GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because Harmonic problem is avoided System stability can be improved Its terminal equipment are inexpensive VAR compensation is not required in it Harmonic problem is avoided System stability can be improved Its terminal equipment are inexpensive VAR compensation is not required in it ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Select the wrong statement from the following in relation to 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 Approximation is used in FDLF method Y Bus is required for power flow analysis ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 7\8 6\7 2\3 5\6 7\8 6\7 2\3 5\6 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 load flow analysis, the load at the bus is represented as none of these a constant impedance connected at the bus a constant current drawn from the bus a voltag dependent impedance at the bus none of these a constant impedance connected at the bus a constant current drawn from the bus a voltag dependent impedance at the bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The constraints that are to be met with while solving UC problem are Minimum up time all are correct Minimum down time Spinning reserve Minimum up time all are correct Minimum down time Spinning reserve ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Switching surges are high votage DCs high voltage Acs power frequency voltage short duration transient voltage high votage DCs high voltage Acs power frequency voltage short duration transient voltage ANSWER DOWNLOAD EXAMIANS APP
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