Electric Motor
How should facilities optimize their power consumption due to the hiking energy prices?
Nowadays, the enormous energy consumption worldwide has taken a downturn due to the hiking energy prices. Whether it’s gas, oil, or coal, the rising costs forced many facilities worldwide to cut their energy expenses. This is a good moment to… Read more
Dec 05, 2022 | By Edvard Csanyi
Energy and Power
Isolation power solutions for ultimate power availability, efficiency and safety in hospitals
Things are changing fast, really fast. Technology we used a few years ago is now obsolete, and if you take a look for a second – it’s always about power availability, efficiency, and safety. This technical article deals with Schneider… Read more
Aug 04, 2021 | By Edvard Csanyi
Energy and Power
Five actions to achieve excellent energy savings in old electrical installations
Not all existing electrical installations lack energy efficiency, but most of them do. Especially if they were built 15-20 years ago and older. Although it is generally acknowledged that substantial energy savings are possible in most existing installations, the process… Read more
Mar 04, 2020 | By Edvard Csanyi
Energy and Power
How to start with the design of electrical installation?
The power analysis must be always at the very top of your tasks in the design of an electrical installation. It will enable the source(s) to be sized according to the purpose of the installation, the intended use of the… Read more
Feb 11, 2019 | By Edvard Csanyi
Energy and Power
The study of harmonics and LV energy compensation
The harmonic currents are mainly down to the nonlinear loads in the installations. The most frequent harmonic sources are linked to the use of electric arcs (welding, arc furnaces, discharge lamps, etc.) and to magnetic machines. Power electronics (converters, variable… Read more
Aug 20, 2018 | By Edvard Csanyi
Electric Motor
Practical tips on how not to burnout an electric motor
There are many reasons why an electric motor could start heating up. For example, when another starting duty is used then the informed one on the motor nameplate may result in motor overheating and consequent motor damage. Due to high… Read more
Aug 15, 2018 | By Edvard Csanyi
Energy Efficiency
16 power correction devices available to install and really improve the power quality
All modern electronic devices are vulnerable to the poor power quality. But why? What can you do about it? This technical article describes 12 types of power correction devices (16 in total) that accept electrical power in whatever form it… Read more
Jun 18, 2018 | By Edvard Csanyi
Electric Motor
Why Raise the Power Factor? The Basics Every Electrical Engineer Should Understand.
A low power factor causes poor system efficiency. The total apparent power must be supplied by the electric utility. With a low power factor, or a high-kilovar component, additional generating losses occur throughout the system. Figures 1 and 2 below… Read more
Jun 06, 2018 | By Edvard Csanyi
Energy and Power
5 Main Harmonics Generators And Their Detrimental Effects On Industrial Applications
In industrial applications, the main types of equipment that generate harmonics are: static converters, arc furnaces, lighting, saturated reactors and other equipment, such as rotating machines which generate slot harmonics (often negligible). Let’s have a word about each of listed… Read more
Jan 31, 2018 | By Edvard Csanyi
Energy and Power
Three proven ways to reduce electrical energy losses in buildings
As savings in terms of costs are the main concern for the operators, the first approach is to try to reduce electrical energy losses in buildings. Also, the electricity supply network itself consumes energy. Moreover, if it is not suitably… Read more
Jul 24, 2017 | By Edvard Csanyi
Energy and Power
Top six solutions to achieve a high level of energy efficiency in buildings
Energy efficiency in commercial buildings involves providing a given level of performance, cost, quality, availability, and comfort at a minimal level of energy usage throughout the lifecycle of a given asset or process. Generally speaking, energy efficiency involves reducing energy… Read more
Mar 27, 2017 | By Edvard Csanyi
Electric Motor
Why overmotoring an application is not such a good idea
In many instances, the practice has been to overmotor an application, i.e., to select a higher-horsepower motor than necessary. The disadvantages of this practice are: Lower efficiency Lower power factor Higher motor cost Higher controller cost Higher installation costs Let’s… Read more
Mar 13, 2017 | By Edvard Csanyi
Electric Motor
The influence of voltage unbalance on NEMA motor performance
Voltage unbalance can be more detrimental than voltage variation to motor performance and motor life. When the line voltages applied to a polyphase induction motor are not equal in magnitude and phase angle, unbalanced currents in the stator windings will… Read more
Jan 27, 2017 | By Edvard Csanyi
Energy and Power
4 example calculations of compensation for reactive power
First, let’s say some words about basics of the reactive power in system. Reactive current arises in every electrical system. Not only large loads, but smaller loads as well require reactive power. Generators and motors produce reactive power, which causes unnecessary… Read more
Jan 20, 2017 | By Edvard Csanyi
Cables
Specifying energy efficient motor, cabling and local power transformer
Many energy saving actions can encourage specifiers and engineers to look closely at the savings which can be made by specifying an energy efficient version of a particular component. This technical article presents the case for taking the important step… Read more
Jan 09, 2017 | By Edvard Csanyi
