Author Archives: PQBlog

Knowing IEC 61000-4-30 Class A

Published by Elspec Power quality refers to a set of electrical boundaries defined by various documented rules designed to allow electrical equipment to function in its intended manner without significant loss of performance or life expectancy, this includes the steady and stable supply of electricity delivered by the grid. In order to achieve this aimContinue reading “Knowing IEC 61000-4-30 Class A”

What is Harmonic Study and Analysis and Why it is Done?

Published by Carelabs (Carelabz) The current significant growth in electronic devices focusing providing our installations has given rise to a significant change in the last few years on the type of loads connected to the electrical distribution system. Not so long ago the only concern there was when using electricity at home, in establishments andContinue reading “What is Harmonic Study and Analysis and Why it is Done?”

What is Earth Grounding?

Published by Carelabs (Carelabz) IEEE defines earth as a conducting connection, whether intentional or accidental, by which an electric circuit or equipment is connected to the Earth, or to some conducting body of relatively large extent that serves in place of the earth. The connection(s) to Earth are done by an assortment of metallic means intended to beContinue reading “What is Earth Grounding?”

FLEX-CORE® Glossary of Terms

Published by FLEX-CORE®, Div. Morlan & Associates, Inc. Current Transformers Usually rated on a basis of 5 amperes secondary current and used to reduce primary current to usable levels for transformer-rated meters or transducers and to insulate and isolate them from high voltage circuits. Current Transformer Ratio Ratio of primary to secondary current. For aContinue reading “FLEX-CORE® Glossary of Terms”