ML21125A294
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FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-1 Revision 25 Page 1 of 1 SWITCHYARD SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Breakers - 345 kV Nominal
- 3,000 A Continuous
- 63,000 A Momentary Insulators - 1,050 kV BIL Main Bus - 3,000 A Bay Bus - 2,000 A Disconnect Switches - 345 kV Nominal
- 2,000 A Continuous
- 70,000 A Momentary
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-2 Revision 21 Page 1 of 1 4,160 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Bus - 2,000 A Continuous Ratings Incoming Breakers - 2,000 A, 350 MVA Interrupting Feeder Breakers - 1,200 A, 350 MVA Interrupting Station Power Transformer 1-1 4.16-4.16 kV, 22.5/25.2 MVA, 55°/65°C 3-Winding Connected Delta-Wye-Wye Start-Up Transformers 1-1, 1-3, - 345-13.2-4.16-4.16 kV, 22.5/25.2 MVA, 4-Winding Connect Wye-Wye-Wye With 55°/65° a Delta Tertiary Station Power Transformer 1-3, - 345-2.4-4.16-4.16 kV, 4-Winding Connected Wye-Wye-Wye 22.5/25.2 MVA,55°/65°C With a Delta Tertiary
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-3 Revision 30 Page 1 of 1 2,400 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Safeguard Transformer 1-1 - 354-2.52 kV, 3 Ph, 60 Hz, 10.5 OA, 2-Winding, Wye Grounded-Delta 13.125 Future FA, 65°/65°C Automatic Load Tap Changer Station Power Transformer 1-2 2.4 kV, 3 Ph, 60 Hz, 8/9 MVA OA, 2-Winding, Delta-Delta 55°/65°C Start-Up Transformer 1-2 - 345-2.52 kV, 3 Ph, 60 Hz, 2-Winding, Wye Grounded-Delta 10.5 MVA ONAN, 55°C Automatic Load Tap Changer Bus - 2,000 A Continuous Rating Incoming Breakers - 1,200 A Continuous, 250 MVA Interrupting Feeder Breakers - 1,200 A Continuous, 150 MVA Interrupting Safeguard Bus - 3,000 A Continuous Rating Incoming Breakers - 3,000 A Continuous, 350 MVA Interrupting
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-4 Revision 30 Page 1 of 4 480 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS 480 V Load Centers 11, 12, 13, 14, 15, 16 Transformers - 750 kVA AA, 3 Ph, 60 Hz, 2,400-480 V Bus - 1,000 A Continuous, 50,000 A RMS Symmetrical (Load Centers 11, 12, 13, and 14)
- 1,200 A Continuous, 25,000 A Asymmetrical (Load Centers 15 and 16)
Load Center Feeder - 22,000 A RMS Symmetrical (Load Centers 11, Breakers - Interrupting 12, 13 and 14)
Current - 18,000 A RMS Symmetrical (Load Centers 15 and 16) 480 V Motor Control Centers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Horizontal Bus - 600 A Continuous, 25,000 A RMS Symmetrical Vertical Bus - 300 A Continuous, 25,000 A RMS Symmetrical Molded Case Breakers - - 14,000 A RMS Symmetrical Interrupting Current 480 V Load Center 17 Transformer - 2,000 kVA AA, 3 Ph, 60 Hz, 4,160-480/277 V Bus - 3,200 A Continuous, 65,000 A RMS Symmetrical Load Center Feeder - 50,000 A RMS Symmetrical Breakers - Interrupting Current 480 V Load Centers 19, 20 Transformer - 750/1,000 kVA AA/FA, 3 Ph, 60 Hz, 2,400-480 V Bus - Equal to Capacity of Largest Breaker
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-4 Revision 30 Page 2 of 4 480 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Load Center Feeder - 14,000 A RMS Symmetrical (MCC 21 and 23)
Breakers - Interrupting 22,000 A RMS Symmetrical (MCC 22 and 24)
Current 480 V Motor Control Centers 21, 22, 23, 24 Horizontal Bus - 600 A Continuous, 42,000 A RMS Symmetrical Vertical Bus - 300 A Continuous, 42,000 A RMS Symmetrical Molded Case Breakers - - 10,000 A RMS Symmetrical Interrupting Current 480 V Motor Control Centers 25, 26 Horizontal Bus - 600 A Continuous, 42,000 A RMS Symmetrical Vertical Bus - 600 A Continuous, 42,000 A RMS Symmetrical Molded Case Breakers - - 25,000 A RMS Symmetrical Interrupting Current 480 V Load Centers 77, 78 Transformers - 500 kVA, 3 Ph, 60 Hz, 2,400-480 V Bus - Equal to Capacity of Largest Circuit Breaker Load Center Feeder - 22,000 A RMS Symmetrical Breakers - Interrupting Current 480 V Motor Control Centers 79, 80, 81, 82, 87 Horizontal Bus - 600 A Continuous, 25,000 A RMS Symmetrical (MCC 79, 80, 81, 82)
Vertical Bus - 300 A Continuous, 25,000 A RMS Symmetrical (MCC 79, 80, 81, 82)
- 600 A Continuous, 35,000 A RMS Symmetrical (MCC 87)
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-4 Revision 30 Page 3 of 4 480 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Molded Case Breakers - - 14,000 A RMS Symmetrical (MCC 79, 80, 81, 82)
Interrupting Current - 35,000 A RMS Symmetrical (MCC 87) 480 V Load Centers 71, 72, 73, 74, 75, 76 (Cooling Towers)
Transformers - 1,500 kVA, 3 Ph, 60 Hz, 4,160-480 V Bus - 2,000 A Continuous, 42,000 A RMS Symmetrical Load Center Feeder - 42,000 A RMS Symmetrical Breakers - Interrupting Current 480 V Load Centers 90, 91, 200 Transformers - 750 kVA, 3 Ph, 60 Hz, AA, 2,400-480 V Bus - 1,200 A Continuous, 50,000 A RMS Symmetrical (Load Center 200)
- 1600 A Continuous (Load Centers 90 and 91)
Load Center Feeder - 22,000 A RMS Symmetrical Momentary (Load Breakers - Interrupting Centers 90 and 91)
Current
- 30,00 A RMS Symmetrical Interrupting (Load Centers 90 and 91)
- 50,000 A RMS Symmetrical (Load Center 200) 480 V Motor Control Centers 92, 93, 94, 95, 96, 97, 99 Horizontal Bus - 600 A Continuous, 42,000 A Symmetrical Vertical Bus - 300 A Continuous, 42,000 A Symmetrical Molded Case Breakers - - 14,000 A RMS Symmetrical
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-4 Revision 30 Page 4 of 4 480 VOLT SYSTEM RATINGS AND CONSTRUCTION OF COMPONENTS Interrupting Current
- 22,000 A RMS Symmetrical (Motor Control Center 99)
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-5 Revision 34 Page 1 of 1 DC AND PREFERRED AC SYSTEMS RATINGS AND CONSTRUCTION OF COMPONENTS Main Bus (D-10, D-20)
Horizontal Bus Continuous: 600 amps Short Circuit: 22,000 RMS symmetrical amps Vertical Bus Continuous: 300 amps Short Circuit: 22,000 RMS symmetrical amps Main Bus Breakers Minimum Interrupting Current of (D-10, D-20) 20,000 amps at 125 Vdc DC Panel Fuses w/Disconnects Minimum Interrupting Current of (D-11-1, D-11-2, D-21-1 20,000 amps at 125 Vdc D-21-2, D-11A, D-21A)
AC Panel Breakers Minimum Interrupting Current of (Y-10, Y-20, Y-30, Y-40) 10,000 RMS symmetrical amps at 120 Vac Battery Chargers 200 A Continuous Output (D-15, D-16, D-17, D-18)
Inverters 6 kVA Continuous Output (E-6, E-7, E-8, E-9)
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-6 Revision 32 Page 1 of 1 DIESEL 1-1 SEQUENCE START Time(c) Nameplate (Seconds) Service hp 10 Miscellaneous 480 V Loads(a) 290 KVA 12 Boric Acid Pump P56B 30 Charging Pump P55C 75 Containment Cooler Recirc Fan V4A 75 Containment Spray Pump P54B 250 16 HP Safety Injection Pump P66B 400 20 Service Water Pump P7B 350 23 LP Safety Injection Pump P67B 400 29(d) Containment Spray Pump P54C 250 33 Component Cooling Pump P52A 300 50 Component Cooling Pump P52C (If Pumps P52A and P52B fail to start) 55(b) Auxiliary Feedwater Pump P8A 450 65 Control Room Air Handling Unit Fan V95 25 (a) Per EA-ELEC-LDTAB-005 Rev. 10, Table E.1 @ Time Zero.
(b) Sequencer set point does not include five-second delay due to Auxiliary Feedwater Initiation Control Logic (Section 7.4).
(c) These times include 10 seconds for diesel start and generator breaker closing.
(d) Sequencer set point does not include nominal fifteen-second delay of pump automatic start following receipt of Containment High Pressure Signal (Section 6.2.2.3).
FSAR CHAPTER 8 - ELECTRICAL SYSTEMS TABLE 8-7 Revision 32 Page 1 of 1 DIESEL 1-2 SEQUENCE START Time(c) Nameplate (Seconds) Service hp 10 Miscellaneous 480 V Loads(a) 276 KVA 12 Boric Acid Pump P56A 30 Charging Pump P55A 100 Containment Cooler Recirc Fan V3A 75 Containment Spray Pump P54A 250 16 HP Safety Injection Pump P66A 400 20 Service Water Pump P7A 350 23 LP Safety Injection Pump P67A 400 29 Containment Cooler Recirc Fans V1A and V2A 150 Charging Pump P55B (If Pumps P55A and P55C fail to start) 75 33 Component Cooling Pump P52B 300 36 Service Water Pump P7C 350 55(b) Auxiliary Feedwater Pump P8C (If Pump P8A fails to provide sufficient flow) 400 65 Control Room Air Handling Unit Fan V96 25 (a) Per EA-ELEC-LDTAB-005 Rev. 10, Table E.2 @ Time Zero.
(b) Sequencer setpoint does not include delays due to Auxiliary Feedwater Initiation Control Logic (Section 7.4).
(c) These times include 10 seconds for diesel start and generator breaker closing.