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Archive: Category «Electric Motor»

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

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

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

Motor Service Factor (SF) Defined By NEMA
Electric Motor

Selection Of Crane Duty Motors (Part 3)

Continued from second part: Selection Of Crane Duty Motors (Part 2) N = Duration of motor operation under rated conditions R = Duration of motor at rest and de-energised ØMax… Read more

Jul 27, 2013 | By Ashok Parikh

Selection Of Crane Duty Motors
Electric Motor

Selection Of Crane Duty Motors (Part 2)

Continued from first part: Selection Of Crane Duty Motors (Part 1) Following two types of motors are widely used for crane duty applications. Squirrel Cage Crane Duty Motors Slip ring… Read more

Jul 24, 2013 | By Ashok Parikh

Selection Of Crane Duty Motors (Part 2)
Electric Motor

Selection Of Crane Duty Motors (Part 1)

The operating conditions such as duty cycle, startup, temperature and operating environment are vital considerations in the motor efficiency and reliability. It is absolutely essential to match the motors to… Read more

Jul 22, 2013 | By Ashok Parikh

Selection Of Crane Duty Motors
Electric Motor

What is the rewind scenario if a motor fails?

Unlike an initial motor purchase where your decision is limited to procuring a standard versus a premium efficiency motor, a motor failure or burnout produces three alternatives. Your options are… Read more

Jul 10, 2013 | By Edvard

What is the rewind scenario if a motor fails?


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