Cable Insulation Properties

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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

Photovoltaic (PV) Panel - Performance Modelling

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In an earlier note on the site [Photovoltaic (PV) - Electrical Calculations], the theory of solar (PV) cell calculations was introduced.  In particular the post looked at the PV cell equivalent circuit and the electrical characteristics of the cell.  This note expands on the previous post and shows how we can use tools......Read More..

By Steven McFadyen on Wednesday, January 07, 2015

Three Phase Current - Simple Calculation

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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

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