GETCO Exam Paper (22-07-2015) The Z matrix of 2 port network is given by [0.9 0.2 : 0.2 0.6]. The element Y22 of the corresponding Y matrix of the same network is given by 0.4 -0.4 1.2 1.8 0.4 -0.4 1.2 1.8 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is unity leading zero lagging unity leading zero 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) Switching surges are high votage DCs high voltage Acs short duration transient voltage power frequency voltage high votage DCs high voltage Acs short duration transient voltage power frequency voltage ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The steady state stability of the power systems is most effected by transmission line reactance power factor of the load stability of generator voltage at generator bus transmission line reactance power factor of the load stability of generator voltage at generator bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which city is capital of Meghalaya? (As on 22/07/2015) Dispur Itanagar Imphal Shilong Dispur Itanagar Imphal Shilong ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Reactive power limit Short circuit limit Steady state limit Transient stability limit Reactive power limit Short circuit limit Steady state limit Transient stability limit ANSWER DOWNLOAD EXAMIANS APP
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