ML20100J296
| ML20100J296 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 01/28/1985 |
| From: | LONG ISLAND LIGHTING CO. |
| To: | |
| Shared Package | |
| ML20100J250 | List: |
| References | |
| 29.015.01, NUDOCS 8504100443 | |
| Download: ML20100J296 (8) | |
Text
's' b
SP Number 29.915.01 Submitted:
M P
Reviewed /00A r:
/
A Revision 9 w
Date Eff.:
- - sf 8 Approved / Plant Mgr.:
Y LOSS OF OFF-SITE POWER EMERGENCY PROCEDURE
1.0 SYMPTOMS
1.1 loss of both normal and reserve station power.
1.2 Included in the number of station annunciators that would occur, the following annunciators actuate:
1.2.1 4 KV EMERGENCY BUSES 101,192,103 UV 1.2.2 4 KV BUS 1A, IB, 11, 12 UV
- 1. 2. 3 480 V NSS SPLY BUS UV 1.3 All AC bus voltmeters and ammeters indicate zero until the Emergency Diesel Generators re-energize the emergency buses.
l 2.0 APT 0MATIC ACTIONS:
G 2.1 Reactor Scram 2.2 NSSSS Isolation 2.3 Emergency Diesel Generators 101,102, and 103 start and energize the emergency buses.
2.4 Service Water pumps start; one pump on each 4 KV emergency bus, l
2.5 RBSVS Initiates 2.6 RBSYS/CRAC Chillers start.
3.0 IMMEDIATE ACTION:
INITIALS 3.1 Verify automatic actions and manually initiate any which failed to occur.
3.2 Enter the Emergency Shutdown Procedure, SP 29.910.01.
l 3.3 Notify the System Operator that a loss of offsite power has occurred. Determine from the System Operator if the Holtsville or the onsite 20 MW black start gas turbines have started.
O FEB 251985 QQfj{QQ
]Q(
kD 4IhCK05000322 43 850404 V
PDR J
i l
4.0 SLTSEOUENT ACTION:
Do not exceed a load of 3300 KW on any Emergency Diesel CAUTION:
Generator.
[
Ensure that each Emergency Diesel Generator is maintaining its 4.1 associated bus at or close to 4160 V and 60 Hz.
5 4.2 If the Loss of Of f site Power continues for greater than minutes, then notify the Watch Engineer to classify the event per EPIP 1-0 and initiate the emergency plan as required.
If the 3300 EW load limit is or will be exceeded by addition of 4.3 other loads. refer to Table 1 for a listing of loads which may be removed.
~
CAUTION:
Emergency Diesel Generator load shall not exceed 3250 MW prior to energizing a Reactor Protection System bus from that generator.
I 4.4 Re-energize Reactor Protection System buses A and B from either j
their normal or alternate supply.
5 CAUTION:
Continue in this procedure only when adequate core f
cooling is assured and Primary Containment pressure and temperature are under control.
L O CAUTION:
Emergency Diesel Generator load shall not exceed 3200 XW prior to starting the associated RBCLCW pump.
i 4.5 Start one RBCLCW pump in each loop.
l l
(
EmerFency Diesel Generator load shall not exceed 3050 l
CAUTION:
KW prior to starting the associated Control Rod Drive i
pump.
4.6 Start one Control Rod Drive pump.
(With a LOCA signal present, the CRD pump is locked out for 60 seconds.
In addition, RBCLCW cooling water to the pump will be isolated by a LOCA signal.)
l li O
SP29.915.91 Rev. 9 Page 2 h
(
- s 4.7 Verify that the following equipment has cd:qu ta lubrientien by ensuring that one lubricating oil pump is operating for each major piece of equipment:
NOTE:
While a LOCA signal is present the following AC powered turbine auxilliary loads are locked out.
4.7.1 Main Turbine 4.7.1.1 AC powered Main hrbine hrning Gear Oil Pump.
N34-P-115.
(Starts when Shaf t Driven Pump discharge is < 190 psig or bearing header is < 15 psig)
OR DC powered Main hrbine Emergency Bearing Oil Pump N34-P-116.
(Starts if hrning Gear Oil Pump fails.)
4.7.3 Reactor Feedpump, Turbine 4.7.3.1 AC powered Feedpump Turbine hrning Gear 011 Pump.
N34-P-164A & B.
(Starts when Reactor Feedpump Turbine bearing header < 44 psis)
OR 4.7.3.2 DC powered Feedpump hrbine Turning Gear Emergency
()
011 Pump. N34-P-165A & B (Start when Reactor Feedpump Turbine bearing header < 36 psis).
4.7.4 Reactor Recirculation HG Set 4.7.4.1 DC powered Reactor Recirculation MG Set Emergency 1mbe 011 pumps (B31-P-130A/B).
1 CAUTION: Emergency Diesel Generator load shall not exceed the following prior to energizing the associated MCC:
3250 MW for Emergency Diesel Generator 101 MCC1118 3250 MW for Energency Diesel Generator 102 MCC1125 3150- KW for Emergency Diesel Generator 103 McCll3A 4.8 If a LOCA signal is present, then reset the Shunt Trip Override switches for MCC 1118, MCC 1128. and MCC lilA in the corresponding Emergency Switchgear Rooms.
Then reset the supply breaker for each MCC.
(These actions energize the AC powered
+
loads in step 4.7 as well as the Main Tbrbine and Reactor Peedpump Turbine Tbrning Gears and the Main 1brbine Bearing Lif t Pumps.)
SP29.915.01 Rev. 9 Pese 3
(
L
+,
e 4.9 Evaluate plcnt conditions Ct this time. Verify th:t plcnt status is consistant with Technical Specifications: if not then initiate corrective actions to restore plant status to within the Technical Specifications.
When NSST and/or RSST power is restored perform the followingj 4.10 Monitoring by control room personnel of power restoration to NOTE:
the NSST or the RSST by system operations may be accomplished by closing Bkrs.1A-3 or 15-2 (NSST) or Skrs.1A-4 or 15-1 (RSST) and monitoring bus indicating lights on MCB-1.
4.10.1 Verify that the 4RV normal busses are energised. If 9nly the NSST or RSST is rectored. lineup all normal buses ~to that transformer. (If a LOCA signal is present, bus !!
and 12 cannot both be connected to one transformer.)
4.10.2 Restore the TBCLCW system to service.
4.10.2.1 Place the TBCLCW Pump control switches in :
PULL-TO-LOCK.
4.10.2.2 Verify that the discharge valve for each TBCLCW pump is CLOSED.
4.10.2.3 Start one TBCLCW pump and verify that the pump starts and that the associated discharge MOV opens.
4.10.2.4 Place the control switch for the standby TBCLCW O
pump to AUTO-ATTER-STOP.
4.10.3 Restore the Instrument and Service Air System to service.
4.10.3.1 Place the RUN. PRI and SEC air compressor control switches (in that order) to 0FF and then back to the original position.
4.10.3.2 Verify that the RUN compressor starts.
4.10.4 Transfer the emergency buses to their normal supplies and place.the Diesel Generators in Standby.
I 4.11 Evaluate plant conditions and restart or shutdown the followinz equipment as required per the appropriate operating procedurest F
4.11.1 Restart the RBNVS and shutdown the RBSYS.
4.11.2 Restart Turbine Building MVAC l:
4.11.3 Restart Radweste Building MVAC l
SP29.015.01 Rev. 9 Page 4 l
L
p.
4.11.4 Restcrt Reacter Watcr Cloccup System 4.11.5 Restart one condensate Pump 4.11.6 Restart the Vacuus Priming System and at least one O
Circulating Water Pump per condenser half.
e-4.11.7 Restart one Fuel Pool Cooling Pump
~
4.11.8 Shutdown the third RBCLCV pump if all three are operating.
Re-evaluate plant conditions at this time to determine if the 4.12 plant is to be restarted or remain shutdown.
4.13 Restart other systems and equipment as required.
5.0 FINAL CONDITIONS:
I 5.1 Electrical power has been restored to NSST and RSST.
Emergency Diesel Generators have been restored to Standby.
5.2 5.3 SP 29.916.91 Emergency Shutdown procedure has been completed.
Appropriate information logged in the Control Room Log Rook.
5.4
6.9 DISCUSSION
This procedure provides information and instructions to place the plant in
()
6.1 a safe condition following a simultaneous loss of both normal and reserve For this procedure. it is assumed that the plant is station power.
operating at full power when the incident occurs.
The qualified load is defined as the load level at which the Emergency 6.2 Diesel Generator has been demonstrated to be capable of functioning for a The Shoreham EDCs have been qualified by test to sustained period of time.
3300 MW.
The Shoreham TDI emergency diesel generators and emergency loads have been evaluated to assure that the " maximum emergency service load" (MESL) on The NESL is determined for each EDG each diesel will not exceed 3.300 KW.
by summing the individual loads which will be simultaneously connected to l
The evaluation concluded that the LOOP /LOCA that EDC following any event.
is the limiting event and that the NESL is 3253.3 NW for EDG-101, 3208.7 KW for EDG-102 and 3225.5 KW for EDC-103. These MESL values are bas initial continuous load that is automatically applied to the EDGs during a In the early phases of operator LOOP /LOCA prior to any operator action.
action affecting the EDC loads, the RHR and Core Spray pumpa will first be throttled back to their rated flow conditions (7.700 spe for each RHR pump in a loop and 4725 gym for each Core Spray Pump) thereby reducing EDC load suf ficiently to allow for the addition of MSIV-LCS, RPS MC Sets if re-settable and Primary Containment Atmospheric Control System Those operator sctions which add load to the (recombinera) if necessary.
O SP29.915.91 Rev. 9 Page 5
die:s1 must be d:n2 in cecord nca with th2 EDC 1ccd manrges2nt proccutiens and guidance provided in this procedure to ensure that the qualified load (3,300 W ) is not exceeded. The actual loads on the the EDGs are expected 1his is bmed to be significantly lower than the calculated MESL values.
upon the Intergrated Electrical Test (IET) which was performed at She has He peak loads seasured for each EDG were with the TDI diesel generators.
2833.6 p. 2806.9 W and 3072.0 W for EDG-101,102 and 103, respectively.
.. - ~.
Special consideration should be given to those systems and equipment in l
6.3 Radwaste 'which were in operation when power was lost. Valve lineups, etc., should be checked carefully before continuing an operation which had i
been interrupted.
s h is load management program has been implemented to confrom with SNRC-1092 f
6.4 dated Oct 29, 1984 Walified load - TDI Diesel Generators.
4 i
! O I
h i
i O
SP29.915.91 Rev. 9 Page 6
I TABLE 1 P2g2 1 of 2 s
The following loads, controlled from the Main Control Room, trip on a loss of power with a 1DCA-Signal when the EDG output breakers close:
MAX LOAD (KW)
EDG-101 EDG-102 EDG-103 Main Turbine Turning Gear 32 011 Pump (N34-P-115)
Main Turbine Bearing Ldf t Pump (N34-P-093 A-G) 8 8
12 F edpump Turbine Turning Gear (N39-TG-002 A&B) 1.2 1.2 Faedpump Turbine Turning Gear Oil Pump (N34-P-164 A&B) 8 8
Control Rod Drive pump (C11-P-017 A&B) 206.1 206.1 RBCLCW pump 80 (P42*P-005C)
Drywell Cooling System I
Fan (T47-UC-17 A&B) 80 80 Reactor Water Cleanup Recire. Pump
~
48 48 (G33-P-019 A&B)
48 (N39-TG-001)
Main Turbine Piggyback Turning Gear Drive 0.4 (N39-PBM-001)
The following loads, controlled from their respective Emergency Svitchgear Rooms.
Trip on a loss of Power with a LOCA signal when EDG output breakers close:
~
Lighting (Equivalent KW)
(X40-PNL-ACl&2 &
227.2 T51-PNL-AC2) 180
}
RFP EHC Control Transformer (N32-PNL-EHX) 1.2 1.2 Reactor Protection System Backup Transformer 20 (C71-T-001)
Battery Charger +24V (R41-BC-A2-1&2&B2-1&2) 2.4 2.4 120 V Nonemergency Feeds 12 (135-T-N20) i h
i
?
E I
SP 29.015.01 Rev. 9 1
pa9' 7 l
t
TABLE 1 Page 2 of 2 The following loads powered from (RB 78'), trip on a loss of Power with a LOCA:
O LOAD (KW)
EDG 101 EDG 102 EDG 103 Refueling Jib Crane (T31-CRN-008A & B) 2.5 2.5 Standby Liquid Control Main 10
~ Beater (C41-H-009A)
Standby Liquid Control Mixing Hester (C41-H-0098) 45 Standby Liquid Control Heat Tracing (R81-T-002A & B) 3 3
Primary Containment Air Cooler Subfeed (H11*PNL-VC2) 1.6 1.6 The following loads controlled locally, Relay Room (CB-44' el), Trip following a loss of Power or a loss of Power with a LOCA Signal, when the EDG ouput breaker closes:
R2 actor Protection System M/G Sets-(IC71-MG-002A&B) 20 20 i
l The following loads, controlled locally, from their. respective Emergency Diesel
[
Generator Rooms, Shutdown following A loss of power or A loss of power with a LOCA signal when their respective diesel starts:
l Diesel Generator Jacket Water Hester (R43*H-014A-C) 72 72 72 Diesel Generator Jacket i
Water Keep Warm Pump (R43*P-238 A-C) 2.5 2.5 2.5 Diesel Generator Lube f
011 Hester l
(R43*H-015 A-C) 20 20 20 Diesel Generator Before
& af ter 14 be Oil Pump (R43*P-226 A-C) 4 4
4 l
Diesel Generator Heater F
(R43*H-012 A-C) 4.2 4.2 4.2 l
SP 29.015.01 Rev. 9 Page 8 l
l lO l
i
_ _ _ -.