GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Improve the stability Reduce the fault level Increase line impedance Improve voltage profile Improve the stability Reduce the fault level Increase line impedance Improve voltage profile ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … 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 Y primitive is a sparse matrix bus incidence matrix is a sparse matrix ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of Armature current Vs active power Armature current Vs power factor Armature current Vs reactive power Armature current Vs Field current Armature current Vs active power Armature current Vs power factor Armature current Vs reactive power Armature current Vs Field current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
GETCO Exam Paper (22-07-2015) During the insulation co-ordination in the sub station, the lowest insulation strength is at transformer circuit breaker bus bar CTs and PTs transformer circuit breaker bus bar CTs and PTs ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Low life span 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 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is a reason to decouple AVR and LFC loops when there is a shortage of reactive power? deference of error is the main reason AVR loop response is slower than LFC loop angle of the voltage is not considered Change in voltage magnitude marginally affects real power deference of error is the main reason AVR loop response is slower than LFC loop angle of the voltage is not considered Change in voltage magnitude marginally affects real power ANSWER DOWNLOAD EXAMIANS APP
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