Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? 18.18 kV 81.82 kV -18.18 kV -81.82 kV 18.18 kV 81.82 kV -18.18 kV -81.82 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of communication lines power lines same in both cases None of these communication lines power lines same in both cases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 60 Hz, 320 Km loss less line has sending end voltage 1.0 pu. The receiving end voltage on no-load is none of these. 1.088 pu. 1.1 pu. 1.116 pu. none of these. 1.088 pu. 1.1 pu. 1.116 pu. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The charging reactance of 50 km transmission line is 1500 Ω. What is the charging reactance for 100 km length of line? 750 Ω 1500 Ω 1000 Ω 3000 Ω 750 Ω 1500 Ω 1000 Ω 3000 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be 8 MΩ 16 MΩ 4 MΩ 32 MΩ 8 MΩ 16 MΩ 4 MΩ 32 MΩ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the propagation constant, if impedance is 10Ω and admittance is 10 ℧? 100 10 5 1 100 10 5 1 ANSWER DOWNLOAD EXAMIANS APP
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