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Popping a 5000 Amp Fuse
- Thread starter RayDunzl
- Start date
Speedskater
Major Contributor
At my old R&D day jobs, one of the engineers took several large fuse to the Tennessee Valley Authority test facility. At the facility they had a bunker for the testers while they blew things up
mhardy6647
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The topic puts me to mind of this old-ish YT video that answers that age-old question: so how does one disconnect a 500 kV electric line?
The connect video is rather less dramatic, because the ionization doesn't happen until the connections are almost made.
The connect video is rather less dramatic, because the ionization doesn't happen until the connections are almost made.
nerdstrike
Active Member
Ah, good old photonic induction. What a lunatic, with enough knowledge to avoid death.
Very enjoyable and sometimes very interesting videos
Very enjoyable and sometimes very interesting videos
mhardy6647
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Just what the species needs in the gene pool.
staticV3
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If you enjoy this niche category of highly skilled people navigating deadly situations, also check out
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DVDdoug
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WOW!!!
Somewhat related... Several years ago transformers in our neighborhood were burning-up. I didn't see evidence of a fire or anything but the power would go out for a couple of days until they replaced the transformer. The rumor was that there was a (intermittent?) short somewhere. I think they eventually ended-up doing some re-wiring (underground) and we don't have the problem anymore.
So at that time I was wondering... How do you check for shorts on a power line? It's GOT to measure nearly-short (a fraction of an Ohm) under normal conditions. I assume they adjust it for 10-1V (or something like that) and measure the current.
Somewhat related... Several years ago transformers in our neighborhood were burning-up. I didn't see evidence of a fire or anything but the power would go out for a couple of days until they replaced the transformer. The rumor was that there was a (intermittent?) short somewhere. I think they eventually ended-up doing some re-wiring (underground) and we don't have the problem anymore.
So at that time I was wondering... How do you check for shorts on a power line? It's GOT to measure nearly-short (a fraction of an Ohm) under normal conditions. I assume they adjust it for 10-1V (or something like that) and measure the current.
By divide and conquer technique. Follow through the circuit determining at each branch the flow of high current until the short is found.
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