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Archive: Category «Electric Motor»

Electric Motor

Advantages of Variable Speed Motors

Most motors are designed to operate at a constant speed and provide a constant output. While in many cases this may be more than adequate, it is not in all…. Read more

Jun 13, 2012 | By Edvard

Danfoss AKD Variable Speed Drives
Electric Motor

Direct On Line (DOL) Motor Starter

Different starting methods are employed for starting induction motors because Induction Motor draws more starting current during starting. To prevent damage to the windings due to the high starting current… Read more

Apr 22, 2012 | By jiguparmar

Direct Online Motor Starter - Square D
Electric Motor

Why do we find electric motor drive very important?

Electric motors impact almost every aspect of modern living. Refrigerators, vacuum cleaners, air conditioners, fans, computer hard drives, automatic car windows, and multitudes of other appliances and devices all use… Read more

Feb 29, 2012 | By Edvard

Electric Motor

Synchronous Motor Construction

Synchronous motors convert electrical power to mechanical power and synchronous generators convert mechanical power to electrical power; and synchronous condensers supply only reactive power to stabilize system voltages. Synchronous motors, generators, and… Read more

Jan 14, 2012 | By Edvard

Synchronous Motor Construction
Electric Motor

How to select AC converter for VSD?

Altough manufacturers’ catalogues try to make it easy as possible, there are many variables associated with the selection and rating of the optimum electric motor and AC converter for a… Read more

Jan 06, 2012 | By Edvard

Variable Speed Drives (VSD's) used for submersible pumps
Electric Motor

NEC Code for Size of Cable for Motor

Size of Cable for Branch circuit which has Single Motor connection is 125% of Motor Full Load Current Capacity. What is the minimum rating in amperes for Cables supplying 1… Read more

Dec 30, 2011 | By jiguparmar

Motor terminal box
Electric Motor

The Cage Induction Motor Explained In Details

This simplest form of AC induction motor or asynchronous motor is the basic, universal workhorse of industry. Its general construction is shown in Fig. 1. It is usually designed for… Read more

Dec 29, 2011 | By Edvard

Three phase squire cage induction motor, fully enclosed and fan-cooled
Electric Motor

Motor starting problem and high motor inrush currents

Electric motor protection device depends on the accurate and correct selection of overload(s), fuses and/or circuit breakers. Over the years the protective devices have been selected according to the applicable… Read more

Dec 23, 2011 | By Edvard

Allen Bradley Motor Controller/Starter Bucket
Electric Motor

5 steps to choose the best motor for your application

For line-operated motors, loads fall into three general categories: constant torque, torque that changes abruptly, and torque that change gradually over time. Bulk material conveyors, extruders, positive displacement pumps, and… Read more

Dec 03, 2011 | By Edvard

Few steps you should know before choosing best motor for your application
Electric Motor

Why do we need variable speed drives (VSD)?

There are many and diverse reasons for using variable speed drives. Some applications, such as paper making machines, cannot run without them while others, such as centrifugal pumps, can benefit… Read more

Nov 25, 2011 | By Edvard

Danfoss - VLT AutomationDrive Series


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