GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on stator reactance load current rotor resistance and reactance stator resistance stator reactance load current rotor resistance and reactance stator resistance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=R₂/X₂
GETCO Exam Paper (22-07-2015) For given kVAR and line voltage the ratio of star to delta value of capacitor is 0.33333333333333 3 1.73 1 0.33333333333333 3 1.73 1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not function of substation batteries? provide supply to the excitation system operating protective relay systems emergency lighting circuits operating automatic control circuits provide supply to the excitation system operating protective relay systems emergency lighting circuits operating automatic control circuits ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Laplace transforms is used for converting non linear equation to linear equation for finding initial condition in a system finding transfer function of any systems converting diffential equation to algebraic equation converting non linear equation to linear equation for finding initial condition in a system finding transfer function of any systems converting diffential equation to algebraic equation 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 Spinning reserve Minimum down time Minimum up time all are correct Spinning reserve Minimum down time 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 5\6 2\3 7\8 6\7 5\6 2\3 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
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