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Reporting from CIGRE

Preferred Insulators for DC Line Applications

December 2, 2017 • ARTICLE ARCHIVE, Insulators, Reporting from CIGREComments Off on Preferred Insulators for DC Line Applications

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 well accepted that application of composite insulators is state-of-the-art for AC ...

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Quantification of Hydrophobic Properties

November 18, 2017 • 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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Dealing with Deterioration of Silicone Insulation in Critical Applications

November 18, 2017 • 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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Progress in Standardizing Recommended Creepage in DC

Progress in Standardizing Recommended Creepage in DC

November 11, 2017 • ARTICLE ARCHIVE, Editorial Columns, Reporting from CIGRE, Transmission Structures

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 factors such as that HVDC systems may be less expensive in terms of required equipment investment...

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Detecting Corona with UV Cameras

September 2, 2017 • 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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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 factors such as that HVDC systems may be less expensive in terms of required equipment investment...

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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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