Electric Motor
AC Adjustable Speed Drive (ASD) – An Overview
The simplest and least expensive way to control the speed of a process or piece of equipment is to operate all the equipment at full speed. Many applications require the… Read more
Jul 19, 2012 | By Edvard
Electric Motor
Soft Starter In Industrial Applications
An induction motor connected directly to the power supply draws a constant magnetizing current at full speed, no matter what the load is. At anything less than full load, power… Read more
Jun 16, 2012 | By Edvard
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
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
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
Electric Motor
VSD – Power supply connections and earthing
In accordance with accepted practice and the local, power is normally provided to a VSD from a distribution board (DB) or a motor control center (MCC). Adequate arrangements should be… Read more
Apr 13, 2011 | By Edvard
IEC Standards
EN61800-3 (IEC1800-3) – Adjustable speed electrical power drive systems
The countries of the European Economic Area (EEA) have agreed on common minimum regulatory requirements in order to ensure the free movement of products within the EEA. The CE marking… Read more
Jan 14, 2011 | By Edvard
Variable Speed Drives
The Best Applications For Variable Frequency Drives (VFDs)
Advances The most commonly used motor in building HVAC applications is the three-phase, induction motor, although some smaller applications may use a single-phase induction motor. VFDs can be applied to… Read more
Sep 03, 2010 | By Edvard
