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Cable Insulation Properties

Cable insulation is used to provide electrical separation between conductors of a cable. During the historical development of cables, numerous types of insulation have been employed. During recent years, there has been some consolidation in the types of insulation used. This post provides some information on the more......Read More..

By Steven McFadyen on Tuesday, May 15, 2012

Variable Frequency Drive

Variable frequency drives are widely used to control the speed of ac motors. This note looks at the mechanisms which enable drive units to control the speed. In addition to speed, other advantages offered by variable speed drives are investigated....Read More..

By Steven McFadyen on Wednesday, March 28, 2012

Three Phase Current - Simple Calculation

The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and again. While some colleagues prefer to remember formulas or factors, I prefer to resolve the problem step by step using basic principles. I thought it would be good to write......Read More..

By Steven McFadyen on Sunday, March 01, 2009

Community Activity

MichaelM asked the question Selection of Live vs Dead tank CB

1 day ago

mhartridge asked the question Appropriate Cable Insulation

4 days ago

Steven McFadyen answered the question AC Current

4 days ago

sandeep saharan asked the question AC Current

1 week ago

arunkumar asked the question neutral to earthing voltage

1 week ago

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