Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 400 Ω 200 Ω 160 Ω 800 Ω 400 Ω 200 Ω 160 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? All of these flat tie line control flat frequency control parallel frequency All of these flat tie line control flat frequency control parallel frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 0.93 0.882 1 1.13 0.93 0.882 1 1.13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line 0.01 + j 0.02 per Km. 0.018 per Km. 0.09 + j 0.018 per Km. None of them. 0.01 + j 0.02 per Km. 0.018 per Km. 0.09 + j 0.018 per Km. None of them. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following produces the radio interference in communication lines? electro static induction both 1 and 2 electro magnetic induction None of these electro static induction both 1 and 2 electro magnetic induction None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.6 and 0.6 pu 0.8, 0.8 and 0.8 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.6, 0.6 and 0.6 pu 0.8, 0.8 and 0.8 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
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