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Archive: Category «Electric Motor»

Electric Motor

How to measure insulation resistance of a motor

If the motor is not put into operation immediately upon arrival, it is important to protect it against external factors like moisture, high temperature and impurities in order to avoid… Read more

Jun 09, 2014 | By Edvard Csanyi

How to measure insulation resistance of a motor
Electric Motor

PLC application for reduced voltage-start motor control

Figure 1 shown below illustrates the control circuit and wiring diagram of a 65% tapped, autotransformer, reduced-voltage-start motor control circuit. This reduced voltage start minimizes the inrush current at the start… Read more

Jun 04, 2014 | By Edvard Csanyi

PLC application for reduced voltage-start motor control (photo credit: dmaeuropa.com)
Electric Motor

Motor Starting via Chokes or Resistors

The series-connected chokes (Figure 1) or resistors (Figure 2) reduce the voltage at the motor and hence also the starting current. The starting torque is reduced by around the square… Read more

Mar 07, 2014 | By Edvard Csanyi

Motor Starting via Chokes or Resistors
Electric Motor

Identity Card of Every Asynchronous Motor

A motor is characterized by different electrical and constructional parameters which identify its correct application field. The whole of all these parameters constitutes the rating of the machine and is… Read more

Nov 18, 2013 | By Edvard Csanyi

Identity Card of Every Asynchronous Motor
Electric Motor

4 motor designs identified in NEMA MG1

Performance requirements for various types of induction motors for use on standard sinewave power supplies are identified in NEMA MG1. Some of these types of motors are suitable for use… Read more

Nov 01, 2013 | By Edvard Csanyi

4 motor designs identified in NEMA MG1
Electric Motor

Drive Design in Electric Vehicles

Good Evening all, in this session I’m going to present some of the issues in drive design in the field of Electric Vehicle. I’ve organized the whole series into modules… Read more

Aug 21, 2013 | By Vishy

Drive Design in Electric Vehicles
Electric Motor

Motor Service Factor (SF) Defined By NEMA

Motor Service Factor (SF) is the percentage of overloading the motor can handle for short periods when operating normally within the correct voltage tolerances. This is practical as it gives… Read more

Aug 07, 2013 | By Edvard Csanyi

Motor Service Factor (SF) Defined By NEMA


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