Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 2 pu 0.5 pu 4 pu 0.2 pu 2 pu 0.5 pu 4 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of short transmission lines only medium transmission lines only All of these long transmission lines only short transmission lines only medium transmission lines only All of these long transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) enriched uranium is used as fuel. the feed water acts both coolant and a moderator. all of above. there is danger of radioactive contamination of steam. enriched uranium is used as fuel. the feed water acts both coolant and a moderator. all of above. there is danger of radioactive contamination of steam. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. 1 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true?Zn The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit both 1 and 2 nether 1 nor 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in ground star / delta. delta / star. delta / delta. star / grounded star. ground star / delta. delta / star. delta / delta. star / grounded star. ANSWER DOWNLOAD EXAMIANS APP
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