Source-Transfer Vista® Underground Distribution Switchgear
Introduction
S&C Source-Transfer Vista Underground Distribution Switchgear provides fully automatic primary-selective service and fault protection for one, two, or three critical load circuits. This Smart Grid solution incorporates the same outstanding features as Manual Vista Switchgear, plus S&C’s Micro-AT® Source-Transfer Control, motor operators, three-phase voltage sensing on source ways, and voltage transformers for control power. It’s available in common-bus and split-bus configurations.
Furnished in ratings through 38 kV, Source-Transfer Vista Underground Distribution Switchgear features carefully integrated components that ensure compatibility — all factory-assembled and checked-out.
- Micro-AT Source-Transfer Control. Offers self-healing response to distribution system problems. Transfers on loss of source, voltage unbalance, or any source-side open-phase condition. It’s easy to set up . . . all settings are keypad-programmable, calibration is automatic. Optional overcurrent-lockout feature prevents automatic transfer operation that would close a source load-interrupter switch into a fault. Optional communications card lets you rapidly upload event log to your PC, download standard settings.
- Motor operators on load-interrupter switch ways provide automatic switching between the sources. Also provide automatic operation of bus-tie switch in split-bus configuration gear.
- Three-phase voltage sensing for each source. Three-phase current sensing furnished too when optional overcurrent-lockout feature is specified.
- Self-powered by voltage transformers.
- Exceptionally rugged enclosure construction and the industry’s finest finish provide extraordinary resistance to the elements, keep high-voltage components securely isolated from unauthorized access.
- Styles to meet the needs of your applications: Pad-Mounted, UnderCover™, and Vault-Mounted.