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.
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Reclosers can be supplied preassembled including bracket and arresters, reducing installation time. Provisions for easy mounting of voltage transformers are also provided.
 
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Electrical Ratings:
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Voltage Class, kV |
15
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25
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35
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Maximum System Voltage, kV |
15.5
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27
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38
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BIL, kV |
110
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125
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150
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Continuous Current, A |
800
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800
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800
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8 Hr. Overload, @ 20°C |
960
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960
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960
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60Hz Withstand, kV rms
Dry, 1 minute
Wet, 10 second |
50
45
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60
50
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Interrupting Rating, RMS, kA |
12.5
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12.5
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12.5
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Making Current, RMS, asym, kA |
20
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20
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20
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Making Current, Peak, asym kA |
32
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32
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32
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Short Circuit Current, kA sym, 3 sec. |
12.5
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12.5
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12.5
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Mechanical operations |
10,000
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10,000
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10,000
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CONTROL CAPABILITIES G&W’s Viper-SP recloser works with Schweitzer’s latest SEL-351RS Kestrel control. The Kestrel has all the protection and control capabilities you’d expect from Schweitzer with several exciting new capabilities: • 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 communications 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. CONTROL CONNECTIONS A twist lock style connector makes the cable connection between the control and the recloser. AC power provides the normal supply power to the control. |
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