Transformers
TRIHAL – Dry type cast resin HV/LV transformer
Trihal is a three-phase dry type transformer cast under vacuum in epoxy resin with an active filler. It is this active filler, essentially composed of trihydrated alumina, which is the… Read more
May 22, 2011 | By Edvard Csanyi
Energy and Power
Testing of UPS devices
The purpose of electrical testing on systems and their components is two-fold. The first is to check the installation of the equipment and perform component and systems tests to ensure… Read more
May 15, 2011 | By Edvard Csanyi
Maintenance
Maintenance Of Meduim Voltage Circuit Breakers
Medium-voltage circuit breakers rated between 1 and 72 kV may be assembled into metal-enclosed switchgear line ups for indoor use, or may be individual components installed outdoors in a substation…. Read more
Apr 17, 2011 | By Edvard Csanyi
Renewable Energy
Are renewable resources practical?
While few people disagree that renewable energy is a good idea, most also recognize there are two practical barriers to implementation on a wide scale. First, all renewable energy sources,… Read more
Apr 01, 2011 | By Edvard Csanyi
Lighting
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
Energy and Power
Calculating lightning strike distance
Return stroke current magnitude and strike distance (length of the last stepped leader) are interrelated. A number of equations have been proposed for determining the striking distance. The principal ones… Read more
Mar 09, 2011 | By Edvard Csanyi
High Voltage
Economics of GIS
The equipment cost of GIS is naturally higher than that of AIS due to the grounded metal enclosure, the provision of an LCC, and the high degree of factory assembly…. Read more
Mar 04, 2011 | By Edvard Csanyi
HVAC
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
Lighting
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
SCADA
iFIX Scada Features
iFIX offers a robust SCADA engine, rich set of connectivity options, open architecture and highly scalable and distributed networking model. Used in a variety of applications across diverse industries, it… Read more
Feb 15, 2011 | By Edvard Csanyi
Hydropower
Few Facts About Three Gorges Dam
The Three Gorges Dam is the world’s largest hydropower project and most notorious dam. The massive project sets records for number of people displaced (more than 1.2 million), number of… Read more
Feb 12, 2011 | By Edvard Csanyi
Energy and Power
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
Transformers
How To Connect Current Transformers?
The primary of a current transformer typically has only one turn. This is not really a turn or wrap around the core but just a conductor or bus going through… Read more
Jan 29, 2011 | By Edvard Csanyi
Energy and Power
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
Transformers
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
