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Monthly Archive for: «November, 2011»

Monthly download updates – New service!

We’re happy to inform you that we started new service – monthly newsletter alert for download updates in our sections: Electrical Software (visit section ») (Photometric, MV/LV network analysis, voltage drop and… Read more

Nov 28, 2011 | Edvard

electrical-engineering-download-updates-front

Power Semiconductor Device – MOSFET

Power MOSFETs are marketed by different manufacturers with differences in internal geometry and with different names such as MegaMOS, HEXFET, SIPMOS, and TMOS. They have unique features that make them potentially attractive… Read more

Nov 27, 2011 | Edvard

TKxP Power MOSFETs in DPAK Package from Toshiba

Why do we need variable speed drives (VSD)?

There are many and diverse reasons for using variable speed drives. Some applications, such as paper making machines, cannot run without them while others, such as centrifugal pumps, can benefit from energy… Read more

Nov 25, 2011 | Edvard

Danfoss - VLT AutomationDrive Series

A Look at the Power Rating of Resistors

You may be asked: “what is the power rating of the resistors you want to buy?” when buying a resistor to build a certain circuit. For the most standard class of resistors,… Read more

Nov 24, 2011 | elaina

Figure 1 - Common form of resistor

Motors And Drives For Efficient Control – ABB

With electric motors accounting for an estimated 65 percent of industrial energy use, any increases in efficiency clearly provide the potential for major savings. The energy consumption of electric motors can be… Read more

Nov 23, 2011 | Edvard

ABB Motors and Drives

Fire Properties Of Cables

This is an area of increasing public and legislative concern, and therefore of increasing interest to engineers. There have been major advances in the fire performance of cables in recent years, and… Read more

Nov 21, 2011 | Edvard

KBS cable coating fire protection
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