GETCO Exam Paper (22-07-2015) Which of the following is the wrong statement in terms of slack bus? it should be located at the centre of the area it should be the largest generator bus in the system it has finite reactive power generation capability voltage and angle is specified at this bus it should be located at the centre of the area it should be the largest generator bus in the system it has finite reactive power generation capability voltage and angle is specified at this bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The instantaneous value of power in purely inductive circuit is zero none of this changing constant zero none of this changing constant ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The instantaneous value of power in purely inductive circuit is changing as it is given as v*i. The average power of purely inductive circuit over a cycle is zero
GETCO Exam Paper (22-07-2015) For selecting low voltage cable which of the following factors is not important? current carrying capacity short circuit current rating voltage grade permissible voltage drop current carrying capacity short circuit current rating voltage grade permissible voltage drop ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt capacitors in a substation consumes lagging VAR deliver active power consume active power delivers lagging VAR consumes lagging VAR deliver active power consume active power delivers lagging VAR ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 5\6 6\7 7\8 2\3 5\6 6\7 7\8 2\3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) During the insulation co-ordination in the sub station, the lowest insulation strength is at CTs and PTs circuit breaker bus bar transformer CTs and PTs circuit breaker bus bar transformer ANSWER DOWNLOAD EXAMIANS APP
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