Electrical Lectures
Easy understanding of 3-phase transformer connections (Delta–Delta, Wye–Wye, Delta–Wye and Wye–Delta)
Three-phase voltage transformations can be accomplished by using three phase transformers, which are single devices with all windings constructed on a single iron core. They also can be accomplished by… Read more
Jul 14, 2017 | By Edvard Csanyi
Energy and Power
How to recognize harmonics symptoms – What to look for and where to look?
Finding harmonics problem is relatively easy once you know what to look for and where to look. Harmonics symptoms are usually anything but subtle. This technical article provides some basic… Read more
May 10, 2017 | By Edvard Csanyi
Technical Guide/Paper
Interconnecting mini-grids (up to 200 kW) with the central electric grid
A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW is intended to help meet the widespread need for guidance, standards, and procedures for… Read more
Apr 24, 2017 | By Edvard Csanyi
Technical Guide/Paper
Testing specifications for preventive maintenance of electrical equipment
The scope of work described in this bulletin are recommended practices that are ordinarily used in the field to determine the condition of an electrical power system. These practices can… Read more
Apr 19, 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… 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… Read more
Mar 13, 2017 | By Edvard Csanyi
Energy and Power
Voltage drop calculation methods with examples explained in details
The first consideration for voltage drop is that under the steady-state conditions of normal load, the voltage at the utilization equipment must be adequate. In addition to steady-state conditions, voltage… Read more
Mar 03, 2017 | By Edvard Csanyi
Electric Motor
Ladder logic for special motor control circuits – jogging and plugging
Ladder logic is often used to implement various motor control circuits. Beside standard motor control circuits, there are also special control circuits designed to allow jogging (brief energization of the… Read more
Feb 01, 2017 | By Edvard Csanyi
Industrial Automation
Considerations to take into account when designing PLC ladder logic
Motor control circuits are often implemented using ladder logic. It is so called because the schematic representation of the control circuit resembles a ladder with two vertical rails and a… Read more
Jan 18, 2017 | By Edvard Csanyi
Technical Guide/Paper
Fundamentals Of Electrical And Computer Engineering
Electrical and Computer Engineering (ECE) is a profession that integrates several sub-disciplines including analog and digital circuits and devices, signal processing, communication systems, computer architecture and networking, micro and nanodevices,… Read more
Dec 27, 2016 | By Edvard Csanyi
Technical Guide/Paper
Electrical machines and appliances theory for engineers beginners
A length of wire lying in the magnetic field and in which an EMF is induced is called a coil. The coils used in windings are shown in Figure 1…. Read more
Dec 11, 2016 | By Edvard Csanyi
Energy and Power
Installation tips for prefabricated busbar systems and cables
The term installation configuration, when applied to prefabricated busbar systems and cables – power transport and power distribution in the installation, essentially refers to the geometric requirements of the conductor… Read more
Nov 14, 2016 | By Edvard Csanyi
Energy and Power
Line harmonic currents created by adjustable frequency control
Nonlinear loads like adjustable frequency controls create line harmonics when connected to the AC power distribution system. These harmonic currents are a result of non-sinusoidal current, which is a characteristic of all… Read more
Nov 05, 2016 | By Edvard Csanyi
Cables
Five key factors to the correct cable selection and application
It is essential to know cable construction, characteristics, and ratings to understand problems related to cable systems. However, to correctly select a cable system and assure its satisfactory operation, additional… Read more
Oct 31, 2016 | By Edvard Csanyi
Energy and Power
Aluminium or copper busbar trunking system? What do you say?
These two materials (aluminium and copper) are both physically and economically viable for use as conductors in power busbar trunking systems (BTS). Some manufacturers of busbar trunking systems offer a… Read more
Oct 17, 2016 | By Edvard Csanyi
