PCIS isolations

  1. (PCIS – SM) – Torus Water Cleanup
    • HV-4680 & 4681 Suction valves/
    • HV-4652 & 4679 Return valves
    • .
    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • A - HV-4680 & 4652
    • B - HV-4681 & 4679
  2. (PCIS – SM) – TIP System Purge
    SV-J004A1-5, HV-5161

    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad

    • NS4 & PCIS Channel =
    • A - NS4 --> SV-J004A1-5
    • D - PCIS --> HV-5161
  3. (PCIS – SM) – CACS D/W & Torus Purge Supply & Exhaust & N2 Purge
    • HV-4956, 4979, 4951, 4950, 4952, 4980, 4958, 4963, 4962, 4964, 4974, 4978
    • .
    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • A - HV-4956, 4952, 4958, 4964
    • D - HV-4979, 4951, 4950, 4980, 4963, 4962, 4974, 4978
  4. (PCIS – SM) – DWEDS & DWFDS discharge to R/W
    • HV-F003 & F004 DWFDS /
    • HV-F019 & F020 DWEDS
    • .
    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • B - HV-F004 & F020
    • D - HV-F003 & F019
  5. (PCIS – SM) – RCPB Leak Detection System sampling and return
    • (DLD Noble Gas Skid)
    • HV- 5018, 4953, 4957, 4981

    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad

    • PCIS Channel =
    • A - HV-5018, 4957
    • D - HV-4953, 4981
  6. (PCIS – SM) – H2/O2 Analyzers sampling and return
    • HV-4955A, 4983A, 4984A, 5019A, 4955B, 4983B, 4984B, 5019B, 4965A, 4959A, 4965B, 4959B, 4966A, 5022A, 4966B, 5022B
    • .
    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • A - HV-4955A, 5019A, 4959A, 4966A
    • B - HV-4955B, 5019B, 4959B, 4966B
    • C - HV-4983A, 4984A, 4965A, 5022A
    • D - HV-4983B, 4984B, 4965B, 5022B
  7. (PCIS – SM) – Containment H2 Recombiner supply and return
    • HV-5050A / B, 5052 A / B, 5053 A / B, 5054 A / B
    • .
    • -38" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • A - HV-5050A, 5054A
    • B - HV-5054B
    • C - HV-5052A, 5050B, 5053A
    • D - HV-5052B, 5053B
  8. (PCIS – SM) – Chilled Water Supply and Return to the D/W Coolers
    • HV-9531A1-A4 & 9531B1-B4
    • .
    • -129" RWL
    • 1.68 # D/W press
    • .
    • Core Spray Channel =
    • C - HV-9531B1-B4
    • D - HV-9531A1-A4
  9. (PCIS – SM) – RACS cooling water supply and return
    • HV-2553, 2554, 2555, 2556
    • .
    • -129" RWL
    • 1.68 # D/W press
    • .
    • Core Spray Channel =
    • B - HV-2553 & 2555
    • D - HV-2554 & 2556
  10. (PCIS – SM) – PCIG supply and return
    • HV-5152 A / B, 5126 A / B, 5147, 5148, 5154, 5155, 5162
    • .
    • -38" RWL (HV-5154, 5155, 5156A/B only)
    • -129" RWL
    • 1.68 # D/W press
    • 1 x 10-3 uCi/cc Rx Bldg Hi-Hi rad
    • .
    • PCIS Channel =
    • A - HV-5152A, 5148, 5155
    • B - HV-5126B
    • C - HV-5126A, 5147
    • D - HV-5152B, 5162, 5154
  11. (PCIS – SM) – CRD to Recirculation Pump Seals
    • HV- 3800 A & B
    • .
    • -129" RWL
    • 1.68 # D/W press
    • .
    • Core Spray Channel = D
  12. (PCIS – SM) – *There are NO Inboard Isolations from ‘B’ Channel.
    *There are NO Inboard Isolations from ‘B’ Channel.
  13. (PCIS – SM) – Lose on -38” RWL Level 2
    • Torus Water Cleanup
    • Drywell Equipment Drains
    • PCIG Tip Purge
    • Rx Coolant Leak Detection
    • Containment Atm. Control & Drywell Purge
    • H2/02 Analyzer
    • H2 Recombiner
    • PCIG (Only HV-5154, 5155,5156A/B)
  14. (PCIS – SM) – Lose on 1.68 # D/W pressure
    • Torus Water Cleanup
    • Drywell Equipment Drains
    • PCIG Tip Purge
    • Rx Coolant Leak Detection
    • Containment Atm. Control & Drywell Purge
    • H2/02 Analyzer
    • H2 Recombiner
    • PCIG
    • Drywell Chill Water
    • CRD to Recirc Seals
    • RACS
  15. (PCIS – SM) – Lose on 1x10^-3 RBE HI-HI RAD
    • Torus Water Cleanup
    • Drywell Equipment Drains
    • PCIG Tip Purge
    • Rx Coolant Leak Detection
    • Containment Atm. Control & Drywell Purge
    • H2/02 Analyzer
    • H2 Recombiner
    • PCIG
  16. (PCIS – SM) – Lose on -129” RWL Level 1
    • PCIG (All valves)
    • Drywell Chill Water
    • CRD to Recirc Seals
    • RACS
  17. (PCIS – SM) – PCIS Isolates the following systems:
    • Torus Water Cleanup
    • Drywell Equipment Drains
    • PCIG Tip Purge
    • Rx Coolant Leak Detection
    • Containment Atm. Control & Drywell Purge
    • H2/02 Analyzer
    • H2 Recombiner
    • PCIG
    • Drywell Chill Water
    • CRD to Recirc Seals
    • RACS
  18. (PCIS – SM) – Purpose of PCIS
    • Closes valves that connect to primary containment in systems NOT connected to the RPV
    • Causes Isolations and starts equipment at LOCA L1 or LOCA L2
  19. (PCIS – SM) – PCIS LOCA L1 setpoints and origins
    • -129” RPV (From Core Spray)
    • 1.68 psig Drywell (From Core Spray)
    • Core Spray Manual P.B.
  20. (PCIS – SM) – PCIS LOCA L2 setpoints and origins
    • -38” RPV (From NSSSS and Core Spray)
    • 1.68 psig Drywell (From RPS (Through NS4) and Core Spray
    • PCIS Manual P.B.
  21. (PCIS – SM) – A manual NS4 initiation will:
    only give you half of a LVL 2 Isolation (light will flash).
  22. (PCIS – SM) – The manual PCIS button causes:
    • gives you a half lvl 2 isolation (from the CS side of the logic);
    • it will also give you a RBE/RFE hi level isolation.
  23. (PCIS – SM) – PCIS inputs from RBE/RFE RMS are arranged:
    RBE and RFE RMS input to each channel of PCIS
  24. (PCIS – SM) – How many channels?
    Four Channels (A-D), Energized to operate
  25. (PCIS – SM) – Loss of 481 inverter effects
    Loss of 481 inverters – lose initiation signals (Instrumentation)
  26. (PCIS – SM) – Loss of 482 inverter effects
    Loss of 482 inverters – lose indications (baily logic)
  27. (PCIS – SM) – Loss of Class 1E 125 VDC will prevent
    Loss of the 125 VDC buses will prevent the CS logic from initiating and sending the applicable signals to the PCIS system for Isolations/Initiations.
  28. (PCIS – SM) – DC Bus and Logic arrangement for CS
    • The Class 1E 125 VDC buses supply Logic Power to the CS cabinets as shown
    • DC Bus Logic
    • 1AD417 10C617
    • 1BD417 10C618
    • 1CD417 10C641
    • 1DD417 10C640
  29. (PCIS – SM) – AC Inverter Power and Cabinet arrangement
    • The Class 1E instrumentation AC power supply inverters provide single phase, 120VAC to the CS logic cabinets as shown.
    • Inverter Trip Relay
    • 1AD481 10C617
    • 1BD481 10C618
    • 1CD481 10C641
    • 1DD481 10C640
    • Inverter Logic Cabinet
    • 1AD482 AC652
    • 1BD482 BC652
    • 1CD482 CC652
    • 1DD482 DC652
  30. (PCIS – SM) – Failure of the UPS power to a specific logic cabinet will:
    Failure of the UPS power to a specific logic cabinet will prevent that particular division of the PCIS from initiating isolation functions (loss of a 482 inverter)
  31. (PCIS – SM) – Failure of the UPS power to a specified CS logic cabinet will:
    • Failure of the UPS power to a specified CS logic cabinet trip relays will prevent that particular division of CS trip relays from initiating isolation functions from CS to the PCIS system. (Loss of 481 inverter)
    • Additionally, a false RBE/RFE Hi-Hi Rad signal will be generated on the affected channel. This will cause the associated RBE/RFE Hi-Hi rad valve isolations, load sheds, and equipment starts to occur on the affected channel.
Author
NuclearGuy
ID
352335
Card Set
PCIS isolations
Description
PCIS isolations
Updated