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Commentary by Pigini

Artificial Pollution Tests for Polymeric Insulators

November 11, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, InsulatorsComments (0)

A few years ago, CIGRE WG C4.303 published Brochure 555, “Artificial pollution test for polymer insulators: results of a round robin test”, reporting on comparative pollution tests conducted at seven laboratories on two silicone line insulator samples. The same basic test procedure was utilized as for ceramic insulators, the main difference being that...

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Failures from Improper Insulator Selection

April 29, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, Insulators

A past CIGRE Study Committee session on Overhead Lines discussed the ‘state-of-the-art’ of composite insulator technology. A spectrum of contradictory case histories with these insulators was reported, ranging from complete satisfaction at one end to...

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Smart Insulators for Smart Grids

April 22, 2017 • ARTICLE ARCHIVE, Commentary by Pigini

A number of trends have been driving development of transmission and distribution networks: 1. Expected increase in electrical energy consumption by developing countries; 2. Shift from fossil fuels to electricity for key end use energy sectors worldwide (e.g....

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Polymeric Materials for HV Insulators

March 11, 2017 • ARTICLE ARCHIVE, Commentary by Pigini

It may surprise some but polymeric type insulators have been applied on high voltage lines and at substations since as far back as 1960. The best measure of their success in delivering real benefits versus traditional ceramic technologies is that they now...

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Passing of Two Leaders in Development of Insulation Coordination

March 4, 2017 • ARTICLE ARCHIVE, Commentary by Pigini

This past year, the world’s high voltage community lost two exceptional individuals who, apart from their unique skills, were also unusually charming gentlemen: Lorenzo Thione and Karl Heinz Weck. Among numerous other activities in the industry, Dr. Thione...

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Insulators & Meteorology

Insulators & Meteorology

January 7, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, Editorial Columns

Over the past 24 years of INMR’s existence there have been several tendencies when it comes to R&D for electrical power systems. A first phase, during the 1990s, focused on product innovation and examples are composite insulators and zinc oxide...

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End of Life of Electrical Components: Recycling vs. Disposal

End of Life of Electrical Components: Recycling vs. Disposal

January 2, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, Editorial Columns

The focus when it comes to electrical products and components has traditionally been on quality and performance in service. Increasing public awareness of environmental issues, however, has now led both manufacturers and users to pay much greater attention to...

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‘Externalities’ of Overhead Power lines

‘Externalities’ of Overhead Power Lines

August 13, 2016 • ARTICLE ARCHIVE, Commentary by Pigini

Public opposition and growing environmental awareness now make identifying corridors for new overhead lines an increasingly complex process – especially near densely populated or sensitive areas. Given this, it has become important to examine methodologies...

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