Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? star-delta delta-delta delta-star star-star star-delta delta-delta delta-star star-star ANSWER DOWNLOAD EXAMIANS APP
Power Systems For loss less line, find the ratio of length to the wave length of a signal for a phase shift of 0.05 radians? 8 × 10³ 2 × 10-3 7.95 × 10-3 7.95 × 10³ 8 × 10³ 2 × 10-3 7.95 × 10-3 7.95 × 10³ ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor? d 2d 5d 3d d 2d 5d 3d ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ideal plant load cfactor is 0 greater than 1 1 less than 1 0 greater than 1 1 less than 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
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