GETCO Exam Paper (22-07-2015) Select the wrong statement from the following in relation to power flow analysis Approximation is used in FDLF method Y Bus is required for power flow analysis No of ittretion in N R method can not be more than 30 for any system jacobian is always required Approximation is used in FDLF method Y Bus is required for power flow analysis No of ittretion in N R method can not be more than 30 for any system jacobian is always required ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by by fast switching reducing fault clearing time decreasing generator inertia using double circuit line instead of single circuit line by fast switching reducing fault clearing time decreasing generator inertia using double circuit line instead of single circuit line ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which city is capital of Meghalaya? (As on 22/07/2015) Itanagar Shilong Imphal Dispur Itanagar Shilong Imphal Dispur ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Over current Relay Impedance Relay Mho Relay Reactance Relay Over current Relay Impedance Relay Mho Relay Reactance Relay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is leading unity lagging zero leading unity lagging zero 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 differential protection scheme, a stabilizing resistance connected to block harmonics 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 ANSWER DOWNLOAD EXAMIANS APP
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