Russian hydro dam failure
Russian hydro dam failure
(OP)
A couple of years since the accident at the Sayano–Shushenskaya Dam, but quite an informative video which i hadn't seen before.
http://www.youtube.com/watch?v=XJ6G0rxnzbw
http://www.youtube.com/watch?v=XJ6G0rxnzbw
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If we learn from our mistakes I'm getting a great education!





RE: Russian hydro dam failure
Tragic, and worse, avoidable. Doubly tragic.
rmw
RE: Russian hydro dam failure
What was the documented reason for the failure? I never heard.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Russian hydro dam failure
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If we learn from our mistakes I'm getting a great education!
RE: Russian hydro dam failure
msquared48 and all, here you can get a complete (in my opinion) technical explanation about that accident.
h
RE: Russian hydro dam failure
I thought these emergency shutdowns were computer controlled so something like this would not happen. Seems like the wickets would fail before the turbine was thrown up and out.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Russian hydro dam failure
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If we learn from our mistakes I'm getting a great education!
RE: Russian hydro dam failure
The other possible cause of rapid wicket gate closure is if trash, such as a small log, gets past the trash rack. A long slender item could get caught in one of the turbine passages. As it rotates around with the turbine, the object could strike each wicket gate with enough force to break the shear pins. Depending on where the wicket gates are balanced (center of pressure relative to the axis of rotation) they could slam shut. To avoid this, we regularly inspect our trash racks.
Tom Moritz
Mechanical Engineer
US Bureau of Reclamation