Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are six two three one six two three one ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the length of the transmission line, the charging current None of these increases decreases remains unaffected None of these increases decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be 89.22 kVA. 49 kVA. 70 kVA. 35 kVA. 89.22 kVA. 49 kVA. 70 kVA. 35 kVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The fact that current density is higher at the surface when compared to centre is known as proximity effect skin effect All of these carona proximity effect skin effect All of these carona ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero if the mutual couplings between transmission lines are absent if the shunt admittances at the buses are ignored if both 2 and 3 are satisfied always if the mutual couplings between transmission lines are absent if the shunt admittances at the buses are ignored if both 2 and 3 are satisfied always ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS