GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 150˚C 180˚C 130˚C 105˚C 150˚C 180˚C 130˚C 105˚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) In G-S method of power flow problem, the number of iterations _____ remains fixed depends on no of buses depends on tolerance depends on voltage control buses remains fixed depends on no of buses depends on tolerance depends on voltage control buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by using double circuit line instead of single circuit line decreasing generator inertia reducing fault clearing time by fast switching using double circuit line instead of single circuit line decreasing generator inertia reducing fault clearing time by fast switching ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Earth wire on EHV overhead transmission line is provided to protect the line against switching surge lightning surge corona effect excessive fault voltages switching surge lightning surge corona effect excessive fault voltages ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) 100% string efficiency means 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 Equal potential across each disc ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 1000 MW 250 MW 1000 kW 400 MW 1000 MW 250 MW 1000 kW 400 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
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