GETCO Exam Paper (30-11-2008) Dynamic stability characteristics are predominant in the period while governor is in action both (b) & (c ) immediately following a loss of load between the time the governors start reacting and when the steady-state stability is reached while governor is in action both (b) & (c ) immediately following a loss of load between the time the governors start reacting and when the steady-state stability is reached ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Two transformers are connected in parallel and share loads in the ratio of their kVA ratings when their ohmic impedances are equal in direct ratio of their ratings purely reactive in inverse ratio of their ratings equal in direct ratio of their ratings purely reactive in inverse ratio of their ratings ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Corona usually occurs when the electrostatic stress in the air around the conductor succeeds 11 kV (rms value)/cm 6.6 kV (rms value)/cm 30 kV (maximum value)/cm 22 kV (maximum value)/cm 11 kV (rms value)/cm 6.6 kV (rms value)/cm 30 kV (maximum value)/cm 22 kV (maximum value)/cm ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Graded time lag over current relaying without directional features can be employed for protection of parallel feeders radial feeders none of these ring mains parallel feeders radial feeders none of these ring mains ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The symmetrical components are used in fault analysis because the sequence networks do not have mutual couplings the number of equations become lesser the result are in terms of symmetrical components none of these the sequence networks do not have mutual couplings the number of equations become lesser the result are in terms of symmetrical components none of these ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which loss in a transformer varies significantly with load? Eddy current loss Core loss Copper loss Hysteresis loss Eddy current loss Core loss Copper loss Hysteresis loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP During O.C test obtained no load losses (core loss)During S.C. test obtained copper loss (load losses)during loaded condition of transformer copper loss more significant than core loss.
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