phase , star connection , 7460 kW , 6000 V , 50 Hz synchronous motor While feeding a load with a power factor of 0.8 ahead of the motor, its efficiency is % 92 percent.    The Armature Resistance 0,5 ohm ,   synchronous reactance 4,2 ohm. Stator windings are connected to infinite load. Engine shaft got the % 75 percent of mechanic power. a) amplitude value of the current passing through the phase windings of the motor ?? b) pole wheel voltage induced in motor ?

Q: A 6-pole, 60Hz, Three-phase induction motor delivers 9.9hp with an input of 9200 watts. The core…

A:

Q: This question uses construction skills to determine the machine characteristics. A three-phase…

A: For a  three-phase delta-connected synchronous induction motor,

Q: A 3-phase, 2-pole-pair, induction machine operates at 1450 revolutions per minute when fed from a…

A:

Q: A three-phase, 60 Hz, squirrel-cage induction motor draws a current of 385 amps per phase and a…

A:

Q: A 15 kW, 400 V, 3 phase, 50 Hz, 6 pole induction motor has a diameter of 0.3 m and the length of…

A:

Q: Given the following information: (Note: Values were determined for operations at 60 Hz.) Three-Phase…

A:

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.