GETCO Exam Paper (22-07-2015) Select the wrong statement from the following in relation to power flow analysis jacobian is always required Y Bus is required for power flow analysis Approximation is used in FDLF method No of ittretion in N R method can not be more than 30 for any system jacobian is always required Y Bus is required for power flow analysis Approximation is used in FDLF method No of ittretion in N R method can not be more than 30 for any system ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The line current in a three phase unbalanced load are Ir= 4+j6, Ib= 2-j2 and Ic= -3+j2, then zero sequence component of current will be 3 + j6 1 + j2 9 + j10 3 - j6 3 + j6 1 + j2 9 + j10 3 - j6 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) 100% string efficiency means Equal potential across each disc Zero potential across each disc None uniform potential distribution across each disc One of the insulator discs shorted Equal potential across each disc Zero potential across each disc None uniform potential distribution across each disc One of the insulator discs shorted ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt capacitors in a substation delivers lagging VAR consumes lagging VAR deliver active power consume active power delivers lagging VAR consumes lagging VAR deliver active power consume active power 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
GETCO Exam Paper (22-07-2015) Penalty factor in power system economical operation is measure of Line loss generation cost all are correct fuel cost Line loss generation cost all are correct fuel cost ANSWER DOWNLOAD EXAMIANS APP
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