Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 3 and 1 pu 2 and 2 pu 2 and 5 pu 1 and 3 pu 3 and 1 pu 2 and 2 pu 2 and 5 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In kaplan runner, the number of blades is generally of the order of 1 - 2. 12 - 16. 3 - 6. 16 - 24. 1 - 2. 12 - 16. 3 - 6. 16 - 24. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a biased differential relay the bias is defined as the ratio of fault current and operating coil current. number of turns of restraining and operating coil. fault current and restraining coil current. operating coil current and restraining coil current. fault current and operating coil current. number of turns of restraining and operating coil. fault current and restraining coil current. operating coil current and restraining coil current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Hydro-graph is similar to load curve. both B and C. energy load curve. mass curve. load curve. both B and C. energy load curve. mass curve. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 11.8% 88.2% 85% 15% 11.8% 88.2% 85% 15% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.0030 0.0060 0.60 0.30 0.0030 0.0060 0.60 0.30 ANSWER DOWNLOAD EXAMIANS APP
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