Electrical fireball passing by in Montreal
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3. Baliverne commented 10 years ago
#1 I'm an electrician not a lineman but wild guess is that the line probably got cut futher down the street and started burning up the wire all the way back to the transformer, helped by the current passing in the other wire's different potential; probably why both are burning.
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4. LightAng3l commented 10 years ago
I was sleeping, and suddenly there was this bright light in my room. It made this strange noise and there where some human like silhouettes I think... they wanted to probe me....
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5. Teqskater commented 10 years ago
My guess as an electrician, but also not as a lineman:
There was a high voltage and current at a tranformer, wich is normal. But something went wrong and the power was disrupted. And when the power gets cut of from devices that cointain coils (like the transformers) some phenonomen starts to happen. It's called induction. Basicly the current doesn't want to stop flowing when you disconnect power from coils. The voltages starts to increase to make sure it can continue flowing (this is induction). The higher the voltage the better the current can pass trough isolating stuff. For example. Low voltage won't go trough a tree. But a voltage as high as that from a lighting bolt wil pass trough a tree. Strange huh, because wood isn't realy a conductor. But it is at very high voltage.
In this case the power won't hit a tree but jump over to another wire. That's why it arcs. The voltage is high enough to pass trough the air to another cable.
Now that's that. But what about the movement trough the cable? I don't know for sure but probable when the arc jumps over something happens at the spot where it starts on the cable and where it ends on the other cable. It has to do something with resistance i guess. Maybe when it arcs the heat will create some resistance at those spots and the current needs to choose another place on the cable. That's why i think it moves. But again, i'm not sure.
There was a high voltage and current at a tranformer, wich is normal. But something went wrong and the power was disrupted. And when the power gets cut of from devices that cointain coils (like the transformers) some phenonomen starts to happen. It's called induction. Basicly the current doesn't want to stop flowing when you disconnect power from coils. The voltages starts to increase to make sure it can continue flowing (this is induction). The higher the voltage the better the current can pass trough isolating stuff. For example. Low voltage won't go trough a tree. But a voltage as high as that from a lighting bolt wil pass trough a tree. Strange huh, because wood isn't realy a conductor. But it is at very high voltage.
In this case the power won't hit a tree but jump over to another wire. That's why it arcs. The voltage is high enough to pass trough the air to another cable.
Now that's that. But what about the movement trough the cable? I don't know for sure but probable when the arc jumps over something happens at the spot where it starts on the cable and where it ends on the other cable. It has to do something with resistance i guess. Maybe when it arcs the heat will create some resistance at those spots and the current needs to choose another place on the cable. That's why i think it moves. But again, i'm not sure.
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10. kaleemyork commented 10 years ago
finally light has gone
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12. bella1 commented 10 years ago
#1 Ac electricity has a combination of factors= Voltage , current and impedance.( Impedance is like resistance but is a combination of resistances and reactances.)
When the fault has a high enough impedance, the current is actually not very high but the Volage is very high. This makes it very difficult for the protective device to clear the fault since it measures the current thinking it is running normally.
When the fault has a high enough impedance, the current is actually not very high but the Volage is very high. This makes it very difficult for the protective device to clear the fault since it measures the current thinking it is running normally.
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13. Mourialaid commented 10 years ago
Montreal corruption effects!
+8 1. sx-64 commented 10 years ago