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Insulators

Materials Toward Development of Insulators of the Future

August 19, 2017 • ARTICLE ARCHIVE, InsulatorsComments Off on Materials Toward Development of Insulators of the Future

It is a common goal these days that a growing amount of energy supply come from renewables and, at the same time, that power systems should be made more controllable to better optimize power flow and reduce losses. Classical power systems must therefore change to better permit utilization of distributed generation, energy storage and information ...

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In Praise of Coated Glass and Porcelain Insulators

August 19, 2017 • ARTICLE ARCHIVE, glass, Insulators

When you have two alternative technologies that each complement the weakness of the other, combining them would seem a logical solution.  Porcelain and glass insulators (both classified as ‘ceramic’ since each is based on silica) suffer from the weakness...

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Insulator Technologies & Need for Standards

August 12, 2017 • ARTICLE ARCHIVE, Insulators

Standards have great long-term impact on the power industry and the equipment it relies on since they determine quality and stability of products as well as customer trust in and acceptance of these products. As a general rule: “No standard, no business”....

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Designing, Testing, Building & Maintaining Compact Towers with Insulated Cross-arms

August 12, 2017 • ARTICLE ARCHIVE, HV/HP Testing, Insulators

A search for new tower designs was launched in Belgium in early 2008 in conjunction with two new 400 kV projects: Stevin (extension of the 400 kV grid to the coast) and Brabo (reinforcement of the 400 kV grid in the Port of Antwerp). Requirements were:...

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Pollution Monitoring for Better Selection of Insulators in Contaminated Service Conditions

August 5, 2017 • ARTICLE ARCHIVE, Insulators

Failures of insulators due to pollution flashover can prove very costly, causing potentially long outages and requiring expensive and time-consuming maintenance. By most accounts, one of the leading causes of such failures is improper specification of...

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Handling of Composite Insulators

August 5, 2017 • ARTICLE ARCHIVE, Insulators

Growing evidence of service failures of composite insulators due to mishandling caused former CIGRE Working Group 22.03 to issue Technical Brochure 184 titled Composite Insulator Handling Guide. Pioneering utilities as well as manufacturers contributed to the...

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DC Insulator Dimensioning for AC to DC Line Conversion

August 5, 2017 • ARTICLE ARCHIVE, Insulators

Increased market integration between countries and large scale introduction of new renewable energy sources have resulted in demand for enhanced transmission capacity. As a result, more and more power utilities are uprating or building new overhead lines...

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Resolving External Insulation Problems at HVDC Converter Stations

Resolving External Insulation Problems at HVDC Converter Stations

July 29, 2017 • ARTICLE ARCHIVE, Insulators

Along with China’s rapid economic growth over the past three decades has come a major revamping of that country’s energy and load planning strategies. In particular, DC transmission has begun to take on an increasingly important role since 1990 due to its...

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