What current is needed to transmit 125 MW of power over a transmission line held

Question

What current is needed to transmit 125 MW of power over a transmission line held at a voltage of 25.0 kV?

Find the power loss that would occur in the transmission line if a 1.45-? line is used to transmit the above power.

What current is needed to transmit 125 MW of power over a transmission line held at a voltage of 25.0 kV? Number Find the power loss that would occur in the transmission line if a 1.45-Q line is used to transmit the above power Number What percent loss does this represent? Number

Explanation / Answer

a)   current needed = P/V

                                  = 125000000 / 25000

                                    =   5000 A

b)   power loss = 5000 * 5000 * 1.45

                          = 36250000 W

c)    percentage loss = (36250000 / 125000000) * 100

                                    = 29 %

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