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Commentary by Pigini

Insulators & Meteorology

Insulators & Meteorology

January 7, 2017 • ARTICLE ARCHIVE, Commentary by Pigini, Editorial ColumnsComments (0)

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 arresters. A second phase, starting at the turn of the century, was marked by development ...

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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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Digital Modeling in Insulation System Design

Digital Modeling in Insulation System Design

July 16, 2016 • ARTICLE ARCHIVE, Commentary by Pigini

Given the evolution in computing power and specialized software, finite element analysis (FEA) has evolved from what used to be a mainly academic pursuit into a much-used tool for product development. Engineering simulation technology, for example, now allows...

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Insulator Performance Under Ice & Snow

Insulator Performance Under Ice & Snow

July 1, 2016 • ARTICLE ARCHIVE, Commentary by Pigini

Flashover problems encountered across the globe confirm that ice and snow can significantly diminish insulator performance and impact grid reliability. Much research has therefore been published on this topic and an excellent review was made by Masoud...

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Insulator End of Life: Recycling vs. Disposal

Insulator End of Life: Recycling vs. Disposal

June 25, 2016 • ARTICLE ARCHIVE, Commentary by Pigini

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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Examples of condition of insulators after electrical & mechanical tests (from CIGRE Paper B2.209).

Reliability of Cap & Pin Insulators

June 17, 2016 • ARTICLE ARCHIVE, Commentary by Pigini

In his landmark (but now hard to find) book Insulators for High Voltages, J.S.T Looms offered the following insight: “The purchase price of insulators, especially those of glass or porcelain, is totally dominated by market forces and bears no relation...

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Pre-Coating RTV Silicone onto Glass Cap & Pin Insulators

Pre-Coating RTV Silicone onto Glass Cap & Pin Insulators

June 11, 2016 • Commentary by Pigini, glass

Traditionally, application of RTV silicone material has been a remedial measure to mitigate pollution-related flashovers of porcelain substation insulators suffering poor service performance. Indeed, coatings have been viewed mainly as a maintenance product...

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