System VI™ Switchgear

Operating and Safety Benefits

S&C’s unique Vista® Underground Distribution Switchgear is at the heart of every System VI Switch-gear lineup. Vista gear provides a major advancement in operating simplicity and safety for medium-voltage switchgear.

All medium-voltage components are isolated inside the grounded steel tank. Cables are connected via insulated separable connectors (elbows). But unlike conventional elbow-connected gear, with Vista gear there’s no need for operating personnel to move, test, and ground cables during routine operations. Such procedures are awkward and time consuming, and — most importantly — personnel are not fully isolated from medium voltage once a cable is removed from its bushing.

It’s all made possible by Vista gear’s numerous innovations, including:

• Clearly visible open gap and ground positions on all switches and fault interrupters.
• Especially large viewing windows for positive confirmation of closed, open, and grounded positions.
• Operating controls isolated from medium-voltage cable terminations.
• Optional built-in voltage indication on operating side of the gear.
• Optional low-voltage phasing feature on operating side of the gear.
• Ground positions are rated for a minimum of 3 fault-closing operations at maximum rated short-circuit current. Accidentally grounding a live cable is not a potentially dangerous situation, as it can be when physically handling live cables and elbows.