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Fault Interrupting through 38kV, 800A, 12.5kA symmetrical interrupting. G&W'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.

Features:
  • Reliable Performance - Viper-SP reclosers utilize G&W’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.
  • Ease of Operation - The Viper-SP is compatible with the Schweitzer SEL-351RS Kestrel control
  • Ease of Installation -The Viper-SP is lightweight and compact. Site-ready designs provide all accessories including bracket, arresters and voltage transformers.
  • Smart Grid/Lazer Automation Solutions - The Viper-SP is automation ready, simplifying conversion for any future automation requirements. A multi-ratio current transformer is encapsulated within the module.

Polemount "L" Bracket

 

Polemount Horizontal Insulator Bracket

 

 

Polemount Site-Ready Bracket

Reclosers can be supplied preassembled including bracket and arresters, reducing installation time. Provisions for easy mounting of voltage transformers are also provided.

Electrical Ratings:
Voltage Class, kV
15
25
35
Maximum System Voltage, kV 
15.5
27
38
BIL, kV
110
125
150
Continuous Current, A
800
800
800
8 Hr. Overload, @ 20°C
960
960
960
60Hz  Withstand, kV rms
  Dry, 1 minute
  Wet, 10 second

50
45

60
50

 

70

60

Interrupting Rating, RMS, kA
12.5
12.5
12.5
Making Current, RMS, asym, kA
20
20
20
Making Current, Peak, asym kA
32
32
32
Short Circuit Current, kA sym, 3 sec.
12.5
12.5
12.5
Mechanical operations
10,000
10,000
10,000

 

Control Capabilities
The Viper-SP recloser works with Schweitzer’s SEL-351RS Kestrel control. Typical features of the Kestrel include: 

• Choose from two economical, low maintenance aluminum cabinet options: a swing-up door and a conventional swing panel enclosure.
• Improve substation automation and control with the included IEC 61850 communication protocol.
• View basic relay information on a connected Ethernet network with the built-in web server.
• Reduce wiring and supply accurate time throughout an Ethernet network with Simple Network Time Protocol (SNTP).
• Transfer such information as IEC 61850 configuration files and settings to and from the relay faster with File Transfer Protocol (FTP).
• Improve power quality monitoring with root-mean-square (rms) and harmonic metering up to the 16th harmonic.
• Simplify local connection and speed communication with an optional, front-panel USB port.
• Integrate with new and existing networks via standard DNP3.0 and Modbus® protocols.
• Increase communications reliability with a built-in Ethernet switch and failover mode for dual Ethernet.
• Identify phasing of single phase reclosers with standard IEEE C37.118 synchrophasors.


Drawings (Click Image to Enlarge)

 

 


Additional Images  (Click Image to Enlarge)

 

 

 
 
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