Power Systems The maximum demand of a consumer is 2 kW and corresponding daily energy consumption is 30 units. What is the corresponding load factor? 50.5% 75% 62.5% 25% 50.5% 75% 62.5% 25% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A lossless power system has to serve a load of 250 MW. There are two generators(G1 and G2) in the system with cost curves C1 and C2 respectively defined as follows: C1 = PG1+0.055P²G1 C2 = 3 PG2 + 0.03 P²G2 Where PG1 and PG2 are the MW injections from generators G1 and G2 respectively. Thus, the minimum cost dispatch will be PG1 = 250 MW and PG2 = 0 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 0 MW and PG2 = 250 MW PG1 = 250 MW and PG2 = 0 MW PG1 = 150 MW and PG2 = 100 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 0 MW and PG2 = 250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bonding is done at the both ends of the cable to reduce the sheath loss copper loss None of these iron loss sheath loss copper loss None of these iron loss ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the storage is provided. the height of water level in the river where the tail race is provided. all of above. the difference of water level between the level in storage and tail race. the height of water level in the river where the storage is provided. the height of water level in the river where the tail race is provided. all of above. the difference of water level between the level in storage and tail race. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 30.28 kV 28.28 kV 31.28 kV 29.28 kV 30.28 kV 28.28 kV 31.28 kV 29.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the diameter of the conductor is increased no change in inductance and resistance the inductance is increased the resistance is increased the inductance is decreased no change in inductance and resistance the inductance is increased the resistance is increased the inductance is decreased ANSWER DOWNLOAD EXAMIANS APP
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