GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 5\6 7\8 2\3 6\7 5\6 7\8 2\3 6\7 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) In differential protection scheme, a stabilizing resistance connected to reduce the effect of non identical CTs increase the relay sensitivity increase the current limit block harmonics reduce the effect of non identical CTs increase the relay sensitivity increase the current limit block harmonics ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The recent (as on 22/07/2015) Mahakumbh is held at Nasik Haridwar Alahabad Ujjain Nasik Haridwar Alahabad Ujjain ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The power factor of the arc in circuit breaker is always leading always lagging always unity always zero always leading always lagging always unity always zero ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Synchronization problems Very high development costs Noise, pollution and maintenance problems Low life span Synchronization problems Very high development costs Noise, pollution and maintenance problems Low life span 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 no of lines are less lines are connected to less no. of buses bus incidence matrix is a sparse matrix Y primitive is a sparse matrix no of lines are less lines are connected to less no. of buses bus incidence matrix is a sparse matrix ANSWER DOWNLOAD EXAMIANS APP
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