6. Data of transient recorders

Disclaimer
This English translation is only for reference purpose. When there are any discrepancies between original
Japanese version and English translation version, the original Japanese version always prevails.

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (1)SpareCycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Group Name: 1F-1 Reactor Pressure (2)SpareFile Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (3)APRM Neutron Flux High (Unusable)

Spare

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (4)APRM CH.1 Neutron Flux High High (Unusable)

APRM CH.2 Neutron Flux High High (Unusable)

APRM CH.3 Neutron Flux High High (Unusable)

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (5)APRM CH.4 Neutron Flux High High (Unusable)

APRM CH.5 Neutron Flux High High (Unusable)

APRM CH.6 Neutron Flux High High (Unusable)

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Water Level (1)Reactor Water Level (W/R) A

Reactor Water Level (W/R) B

Reactor Water Level (W/R) C

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Water Level (2)Reactor Water Level (W/R) A

Reactor Water Level (W/R) B

Reactor Water Level (shutdown range)

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Water Level (3)-1

Reactor Water Level High (L-8) (Unusable)

Spare

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Water Level (3)-2

Reactor Water Level Low (L-3) A(Unusable)

Reactor Water Level Low (L-3) B(Unusable)

Reactor Water Level Low (L-3) C(Unusable)

Reactor Water Level Low (L-3) D(Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Water Level (4)Reactor Water Level Low Low (L-2) A(Unusable)

Reactor Water Level Low Low (L-2) B(Unusable)

Reactor Water Level Low Low (L-2) C(Unusable)

Reactor Water Level Low Low (L-2) D(Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 1F-1 Emergency Core Cooling System Flow (1)CS Pump A Discharge Flow

CS Pump B Discharge Flow

CS Pump A Discharge Pressure

CS Pump B Discharge Pressure

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 1F-1 Emergency Core Cooling System Flow (2)CCS Pump A Discharge Flow

CCS Pump B Discharge Flow

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 1F-1 Emergency Core Cooling System Flow (3)HCPI Pump Discharge Flow

HCPI Pump Discharge Pressure

HCPI Pump Suction Pressure

HCPI Turbine Inlet Pressure

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 1F-1 Emergency Core Cooling System Flow (4)HCPI Turbine Exhaust Pressure

HCPI Turbine Speed

HCPI Flow Controller Output

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (5)IC̲A̲Water Level

IC̲B̲Water Level

IC̲A̲Inlet PressureIC̲B̲Inlet Pressure

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (11)-1

IC̲A Start (Unusable)

Spare

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (12)-1

IC̲B Start (Unusable)

Spare

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (11)-2

IC̲A Inlet Valve 1A OpenIC̲A Inlet Valve 2A OpenIC̲A Outlet Valve 3A OpenIC̲A Outlet Valve 4A Open

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (12)-2

IC̲B Inlet Valve 1B OpenIC̲B Inlet Valve 2B OpenIC̲B Outlet Valve 3B OpenIC̲B Outlet Valve 4B Open

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (6)Core Cooling System Start A (Unusable)

Core Cooling System Start B (Unusable)

Core Cooling System Start C (Unusable)

Core Cooling System Start D (Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (7)-1

HPCI Automatic Start Signal (Unusable)

HPCI LOCA Signal For Start

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (7)-2

HPCI̲SV OpenHPCI̲CV OpenHPCI̲AOP Start

HPCI̲Steam Inlet Valve Open

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (8)-1

CS Pump A Start (Unusable)

CS Pump B Start (Unusable)

CS Pump C Start (Unusable)

CS Pump D Start (Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (8)-2

CS Injection Valve 25A OpenCS Injection Valve 25B Open

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (9)-1

CCS Pump A Start (Unusable)

CCS Pump B Start (Unusable)

CCS Pump C Start (Unusable)

CCS Pump D Start (Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (9)-2

CCS Injection Valve A OpenCCS Injection Valve B Open

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (10)CCSW Pump A Start

CCSW Pump B Start

CCSW Pump C Start

CCSW Pump D Start

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (13)D/G̲1A Voltage

D/G̲1B Voltage

D/G̲1A Current

D/G̲1B Current

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (14)D/G̲1A Frequency

D/G̲1B Frequency

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (15)D/G̲1A Start

D/G̲1B Start

D/G̲1A̲Power Receiving Circuit Breaker Making Signal (Unusable)

D/G̲1B̲Power Receiving Circuit Breaker Making Signal (Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Others

6.9kV̲1C Bus Voltage

6.9kV̲1D Bus Voltage

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (16)-1

LOCA̲D/G̲1A Start

LOCA̲D/G̲1B Start

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Emergency Core Cooling System Flow (16)-2

Series A LOCA Signal

Series B LOCA Signal

LOPA̲D/G̲1A Start

LOPA̲D/G̲1B Start

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (1)Reactor Pressure (N/R)

Reactor Pressure (W/R)A

Reactor Pressure (W/R)B

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (2)Reactor Water Level High Trip A(Unusable)

Reactor Water Level High Trip B(Unusable)

Reactor Water Level High Trip C(Unusable)

Reactor Water Level High Trip D(Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (3)SRV̲A̲Open (Unusable)

SRV̲B̲Open (Unusable)

SRV̲C̲Open (Unusable)

SRV̲D̲Open (Unusable)

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (4)-1

All SIV Automatic Isolation Signal

Spare

Spare

Spare

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (4)-2

MSIV Automatic Isolation Signal A1

MSIV Automatic Isolation Signal A2MSIV Automatic Isolation Signal B1

MSIV Automatic Isolation Signal B2

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (5)MSIV Inner Valve 1A Automatic Isolation Signal

MSIV Inner Valve 1B Automatic Isolation Signal

MSIV Inner Valve 1C Automatic Isolation Signal

MSIV Inner Valve 1D Automatic Isolation Signal

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (6)MSIV Outer Valve 2A Automatic Isolation Signal

MSIV Outer Valve 2B Automatic Isolation Signal

MSIV Outer Valve 2C Automatic Isolation Signal

MSIV Outer Valve 2D Automatic Isolation Signal

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (7)MSIV Inner Valve 1A 90% CloseMSIV Inner Valve 1B 90% CloseMSIV Inner Valve 1C 90% CloseMSIV Inner Valve 1D 90% Close

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (8)MSIV Inner Valve 1A 10% CloseMSIV Inner Valve 1B 10% CloseMSIV Inner Valve 1C 10% CloseMSIV Inner Valve 1D 10% Close

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (9)MSIV Outer Valve 2A 90% CloseMSIV Outer Valve 2B 90% CloseMSIV Outer Valve 2C 90% CloseMSIV Outer Valve 2D 90% Close

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Reactor Pressure (10)MSIV Outer Valve 2A 10% CloseMSIV Outer Valve 2B 10% CloseMSIV Outer Valve 2C 10% CloseMSIV Outer Valve 2D 10% Close

Cycle of Data 0.01 sec

Fukushima Daiichi Nuclear Power Station Unit 1 Event Data Time-line Data Display File Name 1F1̲Cy24̲EVF̲DET̲2011̲03̲11̲Fri̲14̲47̲04.dat Cycle of Data 0.01 sec
Term of Data Display 2:42:03 pm, May 11, 2011 to 3:17:02 pm, May 11, 2011
Event Detection Time 2:47:03 pm, May 11, 2011 900 milli sec
Group Name: 1F-1 Main Steam Flow

Main Steam Flow A

Main Steam Flow B

Main Steam Flow C

Main Steam Flow D