Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. 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 500 Ω 250 Ω 1000 Ω 25 Ω 500 Ω 250 Ω 1000 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no both 1 and 2 shunt admittance None of these mutual coupling both 1 and 2 shunt admittance None of these mutual coupling ANSWER DOWNLOAD EXAMIANS APP
Power Systems Counter poise is used for more surge impedance proper discharging of lighting surges reduce losses less surge impedance more surge impedance proper discharging of lighting surges reduce losses less surge impedance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Corona loss is ----------------- on hilly areas than as plain areas. remain same None of these less more remain same None of these less more ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge tank is kept very close to the generator turbine spill way pen stock generator turbine spill way pen stock ANSWER DOWNLOAD EXAMIANS APP
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