GETCO Exam Paper (30-11-2008) When a star delta transformer bank of three single phase transformers is to be used for step down transformation with line voltages of 23000 V and 2300 V, the ratio of transformation will be 5.8:1 10.0:1 12.1:1 17.2:1 5.8:1 10.0:1 12.1:1 17.2:1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Directional over current relays have two exciting coils connected across _____ secondary's of two _____ phases T., different T. & P.T., different P.T., different T. & P.T., same T., different T. & P.T., different P.T., different T. & P.T., same ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Dynamic stability characteristics are predominant in the period both (b) & (c ) between the time the governors start reacting and when the steady-state stability is reached while governor is in action immediately following a loss of load both (b) & (c ) between the time the governors start reacting and when the steady-state stability is reached while governor is in action immediately following a loss of load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The number of pilot wires required for protecting 3-phase transmission lines using Translay System of protection is 3 2 6 4 3 2 6 4 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The C.B.s which produces the least arc energy are air blast air break plain oil minimum oil air blast air break plain oil minimum oil ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) If the +Ve, -Ve & zero sequence reactances of an elements of a power system are 0.3, 0.3 & 0.8 p.u. respectively, the element would be static load transmission line synchronous motor synchronous generator static load transmission line synchronous motor synchronous generator ANSWER DOWNLOAD EXAMIANS APP
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