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High-voltage power lines and insulators on a transmission tower in a forested area with autumn foliage.

Viper®-HV Sub-Transmission Recloser

G&W Electric is revolutionizing the high voltage market with the world’s first high-voltage (72.5kV) pole top recloser that provides reliable overcurrent protection on sub-transmission lines without the cost of a substation.

G&W Electric’s Viper-HV 72.5KV recloser is designed to provide overcurrent protection through fault isolation and automatic restoration for temporary faults on overhead sub-transmission lines.

  • Innovative 3-in-1 Device. This revolutionary solution incorporates reclosing technology, current transformers, and voltage sensors in a single space-saving design. 
  • Automation Ready. Simplifying conversion for any future requirements, the Viper-HV provides faster fault isolation, restoration, and reconfiguration capability. 
  • Design Flexibility. With modular and flexible mounting configurations and different relay options, it provides additional savings by not having a foundation in a fenced substation and control house.

Features and Benefits

  • Maintenance Free Eliminate routine maintenance and improve personnel safety because the Viper-HV requires no oil or gas.

  • Enhanced Reliability Current carrying is path protected from the environment with magnetic actuator connected to vacuum bottle, so no gears or motors are impacted by outside elements.

  • Compact 3-in-1 Device Features a recloser, CTs, and Voltage Sensors in a single space-saving design.

  • Automation Ready Simplifies conversion for any future requirements; provides faster fault isolation, restoration and reconfiguration capability.

  • Pole Top Design Gain more design flexibility and cost savings by eliminating foundation in fenced substation and control house.

  • Configuration Flexibility Adapts to the pole construction and relay selection that best matches your requirements with modular and flexible mounting configurations and different relay options.

  • Operator Safety Vacuum interrupter and all energized parts are sealed within field-proven solid-dielectric insulation, providing optimum operator safety and protection to prevent exposure to environment and wildlife.

  • Plug-and-Play Installation Includes protection relay in an outdoor control with connectorized control cable on both ends.

Configurations

Viper-HV Recloser offers a variety of configurations.

Phase-Over-Phase Viper-HV Configurator

Phase-Over-Phase

Staggered phase over phase Viper HV

Staggered Phase-Over-Phase

Viper HV Horizontal Mount Configuration

Horizontal Mounting

Viper HV Cross arm configuration

Crossarm

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Phase-Over-Phase Viper-HV Configurator
Staggered phase over phase Viper HV
Viper HV Horizontal Mount Configuration
Viper HV Cross arm configuration

Explore Viper-HV Configurator

The Viper-HV recloser offers a variety of configurations and can be customized with optional accessories to meet the needs of your application. Select your options to build the design that best suits your specific needs.

Viper-HV Table

Voltage Class72.5kV
Continuous Current1200A & 2000A
Interrupting Current31.5kA
Short-Circuit Making80kA pk
Short-Time Withstand3 seconds
BIL350kV
Mechanical Endurance10,000
  • SEL-651R2, Advance Recloser Control
  • SEL-421, Protection, Automation and Control System
  • Wildlife Protectors
  • Powering Transformers

Need more information? Contact the rep in your area.