GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Reduce the fault level Improve voltage profile Increase line impedance Improve the stability Reduce the fault level Improve voltage profile Increase line impedance Improve the stability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 130˚C 105˚C 150˚C 180˚C 130˚C 105˚C 150˚C 180˚C ANSWER EXPLANATION DOWNLOAD EXAMIANS APP insulation Class and temperature limit(in ˚C) is given below:Y - 90A- 105E- 120B-130F-155H-180C- above 180
GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because VAR compensation is not required in it System stability can be improved Harmonic problem is avoided Its terminal equipment are inexpensive VAR compensation is not required in it System stability can be improved Harmonic problem is avoided Its terminal equipment are inexpensive ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of a balanced three phase sinusoidal AC supply, because of the phase difference neutral wire is not required, if load is balanced all are correct neutral current is high if load is not balanced rotating magnetic field is produced neutral wire is not required, if load is balanced all are correct neutral current is high if load is not balanced rotating magnetic field is produced 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 operating automatic control circuits emergency lighting circuits provide supply to the excitation system operating protective relay systems operating automatic control circuits emergency lighting circuits ANSWER DOWNLOAD EXAMIANS APP
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 1.2 -0.4 1.8 0.4 1.2 -0.4 1.8 0.4 ANSWER DOWNLOAD EXAMIANS APP
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