Electrical Machines Reactive power generated or delivered significantly depends on load angle. frequency. excitation. both 1 and 2. load angle. frequency. excitation. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases. remains constant. increases upto a limit and then remains almost constant. decreases. increases. remains constant. increases upto a limit and then remains almost constant. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? no load full load any of the above half load no load full load any of the above half load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard system, the lower limit of the speed imposed by Field resistance. Residual magnetism of the generator. Armature resistance. None of above. Field resistance. Residual magnetism of the generator. Armature resistance. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the motor armature terminal. generator field terminal. generator armature terminal. motor field terminal. motor armature terminal. generator field terminal. generator armature terminal. motor field terminal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 90 V. 30 V. 60 V. 40 V. 90 V. 30 V. 60 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
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