video corpo

ABB Composite Insulators
24Pages

{{requestButtons}}

Catalog excerpts

ABB Composite Insulators - 1

ABB Composites ABB Composite Insulators Design for reliable performance Power and productivity for a better world

Open the catalog to page 1
ABB Composite Insulators - 2

ABB in Pite ABB Composites in Sweden develops and manufactures Power Composites - high performance insulating components made of fiber composite materials for power and high voltage applications. Our mission is to produce world-class, cost-efficient products for customers all over the world. ABB has a long history of working with composite materials dating back to 1918. ABB Composites is located in Pite in the northern part of Sweden. Our compa⢭ny was founded by pioneers in the Swedish polymer industry, and production of electrical insulating material started in 1918. The present location...

Open the catalog to page 2
ABB Composite Insulators - 4

Design for reliable performance As a part of ABB, we know the requirements of high voltage applications and the essence of being a reliable business partner with the highest quality standards. We are currently providing hollow composite insulators in the voltage range from 72 kV - 1100 kV AC / 800 kV DC and in lengths up to 11 m. All composite insulators are tested and certified according to IEC 61462. ABB hollow composite insulators are made of glass fiber-reinforced epoxy resin tubes with silicone rubber sheds and aluminum end fittings. The design is adapted for high voltage applications...

Open the catalog to page 4
ABB Composite Insulators - 5

The pattern in which the fibers are laid and the pre-stress on the fibers are computer controlled. The fibers can be laid at any angle from 10° to 90° to the longitudinal axis. An inner layer of polyester liner is normally used. This is a requirement for insulators used for gas-insulated circuit breaker applications to withstand decomposition products of the insulation gas SF6. Precise and defined winding of the fiber onto the mandrel ensures uniform laminates of the highest quality. The tubes are cured on continuously rotating mandrels at high temperaͭtures. After curing, the tubes are...

Open the catalog to page 5
ABB Composite Insulators - 6

Advantage of technology ABB composite insulators with silicone rubber insulation possess unique properties. Silicone rubber is the fastest-growing, most dominant polymeric insulation material for high voltage products. Composite insulators were first introduced more than 30 years ago, and the use of hollow composite insulators on high voltage apparatuses is now well-accepted. Composite insulators have proven themselves in the field of service experience and can directly replace porcelain insulators used for high voltͭage applications. They offer significant benefits compared to porcelain...

Open the catalog to page 6
ABB Composite Insulators - 7

Composite insulator after live tank circiut breaker shatter test Composite insulators offer outstanding safety in events such as: internai fault/ inner over pressure in the equipment Օ external influence e.g. during transportation, installation and maintenance environmental influence e.g. earthquake, landslide, tornadoes Օ vandalism e.g. throwing of rocks, shooting Non-brittle material with reduced risk of handling As composite insulators are non-brittle with shock resistance, the risk of damage to the equipment during transport, installation and service is reduced. If, however, a minor...

Open the catalog to page 7
ABB Composite Insulators - 8

Excellent insulation to reduce creepage requirement Composite insulators have excellent insulation properties and outstanding contamination performance due to the HTV silicone rubber. Published field studies show that it is possible to reduce the required creepage distance by at least one pollution level when composite insulators are chosen over porcelain. Flashover resistance The efficient suppression of leakage currents means that the risk of flashover is reduced compared to porcelain insulators. Erosion resistance It is inevitable that even silicone rubber will show some disͭcharge...

Open the catalog to page 8
ABB Composite Insulators - 9

Low weight for cost savings Composite insulators are much lighter and provide higher performance than porcelain insulators. This leads to a drastic reduction in the use of the other materials that make up HV electrical substations, such as foundation materials and the Absorption max of SiO2 bond bearing structures. The installation phase is also easier due t o the reduced need for heavy installation equipment. Maintenance-free and outstanding pollution performance HTV silicone rubber has the ability to transfer its water-repel-lent properties into pollution layers which cover the surface....

Open the catalog to page 9
ABB Composite Insulators - 10

Evaluating a great concept ABB composite insulators are thoroughly tested to international standards and higher. They are installed all over the world and have been proven excellent performance under all climates and harsh conditions such as coastal, desert and industrial environments. Service exprience Since 1985, when the first ABB high voltage equipment with silicone rubber sheds were installed, ABB has delivered a large number of high-voltage appara-tuses equipped with composite insulators. They have been installed in a wide range of environments, from marine to desert and/or areas with...

Open the catalog to page 10
ABB Composite Insulators - 11

Extensive testing ABB composite insulators with silicone rubber sheds have been subject to extensive testing to ensure a high quality level and to verify their mechanical and electrical properties under all environ-mental conditions. Aging withstand, electrical and mechanical erosion resistance and UV stability have been fully verified. Natural pollution tests are continually performed at test stations in both marine and desert climates. Testing is also performed at low ambi-ent tempͩratures, down to -60°C. The composite insulators comply fully with the requirements specified by IEC. The...

Open the catalog to page 11
ABB Composite Insulators - 12

With regard to pollution performance, the short-term and long-term hydrophobicity characteristics of silicone rubber apparatus insulators are better than those of porcelain insula-tors. The number of high pulses in the leakage current, giving risk of a flashover, is much lower for silicone rubber insula-tors than for porcelain insulators. A large margin exists in the specific creepage distance of composite apparatus insulators in comparison to porcelain insulators. Long-term field tests of ABB composite insulators have also been performed at very high voltage stress, 800 kV DC, to-gether...

Open the catalog to page 12

All ABB AG catalogs and technical brochures

  1. Transportation

    11 Pages

Archived catalogs

  1. COMPASS

    20 Pages