GETCO Exam Paper (22-07-2015) The area under the load duration curve represents average load of the system base load of the system energy generated in the period considered Maximum demand of the power station average load of the system base load of the system energy generated in the period considered Maximum demand of the power station ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of a balanced three phase sinusoidal AC supply, because of the phase difference rotating magnetic field is produced all are correct neutral current is high if load is not balanced neutral wire is not required, if load is balanced rotating magnetic field is produced all are correct neutral current is high if load is not balanced neutral wire is not required, if load is balanced ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … Y primitive is a sparse matrix bus incidence matrix is a sparse matrix no of lines are less lines are connected to less no. of buses Y primitive is a sparse matrix bus incidence matrix is a sparse matrix no of lines are less lines are connected to less no. of buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is unity zero leading lagging unity zero leading lagging ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
GETCO Exam Paper (22-07-2015) In load flow analysis, the load at the bus is represented as a constant impedance connected at the bus a constant current drawn from the bus none of these a voltag dependent impedance at the bus a constant impedance connected at the bus a constant current drawn from the bus none of these a voltag dependent impedance at the bus 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 CTs and PTs bus bar circuit breaker transformer CTs and PTs bus bar circuit breaker transformer ANSWER DOWNLOAD EXAMIANS APP
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