ML19309C414
| ML19309C414 | |
| Person / Time | |
|---|---|
| Issue date: | 04/02/1980 |
| From: | Carroll D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wright G ILLINOIS, STATE OF |
| References | |
| NUDOCS 8004080572 | |
| Download: ML19309C414 (2) | |
Text
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NUCLEAR REGULATORY COMMISSION PDR c
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799 ROOSEVELT ROAD g, v.....f cLEN ELLYN, ILLINOIS 6o137 US2 M
State of Illinois Department of Public Health ATrN:
Mr. Gary N. Wright, Chief Division of Nuclear Safety 535 West Jefferson Street Springfield, IL 62761 Gentlemen:
The enclosed IE Circular No. 80-05 titled " Emergency Diesel - Generator Lubricating Oil Addition and Onsite Supply" was sent to the following licensees on April 1, 1980 for information:
American Electric Power Service Corporation Indiana and Michigan Power Company D. C. Cook 1, 2 (50-315, 50-316)
Cincinnati Gas & Electric Company Zimmer (50-358)
Cleveland Electric Illuminating Company Perry 1, 2 (50-440, 50-441)
Commonwealth Edison Company Braidwood 1, 2 (50-456, 50-457)
Byron 1, 2 (50-454, 50-455)
Dresden 1, 2, 3 (50-10, 50-237, 50-249)
La Salle 1, 2 (50-373, 50-374)
Quad-Cities 1, 2 (50-254, 50-265)
Zion 1, 2 (50-295, 50-304)
Consumers Power Company Big Rock Point (50-155)
Midland 1, 2 (50-329, 50-330)
Palisades (50-255)
Dairyland Power Cooperative LACBWR (50-409)
Detroit Edison Company Fermi 2 (50-341)
Illinois Power Company Clinton 1, 2 (50-461, 50-462) 8004080 h 2
State of Illinois Iowa Electric Light & Power Company Duane Arnold (50-331)
Northern Indiana Public Service Company Bailly (50-367)
Northern States Power Company Monticello (50-263)
Prairie Island 1, 2 (50-282, 50-306)
Public Service of Indiana Narble Hill 1, 2 (50-546, 50-547)
Toledo Edison Company Davis-Besse 1 (50-346)
Union Electric Company Callaway 1, 2 (50-483, 50-486)
Wisconsin Electric Power Company Point Beach 1, 2 (50-266, 50-301)
Wisconsin Public Service Corporation Kewaunee (50-305)
Sincerely, b?.
4, a
c.athy E.
arroll, Acting Chief Administrative Branch
Enclosure:
IE Circular No. 80-05 cc w/ encl:
Mr. D. W. Kane, Sargent & Lundy l
Central l'iles Reproduction Unit NRC 20b Local PDR NSIC TIC m
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SSINS No.: 6830 Accession No.:
1 UNITED STATES 7912190691 NUCLEAR REGULATORY C0ffilSSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.,C.
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April 1,1980 IE Circular No. 80-05 EMERGENCY DIESEL-GENERATOR LUBRICATING OIL ADDITION AND ONSITE SUPPLY Description of Circumstances:
On January 17', 1980, the Kewaunee Nuclear Power Plant experienced a partial loss of offsite power which resulted in a turbine trip, reactor trip, and one emergency diesel engine driven generator (diesel generator or D/G) supplying power to one engineered safeguards bus.
Offsite power continued to supply the other engineered safeguards bus.
During the day before, on 1-16-80, this diesel generator had successfully completed a 24-hour loaded test run but had a low lube oil alarm condition with oil level 1/2-inch low. The D/G was fully operational in this condition.
Before oil could be added on 1/17/80, the D/G was required for emergency power following the failure of the reserve auxiliary transformer.
The normal oil fill location could not be used while the D/G was operating.
The D/G Technical Manual (TM) indicated that oil could be added with the engine running, but did not describe the method to be used.
Lube oil was added by pumping into the engine through a pipe that was assumed to be a lube oil line; this line was color coded in the TM and painted with the lube oil system color code. Three barrels of oil were added via this line while the D/G was operating. After transferring the emergency bus to off-site power through the tertiary auxiliary transformer the D/G was shut down. With the D/G shut down two more barrels of oil were added through this line without increasing the sump level.
Then two more barrels of oil were added through a different addition point and the level was restored to normal.
The following day a factory representative determined that the first five barrels of oil had been added to the engine air box through a mismarked (should have been color coded as an air line) drain connection.
Four and a half barrels of oil were drained out after which the diesel generator was satisfactorily test operated.
It is believed that the diesel engine could have been damaged had an engine start been attempted while the five barrels of oil were in the air box.
Further, it is noted that procedures for adding oil to the operating diesel engine were not available and that the personnel performing the addition were not familiar with, nor trained on, how to add oil to a running engine or how to verify that oil had been properly added.
This event brought to light an additional problem which may be ganeric.
During the previous day's test run of the diesel generator lube oil consumption was approximately 3 gal /hr.
During the loss of power event, the licensee had three barrels (165 gallons) of lube oil available onsite.
The licensee's
IE Circular No. 80-05 April 1, 1980 Page 2 of 3 i
Technical Specifications require a seven day supply of fuel oil for one diesel generator be available onsite.
To meet the intent of the Technical Specifications, a seven day supply of lube oil should also be available onsite.
The diesel engines are model 999-20 manufactured by the Electro-Motive Division of General Motors Corporation.
These diesel engines use a 2-stroke cycle and lube oil consumption is normally higher than for the 4-stroke cycle diesel engines.
Vendor representatives and NRC consultants indicate that lube oil consumption rate varies with engine condition and load.
Further, the 3 gal /hr consumption rate is considered to be in the normal range.
RecommendedNctionforLicensee'sConsideration:
All holders of operating licenses for nuclear power reactor facilities should be aware of the potential problems described above.
Because of the generic nature of these matters, it is recommended that the considerations identified above be reviewed at your facility in the following respects:
1.
Verify the existence and adequacy of procedures or instructions for adding lubricating oil to safety related equipment.
This should include the following:
I a)
Whether or not, how and where lube oil can be added while the equipment is in operation, b)
Particular assura.nce that the wrong kind of oil is not inadvertently added to the lubricating oil system, and c)
That the expected rise in level occurs for each unit of lube oil added.
These operating procedures or instructions should be available locally in the area of the affected equipment.
2.
Verify that personnel are trained in such approved procedures and demonstrate an ability for using these procedures to add oil while the D/G is operating and that they understand how to verify that the proper amount of oil has been added.
3.
Verify that the color coded, or otherwise marked, lines associated with the diesel generator are correct and that the line or point for adding l
lube oil has been clearly identified.
l 4.
Verify that appropriate procedures or instructions exist, and personnel are trained, on the proper addition of lube oil and the performance of maintenance during operation of other similar vital equipment.
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IE Circular No. 80-05 April 1, 1980 Page 3 of 3 5.
Determine the lube oil usage rate for each diesel engine under full load conditions including the rates considered to be excessive. -Provide adequate inventory of lubricating oil of the proper grade consistent with the highest usage emergency diesel generator (s) operating for the time period specified in the plant Technical Specifications for fuel oil supply. When lube oil consumption rates become~ excessive, provisions should be included for overhaul of the diesel engine.
All Wders of construction permits for nuclear power reactor facilities shou-be aware of the potential problems identified above and initiate appropriate procedures prior to initial fuel loading.
No written response to this Circular is required.
If you require additional information regarding these matters, contact the Director of the appropriate NRC Regional Office.
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1 l
IE Circular No. 80-05 Enclosure April 1, 1980 RECENTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to No.
Issue 9
80-04 Securing of Threaded Locking 3/14/80 All holders of a power Devices on Safety-Related reactor OL or CP Equipment 80-03 Protection from Toxic Gas 3/6/80 All holders of a Hazards power reactor OL 80-02 Nuclear Power Plant Staff 2/1/80 All holders of Reactor Work Hours OLs, including research and test reactors, and cps 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power reactor operating facilities and holders of nuclear power reactor cps 79-25 Shcok Arrestor Strut 12/20/79 All licensees and Assembly Interference holders of power reactor cps 79-24 Proper Installation and 11/26/79 All Holders of a Calibration of Core Spray Power Reactor OL or Pipe Break Detection CP Equipment on BWRs.
79-23 Motor Starters and 11/26/79 All Power Reactor and Contactors Failed Operating Facilities to Operate and Holders of Reactor cps 79-22 Stroke Times for Power 11/16/79 All Power Reactor Operated Relief Valves Operating Facilities and all Utilities having a CP i
79-21 Prevention of Unplanned 10/19/79 All holders of Power Releases of Radioactivity Reactor OLs and cps l
79-20 Failure of GTE Sylvania 9/24/79 All holders of Power l
Relay, Type PM Bulletin Reactor OLs and cps 7305. Catalog SU12-11-AC with a 22V AC Coil
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