201.35 Non-Class Diesels Flashcards
- LOT 201.35 Non-Class Diesels*
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Function of BOP Diesel
Provides a backup power source to selected loads to protect the Turbine Generator and Steam Generator Feed Pump Turbines from damage. Aids in the orderly shutdown of the plant
- LOT 201.35 Non-Class Diesels*
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Function of LTG Diesel
Provides a backup power source to the Plant Security and the Security Lighting Systems.
- LOT 201.35 Non-Class Diesels*
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Function of NTF Diesel
Provides a backup power source for the Control Room Simulator, the NTF for monitoring equipment and emergency lighting.
- LOT 201.35 Non-Class Diesels*
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Function of TSC Diesel
Provides a backup power source to the Chemical and Volume Control System Positive Displacement Charging Pump and to the TSC to maintain monitoring capability.
- LOT 201.35 Non-Class Diesels*
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Function of FLEX Diesels
Within 8 hours following an Extended Loss of AC Power
(ELAP) the FLEX Diesel Generator will be running providing power to support SG make-up, RCS make-up SFP make-up and other functions in support of STP’s FLEX strategies
- LOT 201.35 Non-Class Diesels*
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BOP Diesel major loads
Alt power source for MCC 1G5
Important for safe turbine shutdown
MT Turning Gear Motor and Oil Pump
Air Side Seal Oil Pump
Bearing Oil Lift Pump
SGFWPT Turning Gear Motors and Oil Pumps
IA Compressor (#14)
IA Emergency Cooling Water Pump
250 VDC Battery Charger (TGB)
125 VDC Battery Charger (TGB)
TGB Swgr Room and Battery Room HVAC
BOP DG Ventilation Fan
120/208 VAC DP Panel (DPG534)
- LOT 201.35 Non-Class Diesels*
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LTG Diesel major loads
- Connected to 480 VAC 12K3
- Security Lighting
- Intake Structure Lighting
- Lighting Building UPS
- EAB UPS
- Lighting DG HVAC
- Location: South of Unit 1 in the Lighting DG Building
- LOT 201.35 Non-Class Diesels*
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NTF Diesel Major Loads
- NTF Simulator
- NTF 480 VAC DP
- Motor-Driven Fire Pump House
- Location: Southwest corner of NTF
- LOT 201.35 Non-Class Diesels*
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Flex Diesel major loads
Connected to 480 VAC DP 1000
CVCS Positive Displacement Pump
Emergency backup to the RCB Equip Hatch Hoist if the TSC DG is unavailable during a loss of offsite power.
FLEX RCS Makeup Pumps
FLEX SG Makeup Pumps
Load Center E1C2(E2C2)
Load Center E1A2(E2A2)
FLEX SFP Makeup Pump
Various Lighting Transformers
- LOT 201.35 Non-Class Diesels*
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TSC Diesel major loads
Connected to MCC 1G8 through LC 1W1
- CVCS Positive Displacement Pump
- RCB Equip Hatch Hoist
- TSC Chilled Water System
- TSC, and Main Computer Room HVAC
- ICS Computer
- Plant Computer, 125 and 48 VDC Batt Chrg (EAB)
- FHB, and IVC Essential Lighting Transformers
- Emergency Transformer Cooling Fans
- FHB PASS AHU Fan
- TSC DG Auxiliaries
- LOT 201.35 Non-Class Diesels*
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Design Basis for NTF/LTG/BOP/TSC Diesels
None have Reactor Safety Related Functions
Quality class 9
2 stroke, 12 cylinder, 700 KW
4 stroke, 16 cylinder, 1200 KW (TSC only)
Each has own battery and charger for control power
- LOT 201.35 Non-Class Diesels*
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Design Basis for FLEX Desiel
Supplies B/U power to Safety Related Equipment for Beyond Design Basis Accidents
4 stroke, 16 cylinder, 1000 KW
Each has own battery and charger for control power
- LOT 201.35 Non-Class Diesels*
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Auto Starts for Non-Class Diesels
Auto Start on buss UV (undervoltage signal) 2 seconds after signal is received. Will accept loads after 15 secs.
(No auto on FLEX)
- LOT 201.35 Non-Class Diesels*
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Auto Start Sequence
(Non-Class Diesels)
Start signal will also trip normal supply breaker.
Auto start blocked if normal feeder breaker trips on overcurrent
When at rated speed, Hz & voltage generator breaker will close on bus
Block (open contact) signal prevents reclosure of normal power breaker
- LOT 201.35 Non-Class Diesels*
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BOP Diesel Trips
Overspeed
Low Lube Oil Pressure
High Coolant Temp
Generator Overcurrent
HZ/Volts not w/in limits (U1)
- LOT 201.35 Non-Class Diesels*
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LTG Diesel Trips
Overspeed
Low Lube Oil Pressure
High Coolant Temp
Generator Overcurrent
HZ/Volts not w/in limits
- LOT 201.35 Non-Class Diesels*
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NTF Diesel Trips
Overspeed
Low Lube Oil Pressure
High Coolant Temp
Generator Overcurrent
HZ/Volts not w/in limits
- LOT 201.35 Non-Class Diesels*
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TSC Diesel Trips
Overspeed
Low Lube Oil Pressure
High Coolant Temp
Generator Overcurrent
Loss of Excitation
Phase Differential
- LOT 201.35 Non-Class Diesels*
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FLEX Diesel Trips
Overspeed
Low Lube Oil Pressure
High Coolant Temp
Low Coolant Level
- LOT 201.35 Non-Class Diesels*
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Operation of the 3-position Engine Control Switch
(BOP, LTG and NTF diesels only)
- Hand(Start) - initiates a manual start
- Off – Stops the DG
- Auto – will auto start and load upon loss of bus voltage
- Manual Auto to Bypass Pushbutton – pushing button allows running diesel to shift to auto position without shutting down as a result of going through the off position (works from Auto to Hand (Start) also
