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Transmission & Distribution Industry
WACKER was the first silicones producer on the market to offer a full range of electrically insulating and conducting silicone rubbers for transmission and distribution. Today, POWERSIL® is a world-leading brand that is synonymous with innovative, economical and reliable products.
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POWERSIL® silicones are high-end silicone elastomers that range from low-viscosity to ready-to-use solid rubbers. They are used to produce long-rod insulators/surge arresters and hollow insulators as well as to coat insulators, especially glass and ceramic insulators.
Benefits:
- Good mechanical properties
- Excellent dielectric properties
- Ready to use
- Two-part system
- Extremely low-viscosity liquid rubber
- Excellent processing in appropriate mixing and metering systems
- High tracking and erosion resistance
Benefits of POWERSIL® in long-rod insulators:
- Long service life due to excellent hydrophobic properties and resistance to heat, UV and ozone
- Easy to use due to low weight
- Excellent toughness and impact strength due to flexibility
- High flashover resistance due to hydrophobic surface
- Low maintenance costs due to hydrophobicity transfer
Benefits of POWERSIL® in hollow insulators:
- Excellent process safety and flexibility due to low-pressure molding process
- Easy handling due to low weight (80 % lighter than porcelain insulators)
- Excellent toughness and impact strength due to flexibility
- High flashover resistance due to hydrophobic surface
Benefits of POWERSIL® as insulator coating:
- High operational reliability due to excellent hydrophobic properties
- Cost efficiency due to scope for retrofitting existing installations
- Extended service life due to silicone coating (10 years and longer)
Insulators:
Arresters:
Insulator coatings:
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Design principle of a cold-shrinkable joint
Cable accessories made with POWERSIL® silicone rubber are used in high and low voltage cables. They allow for various types of field control – from high to low voltage, as well as for both push-on and cold-shrink technologies.
Benefits:
- Outstanding dielectric properties
- Permanent elasticity over a broad temperature range
- Excellent hydrophobic properties and resistance to heat, UV and ozone
- Very good tracking resistance
- High arcing resistance
Production method:
- Solid silicone rubber (HTV)
- Liquid silicone rubber (LSR)
- Extra-low-viscosity systems (POWERSIL® XLR®)
- Room-temperature-curing systems (RTV-2)
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POWERSIL® Fluids are low-viscosity silicone fluids that have been specifically optimized for the insulating systems employed in modern transformers. POWERSIL® Fluids are used here for cooling and insulating as well as for high-voltage terminations.
Benefits:
- High heat resistance
- Short-term thermal shock resistance
- Very high, long-term heat resistance
- Use at low temperatures with rated output
- Extremely low dissipation factor
- Minimal change in electrical properties over a wide temperature range
- High flash point
Product Recommendations
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Transmission & Distribution
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Transformers
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POWERSIL® FLUID TR 50 | High fire point, High flash point |
[] Suited, [] Well suited, [] Ideally suited