ML20100J283
| ML20100J283 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 02/27/1985 |
| From: | Sealice J LONG ISLAND LIGHTING CO. |
| To: | |
| Shared Package | |
| ML20100J250 | List: |
| References | |
| LR-85-01, LR-85-1, NUDOCS 8504100436 | |
| Download: ML20100J283 (38) | |
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i TDI-Emergency Diesel Generators 3300 KW Qualified Load Lesson Plan b
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u 1.0 LESSON PLAN: TDI-EDG 3300 KW Qualified Load.
2.0 LECTURE DURATION:
3.0 MATERIALS REQUIRED FOR STUDENT 3.1 SP 19.015.01 Rev. 9, Loss of Offsite Power 1
3.2 SP 29.010.01 Rev. 4, Emergency Shutdown 3.3 SP 29.023.01 Rev. 5. Level Control 3.4 SP 20.023.03 Rev. 9. Containment Cont,rol 3.5 SP'29.023.04 Rev. 2, Level Restoration 3.6 SP 29.023.05 Rev. 3, Rapid Depressurization 3.7 SP 29.024.01 Rev. 3 Transient with Failure to Scram 3.8 SP 23.702.04 Rev. 4, Suppression Pool Leakage Return 4.0 MATERTALS REOUIRED FOR INSTRUCTOR 4.1 Enough copies of TDI-EDC 3300KW Qualified Load Problem Sets to be handed out to students 4.2 Transparencies contained in Section 9.0 of this Lesson Plan 4.3 Enough copies of 4KV and 480V KW load tables to be handed out to students.
5.0 REFERENCE MATERIALS 5.1 Copy of.LILCO prefiled testimony concerning the 4
3300KW qualified load, crankshafts and engine blocks dated 1/15/85 5.2 Copy of Breaker Lineup Checklist for panels X40-PNL-AC1, X40-PNL-AC2 and T51-PNL-AC2 contained in SP 23.317.01. Rev. 7. Appendix 12.2.
6.0 SCOPE
Based on the typical requalification Iceture class size ( 6) and the high icvel of each individuals plant specific knowledge, the information concerning the 3300KW qualified load will be presented using a discussional type presentation supplemented with problem sets.
The presentation will include the SNPS response en the following conditions:
Loss of Offsite Power (Loui9 Loss of Offsite Power in coniunction with a 1.oss e.f Coolaut Accident G.00P /LDCA)
Loss of Offsite Power in conjunctton with a Failure to Scram (LOOP /ATWAS)
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Correct operator response to each of'the above conditions will be discussed with particular attention being paid to ensure operator response results in load on each EDG being maintained at lcss than 3300KW. Situations in which single EDG's fail to start will also be discussed, as will multiple failure type situations that cause individual EDG loads to exceed 3300KW.
i 7.0 STUDENT OBJECTIVES 7.1 Given a loss of offsite power conditions, with no LOCA signal present, list the 4KV and 480KV motor loads (not MOV's) that will auto start / trip for any of the following situations:
-a)
All 3 EDG's start and resto're power to their respective emergency buses.
b) 2 of 3 EDG's start and restore power to their respective emergency buses.
7.2 Given a loss of offsite power condition in conjunction with a LOCA signal list the 4KV and 480V motor loads (not M0V's) that will auto start / trip for any of the following situations:
a)
All 3 EDG's start and restore power to their respective emergency
- buses, b) 2 of'3 EDG's start and restore power to their respective emergency buses.
7.3 Given a status of running 4KV & 480V motor loads, identify loads that have g
failed to auto start / trip for either of the following conditions:
a)'
Loss of of fsite power with no LOCA signal present i
b)
Loss of offsite power with a LOCA signal present 7.4 State the TDI-EDG load limits for the following conditions:
a)
Surveillance test purposes b)
In support of accident and/or emergency conditions.
SRO ONLY 7.5 Given a status of running 4KV i. 4P,0V motor loads and initial values of EDG loads, use the SP 29.015.01, Rev. 9 to list in sequence the loads that you would start /stop in order to perform all actions required from the Syr.:p t oma t i c 1.nergency Proudures and ruintain the load on each EDG< 1300KW.
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7.6 Given a EDG load in excess of 3300 KW and a status of running 4KV and 480V motor loads and a status of the following RPV and containment parameters:
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DW pressure j
DW temperature
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SP level l
SP temperature i
identify the equipment that you would shutdown in order to reduce EDG load i
to less than 3300KW while maintaining adequate core and containment cooling.
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8.0 LESSON Loss of Offsite Power
. Transparency #1 Use Transparency I to review status of plant prior to LOOP.
Assure students that RCIC problem has just occurred and Rx shutdown is soon to be started.
Hand out Sheet #2 of TDI-EDG Have students fill in table on Sheet 2 Problem Set.
with the status of components after the Tell students to assume no operator LOOP event.
cction has occurred.
Give students enought time so that each completes his table.
If~ asked, supply the following info:
Rx Power = 0% on APRM's Rx Level - -20 and decreasing DW Pressure = 15.2 PSIA.
Transparency #2 Use Transparency #2 to lead discussion of Post LOOP Plant Status (Uncover 1 system at a tine rather than present entire transparency at once).
Transparency #2A Have students review energency procedures and complete a list of actions that must be taken for this situation.
k Compare list of actions compiled by' class to these Verify Rx scran and perform 29.010.01 Verify auto actions of 29.015.01 have occurred.
Handout sheets 3 & 4 of TDI-EDG Problem Set and have the students complete them.
Verify group isolations consistent with entry conditions.
Verify auto initiation of ECCS consistent with entry cepditions (none).
Restore and maintain RPV Icec1 between 4!?.5" and 54.5".
1 _.
Review effect on EDC loads due Operate available S.P. cooling.
to various' combination of running pumps-Lineup for injection and start pumps in at least 2 of the following normal injection subsystems.
CSA CSB LPCI A LPCI B Open all ADS valves and proceed.to Rapid Depressurization.
'estore and maintain RPV level between.
Point out that for a LOOP event R
the Main Turbine & Rx Feed Pump
+12.5" and + 54.5".
Turbine AC auxiliary loads should auto start.
Use Transparency 2A to show approximate load expected on EDG's after a LOOP.
Point out variation that could exist due to:
Rx Bldg Exhaust Fan Alignment CRD Pump Alignment RBSVS/CRAC Chiller Response Transparency #3 LOOP /LOCA Use Transparency 3 to review status of plant prior to LOOP /LOCA.
Point out to students that B RBSW pump is disassembled for maintenance.
Point out to students that RCIC failure
-was recent and plans are in progress to start power reduction for a plant shutdown.
Hand out sheet #5 of TDI-EDG Have students fill in Sheet 5 LProblem Set.
with the status of components after the LOOP /LOCA EVENT.
Cfve students enough time so that each completes his sheet.
i If asked supply the following info.
Rx Power = 0% on APRM'9 Rx 1. eve 1 <TAF but increasinr DW Pressure = 30 PSIA - _ _ - _.
Transparency #4 Use Transparency #4 to lead discussion of POST LOOP /LOCA PLANT STATUS.
Transparency #4A (uncover 1 system at a time rather than present entire transparency at once).
Point out that RBSVS/CRAC Chillers.
3B & 4B have nac started since no Use Transparency #4A to show approximate service water flow exists in B loop.
load expected on EDG's af ter a LOOP /LOCA. Point out variations that could exist due to:
RX Bldg Exhaust Fan Alignment RBSVS/CRAC Chiller Alignment
' Assume emergency shutdown immediate Give Students a few coments to actions-are then completed.
conceptualize status of whole plant then ask.
Are any other operator actions warranted at this time?
Structure next portion of discussion based on response to question.
If Response is NO Ask what expected status of plant would be in 5 minutes.
If students do not identify fact heat loads are all from B components (EDC 102 loads) & RBSW is only available to loop A then supply additional info., i.e.:
Low Rx Bldg P
High RBCLCW Temp.
Ensure students realize that the present plant status provides no secondary containnent pressure control.
If Response is YES Once students identify the lack of Direct students suggestions to cooling to LOOP S components, ask SRO members of class for their them how they will correct the problem.
evaluation /conctirrence.
'!and out sheets 6 & 7 of TDI-EDG Problem set and have the sttidents romplete them.
ENSURE STUDENTS REALIZE THAT STARTING D Point out to standents that the RBSW PlTMP PRIOR TO SHIFTING LOADS FROM riinning RBSW pump status prior BUS 103 COULD CAUSE FDG 103 LOAD TO the LOOP /LOCA event vns not EXCEED 3300 MW.
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- n compliance with the RBSW operating procedure.
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LOOP /ATWAS Transparency #5 Use Transparency 5 to review status of plant prior to LOOP /ATWAS.
Handout sheet 8 of Have students fill in sheet 8 with the TDI-EDG problem set.
status of components after the LOOP /LOCA event.
Transparency #6 Use Transparency #6 to lead discussion of Post LOOP /ATWAS Plant Status.
(Uncover I system at a tine rather tdan present entire transparency).
Transparency 6A Use Transparency 6A to show approxinate load expected on EDG's after a LOOP /ATWAS.
Point out variations that could exist due to:
RBSVS/CRAC Chiller Alignment Rx Bldg Exhaust Fan Alignment-RBCLCW Pump Alignment If asked, supply the following info:
Have students review SP 29.024.01, Rx Power
_2%
29.023.01 & 29.023.03 and compile a Rx Level
-45".and increasing list of actions that must be taken DW Pressure 0.2 PSIC and increasing for this situation.
Compare list of actions compiled by class to these Attempt to verify Rx scran Identify failure to scram and initiate 29.024.01 Hand out sheet 9 of the TDI-EDG Problem Set and have the students complete it.
Manually scram Reactor a) Manual scram pushbuttons b) Mode switch to shutdown Trip Rx Recirc Pumps (N/A)
Comnence Suppressinn Pool Cooling Attempt to manunllv insert control rods (N/A)
Vent air fron scrnn air system Attempt to individually scram contrni rods Start either A or h SBLC Pump Terminate all injection into the RPV with the exception of CRD and RCIC or llPCI to maintain RPV level above TAP e
REDUCE EDG LOAD TO LESS THAN 3300KW SITUATION 1 LOOP /LOCA CONDITION WITH EDG 101 LOAD > 3300KW Transparency 7 & 7A Use Transparency 7 & 7A to show Plant Status after a LOOP /LOCA event.
Wait until at least one student identifies 101 EDG load > 3300KW Handout sheet 10 of problem set Have students PRIORITIZE running INSTRUCTOR SUPPLIED INFO:
loads as shown on Transparency 7 using Instructor supplied info.
RPV LEVEL - 20" and Steady RPV Pressure 100 PSIG DW Pressure 15 PSIG SP Temp 140'F SP Level +2" indicated DW Temp 205'F Wait until students have completed Students should select either sheet Jjl of the problem set and then ask the crew to decide what RBSW A or RBSVS/CRAC chiller 3A load they would shutdown.
since shutting down either load will still allow 2-100% capacity RBSW & RBSVS/CRAC Subsystems.
If students select any of the following loads for shutdown, discuss the potential problens associated with each choice.
- RBSVS A Failure of RBSVS B component could result in a total loss fo RBSVS until the A system is restarted.
- RBCLCW PUMP A No cooling to A Reactor Recire Pump Scal.- No Cooling to RPR Pumps A
& C for shutdown cooltrg node operat ion. -
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- CS PUMP A Point out that Level > TAF RPV level has NOT been is Primary assurance of restored to +12.5 o o adequate core cooling, maximum water injection to RPV is DESIRABLE.
- RHR PUMP A Also point out the fact that RPV level has NOT been initiation of SP cooling /SP Spray restored to +12.5 o o DW Spray will-cause some RHR flow maximum water injection to be diverted from the RPV.
to RPV is desirable.
- CRAC ACU 7A & FAN 25A Starting B components in this ACU 7B & Fan _25B would situation may cause EDG 102 have to be started prior load to exceed 3300 KW.
to shutting down the A components.
After appropriate corrective actions have been discussed to reduce EDG 101 1 cad to < 3300 KW, ask students what could have caused load to exceed 3300 KW.
- Have_ Students use 29.015.01 to determine possible causes of EDG load being greater than 3300 KW.
- failure of a load shed circuit.
- 4KV motor overload.
125% overload should cause a r.otor overload annunciator.
200% overload should cause the affected motor load to trip.
- 480V motor overload should cause thermal overloads to trip and cicar overload condition _
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7, LOOP /LOCA CONDITION WITH EDG 102 Ioad ) 3300 KW TRANSPARENCY 8'and 8A
- Use Transparency 8 and 8A to show Plant Status after a LOOP /LOCA event.
Wait until ate-least one ctudent identifies EDC 102 1 cad > 3300 KW.
Then
- Have students PRIORITIZE running loads Hand out sheet 11,of Problem as shown on Transparency 8 using Sat instructor supplied info:
INSTRUCTOR SUPPLIED INFO:
RPV Level +15" and rising RPV Pressure 100 PSIG DW Pressure 12 PSIG SP Temperature 135'F SP Level +2" indicated DW Temperature 200*F Wait until students have
- Students should select CRD Pump B completed sheet 11,of the _
since it should have tripped due to problem set and then ask the the LOCA condition.
crew to decide what load they would shut down.
' Stress the fact that all 3 EDC's
- Review status of systems, listed on should be evenly loaded during Transparency 8. required to bring the course of the accident.
Reactor to COLD SHUTDOWN condition.
RBSW - 1 Pump per RBSW Loop (A or C p_ B or D)
RBSVS/CRAC - 1 chiller per RBSVS/CRAC Loop.
(3A or 4A i 3B or 4B)
RBSVS - 1 RBSVS subsystem
( A or B )
Review. fact that C RBCLCW Pump RBCLCW - 1 RBCLCW Pump per loop, is locked out for ten minutes
( A or C 3,B or C)
.after a LOCA.
If restarted operator must ensure C Pump is valved into appropriate RBCLCW loop.
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CS - number of pumps dependent on size of break. Combination of CS &
RHR pumps should maintain RPV level between +12.5" and 54.5" RHR - used in conjunction with CS pumps to maintain RPV level between +12.5" and 54.5".
Also required for long term shutdown cooling as well as suppression pool cooling.
1 LOOP CONDITION WITH EDG 103 load ) 3000KW TRANSPARENCY 9 and 9A
- Use TRANSPARENCY 9 and 9A to show Plant Status during a LOOP event.
- Point out to students that it is approximately ten minutes into the LOOP event and that:
- repeated attempts have been made to start HPCI & RCIC.
- HPCI & RCIC can NOT be restarted.
- Watch Engineer has made the If asked, supply following plant decision that he will depressurize conditions:
the RPV & reflood using LPCI pumps as per the Level Restoration RPV level - 60" and decreasing procedure.
RPV Pressure controlled between 800 PSIC & 960 PSIC using a single SRV.
DW Pressure 0.7 PSIG SP Temperature ll5*F SP Level
+3" indicated DW Temperature 150*F A RHR loop in SP Cooling.
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j Ask students if the RPV can be depressurized with this lineup as
- Have students review Transparencies per the Level Restoration Procedure.
9 and 9A e
If students answer NO to above
- Review Level Restoration Procedure question:
with class to show that lineup is acceptable for depressurization.
If students answer YES to above
- Use Transparency 9B to show EDG question: TRANSPARENCY 9B loadings after the RPV has been depressurized.
Stress fact that as the RPV has
- If a LOCA signal is NOT received depressurized,the CS & RHR pumps during the blowdown A;340KW of load lined up for injection have gone on EDG 103 will NOT load shed.
from minimum flow to rated flow.
o o EDG load has increased.
Ask students what action they would take at this time?
- Students should decide to shutdown all loads that automatically load shed on a LOCA signal.
- 3 loads that automatically load shed must be shutdown in the 103 emergency switchgear room.
Point out that all automatically load shed loads can he disconnected
- 1) Lighting (227.2KW) from the Main Control Room using the Core Spray Manual Initiation
- 2) RPS Backup Transforners (20KW) pushbuttons.
- 3) 120V Nonenergency feeds (12KW)
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EDG Oualified Load Background Info:
3300 KW Oualified Load MESL = Maximum -Emergency Service Load Developed after review of MESL for various events.
MESL = Summation of all loads which will be simultaneously connected to an EDC.
MESL occurs for the LOOP /LOCA event.
Transparency 10 Use transparency 10 and point out the
,following:
During actual situation EDG load MESL = 3254 KW may be 400 KW less than used in ACTUAL IET = 2834 KW our classroom exampler.
Transparency 11. 12 Do same for transparencies 11 & 12.
Actual EDG surveillance test is conducted at 3300KW i 100KW MANUALLY CONNECTABLE LOADS Referred to in Containment H, Recombiner Control Emergency Procedure Not required until C 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after a LOOP /LOCA (DBA)
Each Recombiner sized to recombine amount of Ha generated by radiolysis.
If MSIV-LCS is required either MSIV LCS (Outboard System) inboard or outboard system can be run.
Placed in service 2: 20 minutes after a LOCA i' steam line pressure < 35 psig MSIV LCS (Inboard System)
Placed in service 2 20 minutes af ter a LOCA if steam line pressure < 35 psig Suppression Pool Pumpback Pump fhould not be started unless Rx Bldg Only required if water is Icaking into Flooding symptoms exist.
Secondary Containnent.
i.e., RilR/CS Pump packing Icak.
Caution statement added to SP 23.702.04, Rev. 4
. RPS MG Set desirable to regain power to at least 1 RPS bus in order to restore additional Main Control Room RPV level indications.
Referred to in Level Control
. CRD Pump A Emergency Procedure Can be restarted 60 seconds after LOCA signal received.
200 gpm insignificant when compared to 40,000 gpm reilood capacity of CS & RHR.
Referred to in Containment Control
. Drvvell Cooling Emergency Procedure Isolated on water side and electrically by a LOCA signal.
For LOCA situations DW cooling would be supplied via DW spray made of RHR as directed in Containment Control Emergency Procedure.
. Main Turbine & RFPT Auxiliaries Stress fact that these loads should All 3 turbines supplied with DC lube oil caly be considered after RPV and pumps for lube oil supply during Centainment are stabilized coastdown.
. Lighting Individual areas can be selectively EDG 101 Distribution Supplies Lighting lit by using 23.317.01 PNL X40-PNL-AC2 Supplies lighting for:
Main Control Room Energency Swg Rooms EDG Rooms EMD Floodlights Rx Recirc MG Set Rooms Screenwell Security Pnis EDG 103 Distribution Supplies Lighting Panels:
X40-PNL-ACI TSI-PNL-AC2 I'
i X40-PNL-ACI
- 1) Lights for all elevations in Turbine Bldg. and Radwaste Bldg.
- 2) Lighting for Main Control Room, EDG Rooms, Emergency Svgr Rooms. Relay Room, Computer Room.
T51-PNL-AC2
- 1) Lighting for all Rx Bldg elevations
. SBL'C & Auxiliaries Dilution effect of low pressure Of little use during LOCA conditon.
ECCS pumps.
. RWCU Pumps Referred to in Rapid Depressurization With LOCA signal present RBCLCW isolated Emergency Procedure from RWCU - non-gen Hx's.
Of little value for depressurization
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List of Transparencies 1
Loss of Offsite Power - Plant Status prior to 2
Loss of Offsite Power - Plant Status after 2A Loss of Offsite Power - EDG Load after 3
LOOP /LOCA - Plant Status prior to 4
LOOP /LOCA - Plant Status after 4A LOOP /LOCA - EDG Load after
}
5 LOOP /ATWAS - Plant Status prior to 6
LOOP /ATWAS - Plant Status after 6A LOOP /ATWAS - EDG Load after 7
LOOP /LOCA Plant Status af ter (HPCI & RCIC Inop) 7A LOOP /LOCA EDG 101 LOAD 3300KW fl LOOP /LOCA Plant Status after a
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8A LOOP /LOCA EDG 102 Load 3300KW s
9 LOOP Plant Status after (HPCI & RCIC Inop) 9A LOOP EDG Loads Prior to Depressurization l
9B LOOP EDC 103 Load 3300KW After Depressurization I
0 10 LOOP /LOCA Load Profile - EDC 101 11 LOOP /LOCA Load Profile - EDG 102 f
12 LOOP /LOCA Load Profile - EDC 103 __
b TRANSPARENCY l LOSS OF 0FFSITE POWER-PLANT STATUS PRIOR TO A LOSS OF OFFSITE POWER HAS OCCURRED WITH THE REACTOR OPERATING AT 100% POWER. PRIOR TO THE LOSS OF OFFSITE POWER THE STATUS OF SNPS PLANT SYSTEMS WAS AS FOLLOWS:
SYSTEM STATUS RPS ALL 8 SCRAM SOLEN 0ID POWER LIGHTS ON NS4 NO IS'OLATION SIGNAL PRESENT SRV's CLOSED CONDENSATE PUMPS A & B RUNNING RFP's A & B RUNNING l
CRD PUMPS A RUNNING RBSW PUMPS B & C RUNNING RBSVS/CRAC CHILLERS 3A & 3B RUNNING 1
RBSVS FILTER TRAINS NONE RUNNING RBCLCW PUMPS A & B RUNNING (C LINED UP TO A LOOP)
CORE SPkAY PUMPS A RUNNING FOR SURVEILLANCE TEST B NOT RUNNING RHR PUMPS NONE RUNNING RWCU PUMPS A RUNNING CRAC SYSTEM ACU 7A RUNNING BOTH CRAC BOOSTER FANS NOT RUNNING HPCI DISASSEMBLED FOR MAINTENANCE RCIC FAILED TO START DURING SURVEILLANCE TESTING EDC's ALL 3 IN STAND BY 18 -
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. 1 TRANSPARENCY 2 LOSS OF OFFSITE POWER-PLANT STATUS AFTER
-SYSTEM STATUS RPS FULL SCRAM SIGNAL (ALL RODS IN)
NS4 FULL ISOLATION SRV's LOWEST SET SRV's CYCLING TO MAINTAIN RX PRESS,URE CONDENSATE PUMPS NONE RUNNING RFP's NONE RUNNING CRD PUMPS A RUNNING RBSW PUMPS A & B & C RUNNING RBSVS/CRAC CHILLERS 3A & 3B & 4A & 4B RUNNING RBSVS FILTER TRAINS A & B RUNNING RBCLCW PUMPS A & B RUNNING CORE SPRAY PUMPS NONE RUNNING RHR PUMPS NONE RUNNING RWCU PUMPS NONE RUNNING CRAC SYSTEM ACU 7A RUNNING "A" BOOSTER FAN RUNNING EDG's 101 & 102 & 103 RUNNING AT 4160V
& 60 HERTZ
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.i TRANSPARENCY 3 LOOP /LOCA PLANT STATUS PRIOR TO A LOOP /LOCA HAS OCCURRED WITH THE REACTOR OPERATING AT 100% POWER.
PRIOR TO THE LOOP /LOCA THE STATUS OF SNPS PLANT SYSTEMS WAS AS FOLLOWS:
SYSTEM STATUS RPS ALL 8 SCRAM SOLEN 0ID POWER LIGHTS ON NS4 NO ISOLkTION SIGNAL PRESENT SRV's.
CLOSED N
CONEENSATE PUMPS A & B RUNNING
'l RFP's A & B RUNNING l,l 2
CRD PUMPS A RUNNING 1*t
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RBSW PUMPS A & C RUNNING d
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B DISASSEMBELD FOR MAINTENANCE RBSVS/CRAC CHILLERS 3A & 3B RUNNING I'
RBSVS FILTER TRAINS NONE RUNNING
'j RBCLCW PUMPS A & B RUNNING (C LINED UP TO A LOOP)
CORE SPRAY PUMPS A RUNNING FOR SURVEILLANCE TEST B NOT RUNNING RHR PUMPS NONE RUNNING RWCU PUMPS A RUNNING CRAC SYSTEM ACU 7A RUNNING BOTH CRAC BOOSTER FANS NOT RUNNING HPCI DISASSEMBLED FOR MAINTENANCE RCIC FAILED TO START DURING SURVEILLANCE TESTING EDC's ALL 3 IN STAND BY
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TRANSPARENCY 4 LOOP /LOCA - PLANT STATUS AFTEP.
SYSTEM STATUS RPS FULL SCRAM SIGNAL - ALL RODS IN
. NS FULL ISOLATION SRV's CLOSED CONDENSATE PUMPS NONE RUNNING RFP's NONE RUNNING CRD PUMPS NONE RUNNING l
'RBSW PUMPS C PUMP RUNNING RBSVS/CRAC CHILLERS 3B, 4A, 4B RBSYS FILTER TRAINS B RUNNING RBCLCW PUMPS B RUNNING CORE SPRAY PUMPS B RUNNING RHR PUMPS B & C & D RUNNING RWCU PUMPS NONE RUNNING CRAC ACU 7B RUNNING BOOSTER FAN 25B RUNNING EDG's 102 & 103 Rt'NNING AND SUPPLYING EMERGENCY BUSES 101 FAILED TO START AND CAN NOT BE STARTED PANUALLY RCTC ISOLATED
. HPCI ISOLATED RX BLDG EXHAUST FANS C RUNNING 4
TRANSPARENCY 4A S
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TRANSPARENCY 5 LOOP /ATWAS PLANT STATUS PRIOR TO LOOP /ATWAS HAS OCCURRED WITH THE REACTOR OPERATING AT 100% POWER.
PRIOR TO THE LOOP /ATWAS THE STATUS OF SNPS PLANT SYSTEMS WAS AS FOLLOWS:
SYSTEM STATUS RPS ALL 8 SCRAM SOLENOID POWER LIGHTS ON NS4 NO ISOLATION SIGNA 1 PRESENT SRV's CLOSED CONDENSATE PUMPS A & B RUNNING RFP's A & B RUNNING CRD PUMPS A RUNNING RBSW PUMPS B & C RUNNING RBSVS/CRAC CHILLERS 3A & 4B RUNNING RBSVS FILTER TRAINS NONE RUNNING 3-RX BLDG EXHAUST FANS A&B RUNNING RBCLCW PUMPS A & B RUNNING (C LINED UP TO A LOOP)
CORE SPRAY PUMPS NONE RUNNING RHR PUMPS C RHR PUMP RUNNING FOR SURVEILLANCE TEST RWCU PUMPS A RUNNING CRAC SYSTEM ACU 7A RUNNING BOTH CRAC BOOSTER FANS NOT RUNNING HPCI STANDBY RCIC DISASSEMBLED FOR MAINTENANCE EDG's ALL 3 TN STAND BY t
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i TRANSPARENCY 6 LOOP /ATWAS PLANT STATUS AFTER SYSTIM STATU3 RPS FULL SCRAM SIGNAL - APPROXIMATELY is RODS DO NOT CO FULL IN l
NS4 FULL ISOLATION SRV's 1 SRV,OPEN TO CONTROL RX PRESSURE CONDENSATE PUMPS NONE RUhTING RFP's NONE RUNNING l
CRD PUMPS A RUNNING RBSW PUMPS A & B & C RUNNING RBSVS/CRAC CHILLERS 3A, 3B, 4A, 4B RUNNING RBSVS FILTER TRAINS A & B RUNNING RX BLDG EXHAUST FANS B RUNNING RBCLCW PUMPS A & B RUNNING CORE SPRAY PUMPS NONE RUNNING RHR PUMPS NONE RUNNING RWCU PUMPS NONE RUNNING CRAC SYSTEM ACU 7A RUNNING BOOSTER FAN 25A RUNNING EDC's 101 & 102 & 103 RUNNING AT 4160V
& 60 HERTZ HPCI RUNNING RCIC DISASSEMBLED FOR MAINTENANCE l.
2 I
TRANSPARENCY 6A t
t T
I l
l.l 1
l 1
4 e
4 1
)
i.'
i 55 -
l 55 -
55 t
s 50 -
50 _
50 -
t i
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i 40 --
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E 40 _-
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I
=
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a 30 30 _
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E D G 101 EDG 103 EDG 102 KW KW KW l
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6
(
TRANSPARENCY 7 EDG101 Load >3300KW LOOP /LOCA PLANT STATUS APTER ( HPCI & RCIC INOP)
A LOOP /LOCA has occurred with the Reactor operating at 100% power.
Immediately after the LOOP /LOCA the status of SNPS plant systems is as follows:
~ SYSTEM STATUS RPS Full Scram Signal - all rods in NS'
+ 12.5" RPV level isolation
- 38" EPV level isolatien
+ 1.69 psig DW Pressure isolation SRV's Clased Condensate Pumps None Running RFP's None Running CRD Pumps None Running RBSW Pumps A & B & C Running RBSVS/CRAC Chillers 3A & 3B & 4A E 4B Running RBSVS Filter Trains A & B running i
RBCLCW Pumps A & B running Core Spray Pumps A & B running RHR Purps A & B & C & D Running RWCU Pumps None Running CRAC Systen ACU 7A running CHAC Boor.ter Fan 25A Running HPCI Isolated RCTC ino1ated
's All 3 running FDG 101 load 3450 EW EDG 102 load 3250 KW FDG 103 load 3200 KW b
l j
TRANSPARENCY 7c.
s 55 -
55 55 -
M M.a Emm.
)
50 -
50 m
.mu.
50 -
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M m
m
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M M
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30 30 -
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=
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E D G 101 EDG 103 EDG 102 KW KW KW l
l i
I I
i TRANSPARENCY 8 EDG 102 load > 3300 KW LOOP /LOCA PLANT STATUS AFTER A LOOP /LOCA has occured with the reactor operating at 100% power.
Immediately after the LOOP /LOCA the status of SNPS plant system is as follows:
SYSTEM
' STATUS RPS Rull Scram Signal - All rods in NS
+12.5" RPV level isolation
- 38" RPV level isolation
+ 1.69 PSIC DW Pressure isolation SRV's Closed Condensate Pumps None Running RFP's None Running CRD Pumps B Running RBSW Pumps A,B & C Running RBSVS/CRAC Chillers 3A,3B,4A & 4B Running RBSVS Filter Trains A & B Running RBCLCW Pumps A & B Running Core Spray Pumps A & B Running RHR Pumps A,B,C & D Running RWCU Pumps None Running CRAC System Acti 7B Running CRAC Booster Fan 25B Running HPCI Isolated RCIC Ir.olated EDG's All 3 Running EDC 102 Load 3450 }'W
TRANSPARENCY 9 EDG 103 load > 3300 KW 1
1 F
LOOP PLANT STATUS AFTER (HPCI & RCIC INOP)
A LOOP has occured with the Reactor operating at 100% power. Approximately ten minutes into the event, the Watch Supervisor determines that the running CRD pump will NOT maintain RPV level > TAF, and directs that the Reactor be depressurized to restore level using the CS and RHR pumps. Just prior to Depressurizing, the plant status is as follows:
SYSTEM STATUS RPS,
Full Scram Signal - All rode in' i
I NS
+12.5" RPV level isolation
-38" RPV level isolation
+1.69 PSIG DW pressure isolation SRV's Closed Condensate Pumps None Running RFP's None Running i
CRD Pumps A Running RBSW Pumps A,B & C All Running RBSVS/CRAC Chillers 3A,3B & 4A Running RBSYS Filter Trains A & B Running RBCLCW Pumps A & B Running Core Spray Pumps B Running l
RHR Pumps C & D Running RWCU Pumps None Running i
CRAC System ACU 7A Running HPCI CRAC Booster for 25A Running RCIC Isolated EDG's All 3 Running EDG 101 load EDG 102 load l
EDG 103 load l
26 -
L
TRA9iSPARENCY 8A 4-9 l
55 55 -
55 -
l 50 0 50 :
50 :
i 40 40 -
4 0 --
e t
4 e
24 30 30 -
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9 20 20 -
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EDG 101 EDG 103 EDG 102 KW KW KW
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mas EDG101 EDG 103 EDG 102 KW KW KW
EDG 1 1 LOOP /LOCA LOAD P:!OFILE TRANSPARENCY 10 3300 RADIATION teONITORING UPS POWER TO COMPUTER HEAT TRAONG ECCS LOOP LEVEL PUMP SEQJRITY LISHTING SMETY RELATED VENTL.
3000-m ps5TRUMENT POWER ACTUALIETe1854 KW o
RSSVS A ROSYS/CAAC-CHILLER ANO asnra inq:g3 2500-RSCLCW PUMP A ROSW PUssP A 2000-1500-CORE SPRAY PUtdP A
~
l 1000-MANueLLY CONECTED LOADS f.
n r0ENTFIED M PROCEDURES AFTER RPV LEVEL /
CONTANMENT CONTROL SBLC AUX RHR PUMP A r
500-ano MAWALLY CONECTED LICMTING LPCI MG SET lli a narn IDENTFIED IN PROCEcuRES CONCURRENT ANO WITH RPV LEVEL. /
WN CONTA#esENT CONTROL DW COOLING SP PUMP 8 ACK CR0 A M2 REC 0 heiner MSN LCS yps ua,7 5
o
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d
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4 EDG 102 LOOP /LOCA LOAD PROFILE TRANSPARENCY 11 1
3300 3209
~
RADIATION MONITORING HEAT TRACING ECCS LOOP LEVELPUMP M
12OINSTRAENT POWER f
3ooo.
g7go ACTUAL lETe 2807MW RSSVS 8 RBSVS/CRAC
}
CHILLER 38 t
ANO AUXILIARIES l4
- 2500, B
RSCLCW PUMP 8 R8SW PUMP 8 2000-l
"~
2,%
4 CORE SPRAY 1500-pyyp g p-L
=
li',
i 9
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1000-
.i MARIALLY COMECTED (i!
LOADS (DENTFIED IN PRO.
CE004ES AFTER RPVLEWL/
CONTAMENT
..g 4
RHR PUMP 8 CONTROL sg 500 AND y
LPCI MG SET 112 MMUALLY COMECTED mT 8 RFPT LonD5100nFED IN PRO
- Auxa24 VDc CEDuqES CONCURRENT nacua
?~
wffH RPV LEVEL /
3 gym m Dw COOLING y
CRD 5 f,g H2 RECOMBINER I ',
M3rV LCS mas un trT a O
s tib
-4 P1
,J
EDG 103 LOOP / LOCA LGAD PHurlLE TRANSPARENCY 12
,n 3300 5
3226 UPS POWER SECURITY LIGHTING i.
12OV INSTRLAENTPOWU ACTUAL lET=3072KW 4
SAFETY RELATED.*
-~
g'. RSSW PUMP D WAS h
VENTILATION 3000-ALSO AUTO STARTED R8 S(C W M DURING THE IET.
RSSVS/CRAC CHILLERS 4AS48 s
AND AUXILIARIES y
I h
2500-ROSW f':
PUMP C
?
2000-t r-h 150 0-I f
P I
RHR PUMPS
?
CSD
/
1000-E 4
ll 3 A S 183 8
'~
M ANUALLY CONNECTED LOADS EENTFIED IN PRO-CEDURE AFTER RPVLEVEL/
500-CONTAINMENT CONTROL
.4 h
LIGHTING MAMJALLY CONfECTED LDADS DENT 1FIED IN PRO-i*:
CEDURES CONCURRENT MAIN TURDNC AUX W1TH RPV LEVEL /
[
CONTAINMENT CONTROL RwCU A O
mesam vrau.
o j
i ATTACHMENT 6 SNPS Revised Procedures
LIST OF PROCEDURES 1.
- SP 29.015.01, Rev. 9 2.
Level Control
- SP 29.023.01, Rev. 5 3.=
Emergency _ Shutdown ~
- SP 29.010.01, Rev. 4 4.
Containment Control
- SP 29.023.03, Rev. 9 5.
-Emergency Diesel. Generators
- SP 23.307.01, Rev. 12 6.
Main Control Room Conduct
- SP 21.004.01', Rev. 8 of Personnel