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Substation composite insulator

Substation composite insulator is one of substation insulators used in substations, stations and power plant made from silicone rubber providing mechanical and electrical performance.

Substation composite insulator

The features of Substation composite insulator
◆ Voltage Range: AC 40.5kV-1100kV、DC±400kV-±1100kV
◆ Structure: Reinforced Fiber Glass Tube, VMQHousing, Flange
◆ Applications: CT/VT, Switchgear, GIS, HGIS, DTB, LTB, Cable Termination, Arrester, Capacitor, Transformer, Reactor, Bus-bar etc.

The Advantages of Substation composite insulator:
• High safety in seismic areas – shock absorbers not necessary.
• High insulating behaviour under moisture stress without additional surface coating
• Excellent insulating behavior at simultaneous stress of both
• Moisture and pollution layer without cleaning or greasing due to the hydrophobicity transfer.
• Proven aging resistance over 13 years service against:
- Degradation (temporary reduction of insulating behaviour).
- Deterioration (remaining reduction of insulating behaviour).
• Significantly shorter delivery time than porcelain insulators.
• Low weight, reduced risk for transport and assembly (no broken sheds) - easier and cheaper handling.
• Materials are recognized to be safe for health.

Substation composite insulator is generally used in AC electrical systems consisting of FRP core, weathersheds and metal end fittings, station post insulator is one of substation insulators.


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About Us - Composite insulator manufacturer
More than 30 years experience in power industry since 1978 as a composite insulator manufacturer in China, advanced manufacturing process, strict quality control test system, ISO certificated, excellent communication, considerate services, enable us to be a leading composite insulator manufacturer of composite insulator and polymer insulator.
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5000h Aging Type Test Report
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