Fractional Kilowatt Motors

Fractional Kilowatt Motors:

AC Series Motor : A series motor can be run from either dc or ac (single-phase) supply provided that both stator and rotor cores are laminated to limit the iron-loss. Figure 10.43 is the cross-sectional view of …


Circuit Model of Single phase Induction Motor : Circuit Model of Single phase Induction Motor – The winding unbalance and the fact that both the main and auxiliary windings are fed by the same supply result in …


Comparison of Single phase and 3 phase Induction Motors : Comparison of Single phase and 3 phase Induction Motors – In a 3-phase induction motor the maximum torque is independent of the rotor resistance, while the slip …


Hybrid Stepper Motor : Hybrid Stepper Motor -This is in fact a PM stepper motor with constructional features of toothed and stacked rotor adopted from the variable-reluctance motor. The stator has only one set of winding-excited poles …


Permanent Magnet Stepper Motor : Figure 10.39 shows the phases (stacks) of a 2-phase, 4-pole permanent magnet stepper motor. The rotor is made of ferrite or rare-earth material which is permanently magnetized. The stator stack of phase …


Shaded Pole Motor : Shaded Pole Motor – Figure 10.17 shows a typical shaded-pole motor with a squirrel-cage rotor. A small portion of each pole is covered with a short-circuited, single-turn copper coil called the shading coil. …


Single Phase 2 winding Motor : To understand the field phehttps://ijsrm.in/index.phpnomenon that contributes towards the generation of starting torque in a single-phase motor, it greatly helps to first study a balanced 2-phase motor. Figure 10.10 shows a …


Single Phase Induction Motors : A Single Phase Induction Motors comprises a single-phase distributed winding on the stator and normal squirrel-cage rotor as shown schematically in Fig. 10.1 wherein for convenience the stator winding is shown in concentrated …


Single phase Synchronous motors : Single phase Synchronous motors – The 3-phase reluctance motor has already been discussed as an unexcited salient-pole synchronous machine in Sec. 8.11. The expression for reluctance torque of a single-phase device was …


Split phase Motor : Split phase Motor -When a motor is provided with two windings, even though these are excited from the same voltage (supply being single-phase), the currents in the two windings can be made out-of-phase …


Stepper Motor : The stepper motor is a special type of synchronous motor which is designed to rotate through a specific angle (called a step) for each electrical pulse received by its control unit. Typical step sizes …


Two phase Servomotor : Two phase Servomotor – For a low-power (a few hundred watts) control application, a 2-phase (balanced) servomotor is ideally suited as it can be driven by means of a relatively rugged (drift-free) ac …