Reporting from CIGRE

Protecting Composite Insulators from Corona

July 14, 2018 • ARTICLE ARCHIVE, Corona, Insulators, Reporting from CIGREComments (0)

One of the important design differences between silicone composite insulators and porcelain cap & pin or long rod types is their smaller shank diameter, made possible by the high strength glass-fibre reinforced core rod. This contributes to superior pollution performance, such as in those situations where hydrophobicity is temporarily lost. However,...

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Ofil Systems

Quantification of Hydrophobic Properties

April 21, 2018 • ARTICLE ARCHIVE, Editorial Columns, Reporting from CIGRE

Hydrophobicity is perhaps the single most recognized property of polymeric materials used for outdoor insulation since it provides added value in terms of enhancing pollution performance. However, only the family of silicone rubber polymers has demonstrated...

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Detecting Corona with UV Cameras

April 14, 2018 • ARTICLE ARCHIVE, Corona, Reporting from CIGRE

Currently, CIGRE WG D1.61 is dealing with the topic of optical detection and measurement of corona. Several ultraviolet (UV) cameras are now available commercially (both night vision and daylight types) and there is ongoing discussion about whether optical...

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Dealing with Deterioration of Silicone Insulation in Critical Applications

March 23, 2018 • ARTICLE ARCHIVE, Reporting from CIGRE

Field experience with composite insulators having polymeric housings is available now for about 40 years and the clear trend is that silicone rubber has become the material of choice. The main reason is its long-term, dynamic hydrophobicity, which can...

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Preferred Insulators for DC Line Applications

December 2, 2017 • ARTICLE ARCHIVE, Insulators, Reporting from CIGRE

When it comes to DC line applications, there are ‘pure’ DC connections and also ‘hybrid’ connections – the latter being a solution to replace an AC system on an existing line route with a DC bi-pole to increase transmission capacity. While it is now...

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Reviewing More Papers at 2016 CIGRE Session

January 28, 2017 • ARTICLE ARCHIVE, Editorial Columns, Reporting from CIGRE

The 543 contributions made during this past CIGRE General Session in Paris represented a milestone for this event and comprise a vast information resource about developments in the world’s electrical power sector. This Column completes a review of some...

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Standards & Complex Insulation Applications

Standards & Complex Insulation Applications

January 7, 2017 • ARTICLE ARCHIVE, Editorial Columns, Reporting from CIGRE

Projects with voltages of 800 kV DC and 1000 kV AC represented major milestones in the development of equipment and insulators for electrical transmission. For applications where pollution is an issue or where high seismic performance is required, composite...

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Reviewing Interesting Topics in SC D1 at CIGRE 2016

November 12, 2016 • ARTICLE ARCHIVE, Reporting from CIGRE

Three particularly interesting papers were presented during the Technical Meeting of Study Committee D1 under Preferential Subject 1, Compact Insulation Systems (AC and DC). What made them so interesting was not only their content but also their relevance to...

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