GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 180˚C 130˚C 105˚C 150˚C 180˚C 130˚C 105˚C 150˚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) Earth wire on EHV overhead transmission line is provided to protect the line against switching surge excessive fault voltages corona effect lightning surge switching surge excessive fault voltages corona effect lightning surge ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) During the insulation co-ordination in the sub station, the lowest insulation strength is at transformer bus bar CTs and PTs circuit breaker transformer bus bar CTs and PTs circuit breaker ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For given kVAR and line voltage the ratio of star to delta value of capacitor is 1.73 3 1 0.33333333333333 1.73 3 1 0.33333333333333 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Increase line impedance Reduce the fault level Improve the stability Improve voltage profile Increase line impedance Reduce the fault level Improve the stability Improve voltage profile ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In the standard B-H curve X axis and Y axis intercepts respctively represents coercive force and residual magnetism residual magnetism and coercive force Hysteresis loss and Flux Flux and MMF coercive force and residual magnetism residual magnetism and coercive force Hysteresis loss and Flux Flux and MMF ANSWER DOWNLOAD EXAMIANS APP
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