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Archive: Category «Electric Motor»

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 Csanyi

What is the rewind scenario if a motor fails?
Electric Motor

Few Words About Capacitor-Start (CS) Motors

The capacitor-start (CS), or more precisely, capacitor-start, induction-run motor, is a modified split-phase induction motor used for hard-to-start loads. CS motors are efficient and require starting currents about 5 times… Read more

Jun 14, 2013 | By Edvard Csanyi

Start-run capacitor single-phase induction motor (Source ABB)
Electric Motor

Split-phase motors for medium-duty applications

The split-phase (SP), or more accurately, the resistance-start, split-phase, induction run motor,is recommended for medium-duty applications. It can run at constant speed even under varying load conditions where moderate torque is… Read more

Jun 12, 2013 | By Edvard Csanyi

Split-phase motors for medium-duty applications
Electric Motor

Three Phenomenons In The Iron Of AC Machines

Most of our practical AC machines (motors, generators ad transformers) depend heavily on the magnetic field for operation. The core iron of the machine provides a path for the magnet… Read more

May 29, 2013 | By Edvard Csanyi

Three phenomenons in the iron of AC machines
Electric Motor

Induction motor startup and losses calculation

The main objectives while starting an induction motor are: To handle high-starting current To achieve high-starting torque. As we know, rotor resistance determines starting torque. Usually, this rotor resistance is small,… Read more

Mar 25, 2013 | By Edvard Csanyi

Induction motor startup and losses calculation
Electric Motor

Starting Motor With Auto-transformer

An auto-transformer starter makes it possible to start squirrel-cage induction motors with reduced starting current, as the voltage across the motor is reduced during starting. In contrast to the star-delta… Read more

Mar 18, 2013 | By Edvard Csanyi

Starting Motor With Auto-transformer
Electric Motor

Direct Starting Of Squirrel-Cage Induction Motors

The direct starting (Direct On Line, DOL) is the simplest and most cost-efficient method of starting a motor. This is assuming that the power supply can easily deliver the high starting… Read more

Feb 16, 2013 | By Edvard Csanyi

Direct Starting Of Squirrel-Cage Induction Motors


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