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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.

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Viper®-HV
Reliable, Resilient, Revolutionary

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

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.

IEC 62271-111 (2019) / ANSI C37.60 (2018) with ratings from ANSI C37.04 and 09 standards.

Viper-HV Recloser Ratings Table

VOLTAGENominal Frequency (Hz):50 / 60
Rated Maximum Voltage (kV RMS)72.5
Voltage Sensors3
Voltage Sensor Ratio15000:1
Voltage Sensor Accuracy*±2%
Impulse Level (BIL), kV350
Power-Frequency Voltage Withstand Rating, kV RMS( 60 Seconds Dry)160
Power-Frequency Voltage Withstand Rating, kV RMS (60 Seconds Wet)160
CURRENTCT Ratio300:1, 400:1, 500:1, 800:1, 1100:1,
1200:1, 1500:1, 1600:1, & 2000:1
CT Accuracy5P20 (IEC) (International Standard)
C50 (IEEE) / 10P20 (IEC) (US Domestic Standard)
Continuous Current, A RMS **1200
Short Circuit Interrupting Current, kA Sym, 3 Seconds31.5
Withstand Current (kA, peak)82
Out of Phase Switching Current Test105kV @ 7.9kA
Line Charging Current (A)20
Cable-Charging Current (100%) A250
First Pole to Clear Factor (kpp)1.5 / 1.3
MECHANICALMechanical Operations10,000
Top Terminal Creepage Distance – Z-side (mm)4065
SideTerminal Creepage Distance – Y-side (mm)3553
Terminal Creepage Distance (mm)3442
Tracking and Erosion Test
( IEC 62217:2012, Clause 9.3.3) (hours)		5000
Moisture IngressIPx5
Hurricane RatingF4
Operation CycleO – 0.3 sec – CO – 2 sec
CO – 5 sec – CO – Lockout
Temperature Range-40C to +65°C
‘ -40°F to +149°F
* +/- 2% for temperatures from -20°C to +40°C
+/-4% for temperatures from -40°C to +65°C
** Consult your G&W Electric sales representative for additional amperage ratings

Relay Control Options

SEL-651R2SEL-421SEL-411LSEL-T401LIngePac EF LD
Advanced Recloser ControlProtection, Automation, and Control SystemAdvanced line Differential Protection, Automationc, and Control SystemUltra High Speed Line RelayLine Differential Protection Relay
Traveling Wave ProtectionX
Single Phase Trip CapabilityX
Line Current Differential ProtectionXXX
Directional Phase Fault DetectionXXXX
Synchrophasor SupportXXX
Broken Conductor DetectionXX
Sever Rack Form Factor*XXXXX
Oscillography and Event ReportsXXXXX
Dual CT Architecture SupportXXX
Statistical MeetingXXXXX

Accessory Options

  • Wildlife Protectors
  • Powering Transformers

Download product brochures, article, white paper and case study:

Article

Case Study

Product Literature

White Paper

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