Hughes OVX1100 is the world’s first solid insulated high voltage vacuum circuit breaker for 126kV and 3150A for railway feeder substations and electrical transmission system applications. It is a gas-free and a fully environmentally friendly product. The product is built to remain in operation for more than 30 years without major maintenance due to the highest quality materials used in its construction.

The combination of extremely high mechanical endurance and outstanding electrical parameters with solid insulation and with high performance vacuum interrupters provides highly reliable maintenance free products with low life cycle costs.
 

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The OVX1100 has the following key advantages:

• Low maintenance. Hughes vacuum circuit breakers are built to remain in operation for more than 30 years without major maintenance due to the highest quality materials used in its construction;
• Solid insulated bushings (1) that exclude risk for SF6 or mix gas leakage and oil leakage;
• High current vacuum interrupters (2) that will not produce any harmful switching products and are very easy to replace in comparison to gas insulated interrupters;
• The OVX1100 uses high-level insulated bushings (1) with silicone surface that gives superior BIL rating;
• The vacuum interrupter has an innovative design because the unit can be modularized between 1, 2 or 3 poles for different applications. Normally 1 and 2 poles versions are used for railway electrification and 3 poles version is used for electrical transmission systems including renewable energy sectors;
• Low life cycle cost is guaranteed due to the combination of extremely high mechanical endurance and outstanding electrical parameters;
• The circuit breaker is completely prewired which makes it an easily remote-controlled solution;
• Both connection terminals can be supplied with hole patterns in accordance with ANSI or IEC standards.

• Solid insulated;
• 126 kV 1/2/3-phase;
• 3150 A, 31.5 kA;
• 550 kV BIL;
• 265kV PF@ 50 Hz over open contact;
• Stored energy mechanical actuator;
• Solutions for 1-phase, 2-phase, 3-phase systems;
• Vacuum interrupter enclosed in a solid insulation with silicone surface;
• Anti-vandalism poles fitted with polymeric insulators as standard;