GETCO Exam Paper (30-11-2008) In distance protection, the relay measures _____ impedance of the line from relay up to the fault point. positive sequence zero sequence negative sequence self positive sequence zero sequence negative sequence self ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The power transmitted will be maximum when sending end voltage is more corona losses are least receiving end voltage is more reactance is high sending end voltage is more corona losses are least receiving end voltage is more reactance is high ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In the parallel operation of transformers, which statement is false transformers transformation ratios same None of these transformers kVA ratings equal transformers voltage ratings same transformers transformation ratios same None of these transformers kVA ratings equal transformers voltage ratings same ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In a dry type transformer, accumulation of dust on the windings and core is likely to cause short circuiting of secondary winding corrosion of core material reduction in heat dissipation short circuiting of primary winding short circuiting of secondary winding corrosion of core material reduction in heat dissipation short circuiting of primary winding ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Directional over current relays have two exciting coils connected across _____ secondary's of two _____ phases T. & P.T., same T. & P.T., different P.T., different T., different T. & P.T., same T. & P.T., different P.T., different T., different ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In a transformer it is difficult to measure the efficiency by output-input measurement methods because losses are abnormally high the output is sinusoidal and hence cannot be measured output is out of phase with respect to input efficiency of transformer is usually high and hence extremely accurate measurements will be necessary losses are abnormally high the output is sinusoidal and hence cannot be measured output is out of phase with respect to input efficiency of transformer is usually high and hence extremely accurate measurements will be necessary ANSWER DOWNLOAD EXAMIANS APP
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