[SystemSafety] Three Mile Island - Computer temperature readout during the incident

[Chuck_Petras at selinc.com]

Fun tidbit on human-machine interaction during the crisis.

"And it was unclear just how hot the core had become. Some temperature 
reading were high. Others were low. For a while, the computer monitoring 
the reactor temperature tapped out nothing but lines like these:

"???????????????????????????????????????????????????????????????????????????
???????????????????????????????????????????????????????????????????????????
???????????????????????????????????????????????????????????????????????????
[snip]"

<
https://urldefense.proofpoint.com/v2/url?u=https-3A__books.google.com_books-3Fid-3D9oUqDwAAQBAJ-26pg-3DPT21-26dq-3D-2522and-2Bit-2Bwas-2Bunclear-2Bjust-2Bhow-2Bhot-2Bthe-2Bcore-2Bhad-2Bbecome.-2Bsome-2Btemperature-2Breadings-2Bwere-2Bhigh.-2522-26hl-3Den-26sa-3DX-26ved-3D0ahUKEwiM4tLwlZDaAhUF8GMKHaejB2cQ6AEILDAA-23v-3Donepage-26q-3D-2522and-2520it-2520was-2520unclear-2520just-2520how-2520hot-2520the-2520core-2520had-2520become.-2520some-2520temperature-2520readings-2520were-2520high.-2522-26f-3Dfalse&d=DwIBAg&c=zVFQZQ67ypsA9mYKSCqWmQHiVkCCaN-Gb60_N6TVnLk&r=zCwDz0h_ezUCVpbXoLT-zh0iTVdbymfdnT16kGAgelNE5W_nOFK-pESbjJCRy2gv&m=mdEGOZ6R2AKf7ZUTesVE-Gyl9ww8WhTtLQgIYi4c-lE&s=gHT-vauvV7QqXwZxqx4ZZu-WyoLkYGB_b55dPgDae68&e=
>


Chuck Petras, PE**
Schweitzer Engineering Laboratories, Inc
Pullman, WA  99163  USA
http://www.selinc.com

SEL Synchrophasors - A New View of the Power System <
http://synchrophasor.selinc.com>

Making Electric Power Safer, More Reliable, and More Economical (R)

** Registered in Oregon.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.techfak.uni-bielefeld.de/mailman/private/systemsafety/attachments/20180328/43ba2a71/attachment.html>