Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 5 pu 3 and 1 pu 2 and 2 pu 1 and 3 pu 2 and 5 pu 3 and 1 pu 2 and 2 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 200 MVA 400 MVA 500 MVA 100 MVA 200 MVA 400 MVA 500 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 5 6 12 3 5 6 12 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of the cable is doubled, its capacitance C will be one-half. unchanged. doubled. one-fourth. one-half. unchanged. doubled. one-fourth. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the value of line inductance decrease None of these remains unaffected increase decrease None of these remains unaffected increase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? distance relays offset mho relay impedance relay reverse power relay distance relays offset mho relay impedance relay reverse power relay ANSWER DOWNLOAD EXAMIANS APP
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