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The UltraSIL design from Cooper Power Systems
The UltraSIL design from Cooper Power Systems incorporates a housing of polymer material (silicone rubber) which is an excellent insulator of overhead products, delivers high UV resistance and high hydrophobicity. The UltraSIL design delivers superior performance in distribution- and station-class surge arresters and cutouts. For long term weathering performance, water repellance, resistance to UV degradation and atmospheric pollution as well as other important insulation performance, silicone rubber is unsurpassed.


FEATURES :

The UltraSIL silicone rubber housing utilizes an interference fit and is bonded onto the internal module to form a solid, void free, high-dielectric strength insulation system.

Cooper Power Systems proprietary process wraps the assembly with a high-strength woven fiberglass-reinforced epoxy composite.

The silicone rubber housing is less sensitive to physical damage than porcelain.

The UltraSIL silicone rubber housing was selected for its superior insulation performance when compared to other polymeric housing materials.

Independent laboratory tests have verified the superior water repellent behavior of silicone rubber, which is responsible for the lower external power losses, higher resistance to UV degradation and surface tracking, superior performance in contaminated environments, and other important insulating properties.

UltraSIL silicone rubber has been proven not to support biological growth and is nonflammable.

The basic silicone rubber housed arrester can be customized with a variety of terminal and mounting options which allow users to select the features that meet their application needs.

They are ideal for applications where lighter weight and shorter heights (when compared to porcelain housed arresters and cutouts) are critical.



Arrester-Flipper Fuse Cutout Combinations


Flipper fuse assemblies provide users effective overvoltage and overcurrent protection with a minimum of pole-top hardware.

IEC UltraSIL Housed VariSTAR Type U2 Surge Arrester for Systems through 275 kV 10-kA; Line Discharge Class 2


UltraSIL Polymer-Housed VariSTAR Type U2 Surge Arresters offer the latest in metal oxide varistor (MOV) technology for the economical protection of medium-voltage class power and substation equipment.


IEC UltraSIL Housed VariSTAR Type U3 Surge Arrester for Systems through 275 kV 10 kA; Line Discharge Class 3


UltraSIL Polymer-Housed VariSTAR U3 Surge Arresters offer the latest in metal oxide varistor (MOV) technology for the economical protection of voltage class power and substation



IEC UltraSIL Housed VariSTAR Type U4 Surge Arrester for Systems through 275 kV 20 kA; Line Discharge Class 4


VariSTAR U4 Surge Arresters offer the latest in metal oxide varistor (MOV) technology for the economical protection of high voltage class power and substation equipment.


IEEE UltraSIL Polymer-Housed VariSTAR Station-Class Surge Arresters


UltraSIL Polymer-Housed VariSTAR surge arresters allow increased cantilever strength and improved energy handling capability.

IEEE UltraSIL™ polymer-housed VariSTAR™ high-strength station-class arresters


The UltraSIL™ Polymer-Housed VariSTAR™ UXL High-Strength Station-Class Surge Arrester incorporates the industry recognized superior silicone rubber housing with a unique high creep alternating shed profile designed to withstand the most extreme environments.





Surge Arrester/Type L Fuse Cutout Combinations


Cooper Power Systems surge arrester/Type L interchangeable fuse cutout combinations are available in a wide variety of both arrester and fuse cutout designs

UI Intermediate Class Arrester


The UltraSIL Polymer-Housed VariSTAR Type UI Intermediate-Class Arresters incorporates housing applied over a gapless MOV internal design.

UltraSIL Housed VariSTAR Surge Arresters 5 kA and 10 kA Class 1 IEC 60099-4 for MV Systems to 36 kV


UltraSIL housed VariSTAR arresters are available in 5 kA and 10 kA Class 1 IEC 60099-4 designs.
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UltraSIL Polymer-Housed Evolution Surge Arresters (10 kA)


Engineered to survive the elements and protect system assets.

UltraSIL Polymer-Housed VariSTAR Surge Arresters: Normal-Duty (5 kA), Heavy-Duty (10 kA), and Heavy-Duty Riser Pole (10 kA)


UltraSIL polymer-housed VariSTAR distribution-class surge arresters provide superior overvoltage protection for any electric distribution system.

UltraSIL Polymer-Insulated and Porcelain Type L Open Distribution CutoutOvercurrent protection safeguards an electric system from excessive currents produced by abnormal conditions such as faults, line or equipment overloads, or equipment failures.
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