What Is The Poor Power Quality?
Most electrical and electronic equipment is designed to operate from a power supply with a particular specification that usually defines the minimum and maximum limits for RMS (root mean-square) voltage… Read more
Jun 05, 2015 | By Edvard Csanyi
4 power transformer protection devices explained in details
The power transformer protection is realized with two different kinds of devices, namely the devices that are measuring the electrical quantities affecting the transformer through instrument transformers and the devices… Read more
Apr 20, 2015 | By Edvard Csanyi
Configurations and characteristics of distribution substations
Distribution substations come in many sizes and configurations. A small rural substation may have a nominal rating of 5 MVA while an urban station may be over 200 MVA. Figures… Read more
Apr 13, 2015 | By Edvard Csanyi
Network distribution transformers serving grid and spot networks
Network transformers, the distribution transformers that serve grid and spot networks, are large three-phase units. Network units are normally vault-types or subway types, which are defined as (ANSI C57.12.40-1982): Vault-type… Read more
Apr 08, 2015 | By Edvard Csanyi
Important primary distribution (radial and loop) system considerations
The primary distribution system is that part of the electric distribution system between the distribution substation and distribution transformers. It is made up of circuits called primary feeders or distribution… Read more
Apr 06, 2015 | By Edvard Csanyi
Good voltage regulation and justified power factor correction
Power factor correction and voltage regulation are closely related. In many cases, the desired voltage regulation is costly to obtain. Larger or paralleled conductors to reduce voltage drop under load… Read more
Apr 01, 2015 | By Edvard Csanyi
Eleven major causes of power system failures
To gain a broader understanding of power system reliability, it is necessary to understand the root causes of system faults and system failures. A description of major failure modes is… Read more
Mar 18, 2015 | By Edvard Csanyi
Why it’s important to know which type of power factor correction to use
It’s important to understand where the capacitors are to be installed for a better exploitation of such advantages. There are no general rules applicable to every type of installation and, in… Read more
Mar 09, 2015 | By Edvard Csanyi
Ring Main Unit (RMU) as an important part of secondary distribution substations
A Ring Main Unit (RMU) is a totally sealed, gas-insulated compact switchgear unit. The primary switching devices can be either switch disconnectors or fused switch disconnectors or circuit breakers. Different… Read more
Feb 11, 2015 | By Edvard Csanyi
Emergency Lighting Power Supply in Data Center
Lighting is defined as emergency lighting when it is intended for operation when standard lighting fails. Emergency lighting must be powered by an independent energy source (typically a central power… Read more
Feb 06, 2015 | By Edvard Csanyi
Complete Guide To Wind Power Plants
In the study of wind turbines injecting power into the grid, the last is often considered ideally with infinite short-circuit power. Therefore it cannot be influenced by the connection of… Read more
Jan 17, 2015 | By Edvard Csanyi
The consumer power substation with metering on medium voltage side
A consumer power substation with metering on medium voltage side is an electrical installation connected to a utility supply system at a nominal voltage usually between 1kV – 35kV, which… Read more
Jan 12, 2015 | By Edvard Csanyi
8 Major Advantages of Distribution Automation
More and more electric utilities are looking to distribution automation as an answer to the three main economic challenges facing the industry: The rising cost of adding generating capacity, Increased… Read more
Jan 05, 2015 | By Edvard Csanyi
Test On 110kV Power Cable After Installation (1)
Site test procedure covers all necessary electrical testing for the 110 kV cable and accessories to be carried out during and after installation of the cable system. This procedure is… Read more
Dec 22, 2014 | By Zafar Iqbal
Mineral oil-filled distribution transformer as one of the main part of electrical supply system
As you already know, this is the most common type of distribution transformer. It is one of the most important part and can be found on electrical supply systems in… Read more
Nov 19, 2014 | By Edvard Csanyi