Quote:
Originally Posted by Mikee1
It is not DC. DC is very hard to transmit over long distances.
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DC is _BETTER_ for very long distance transmission. It's just harder and more expensive to deal with but once in place, there are no induction losses, no radiation losses and no skin effect. Cable for cable, you can move more power in a DC wire of the same size than the same conductor in AC.
Undersea cables? DC.
The problem with DC is related to converting it to AC, changing the voltages and circuit breakers. It's all possible, it's just a lot more effort to manage.
DC circuit breakers are very interesting as compared to AC. You need to channel an intense amount of energy into resistors while you are breaking the circuit. AC on the other hand, you can just wait for the current reversal and use the air gap. I'm overly simplifying here, but that's the gist of it.