(cache) The parameters related to the plants in Fukushima Daiichi Nuclear Power Station | TEPCO

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The parameters related to the plants in Fukushima Daiichi Nuclear Power Station

The newest data

The parameters related to the plants in Fukushima Daiichi Nuclear Power Station  The newest data

Parameters rerated to temperature (Graph)  Unit1 / Unit2 / Unit3

[Reference] Measuring points of temperature (Figure)

Data(Every hour) CSV  Unit1 / Unit2 / Unit3 / Unit5,6

Data(Every 6 hour) CSV  Unit1 / Unit2 / Unit3,4

[Reference] The latest statuses of measurement instruments according to the data obtained every hour and every 6 hours (CSV) (Data updated on March 2, 2013)

* Only Japanese for holidays and weekends

 

Archives

2013

2012

2011

Change history etc.

Oct 2, 2013
Since a thermormeter was additionally installed inside the Unit 2 PCV, data recording of Unit 2 PCV temperature (TE-16-007 and TE-16-008) provided in "Data (Every 6 hour) CSV" was started at 5:00 AM on October 2, 2013. In addition, "Parameters related to temperature (Graph)" and "Measuring points of temperature (Figure)" was renewed.
We have corrected the name of the instrument (TE-2-3-69F1, TE-2-3-69F2 and TE-2-3-69F3) provided in "Data (Every 6 hour) CSV" and "Measuring points of temperature (Figure)" at Unit 2.
Since Unit 6 reactor was opened, data recording of Unit 6 reactor water level provided in "Data (Every hour) CSV" was started by using the "reactor water level open vessel" at 4:00 PM on September 20, 2013. In addition, "Stoppage range of reactor water level" has no longer been displayed (left as blank) since 4:00 PM on September 20, 2013.
Apr 9, 2013
After 5:00 AM on April 9, 2013, the data obtained by an alternative instrument RPV BELLOWS SEAL AREA(TE-16-114N#1) replacing Unit 2 RPV BELLOWS SEAL AREA (TE-16-114R#2) has been provided in the data obtained every 6 hours (CSV).
Mar 4, 2013
After 0:00 AM on March 4, 2013, the data of instruments judged to be "failed" included in the data obtained every hour/six hours (CSV) is no longer displayed (left as blank) as they are no longer used for evaluation and their reliability is low.
As for the data of Unit 2 SUPPORT SKIRT TOP (TE-2-3-69K1) included in the data obtained every six hours (CSV), the data of the alternative Unit 2 SUPPORT SKIRT TOP (TE-2-3-69K2) is provided instead after 5:00 AM on March 4, 2013.
The data of the PCV temperatures （TE-16-114W#1）, (TE-16-114W#2）on March 4, 2013 are not displayed (left as blanks) in the data obtained every 6 hours (CSV) acquired at 11:00 AM on March 4 and later since the instruments were removed for the investigation of the inside of the PCV and permanent thermometer installation. The temperature measurement points (figure) have been updated accordingly.
Feb 18, 2013
As for the parameters related to Unit 1 water level, pressure and temperature obtained every hour (CSV), the data on reactor injection water flow rate (CS) as of 12:00 AM(Midnight) on January 23, 2012 has been corrected.
Jan 17, 2013
A document on the latest statuses of measurement instruments has been added (with the format of data obtained every hour and every 6 hours (CSV) changed).
Dec 4, 2012
The format of Unit 1 data obtained every 6 hours (csv) has been changed (click here for examples) and the temperature measurement points (figure) have been updated.
Nov 20, 2012
The data acquired at 1:35 and 12:25 on March 16, 2011 has been added to Unit 2 Parameters Related to Water Level and Pressure (CSV, graph)
Nov 14, 2012
The year in the "Parameters related to temperature" (CSV) for Units 1-3 in the 2011, 2012 archive has been corrected from 2012 to 2011.
Nov 8, 2012
Unit 3 spent fuel pool water temperature and FPC skimmer surge tank water level as of 11:00 on November 7 on the Parameters Related to Plants (overview chart) have been corrected to match the note.
Nov 6, 2012
Format being changed and measuring points of temperature (Figure)
Nov 5, 2012
According to the data additions and corrections made to the past parameters related to the plants, the water level, pressure, temperature data of March 2011 was updated and the amounts of water injection into Units 1-3 reactors and the complementary document on the fire fighting pump flowmeter reading data (posted on June 13, 2011) have been replaced.(Go here for details on the changes made)
Sep 8, 2012
Thermometers of safety regulations of Unit2 has been deleted since it was excluded from instruments to be monitored under the Safety Regulation.
Aug 14, 2012
Format being changed since the data of 11:00 am, August 14, 2012.
Jul 12, 2012
Format being changed since the data of 5:00 am, July 12, 2012.
May 28, 2012
Data was corrected as we found that the wiring for the digital recorder of Unit 1 safety valve thermometer was done incorrectly.
Mar 16, 2012
Format being changed since the data of 11:00 am, March 16, 2012. (For the data before 6:00 am on Mar.16, 2012)
Jan 19, 2012
Regarding the temperature data of Unit 1 as of 12:00 PM, January 18, the data table value on PDF page 3 was incorrect (we had uploaded the temperature data of Unit 2) from 3:00 PM, January 18 to 9:40 AM, January 19.
Nov 29, 2011
Incorrect data for pressure at Primary Containment Vessel of Unit 1 at Fukushima Daiichi Nuclear Power Station (Brief Overview)
Nov 11, 2011
Correction of pressure data of plant parameters in primary containment vessel D/W of Unit 2 in Fukushima Daiichi Nuclear Power Station
Jun 13, 2011
Correction of parameters related to the plants in Fukushima Daiichi Nuclear Power Station

[Press Release] Correction of parameters related to the plants in Fukushima Daiichi Nuclear Power Station[June 13, 2011]

Regarding the corrected points of parameters related to the plants( Graph , Data )

Volume of water injected into the reactor of Unit 1 to Unit 3 of Fukushima Nuclear Power Station (to May 16, 2011)

[Reference]Additional data of the fire fighter pump flowmeter during the measurement period of the Accident Management Panel. (Sep 9, 2011)

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