Viper®-SP Single Phase Recloser

Name: Viper-SP Single Phase Recloser
Brand: G&W Electric

G&W Electric’s Viper^®-SP solid dielectric, single phase recloser combines the time-proven reliability of electronically controlled, vacuum fault interrupters with the maintenance-free benefits of a solid dielectric insulated device. The Viper^®-SP is designed for automatic or manual operation providing overcurrent protection for single phase systems through 38kV maximum, 800A continuous current, and 12.5kA rms symmetrical interrupting. Vertical insulator “L” configurations and horizontal insulator “Z” configurations are available.

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Features and Benefits

Flexible Configuration Pole mount configurations to fit a variety of applications.
Ease of Operation The Viper®-SP is compatible with the Schweitzer SEL-351RS Kestrel control along with a variety of other control options upon request.
Ease of Installation The Viper®-SP is lightweight and compact. Site-ready designs provide all accessories preassembled prior to shipment, significantly reducing installation time.
Dead-Line Operation The unique design of the Viper®-SP magnetic actuator system provides for local and remote operation of the recloser on battery backup in the event that the AC source power is lost or interrupted.
Reliable Performance Viper®-SP single phase reclosers utilize G&W Electric’s time- proven epoxy polymer system to fully encapsulate the vacuum interrupters. This system provides excellent insulation properties while providing fully shielded, void-free construction.
Controller Programming The controller is configured to meet the specific requirements of the application.
Power Grid Automation Ready The Viper®-SP is automation ready, simplifying conversion for any future automation requirements.
Current Sensing The Viper®-SP recloser has a dual-ratio current transformers for current sensing.
Dead-front Modules The Viper®-SP dead-front modules are designed to fully shield energized components within the module assembly, enhancing linemen safety and reducing the risk of wildlife contact and wildfire ignition. External insulators remain energized as part of normal operation.

Configuration Details

Polemount “L” Bracket
Polemount Horizontal Insulator Bracket
Polemount Complete Site-Ready Assembly

Viper-SP Overhead L-Module Configuration

VOLTAGE	Nominal Frequency (Hz):	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz
	Rated Maximum Voltage (kV RMS)	15.5	27	29.3	38
	Impulse Level (BIL), kV	110	125	150	150
	Power-Frequency Voltage Withstand Rating, kV RMS( 60 Seconds Dry)	50	60	70	70
	Power-Frequency Voltage Withstand Rating, kV RMS( 10 Seconds Wet)	45	50	60	60
CURRENT	CT Ratio ṱ	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1
	CT Accuracy	+/-1%	+/-1%	+/-1%	+/-1%
	Continuous Current, A RMS*	630ṱ / 800	630ṱ / 800	630ṱ / 800	630ṱ / 800
	Short Circuit Interrupting Current, kA Sym, 3 Seconds	12.5	12.5	12.5	12.5
	Withstand Current (kA, peak)	32.5	32.5	32.5	32.5
	Line Charging Current (A)	5	5	5	5
	Cable-Charging Current (100%) A	25	25	40	40
	First Pole to Clear Factor (kpp)	1.5	1.5	1.5	1.5
MECHANICAL	Mechanical Operations	10,000	10,000	10,000	10,000
	Creepage Distance (mm)	435	724	955	955
	Minimum Phase Spacing (Inches)	15	15	15	15
	Temperature Range*	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°
NOTE: Power-Frequency Voltage Withstand Rating (Wet) is not applicable for recloser with dead break or elbow connections
* 1000A reclosers are rated at 40°C ambient temperature (from 41°C to 65°C rating is 800A)
ṱ limited to 630A for 400/200:1 CT ratios

Viper-SP Overhead Z-Module Configuration

VOLTAGE	Nominal Frequency (Hz):	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz
	Rated Maximum Voltage (kV RMS)	15.5	27	29.3	38
	Impulse Level (BIL), kV	110	125	150	150
	Power-Frequency Voltage Withstand Rating, kV RMS( 60 Seconds Dry)	50	60	70	70
	Power-Frequency Voltage Withstand Rating, kV RMS( 10 Seconds Wet)	45	50	60	60
CURRENT	CT Ratio ṱ	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1
	CT Accuracy	+/-1%	+/-1%	+/-1%	+/-1%
	Continuous Current, A RMS	630ṱ / 800	630ṱ / 800	630ṱ / 800	630ṱ / 800
	Short Circuit Interrupting Current, kA Sym, 3 Seconds	12.5	12.5	12.5	12.5
	Withstand Current (kA, peak)	32.5	32.5	32.5	32.5
	Line Charging Current (A)	5	5	5	5
	Cable-Charging Current (100%) A	25	25	40	40
	First Pole to Clear Factor (kpp)	1.5	1.5	1.5	1.5
MECHANICAL	Mechanical Operations	10,000	10,000	10,000	10,000
	Creepage Distance (mm)	435	724	955	955
	Minimum Phase Spacing (Inches)	15	15	15	15
	Temperature Range	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°
NOTE: Power-Frequency Voltage Withstand Rating (Wet) is not applicable for recloser with dead break or elbow connections
ṱ limited to 630A for 400/200:1 CT ratios

Viper-SP Padmount Z-Module or C-Module Configuration

VOLTAGE	Nominal Frequency (Hz):	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz	50 / 60 Hz
	Rated Maximum Voltage (kV RMS)	15.5	27	29.3	38
	Impulse Level (BIL), kV	110	125	125	150
	Power-Frequency Voltage Withstand Rating, kV RMS( 60 Seconds Dry)	35	40	40	50
	DC Withstand (15 Minutes)	53	78	78	103
CURRENT	CT Ratio ṱ	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1	400/200:1 1000/500:1
	CT Accuracy	+/-1%	+/-1%	+/-1%	+/-1%
	Continuous Current, A RMS	630ṱ / 800	630ṱ / 800	630ṱ / 800	630ṱ / 800
	Short Circuit Interrupting Current, kA Sym, 3 Seconds	12.5	12.5	12.5	12.5
	Withstand Current (kA, peak)	32.5	32.5	32.5	32.5
	Line Charging Current (A)	5	5	5	5
	Cable-Charging Current (100%) A	25	25	40	40
	First Pole to Clear Factor (kpp)	1.5	1.5	1.5	1.5
MECHANICAL	Mechanical Operations	10,000	10,000	10,000	10,000
	200A Deepwell*	Available	Available	Available	Available
	Temperature Range	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°	-60°C to +65°C -76°F to +150°
ṱ limited to 630A for 400/200:1 CT Ratios

Accessories

For site-ready configurations, the Viper-SP can be provided with:

Lightning Arresters:

Lightning Arresters are not installed, they can come with their primary wires connected to the Viper-SP’s terminals and have their ground strap connected.

Control Power Transformer:

Either an oil control power transformer (CPT) or a solid dielectric potential transformer (PT) can be added to the frame of the Viper-SP. The primary connection can be made to the Viper-SP. An AC cable can be provided so it’s either connectorized or hardwired on the control end.

Mounting flexibility:

An orientation bracket can be provided to allow the Viper-SP to be installed facing either away from the pole or with the horizontal insulator on the left or right side to better fit the pole construction.

Fully connectorized control cable:

As default, the Viper-SP comes with the main cable wired into the mechanism for interface with the control. This control cable is only connectorized on the control side. As an available option, the main cable can be connectorized at the recloser mechanism side as well.

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

Article

How Utilities Can Boost Grid Reliability with a Distribution Automation System

Product Literature

Specification

Viper-SP Specification

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