Electrical Machines The primary and secondary windings of a transformer are conductively linked. mechanically linked. inductively linked. electrically linked. conductively linked. mechanically linked. inductively linked. electrically linked. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 240 V. 238.2 V. 256.4 V. 271.7 V. 240 V. 238.2 V. 256.4 V. 271.7 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by 0°. about 115°. about 75°. 90°. 0°. about 115°. about 75°. 90°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be less than 10% remain unchanged be more than 10% be 12.5% be less than 10% remain unchanged be more than 10% be 12.5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V dc series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 Ω. The value of resistance which must be added to obtain rated torque at 1000 rpm is 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω 5.7 Ω 2.2 Ω 6 Ω 1.9 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to reduce the saturation in the interpole economise on the material required for interpoles and their windings reduce the overall weight increase the acceleration of commutation reduce the saturation in the interpole economise on the material required for interpoles and their windings reduce the overall weight increase the acceleration of commutation ANSWER DOWNLOAD EXAMIANS APP
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