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Viper®-HV Recloser

Viper®-HV Recloser

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.


Viper-HV offers a variety of configurations.

Rating Chart 

Voltage Class 72.5kV
Continuous Current 1200A & 2000A
Interrupting Current 31.5kA
Short-Circuit Making 80kA pk
Short-Time Withstand 3 seconds
BIL 350kV
Mechanical Endurance 10,000