Electric Motor
Sizing of motors and frequency converters for a particular machine load
Manufacturers of electric motors and frequency converters have evolved various methods for quickly selecting the size of motors and frequency converters for a particular machine load. The same basic procedure… Read more
Dec 12, 2016 | By Edvard
Electric Motor
Traditional Star-Delta motor starting method used in practice
Due to their simplicity, robustness and cost-effectiveness, squirrel cage motors are the preferred choice of industry. During start-up, they develop currents of up to approximately 8 times the rated current… Read more
Nov 18, 2016 | By Edvard
Electric Motor
Wiring of control power transformer for motor control circuits
The motor branch circuit is usually a segment of a larger electrical distribution network in an industrial plant. The motor circuit supplies the required power to the various control devices… Read more
Oct 28, 2016 | By Edvard
Electric Motor
14 electrical characteristics of the motor you should know
Electrical characteristics like voltage, frequency and phase of power supply should be consistent with the motor nameplate rating. A motor will operate satisfactorily on voltage within 10% of nameplate value,… Read more
Oct 24, 2016 | By Edvard
Electric Motor
Practical tips for installation and using of thermistor motor protection
Thermistor is a small non-linear resistance sensors, which can be embedded within the insulation of a motor winding, to provide a close thermal association with the winding. It’s made from… Read more
Oct 14, 2016 | By Edvard
Electric Motor
What details a motor nameplate shows and how to use them
We have all seen the motor nameplate attached on the motor side (or on top). All motors have a permanent nameplate which lists all important data, further data is usually available… Read more
Aug 26, 2016 | By Edvard
Electric Motor
Motor wiring guidelines (Cable shielding, grounding and splicing techniques)
This technical article describes shielding, grounding, and splicing techniques for use with motor wiring. This article covers the following topics: Understanding noise in motor power wiring Shielding motor power cables… Read more
Aug 19, 2016 | By Edvard
Electric Motor
6 Common Setting Parameters Available On Most Of The Softstarters
This technical article includes a short description of six common setting parameters available on most of the softstarters. Other settings may be available depending on the type of softstarter and manufacturer…. Read more
Jun 27, 2016 | By Edvard
Electric Motor
12 Basic Motor Types Used For Industrial Electric Drives
Almost all modern industrial and commercial undertakings employ electric drive in preference to mechanical drive because it possesses the following advantages : It is simple in construction and has less… Read more
Jun 21, 2016 | By Edvard
Electric Motor
Why does electric motor fail and what can you do about it?
As you already know, electric motor is used everywhere in industry and in term of technology – it’s already pretty complex, sometimes making it a challenge to keep it running at… Read more
Jun 16, 2016 | By Edvard
Electric Motor
A few tips on how to select contactors for use in direct on line starters
Contactors for use in direct on line starters (DOL) are normally selected by their AC3 rating, that is the switching on of a cage type induction motor and switching off… Read more
May 09, 2016 | By Edvard
Electric Motor
Every car has it – The Lundell generator with claw-pole rotor
Increasing comfort and safety in cars, trucks, and buses driven by combustion engines require more installed electric power on board. As of now, the Lundell generator (claw-pole rotor generator) is the… Read more
May 06, 2016 | By Edvard
Electric Motor
Two Basic Methods Used For Braking a Motor (DC Injection and Dynamic)
Two common basic methods used for braking a motor are DC injection braking and dynamic braking. We will look at both in detail, starting with electric braking. DC Injection Braking… Read more
Apr 18, 2016 | By Edvard
Electric Motor
3 reasons for increased efficiency loss in rewound motors
Approximately 300,000 motors are rewound in the UK every year, with an average rating of about 12 kW, so the efficiency of rewound motors is extremely important. The loss in… Read more
Mar 07, 2016 | By Edvard
Electric Motor
Regular Motor Maintenance To Avoid Failure (and Prolong Its Lifespan)
A well and carefully designed motor maintenance program, when correctly used, can be summed up as preventive maintenance, predictive maintenance and reactive maintenance. Inspection cycles depend upon the type of… Read more
Feb 29, 2016 | By Edvard
