Editorial Columns

Hydrophobicity: What is the Real Impact?

August 19, 2017 • ARTICLE ARCHIVE, Silicone Technology Review

The term ‘hydrophobicity’ has by now become an all too familiar catchword in the power industry. Yet many users of hydrophobic materials and those that provide hydrophobicity transfer are still not fully aware of...

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Revising IEC 60815

August 12, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, Editorial Columns

Specifications contained in IEC 60815 “Selection and dimensioning of high-voltage insulators intended for use in polluted conditions” are the result of...

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Standardizing Recommended Creepage in DC

July 22, 2017 • ARTICLE ARCHIVE, Reporting from CIGRE

Today’s demand for integrating renewables into energy supply has made HVDC transmission a much more interesting option than in the past. This is triggered by...

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Improved Measurement of Electrical Strength

July 15, 2017 • ARTICLE ARCHIVE, Silicone Technology Review, Utility Practice & Experience

Dielectric Strength. Electrical strength. Breakdown voltage. Breakdown field strength. These are just some of the different terms found in datasheets used to...

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Using Less Creepage for Silicone Insulators

July 8, 2017 • ARTICLE ARCHIVE, Insulators, Scene from China

Composite insulators are today quite widely used and well-accepted throughout the world. In China, for example, there several million such insulators already...

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Growing Importance of Testing HVDC Components

July 8, 2017 • ARTICLE ARCHIVE, From the World of Testing

High voltage direct current (HVDC) has rapidly become one of the hottest topics in transmission. Since the first HVDC connections date all the way back to the...

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Importance of Line Entrance Arresters

July 1, 2017 • Arresters, ARTICLE ARCHIVE, Woodworth on Arresters

At most air-insulated substations, the arrester mounted at the transformer is close enough to other equipment to provide effective protection from flashover....

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When to Remove an Arrester from Service

June 24, 2017 • Arresters, ARTICLE ARCHIVE, Editorial Columns, Woodworth on Arresters

Over the years, I have been asked this many times. The reply is not always straightforward since a number of competing considerations need to be taken into...

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