GETCO Exam Paper (22-07-2015) In differential protection scheme, a stabilizing resistance connected to reduce the effect of non identical CTs increase the current limit increase the relay sensitivity block harmonics reduce the effect of non identical CTs increase the current limit increase the relay sensitivity block harmonics ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The PU impedance of a 1089 MVA, 33 kV generator is 1, the ohmic value of its impedance is: 10 100 0.5 1 10 100 0.5 1 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 3 1.73 0.33333333333333 1 3 1.73 0.33333333333333 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 emergency lighting circuits operating automatic control circuits operating protective relay systems provide supply to the excitation system emergency lighting circuits operating automatic control circuits operating protective relay systems 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 kW 250 MW 400 MW 1000 MW 1000 kW 250 MW 400 MW 1000 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) The insulation strength of an EHV transmission line is mainly governed by Switching over voltages Corona Harmonics Load power factor Switching over voltages Corona Harmonics Load power factor ANSWER DOWNLOAD EXAMIANS APP
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