headquarters in Rockville. The purpose of the meeting was for WEPCo to inform NRC of plans for upgrading onsite emergency power capabilities at the Point Beach Nuclear Plant. A list of meeting attendees is attached.

WEPCo advised NRC that they have contracted for purchase of two additional diesel generators similar in manufacture and capacity to the two emergency diesel generators installed at Point Beach. The diesels will be shared by the two Point Beach nuclear units.

The additional diesels'and associated electrical systems perform a safety-related function and will be classified as IE. WEPCo will advise NRC more specifically of the standards to which the uagrade will be designed. WEPCo will also inform.

HRC of the testing program whici will be proposed to demonstrate operability of the new diesel generators.

. Emergency electrical loads have been tabulated using nameplate ratings of emergency equipment (e.g., motors on pumps and valves). The licensee will retabulate emergency loads using measured electrical demands of this equipment.

.The licensee also reported the intended installation of an additional station

battery.

Copies of the viewgraphs used in the licensee's presentation are attached.

- odginalsigned by Robert B. Samworth, Project Manager Project Directorate III-3 .

Division of Reactor Projects - III, IV, Y and Special Projects-Office of Nuclear Reactor Regulation Attachments:

"As' stated fcc: See next page DOCUMENT NAME: PB MEETING SUMMA Y 0ffice: LA/PDIII-3 TM/PDIII-3 PD) III-3 Surname: P3rehzer BSamworth/tg JHannon Date: - p / e, /90 /p/ g /90 p/p/90

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r ;, ' Mr. C. W. Fay ~ Point Beach Nuclear Plant i

. Wisconsin Electric Power. Company Units 1 and 2 l

-cc:: Ernest L. Blake, Jr.

Shaw, Pittman, Potts and Trowbridge l

-2300 N Street, N.W.

Washington, DC 20037 ,

i' Mr. Gregory J. Maxfield, Manager Point Beach Nuclear Plant Wisconsin Electric Power Company 6610 Nuclear Road Two Rivers, Wisconsin 54241 Town Chairman ,

Town of Two Creeks j Route 3

'Two Rivers, Wisconsin 54241 ..

Chairman- -

3 Public Service Commission of Wisconsin ,

Hills Farms State Office Building Madison, Wisconsin 53702 Regional Administrator, Region III U.S.. Nuclear Regulatory Commission Office of Executive Director  :

for Operations 799 Roosevelt Road Glen Ellyn, Illinois 60137 i

Resident Inspector's Office  !

U.S. Nuclear Regulatory Commission  !

L6612 Nuclear Road iTwo Rivers, Wisconsin 54241 J

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ATTENDANCE LIST 9/5/90 Nane Affiliationi Paul J. Katers ~ WE Chris_ North WE (QA)

Garry. Frieling WE Dave Butler RIII-DRS James Zach WE Bruce Sasman WE Chuck Krause WE(Licens'ing)

Bob Samworth NRC Jack Gadzala- NRC Nick Jackiw NRC-Region III Om P. Chopra NRC-SELB S. N. Saba NRC-SELB-J. N. Hannon NRC PDIII-3 Eve Fotopoulos SEP.Ct' Licensing, Bechtel

'J. H. Raval NRC/NRR/SPLB

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. AGENDA POR DIESEL GENERATOR / BATTERY J '- KEETING WITE STAFF, september 5, 1990 A. Introduction /:?urpose of Meeting B. Addition of riesel Generator Capacity

1. Existing Plant Configuration
2. Purpose of Modifications
3. Design Inputs
4. Description of Proposed Modifications
5. Proposed Design Standards
6. . Schedule
7. Licensing Issues C. Addition of Swing Safety Related Battery
1. Existing Plant Configuration
2. . Battery Testing Tech. Spec. Change-3.: Description of Proposed Modification
4. Schedule
5. Licensing Issues

.D . Addition of Non Safety Related Battery

1. Purpose of Modification
2. Description of Proposed Modification
3. Schedule -

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l) EMERGENCY DIESEL GENERATOR PROJECT l E

l EXISTING PLANT CONFIGURATION l .

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  • Two Emergency Diesels - Shared Between Units i u e Located in Adjacent Rooms in Control Building f

e' A Single Diesel is Required for Design Basis ,

o Accident  ;

  • Normal Plant Operation Requires that Both Diesels -,

be Operable

  • Removal of One Diesel from Service Places Both Units.in a Seven Day LCO
  • - Required Safety Loads under Design Basis  !

Conditions are Approximately 2700 KW. 2000 Hour E

Rating of Each of-the Existing Diesels is 2850 KW.

  • Placement of Additional Loads on the. Diesel .
  • Generators Which Enhance the Ability to Deal with Accident: Conditions,-Requires Operators to l Closely Control Diesel Generator Loading.
  • - Existing'.. Station' Blackout Response Utilizes Combustion-Gas Turbine as an Alternate. AC Source

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. . EMERGENCY DIESEL GENERATOR PROJECT PURPOSE.OF MODIFICATIONS

  • Increase Reliability-- Preliminary PRA Studies Have Shown That Addition of Diesel Generators Significantly Reduces the Probability of Core Damage

-* To Provide Additional Capacity - This Will Allow for Use of Additional Equipment Under Accident-Conditions. This Will in Turn Enhance Capability to Cope With Events and Will Reduce the Need for Operator Control of Diesel Generator Load.

  • To Provide Additional Margin Between Required Safety' Loads and Diesel Generator Capacity.
  • To. Allow for the Removal of Any One of the Diesel Generators from Service for Maintenance Without

-Entering an LCO Condition.

  • To Provide a Qualified. Alternate AC Source for Each Unit to be Used Instead of-'(or in Addition to) the Existing Combustion Gas Turbine.

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EMERGENCY DIESEL GENERATOR PROJECT DESIGN INPUTS

  • Additional Diesels and Associated Electrical -

, ' Systems Perform a Safety Related Function and~Will "

be Classified as Class 1E.

  • Where Components:of Auxiliary Systems are Necessary to Support Safety Related Functions of .t the Diesel Generators They Will Also be Classified 3 as Safety-Related.

c L  := Any Two Diesel Generators (Existing or New) Will -

3 L be Capable'ofLProviding the Necessary Power Required-to Respond to Accident Conditions, Plus L Capability for Supply.of Additional Desired .

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Loads.

Accident Conditions include a LOCA in One Unit and< Required Shutdown:of the Other Unit Coincident With a Lossiof All Offsite Power. In-Addition One. Diesel Generator isLAssumed to be Out of Service ( for Maintenance) and a Second Diesel L' Generator Fails.

Reduction of Operable: Diesel Generators t'o Two-

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p Will Result in:an LCO Condition.

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f.c EMERGENCY DIESEL GENERATOR PROJECT

. DESIGN INPUTS

  • Fuel Oil Supply Will Be Capable.of'Providing A.

Seven Day Supply of Fuel Oil for the-Two Additional Diesels.

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(Sharing Between Units When One Diesel is out of L Service) l L

  • Each of the Diesels Must Meet the Requirements to-p Qualify;as an Alternate AC Source for. Station Blackout-Purposes. This Requires the Following as 1 o a Minimum: ,

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- A Single Diesel Must Have Adequate Capacity:to '

Supply the Required Shutdown Loads .of Both Units. -

- The Normal Electrical-System Alignment Will .>

Require That Each Diesel be Dedicated to a. l Single Unit-and That it be isolated From the Electrical System of. the Other Unit by at Least

.Two Open Circuit Breakers.

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EMERGENCY DIESEL GENERATOR PROJECT ELECTRICAL CHANGES

  • New Safety Related 4160 Volt Busses 1A06

( Unit'#.1 B- Train) and 2A05 (Ur.!t #2 A-Train) Will be:Provided in the New Diesel Generator Building.

  • Each of..the Four Diesels (2 New and 2 Existing) Will be' Connected to Supply One of the Four 4160 Volt Safety Related Busses During Normal Operation.

Each Diesel Will be' Unit and Train Specific. Each-Diesel Will Start and Assume the Appropriate Loads Upon Loss of Voltage to the Associated Bus.

  • Upon Removal of a Single Diesel from Service.the System Will be Manually Realigned Such That the Diesel Dedicated to the Same Train of the Other Unit Will- Automatically Supply the Loads for the Single Train of Both Units.

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EMERGENCY DIESEL GENERATOR PROJECT ELECTRICAL. CHANGES

  • Removal of a Second Diesel From Service (LCO Condition) Will Result in One of Two Operating "

Arrangements. -

1) Each of the Two Remaining Diesels Would be i Shared Between Units, Each Diesel Supplying One- '

Safety Related Train for Both Units. In this Arrangement Neither of the Diesels-Would Qualify. ,

as an Alternate AC Source for Station Blackout ,

Purposes. -

2) EachLof the Two Remaining Diesels. Would Provide Supply to the Same Safety Related Train -

on Opposite Units. ( Example: One Diesel Would Supply A- Train Unit # 1 and the Second Diesel .

Would Supply A- Train on Unit # 2)' The Other 1 Train on Both Units Would be Inoperable.

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EMERGENCY DIESEL' GENERATOR PROJECT:

E PROPOSED MODIFICATIONS y

L' e NEW DIESELS ARE EMD MODEL 20-645-E4 i l/ BUILT IN 1976 FOR TVA-HARTSVILLE.

. EQUIPMENT INCLUDED.WITH,THE DIESEL: l

- AIR START SKIDS, FUEL OIL DAY TANKS, 1 AIR INTAKE FILTERS, INTAKE 'AND EXHAUST ,

SILENCERS AND FUEL OIL TANKS.

. NEW SWITCHGEAR IS ITE 4160v BUILT IN '

1980 FOR WPPS3.

  • THE NEW DIESELS AND SWITCHGEAR WILL '

BE HOUSED IN A SAFETY RELATED CONCRETE L

STRUCTURE.

THE NEW DIESELS WILL BE COOLED USING  !

RADIATORS. t

  • HE N DIESELS WILL INCLUDE A NEW o

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.< l EMERGENCY DIESEL GENERATOR. PROJECT

' APPLICABLE CODES AND STANDARDS- a e THIS PROJECT IS VIEWED AS A L

MODIFICATION OR ENHANCEMENT TO AN j EXISTING SYSTEM, NOT^AN ADDITION i OF A NEW SYSTEM. 4 L

  • THIS PROJECT WILL MEET ALL CODES, i STANDARDS AND REG GUIDES COMMITTED j TO IN THE POINT BEACH FSAR. .
  • THIS-PROJECT WILL MEET THE APPLICABLE STANDARDS OF THE TIME WHEN THE EQUIPMENT WAS MANUFACTURED FOR THE-EQUIPMENT-PURCHASED FROM-GENERAL.PUBLIC UTILITIES. 1
  • THIS PROJECT WILL REVIEW CURRENT DAY CODES, STANDARDS AND REG GUIDES TO  :

L DETERMINE WHICH STANDARDS-OR PORTIONS l THEREOF CAN REASONABLY BE MET.

l CONSISTENT WITH THE ABOVE ITEMS.

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. EMERGENCY DIESEL GENERATOR PROJECT ESTIMATED SCHEDULE-

1. DISCUSSIONS WITH THE NRC 09/05/90

,; 2. FILE REVISED APPLICATION 10/01/90 WITH PSCW

3. HlRE - A- FINAL DESIGN 12/01/90 CONSULTANT 4.- REFURBISH DIESELS 06/01/91
5. FINISH FINAL DESIGN 11/01/91
6. ' START CONSTRUCTION 11/01/91
7. ' START- UP TESTING 06/01'/93
8. COMPLETION 06/30/94 l

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EMERGENCY: DIESEL-' GENERATOR PROJECT

. LICENSING ALTERNATIVES >

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  • Instrument Bus Upgrade i
  • Spent Fuel Storage Expansion- .i
  • Component Cooling Water. HX Addition-l L . *' Other Projects o '

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EMERGENCY DIESEL GENERATOR PROJECT LICENSING SUBMITTALS AND APPROVALS

  • May 1991- Licensee submits Diesel Generator Design Bases- and Modification Report
  • Nov 1991- NRC confirms basic acceptability of proposed design e Jul 1993- Licensee. submits License Amendment Request with proposed Technical Specification changes e Jan 1994- NRC issues License Amendments approving revised Technical Specifications subject to project completion mi
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F SAFETY RELATED BATTERY ADDITION t

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  • Purpose - To Provide a Source of Emergency DC '

Power Which Can Provide for the Same Function as Any One of the Four Existing Station Batteries.

This Will Allow for Removal of Any One Station  !

Battery From Service For Testing or Maintenance.

  • Schedule - An Additional Battery and Racks were Purchased to Support Replacement of Original -

Plant Batteries in 1989. Present Schedule Calls  ;

l for Completion of This Project in Mid 1992, i (Reference Wisconsin Electric Response to inspection Reports 50-266/90-201 and i 50-301/90-201 dated August 3,1990) 1

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NON-SAFETY RELATED BATTERY ADDITION

  • Purpose - To Install a Non-Safety Related DC System including a Battery to Provide a Source for Selected Existing and Future DC Powered Equipment Which Does Not Require a Safety Related Source. This Will Allow for Removal of Several Large Loads From the Existing Safety Related Batteries, Thus Significantly increasing the Margin Between Available Capacity and Required Capacity. ,
  • Schedule - Design and Equipment Specification is Expected to be Completed in Early 1991. System installation will be Completed by Mid 1992.

( Reference Wisconsin Electric Response to inspection Reports 50- 266/ 90- 201 and 50- 301/ 90- 201 dated August 3,1990)

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