Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs shunt resistance at receiving end All of these shunt capacitor at receiving end shunt reactor at receiving end shunt resistance at receiving end All of these shunt capacitor at receiving end shunt reactor at receiving end ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation none of above. to have large number of small size thermal plants located at different places. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. none of above. to have large number of small size thermal plants located at different places. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 10.936 pu 8.936 pu 7.936 pu 9.936 pu 10.936 pu 8.936 pu 7.936 pu 9.936 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 350 Amp. 250 Amp. 300 Amp. 200 Amp. 350 Amp. 250 Amp. 300 Amp. 200 Amp. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of the following relays has the capability of anticipating the possible major fault in a transformer? Over current relay Differential relay Buchholz relay Over fluxing relay Over current relay Differential relay Buchholz relay Over fluxing relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is 250 Ω 500 Ω 25 Ω 1000 Ω 250 Ω 500 Ω 25 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS