System VI™ Switchgear
Introduction
Other Metal-Enclosed Switchgear
Combines Vista® Underground Distribution Switchgear and Metal-Enclosed Switchgear modules to provide an economic and reliable alternative to traditional metal-enclosed switchgear. For applications through 34.5 kV requiring 16-kA symmetrical short-circuit duty, System VI Switchgear features a modular arrangement of S&C Vista® Underground Distribution Switchgear. Individual units of Vista gear include 600-ampere load-interrupter switches and fault interrupters, sealed in an SF6-insulated, elbow-connected tank. Using air-insulated bushings on one or both sides of the tank, multiple units of Vista gear can be joined together or to metal-enclosed switchgear modules such as air-insulated metering bays.
System VI Switchgear offers numerous unique benefits, including:
- Compact, low-profile design. Even at 34.5 kV, System VI gear can be as little as 37 inches tall. And System VI gear has a significantly smaller footprint than conventional gear.
- Single-or three-phase protection through 600 amperes continuous with resettable vacuum fault interrupters.
- Simplified operations and enhanced safety. Routine operations can be performed quickly and easily by a single person, with no exposure to cables or energized components. Refer to Operating and Safety Benefits to see how System VI gear makes this possible.
- Microprocessor-based overcurrent control provides advanced, flexible protection. External-trip option allows fault interrupters to be tripped from transformer secondary or sudden-pressure relays.
- Source-transfer and remote supervisory automation schemes available.
- It’s affordable. Even with all its added features, System VI gear is competitive with — or offers significant savings over — conventional gear.