GETCO Exam Paper (22-07-2015) In rotating electrical machines, the insulation temperature limit for class B type is 180˚C 105˚C 130˚C 150˚C 180˚C 105˚C 130˚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) In differential protection scheme, a stabilizing resistance connected to increase the current limit reduce the effect of non identical CTs increase the relay sensitivity block harmonics increase the current limit reduce the effect of non identical CTs increase the relay sensitivity block harmonics ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 7 3 + 2(1.41) 4.12 5 7 3 + 2(1.41) 4.12 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP if voltage is given by,v(t) = V₀ + V₁ cos(3t) + V₂ cos(5t)+ …RMS value is given by,√( V₀² + (V₁/√2)² + (V₂/√2)² + …)
GETCO Exam Paper (22-07-2015) The constraints that are to be met with while solving UC problem are Minimum up time Spinning reserve Minimum down time all are correct Minimum up time Spinning reserve Minimum down time all are correct ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Steady state limit Transient stability limit Reactive power limit Short circuit limit Steady state limit Transient stability limit Reactive power limit Short circuit limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The area under the load duration curve represents Maximum demand of the power station energy generated in the period considered base load of the system average load of the system Maximum demand of the power station energy generated in the period considered base load of the system average load of the system ANSWER DOWNLOAD EXAMIANS APP
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