Power Systems On a power system network the load is increasing represents the value of impedance increase. decrease. remains constant. none of above. increase. decrease. remains constant. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lead 0.6 lead 0.8 lag 0.6 lag 0.8 lead 0.6 lead 0.8 lag 0.6 lag ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 11.8% 15% 88.2% 85% 11.8% 15% 88.2% 85% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The shape of the disc of an induction disc relay is elliptical. none of these. circular. spiral. elliptical. none of these. circular. spiral. ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR increases None of these decreases remains unaffected increases None of these decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are operating time is minimum most economical as a peak load supply plant used as load frequency control All of these operating time is minimum most economical as a peak load supply plant used as load frequency control All of these ANSWER DOWNLOAD EXAMIANS APP
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