By choosing Composite Insulator Technology, excellent performance and reliability can be assured for the lifetime of your equipment:
One piece tailored glass fiber composite tube - best mechanical and dielectrically performance
High temperature vulcanized (HTV) silicone rubber with high amount of aluminum rehydrate (ATH) filler - improved tracking and erosion performance and best long term performance
Seamless helical extrusion process for a continuous outer silicone housing - no mold lines where dirt or salt can accumulate
Optimized shed profiles with large shed tip radius and high protective creep age distance - lowest possible leakage currents and electrical field
High-strength aluminum end fittings - strong, gas-tight and leak-proof joint
Examples of applications in which our Composite Insulators are used:
High voltage circuit breakers (live tank and dead tank)
Outdoor instrument transformers (current and voltage)
Surge arresters
Cable terminations
Transformer bushings
Wall bushings
Gas insulated switchgear (GIS)
UHVDC / UHV station post insulators
Voltage dividers
Silicone rubber is the fastest-growing, most dominant polymeric insulation material for high voltage products. SINGREE Composite Insulators with silicone rubber offer significant benefits compared to the former porcelain technology:
Explosion-proof for maximum safety
Non-brittle material with reduced risk of handling damages
Leakage current control due to hydrophobicity
Excellent insulation for reduced creep age requirements
Flashover resistance
Outstanding seismic performance provides safety and reliability
Low weight for cost savings
Maintenance-free and outstanding pollution performance
UV stability