Power-Operated Vista® Underground Distribution Switchgear

Power-operated Vista Underground Distribution Switchgear is available in Remote Supervisory and Source-Transfer Models. Each offers the same features and benefits of manual Vista gear, discussed in detail on pages 44 through 47.

Remote Supervisory Vista UDS

Remote Supervisory Vista UDS provides automated switching and fault protection, and can also perform auto-sectionalizing without tripping the main breaker.

Up to six load-interrupter switches or fault interrupters can be motor operated in a single unit of Vista UDS. The motor operators may be battery powered or, optionally, self-powered using internal voltage transformers. The low-voltage compartment can be furnished with a user-furnished remote terminal unit or 5800 Series Automatic Switch Control which supports the IntelliTEAM II® Automatic Restoration System, and communication device.

The vacuum bottles of any three-phase fault interrupter way can be remotely tripped using external, user-specified relays. This capability permits advanced applications like sensitive earth-ground fault detection, as well as protective relay schemes using high-speed communication for closed-loop and open-loop systems.  

Source-Transfer Vista UDS

Source-Transfer Vista UDS provides fully automatic primary-selective service for one, two, or three critical loads. It includes an S&C Micro-AT® Source-Transfer Control, three-phase voltage sensing on source ways, and internal power provided by voltage transformers. It is available in common-bus and split-bus configurations.