Motor Starting - Introduction

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Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course, less familiar to others.  This post is a quick introduction to motor starting....Read More..

By Steven McFadyen on Wednesday, August 10, 2011

Tips for a better Low Voltage Protection Discrimination Study

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Carrying out a protection system discrimination study is critical to ensure the correct functioning of  the electrical system in the event of faults.  The IEC defines discrimination as:...Read More..

By Steven McFadyen on Monday, November 03, 2014

What is an Open Delta Transformer

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In three phase systems, the use of transformers with three windings (or legs) per side is common.  These three windings are often connected in delta or star, resulting in common transformer configurations such as delta-delta or delta-star.  An open delta transformer is a special arrangement which uses only two windings......Read More..

By Steven McFadyen on Monday, October 13, 2014

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Steven McFadyen answered the question 3 Phase Current and Load

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Steven McFadyen added a new article Tips for a better Low Voltage Protection Discrimination Study

Discrimination Curves Image Source: Amtech Power Carrying out a protection system discrimination study is critical to ensure the correct functioning of  the electrical system in the event of faults.  The IEC defines discrimination as:

1 week ago

manoj kumar peddi asked the question 3 phase current

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Jens Pfeiffer answered the question Short Circuit Values, Icw, Icp, Icc

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