Electrical Engineering > GATE 2015 SET-1 > HVDC Transmission
Consider a HVDC link which uses thyristor based line-commutated converters as shown in the figure. For a power flow of 750 MW from System 1 to System 2, the voltages at the two ends, and the current, are given by: V1=500kV, V2=485kV and I=1.5kA. If the direction of power flow is to be reversed (that is, from System 2 to System 1) without changing the electrical connections, then which one of the following combinations is feasible?
A
V1=-500kV, V2=-485kV and I=1.5kA
B
V1=-485kV, V2=-500kV and I=1.5kA
C
V1=500kV, V2=485kV and I=-1.5kA
D
V1=-500kV, V2=-485kV and I=-1.5kA

Explanation

Correct : a

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