Energy and Power
The Advantages Of Maintaining A High Power Factor
A high power factor eliminates penalty dollars imposed when operating with a low power factor. For many years, most utilities demanded a minimum of 85% power factor as an average… Read more
Feb 03, 2011 | By Edvard
Electric Motor
Operating Principle Of Three Phase Asynchronous Motors
The operating principle of an asynchronous motor involves creating an induced current in a conductor when the latter cuts off the lines of force in a magnetic field, hence the… Read more
Feb 02, 2011 | By Edvard
Low Voltage
The Switchboard Design Requirements
The following rules of design have to be implement in the aim to facilitate the assembly and especially the maintenance of the installation. The switchboard must be designed the way… Read more
Feb 01, 2011 | By Edvard
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
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
Low Voltage
Form of separation 1 – Requirements
In general, the price of an Assembly will increase with increased levels of separation and/or types of construction. Choosing the arrangement with the most internal barriers will not always lead… Read more
Jan 27, 2011 | By Edvard
Energy and Power
Grounded Systems
Grounded systems are equipped with a grounded conductor that is required per NEC Section 250- 23(b) to be run to each service disconnecting means. The grounded conductor can be used… Read more
Jan 26, 2011 | By Edvard
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
Electronics
Ethernet History
Ethernet is the most popular and widely deployed network technology in the world. In 1973, while working on a way to link the Xerox “Alto” computer to a printer, Bob… Read more
Jan 25, 2011 | By Edvard
Geothermal Energy
Geothermal Energy – The Hot Facts
The word “geothermal” comes from the Greek words geo (earth) and thermal (heat). It means the heat of earth. The energy potential beneath our feet, in the form of geothermal… Read more
Jan 24, 2011 | By Edvard
Energy and Power
Ecodial 3 – FAQ’s
Remark : You may renumber the functional names with the Automatic numbering of the View menu. Version 3.2 of Ecodial works from a cable database. If such a cable exists… Read more
Jan 22, 2011 | By Edvard
Wind Power
How Do I Choose the Best Site for My Wind Turbine?
You can have varied wind resources within the same property. In addition to measuring or finding out about the annual wind speeds, you need to know about the prevailing directions… Read more
Jan 21, 2011 | By Edvard
High Voltage
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
Wind Power
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
Power Substation
Substation Ventilation Requirements – Ergon
Substations require special attention to ventilation in order to dissipate heat losses from electrical equipment. Wherever possible, natural air flow to the outside of the building will be used. Forced… Read more
Jan 19, 2011 | By Edvard
