MiCOM P139 – Feeder Management and Bay Control
MiCOM P139 is a cost-effective one-box solution for integrated numerical time-overcurrent protection and control. The unit’s protection functions provide selective short-circuit protection, ground fault protection and overload protection in medium-… Read more
Mar 30, 2011 | By Edvard Csanyi
Lights up, the facts about lighting!
Illuminance is light falling on a surface measured in footcandles or lux. Distributed with an economic and visual plan, it becomes engineered lighting and, therefore, practical illumination. A lighting designer… Read more
Mar 28, 2011 | By Edvard Csanyi
Offshore wind farms – transmission cables
The European wind power industry is increasingly turning to the offshore wind resource, and the United States will draw on the Europeans’ experience as we begin to plan offshore wind… Read more
Mar 23, 2011 | By Edvard Csanyi
Benefits of biomass energy
Biomass in the form of fuelwood was perhaps the first energy source used by human beings and was the main fuel till the industrial revolution, after which fossil fuels like… Read more
Mar 16, 2011 | By Edvard Csanyi
Induction machines – historical touch
Faraday discovered the electromagnetic induction law around 1831 and Maxwell formulated the laws of electricity (or Maxwell’s equations) around 1860. The knowledge was ripe for the invention of the induction… Read more
Mar 15, 2011 | By Edvard Csanyi
District heating – Heat from a central boiler plant
District heating is a system which provides a number of buildings with heat from a central boiler plant through pre-insulated pipes. Pre-insulated pipes are in fact a modern kind of… Read more
Mar 03, 2011 | By Edvard Csanyi
Protection Relay – ANSI Standards
In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices… Read more
Feb 22, 2011 | By Edvard Csanyi
What Light Source To Choose?
One of the first decisions in the design of a good lighting system is the choice of a light source. A number of light sources are available, each with its… Read more
Feb 17, 2011 | By Edvard Csanyi
AC Vs. DC
What’s this thing about AC anyway? A little history lesson might be in order. It all started when Edison built the first incandescent bulb and the power station to light… Read more
Feb 08, 2011 | By Edvard Csanyi
How To Reduce Energy Cost?
The main motivation for decision makers to take an interest in energy control solutions is economic efficiency. When deciding whether to invest in improvement work, the manager of a building,… Read more
Jan 28, 2011 | By Edvard Csanyi
Price Of A Transformer
Today the production of transformers is characterised by a large variety of designs, manufactured in relatively short batches to meet the demands of a variety of customers with ever-changing expectations…. Read more
Jan 26, 2011 | By Edvard Csanyi
Transients – Line Disturbances
Lightning strikes and switching transients on power lines will propagate down the line and eventually arrive at a substation. There, the voltage will be clamped by lightning arresters to a… Read more
Jan 21, 2011 | By Edvard Csanyi
Can I Connect Wind Turbine to the Utility Grid?
Small wind energy systems can be connected to the electricity distribution system and are called gridconnected systems. A grid-connected wind turbine can reduce your consumption of utility-supplied electricity for lighting,… Read more
Jan 20, 2011 | By Edvard Csanyi
Gas-Insulated Transmission Line – GIL
The gas-insulated transmission line (GIL) is a system for the transmission of electricity at high power ratings over long distances. In cases where overhead lines are not possible, the GIL… Read more
Jan 12, 2011 | By Edvard Csanyi
Transformer Losses Standards
Unlike many countries around the world, Europe has no mandatory standard on energy efficiency of distribution transformers. The two main documents which describe losses in transformers are: the European Standard… Read more
Jan 07, 2011 | By Edvard Csanyi