Power Systems For n bus power system size of Y bus matrix is (n-1)×(n-1) (n-1)×(n-2) (n-2)×(n-2) n×n (n-1)×(n-1) (n-1)×(n-2) (n-2)×(n-2) n×n ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of following is employed as a moderator by CANDU type of slow thermal nuclear reactors Water. Graphite. Heavy water. Beryllium. Water. Graphite. Heavy water. Beryllium. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to relieve water hammer pressure in the penstock. supply water at constant pressure. none of above. produce surge in the pipeline. relieve water hammer pressure in the penstock. supply water at constant pressure. none of above. produce surge in the pipeline. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 50% 90% 86%% 75% 50% 90% 86%% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.344∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.512∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS