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 1.8 -0.4 1.2 0.4 1.8 -0.4 1.2 0.4 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 circuit breaker bus bar CTs and PTs transformer circuit breaker bus bar CTs and PTs transformer ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is depends on load different depends on transformer design same depends on load different depends on transformer design same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on rotor resistance and reactance stator reactance load current stator resistance rotor resistance and reactance stator reactance load current stator resistance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=R₂/X₂
GETCO Exam Paper (22-07-2015) Select the wrong statement from the following in relation to power flow analysis Approximation is used in FDLF method jacobian is always required No of ittretion in N R method can not be more than 30 for any system Y Bus is required for power flow analysis Approximation is used in FDLF method jacobian is always required No of ittretion in N R method can not be more than 30 for any system Y Bus is required for power flow analysis ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) When the load is suddenly increased in the receiving end of the system, the phase shift will decrease increase remains same Not affected decrease increase remains same Not affected ANSWER DOWNLOAD EXAMIANS APP
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