GETCO Exam Paper (22-07-2015) Calculate torque developed by the 3-phase, 5 HP, 4 pole induction motor runs at 1500 rpm 22 N-m 23.5 N-m 10 N-m 0 N-m 22 N-m 23.5 N-m 10 N-m 0 N-m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP P = 2πTN/60 where N is speed in rpm
GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because System stability can be improved VAR compensation is not required in it Harmonic problem is avoided Its terminal equipment are inexpensive System stability can be improved VAR compensation is not required in it Harmonic problem is avoided Its terminal equipment are inexpensive ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) During the insulation co-ordination in the sub station, the lowest insulation strength is at transformer CTs and PTs circuit breaker bus bar transformer CTs and PTs circuit breaker bus bar ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of HVDC transmission there is _____ both charging effect and skin effect no charging current no skin effect no charging current but skin effect charging current but no skin effect both charging effect and skin effect no charging current no skin effect no charging current but skin effect charging current but no skin effect ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 1000 MW 400 MW 250 MW 1000 kW 1000 MW 400 MW 250 MW 1000 kW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) Differential equation is required to be solved in _____ economical operation of power systems Finding efficiency of a transmission line Load flow studies Stability studies economical operation of power systems Finding efficiency of a transmission line Load flow studies Stability studies ANSWER DOWNLOAD EXAMIANS APP
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