GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because Harmonic problem is avoided VAR compensation is not required in it Its terminal equipment are inexpensive System stability can be improved Harmonic problem is avoided VAR compensation is not required in it Its terminal equipment are inexpensive System stability can be improved ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The insulation strength of an EHV transmission line is mainly governed by Corona Switching over voltages Harmonics Load power factor Corona Switching over voltages Harmonics Load power factor ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In differential protection scheme, a stabilizing resistance connected to block harmonics increase the relay sensitivity increase the current limit reduce the effect of non identical CTs block harmonics increase the relay sensitivity increase the current limit reduce the effect of non identical CTs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) No load efficiency of tranformer is _____ than full load efficiency depends on load greater same lesser depends on load greater same lesser ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The mechanical angle is _____ electrical angle always less greater than or equal to lesser than or equal to same always less greater than or equal to lesser than or equal to same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Electrical angle = (P/2)*mechanicla angle
GETCO Exam Paper (22-07-2015) Current chopping phenomenon is related to small inductive current resistance switching asymmetrical current capacitance switching small inductive current resistance switching asymmetrical current capacitance switching ANSWER DOWNLOAD EXAMIANS APP
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