myElectrical Home

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

ram31 commented on How major rectifer load?

8 hours ago

ram31 answered the question Appropriate Cable Insulation

9 hours ago

ram31 answered the question Machine Neutral to Earth Voltage

9 hours ago

ram31 answered the question AC Current

9 hours ago

ram31 commented on How to calculate electrical connected load.

9 hours ago

myElectrical Tools

We have tools to help. Our tools range from assisting with basic calculations to IET compliant cable sizing. Feel free to browse and try.

Units Conversion
Complex Number Calculator
3-Phase Calculations
IEE Cable Sizing
Circuit Protective Conductor
Power Factor Correction

even more tools...

Contribute

Notes

Notes is a collaborative collection of electrical engineering information and educational material. Why not consider adding your knowledge and help make a better Notes for everyone.

Have something interesting to share or some hidden knowledge why not add a post. Sharing your thoughts and ideas is a great way to pass on knowledge. Who knows you may even become famous along the way.

Learn More