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77 kW is to arrive at a town over two 0.140 ? lines. Estimate how much...

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Physics

77 kW is to arrive at a town over two 0.140 ? lines. Estimatehow much power is saved if the voltage is stepped up from 240 V to2400 V and then down again, rather than simply transmitting at 240V . Assume the transformers are each 99% efficient.

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4.1 Ratings (505 Votes)
Without the transformers we can find the delivered current which is the current in the transmission lines from the delivered power Pout IVout 77103 W I240V which gives I    See Answer
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