Spent Fuel Pool cooling systems at Fukushima Daiichi and Daini stopped after power supply problem

Published: January 17th, 2012 at 7:24 am ET


Title: Breaking news : SPF cooling system got stopped at reactor 2,3,6,and 1,3 of daini
Source: Fukushima Diary
Date: January 17th, 2012

SFP cooling system of reactor 2,3,6 and 1 and 3 of Daini were stopped because of the trouble of power exchanging facility in Iwaki Fukushima.[…] cesium absorbing system, nitrogen injecting system for reactor 1,2,3, and gas purifying system of reactor 2 were stopped too.

The hydrogen gas level is still high in reactor1~3. Stopping injection on nitrogen gas may cause another hydrogen explosion.

(Source: Asahi)

Read the report here

Title: Just In: Voltage Dropped in Wide Area in Fukushima, Some Systems at Fukushima I and II Nuke Plants Stopped
Source: EX-SKF
Date: January 17, 2012

(UPDATE: The systems are getting back online.)It happened around 4:10PM on January 17, 2012. […]

Nitrogen injection system [has] since restarted […]

    Press conference […]

    • TEPCO’s switching station in Minami Iwaki had a problem that caused the voltage to drop momentarily. They turned the switch off for a few milliseconds to clear the system.
    • TEPCO doesn’t know what caused the problem at the switching station.
    • The systems are getting back online. Kurion is still stopped. None of the systems needs to be continuously operated.
    • (There is absolutely no urgency in either question or answer, so I think everything is dandy now. I’m signing off.)

    Read the report here

    Published: January 17th, 2012 at 7:24 am ET


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    8 comments to Spent Fuel Pool cooling systems at Fukushima Daiichi and Daini stopped after power supply problem

    • bmurr bmurr

      You mean to tell ne they havent set up back up generation yet???? Didnt we learn a small lesson about back up generators back in march?
      Are theae people amateur electricians?
      They should be setting up redundancies to even these clean up efforts.

    • hbjon hbjon

      That explains the lava flow between Units 3 and 4. I guess the announcement will follow shortly. Probably will read, “The cold shutdown at Fukushima Daiichi has undergone a “hot startup due to a nonfunctioning heat transfer system for the sfp. One of our great heroes sacrificed his life in a valiant attempt to make repairs.”

    • I’d watch out for Daiini.

      • Joy
        do you think the report of the cracked pressure vessel means big bang or just more radiation releases?

        by the way, I read all of your analyses of the FOIA releases. Excellent analysis!

        Many thanks!