69kv switches opening
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@Roffeman1 As you do this everyday, I believe that you really do see this happen.
However I think you're reasoning is incorrect. Typically we see arcs occur from phase to ground, but the downstream side of the disconnector (the side we wish to 'isolate' and at the moment it is opened) is not grounded! That's why there is an earth switch we later close.
The isolated section should have nowhere for arc current to flow to, except it's own capacitance which would be very small (10m you say).
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@kymbolino Hi. I have opend 132kV switches when the main circut breaker (10 meters away) have been confirmed open. The reason for the arc is coming from the voltage difference. When the gap between the "live" end and the "disconnected" end is not far enougf from eachother, then the isolation capabilities of the air is not high enougf... When the distance is long enougf the ark is not powerful enougf to sustain itself and burns out. Sorry for my bad english... I do this every day...
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This isn't normal. A circuit breaker should be used to break the load first. The disconnector is only opened once current flow is proven to be broken.
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cool
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aw, tiny arc. you should check out a 500kV switch opening.
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helllll
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The arc you see occuring overhead is between two conductors supported by insulator stacks. This is normal and no big deal to the substation switchman. All is good.
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is it suppose to do that??
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the reason why its not a really big spark is because it takes 10,000 volts of electricity to spark 1 inch in air,. air in an insulator
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The resistance of the air between him and the live line is to great for an arc to form. If the voltages were higher that would however be the case.
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That went well, search 'vacrupter' for when it doesn't!
FBRK8R 3 years ago 11
That must look pretty spectacular at night!
Peedlebum 3 years ago 8