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Two six pulse converters used for bipolar HVDC transmission system, are rated at 1000 MW, +- 200 kV. Find the dc current in the transmission line.

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Two six pulse converters used for bipolar HVDC transmission system, are rated at 1000 MW, +- 200 kV. Find the dc current in the transmission line.

(a) 500 A

(b) 25 A

(c) 2500 A

(d) 5 A

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This interesting question is from Applications of Power Electronics-2 in portion Applications, Cycloconverters and  Miscellaneous of Power Electronics

1 Answer

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by (45.1k points)
Correct answer is (c) 2500 A

The best explanation: Transmission voltage = 200 + 200 = 400 kV.

I = P/V = 1000 mW/ 400 kV = 2500 A.

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