ML20031F279
| ML20031F279 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/09/1981 |
| From: | Cross W FLORIDA POWER CORP. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR 3F-1081-12, TAC-43912, NUDOCS 8110190471 | |
| Download: ML20031F279 (16) | |
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M Power C O N FO m a f iO N October 9, 1981 File:
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E.*,, 'on Mr. John F. Stolz, Chief p
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Operating Reactors Branch #4 Division of Licensing A
Office of Nuclear Reactor Regulatio Qfk "fg v.) g'D U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Crystal River Unit 3 Docket No. 50-302 Operating License No. OPR-72 Information Request Regardir:g Station Blackout
Reference:
NRC letter to Mr. J. A. Hancock from J. F. Stolz, dated July 9,1981
Dear Mr. Stolz:
Florida Power Corporation has reviewed past operating data concerning the Emergency Diesel Generators (EGDG).
The reviewed data consisted of Licensee Event Reports, Surveillance Procedure Reports, Maintenance Re-ports, Modification Reports, and Miscellaneous Test Reports.
A small portion of the data requested for the four tables had not-been recorded. When the requested information was not recorded, the initials' NR were used in the tables.
The missing data consist of the number of actual demand starts of the diesels not for testing, the duration of run before stop for each diesel failure (when a diesel failed to start 0 was used), and some of the downtime hours for maintenance and testing.
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'9110190471 811009 PDR ADOCK 0S000302
.F PDR..
General Office 3201 in rty-fourtn street soutn. P o Box 14042. st Petersburg. Flonda 33733 e 813-866-5151 U_-___.___-_-_____
Mr. John Stolz October 9, 1981 Page 2 1
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Florida Power Corporation hopes that the information supplied will help resolve the Unresolved Safety Issue A-44 regarding Station Blackout.
Si ncerely,
& & Q..&ew J
William A. Cross Manager l_
Nuclear Licensing i
j Klein(10/9)C5-3 l
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Enclosure I - Prg2 1 Plant N2w crvrtn1 Piver TABLE 1 Diesel Generator Operations Date Unit No.
7 Calendar Year 19 'TJ thru 1980 Reason for DC Humber Number Percent Duration of Run operation, & scheduled DC of of Loading of Before Stop For Identification of Failure Duration of Rain No, Starte Failuree DC (KW)
Each DC Failure (Refer to attached LERs or Table 3)
Tech. Spec Reg'd Test SP-35h DG Monthly Test A
GO 1
100
?P TR d6 (2 Hour)(1 start / test'.'
?
50 6
100 Tm:Tm:0:0;0 LER # 's 5,6,11,12,77-128,77-158 SP h17 Refueling A
6 n
100 Engineered Safeguards B
6 1
100 I!R LER #2 l
Response
SP-135 Engineered A
3 1
100 IIR LER #6 Safeguards Response B
3 1
100 Im Lutno SP-605 DG Inspection A
3 0
100 and Maintenance R
3 0
100 SP-902 Bus "A" Undervoltage Trip Tes-A 1
0 00 L
{
SP-901 Bus "B" Undervoltage Trip Tes-B 1
0 100 j
DC Actual Demand Starts not for Testing A
IB 0
Im n
'm 0
Tm j
l l
Hiscellaneous Testa (Specify Type)
J Maintenance A
12 0
100 B
11 0
100 Fast Starts A
51 2
100
, 0:0 LER # ' n 5 and _;3 i
J h3 5
100 0:TIR :tm :0:0 LER #'s 1,2,h,8 and 10 vl 4
I Im-Ilot Recorded
Diesel Generator Scheduled Downtime Record Page 1 of 3 TABLE 2 Calender Year 1980 Plant Name Crystal River Unit No.
3 Hours of Downtime Reason for Downtime Reactor Shutdown Reactor not Shutdown COMMENTS t
DC#
DC#
DC#
DC#
1A IB 1A IB Unscheduled NR EGDG-1B 12-18-80, Fire in Panel.
Maintenance Unscheduled 72 EGDG-1B 11-25-80, Failed start; Air switch out of Maintenance calibration. Recalibrated.
Unscheduled 33 EGDG-1A 9-23-80, Coolant and Fuel Leaks. Tighten Maintenance fuel lines to ejectors and injectors 1
Scheduled Prevent 20 EGDG-1A 8-25-80, 8-26-00, change of jacket coolant.
Maintenance Scheduled Prevent 24.5 EGDG-1A 8-12-80, 8-13-80, Turbocharger gasket Maintenance change.
Unscheduled NR EGDG-1A 8-7-80, Tripped. Adjusted field overcurrent Maintenance rel ay.
Scheduled Prevent 23.1 EGDG-1B 8-6-80, 8-7-80, Installed new aftercooler.
i Maintenance j
Unscheduled '
28 EGDG-1A 8-5-80, High temperature on discharge
{
Maintenance of turbocharger.
Repaired fuel header gasket #5 cyli1 der.
Gein(Form)DN113-1
Diesel Generator Scheduled Downtime Record Page 2 of 3
~
TABLE 2 Calender Year 1980 Plant Name Crystal River l
Unit No.
3 Hours of Downtime Reason for Downtime Reactor Shutdown Reactor not Shutdown COMENTS DC#
DC#
DC#
DC#
1A IB 1A 1B Scheduled 54.9 EGDG-1A 7-3-80 to 7-5-80, Maintenance.
l Maintenatice l
Scheduled 97.8 EGDG-1B 6-26-80 to 6-30-80, Maintenance.
Maintenance Unscheduled NR EGDG-1A 5-29-80 to 6-20-80, Radiator incompatible l'
Maintenance material.
Inspected radiator. Changed to NACL 0 396 corrosion inhibitor.
l Scheduled 110.5 EGDG-1A 5-5-80 to 5-9-80, Maintenance Maintenance Scheduled 8
EGDG-1B 5-7-80, Changed oil in fan drive gear box.
Maintenance Greased fan drive clutch support bearings, fan drive universal joint splines, fan bearings and fan drive clutch.
1 Scheduled 2
EGDG-1B 4-26-80, Grease jacket coolant pump motor, l
Maintenance fuel oil auxiliary pump DC motor.
j Scheduled 6
EGDG-1A 4-23-80, Greased jacket coolant pump motor, Maintenance fuel auxiliary pump DC motor. Greased motor.
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l K1cin(Form)DN113-1
i Diesel Generator Scheduled Downtime Record Page 3 of 3 TABLE 2 Calender Year 1980 Plant Name Crystal River Unit No.
3 Hours of Downtime Reason for Downtime Reactor Shutdown Reactor not Shutdown COMMENTS DC#
DC#
DC#
DC#
1A 1B 1A 1B
' Scheduled 14 EGDG-1A 4-21-80, Changed oil in fan drive gear box.
Maintenance Greased fan drive clutch support bearings, fan drive universal joint splines, fan bearings, and fan drive l
cl utch.
Scheduled Prevent.
361 EGDG-1A 4-15-80 to 4-3-80, Overhaul.
Maintenance l
Scheduled 10.5 EGDG-1A 3-11-81, Oil Change.
Maintenance Unscheduled 2
EGDG-1B 2-15-80, Loose bolt in spool piece on turbo-Maintenance charger line.
Tightened bolts.
Prevent. Maintenance
(
8 8
EGDG-1A & B 1-28-80, Checked fan blades for pitch of i
8.5*.
Contacted planning for inspection; one at a Inspection Q
time.
Unscheduled 8
EGDG-1A 1-16-80, Oil coming out of exhaust manifold.
Maintenance Tightened bolts and fittings.
Unscheduled 1
EGDG-1A 1-22-80, Fuel ejector leaks (#10), tightened M:intenance gasket bolts.
l Time DG is unavailable for NR EGDG-1B 8-7-80, Repaired leaks. Test cannot be auto-emergency service because matically started.
of required tests Klein(Form)DN113-1
1 i
i Diesel Generator Scheduled Downtime Record Page 1 of 2 TABLE 2 Calender Year 1979 Plant Name Crystal River I
Unit No.
3 Hours of Downtime Reason for Downtime Reactor Shutdown Reactor not Shutdown COMMENTS DC#
DC#
DC#
DC#
1A IB 1A IB Unscheduled 72 EGDG-1B 10-23-79, Crack in fuel line; resoldered.
Maintenance Unscheduled 72 EGDG-1B 7-24-79 to 7-30-79, Flames out of exhaust i
Maintenance while diesel loaded. Welded coolant leak. Replaced exhaust manifold gaskets.
1 Unscheduled 72 EGDG-1B 7-24-79 to 7-30-79, Alarm for high jacket Maintenance water temperature with normal gauge indicition.
Routed harness above problem.
[
Unsechedule 17 EGDG-1A 6-15-79, Lube oil leak in fan compartments.
l Maintenance Tightened flanges on oi? pipes in fan compartments.
Unscheduled 3
EGDG-1B 6-13-79, Outer flange covers an air cooler, Maintenance leaks while engine is in operation. Tighten covers, nuts, and bolts.
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l Klein(Form)DN113-1 l
o Diesel Generator Scheduled Downtime Record Page 2 of 2 TABLE 2 Calender Year 1979 Plant Name Crystal River Unit No.
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Hours of Downtime Reason for Downtime l Reactor Shutdown Reactor not Shutdowr.'
CDMMENTS-DC#
DC#
DC#
DC#
1A IB 1A 1B l
5 q
Unscheduled 17 EGDG-1A 6-12-79, Fuel injector leaking. Cleaned Maintenance flange and tubing and cleaned and reused old gasket.
Scheduled 66 66 EGDG-1A & IB 5-22-79, Drain and refill generators, Maintenance closed cycle c00 ling system to correct chemistry problem. Drained, flushed, refilled with coolant one at a time.
Unscheduled 12 EGDG-1A 5-17-79, Water leak from cylinder relief l
Maintenance valve. Replaced #100 cylinder relief adaptor "0" Ring.
l Unsechedule 8
EGDG-1B 3-27-79, Failed start on 2nd attempt. Reset Maintenance voltage regulatcr per SP-354, Revision 14.
I Scheduled 24 24 EGDG-1A & IB 1-16-75, Removed rubber drain base on Maintenance sump pumps in fan room.
Extended drain connection and provided pans to catch oil.
1 i
Klein(Form)DN113-1
Diesei Generator Scheduled Downtime Record Page 1 of 2 TABLE 2 Calender Year 1978 Plant Name Crystal River Unit No.
3 Hours of Downtime Reason for Downtime Reactor Shutdown Reactor not Shutdown C094ENTS DC#
DC#
DC#
DC#
1A 1B 1A 1B Unscheduled 2
, 5GDG-1B 12-21-78, 011 leak in fan drive gear box.
Maintenance
' Repla'ced breather inside breather cap.
I Unscheduled NR EG0G-1A 12-4-78, Hertz indicator reads 60.9 Hz at Maintenance actual 60Hz.
Recalibrated transducer and frequency motor to 60 Hz.
scheduled 20 EGDG-1B 11-27-78, Set high governor speed switch to 4
Maintenance come in at 60 N (900 RPM). Reset high swtich 'at 4 -
900 RPM.
Unsechedule NR EGDG-1A 11-20-78, Fuel oil leak on line #9 and #1.
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Maintenance Replaced #1 line and tigntened #9.
l Unscheduled NR EGDG-1A 11-20-78, Flange leak on left and right hand Maintenance side. No leak found.
Klein(Form)DN113-1
Diesel Generator Scheduled Downtime Record Page 2 of 2 TABLE 2 Calender Year 1978 Plant Name Crystal River Unit No.
3 Hours of Downtime R:ason for Downtime Reactor Shutdown Reactor not Shutdown C0t94ENTS DC#
DC#
DC#
DC#
1A 1B 1A 1B Scheduled Maintenance (18 Months Inspection) 40 EGDG-1A 8-11-78, Performed SP-605.
(18 months Inspection)
Unscheduled 8
EGDG-1B 1-9-78, Failed start; Trash in governor Maintenance servo-booster. Cleaned booster and changed oil in IA & 18.
i Time DG is unavailable for 3
EGDG-1B 11-17-80 (Scheduled Maintenance).
Refilled emergency service because governor, changed oil in governor servo-motor.
of required tests Performed SP-354.
24 EGDG-1A 8-11-78, (Scheduled Maintenance).
Performed SP-605.
Replaced one fuel injecticit nozzle.
Klein(Form)DN113-1
Diesel Generator Scheduled Downtime Rtcord Page 1 of 2 TABLE 2 Calender Year 1977 Plant Name Crystal River
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Unit No.
3 2
Hours of Downtime Rsason for Downtime Reactor Shutdown Reactor not Shutdown COMMENTS DC#
DC#
DC#
DC#
1A IB 1A 1B i
Scheduled Maintenance Unscheduled NR EGDG-1A 8-20-77, Exhaust water leak replaced gasket Maintenance in turbocharger.
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l Time DG is unavailable for NR NR EGDG-1A & IB 8-22-77, (TEST); Performed SP-605, emergency service because Section 6.1, 6.2, 6.3 - Outage.
cf required tests K1cin(Form)DN113-1
Encicguro 6 - Pcga 1 TABLE 3 Diccal C22sretcr Un:chzdalad Downtiac Recstd Plant NIme Calendar Year 19,11 _ 80 Unit No.
4 LER Abstract N(
Downtime Hours
-* **P
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""I failure under emergency conditions, please explain here.
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- E E*I Trouble-Parts, Del - Repair /
Refer to attacned LERs or the failures listed in Table 1.
Gd LER Abstrace s) Total Hours shooting tve ry. e t c teplace 1
13.5 13.5 0
.0 2
9h.5 50 0
27 0 3
20.0 10.0 0
0 h
6.5 1.5 0
5.0 5
h0,5 90 2h.0 75 6
5.0 D3-A 50 0
0 6.5 DG-1 6.5 0
0 7
5 0 DG-A 5.0 0
0 6.5 DG-L 65 0
0 8
5 5
0 0
l 9
1.0
.0 0
0 IDG declared inoperable due to cable Tunnel sump (SP-322)
Surveillance not being performed. When diesel operablity 3nrveillance (SP-354) was performed both EDG's started and
]
were operable. Under emergency conditions, this would not have resulted in a failure.
10 5.0 1.0 0
h.5 11 5
5 0
0 l
12 2.0 5
0 1.5 77-128 7
.T 0
0 77-158 11 5 1.5 0
10.
4 4
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Onsite Emergency Diesel Generator and Page 1 of 4 TABLE 4 Auxiliary Equipment Modification Record Plant Name Crystal River Unit No.
3 Equipment of Procedure Date of Reason for Modification and Description of Modification Modified Modification Desired Improvement EGDG 1A & IB Still in 1.
To reduce meter movement
- 1. Replace expanded scale synchronizing volt-progress for easier reading, meters with full scale voltmeters.
2.
To enable adjustment of the
- 2. Install rheostat and selector switch on the diesel generator exciter main control board.
voltage from the control room.
EGDG 1A & B Still in progress 1.
To correct wire color
- 1. Change wire color on certain contact points.
separation error.
- 2. Install flex conduit.
2.
To insure channel A 3 B separation is maintained
- 3. Install separation barrier.
behind the main control board.
EGDG 1A 6-26-81 Existing D.C. ammeter for Installed D.C. ammeter for diesel generator A diesel generator A was until a new D.C. ammeter arrived on site.
defective.
Existing meter is G.E. type DB-40, 0-100 MY meter movement. Replacement meter is G.E. type DB-18, 0-100 MY meter movement.
EGDG 1A & IB 4-22-81 To eliminate a personnel hazard The diesel generator lube oil cooler coolant in reading gauges and replace temperature indicators were moved from the both inoperative pressure gauges cooler to outside the radiator / fan enclosure.
The right-angle gearbox oil pressure gauges were moved to the same location.
I Klein(Enc 7)DN113-1 i
1 Onsite Emergency Diesel Generator and Page 2 of 4 TABLE 4 Auxiliary Equipment Modification Record Plant Name Crystal River Unit No.
3 Equipment of Procedure Date of Reason for Modification and Description of Modification Modified Modification Desired Improvement EGDG 1B 3-16-81 Need to add vent valve to allow Add "1/4' non-quality vent valve to DJP-6(F) venting pump during coolant port. Valve 1: to remain in system until next system refill.
radiator drain.
EGDG 1A & IB 11-21-80 The relay teitperature setting Replace the generator stator temperature relay range did not correspord with (Device 49) for emergency diesel generators the generators nameplate.
IA & IB with a similar relay except with higher temperature setting range.
EGDG 1B 11-13-80 Temporary rigging supports are Install the temporary rigging supports in the required on the ceiling, in ceiling of the EGDG-1B room.
order to remove and repair turbo charger.
Diesel lube oil system 10-9-80 The old 90 F setpoint causes Change setpoint on low lube oil temperature the diesel generator to be in-alarm on EGDG-1A & 18 from 90*F to 95'F the operable due to low lube oil applicable instruments affected are DL-11-TS temperature when the alarm set-and DL-12-TS.
point is reached.
EGDG 1A 8-4-80 Wrong size gasket material was Approve the use of non"Q" gasket materials in received when new, replacement the air inlet of emergency diesel's turbo-turbocharger received on 8-2-80 charger so that the diesel could be restored to and 8-3-80.
Non "Q" gasket operating status. New gasket material used was material had to be used in similar in consistency and texture to original order to restore diesel to material.
operable status.
Klein(Enc 7)DN113-1
Onsite Emergency Diesel Generator and Page 3 of 4 l
TABLE 4 Auxiliary Equipment Modification Record Plant Name Crystal River Unit No.
3 l
Equipment of Procedure Date of Reason for Modification and Description of Modification Modified Modification Desired Improvement l
EGDG 1A & IB 7-3-79 There was a design error that It was necessary to disconnect the lube oil prevented the shutdown relay pressure low shutdown contacts from bus 5B and from being reset in the normal reconnect them to bus 5A.
manner, when the diesel genera-tors were tripped from low lube l
oil pressure, without an E.S.
signal present.
I EGDG 1A & IB 5-22-79 To insure all conditions that
- 1. Add the following alarms to each diesel would prevent an auto start of generator.
a diesel generator are alarmed in the control room, as well as (a) Diesel generator control volts. No.
advising the operator when such auto start.
an auto start is not available.
(b) Diesel oil pressure low oil auto start.
l Also to comply with the letter answering NRC Questinnaire
- 2. Add "no auto start" to the following exist-Docket #50-302.
in annunciator windows of each diesel a
generator:
(a) Any diesel SW Non-Auto.
(b) Diesel Fail to Start.
(c) Diesel Diff Relay Energ.
(d) Diesel Air Pressure low.
EGDG 1A & 1 B 5-22-79 To eliminate the alarm for " oil Remove diesel generators IA & IB alarms "011 Press Low, No Auto Start," since Press Low, No Auto Start," and add Exciter it is an invalid alarm during Circuit Loss of Power Alarm.
starting and is a nusiance to the operator.
Klein(Enc 7)DN113-1
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i Onsite Emergency Diesel Generator and Page 4 of 4 TABLE 4 Auxiliary Equipment Modification Record Plant Name Crystal River Unit No.
3 i
Equipment of Procedure Date of Reason for Modification and Description of Modification
}
Modified Modification Desired Improvement I
EGDG 1A & IB 5-3-79 To eliminate the field ground Interlock field ground detection during field alarm caused by a battery ground flashing.
(Should be operative at rest and at i
that occurs during the use of full speed).
station battery to flash field.
EG-11, 12, 13, 14, 15 3-16-79 To comply with FSAR requirements Replace Penn Controls pressure swtiches with
& 16-PS that state the starting air Square-D so that minimum deadband can be system will supply starting air reached. These switches have been bench at 225 to 250 psi. These tested, and they do reset the 25 pound deadband.
t Square-D switches. are the same as EG-11, 12, 13, 14, 15, &
16-PS (MOD ACW2)
EGDG 1A & IB 1-15-79 To prevent possible future Replace cam rollers with new design. All failure of cam shaft and cam parts to be furnished by Colt Industries.
followers.
Colt supplied a Company Representative to e
instruct in proper replacement of rollers.
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5-I i
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l Klein(Enc 7)DN113-1 4
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