Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of transformer. condition of bushing stud. condition of transformer oil. condition of bushings. condition of transformer. condition of bushing stud. condition of transformer oil. condition of bushings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 3000W 500W 1000W 100W 3000W 500W 1000W 100W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is any of the above infinite value zero maximum any of the above infinite value zero maximum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/Vt ratio of a DC motor is an indication of running torque. starting torque. efficiency. speed regulation. running torque. starting torque. efficiency. speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dynamo with wave wound armature has 51 slots contains 20 conductors in each slot. If induced emf 357 Volts and speed is 8500 rpm, flux per pole will be 1.2 mWb. 2.7 mWb. 3.5 mWb. 1.4 mWb. 1.2 mWb. 2.7 mWb. 3.5 mWb. 1.4 mWb. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During hunting of a synchronous motor damper bar develops torque. harmonic are developed in the armature circuit. field excitation increases. negative phase sequence currents are generated. damper bar develops torque. harmonic are developed in the armature circuit. field excitation increases. negative phase sequence currents are generated. ANSWER DOWNLOAD EXAMIANS APP
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