Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 2.73 KW. 5.46 KW. 0.9103 KW. 1.644 KW. 2.73 KW. 5.46 KW. 0.9103 KW. 1.644 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on both 1and 2 load angle synchronous reactance excitation both 1and 2 load angle synchronous reactance excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase transformer the magnitude of leakage reactance is twice that of resistance of both primary and secondary. With secondary short circuited, the input power factor is 1/√2 1/√5 2/√5 1/3 1/√2 1/√5 2/√5 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will reduce by 5 %. depend on other factors. increase by 5 %. remain unchanged. reduce by 5 %. depend on other factors. increase by 5 %. remain unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as they have maximum efficiency and maximum starting torque. these are cheaper in cost, simple and rugged in construction. they are capable of operation under range of leading and lagging pf. they have very good speed regulation. they have maximum efficiency and maximum starting torque. these are cheaper in cost, simple and rugged in construction. they are capable of operation under range of leading and lagging pf. they have very good speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 18° 30° 20° 60° 18° 30° 20° 60° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS