Power Systems Mho relay is used for the protection of no length criterion. medium length lines. long transmission lines. short length lines. no length criterion. medium length lines. long transmission lines. short length lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The capacitance of an overhead transmission line increases with both 1 and 2 increase in mutual geometrical mean distance neither 1 nor 2 increase in height of conductors above ground both 1 and 2 increase in mutual geometrical mean distance neither 1 nor 2 increase in height of conductors above ground ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 33.33% 25% 75% 66.66% 33.33% 25% 75% 66.66% 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 1000 Ω 250 Ω 25 Ω 500 Ω 1000 Ω 250 Ω 25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.92 -0.56 0.92 0.56 -0.92 -0.56 0.92 0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Generation of of one watt needs about ______________ fission per second 3.1 × 1010. 3.1 × 106. 3.1. 3.1 × 107. 3.1 × 1010. 3.1 × 106. 3.1. 3.1 × 107. ANSWER DOWNLOAD EXAMIANS APP
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