Vista® and Vista® SD Underground Distribution Switchgear

 A Reliable Solution

 

Vista switchgear provides fully submersible reliable protection, even in the face of major weather events. Vista switchgear’s simple, three-position switch with single handle operation and larger windows to see the contact position allow for operations to be performed without confusion. Vista switchgear requires virtually no maintenance, reducing operating and maintenance costs.

 With climate change, flooding now occurs in areas where it historically didn’t occur. When exposed to flood water, some switchgear may become severely damaged & non-operational. Repairing the gear is time-consuming, costly &power reliability is negatively impacted while the switchgear is out of service.Many styles of switchgear also require tedious staff training on complicated operation &maintenance procedures. Any misstep in the switchgear’s operating sequence can lead to major damage, which is also time-consuming &costly to repair. If the switchgear is not arc-resistant, the crew injury risk increases.All these issues can be solved with theS&C Vista & Vista SD series Switchgears…

Key Benefits
  • Simple – One-Handed Operation
  • No External Grounds
  • Dust, Corrosion and Leak-Proof
  • Submersible
  • High degree of protection against environment
  • Large viewing window and visible open gaps
  • Improved worker safety
  • Overcurrent control
  • Zero Emissions
  • Aesthetic Improvements

Advantages

Medium to large sized

transformers

Utility and industrial transformers

Transmission

transformers

Application

  • Vista switchgear is available in six installation styles:

    • Pad-Mounted Style. This style improves aesthetics and reduces real-estate requirements—especially at 34.5 kV, where air-insulated gear is too large to be practical in many applications.
    • Under Cover™ Style. Out of sight, yet easy to operate from ground level, submersible Under Cover Style Vista switchgear is ideal where aesthetics are important or where space limitations make it difficult to deploy gear above ground.
    • Vault-Mounted Style. This style provides a compact switching-and-protection solution for manholes, electrical rooms, and sidewalk vaults, where space is very limited. A single unit accommodates up to six load-interrupter switches, fault interrupters, or a combination of each.
    • Wind-Turbine Style. This slim, single-way three-phase version fits through a 24-inch (610-mm) wide opening. It provides connection and switching points for the medium voltage cables from the generator output. Because of its side-operation, it can be positioned alongside a wall.
    • Manhole Style. This round, single-way, three-phase version is installed through the opening of an underground vault
    • Mobile Heavy-Duty Style. This unique version of Vista switchgear is suitable for temporary or permanent installations. Developed for the U.S. military, this small, lightweight Vista switchgear style is specially designed to withstand the rigors of extended air transport at high altitude.
    • Vista Switchgear for Special Applications. Vista switchgear can be engineered to suit a variety of “special” applications. For example, if a utility expands a conventional metal enclosed switchgear lineup to accommodate two additional feeders—but there was only room for one more bay—a new bay externally matching the others can be constructed that contains a Vista switchgear unit.

  • Vista SD switchgear is offered in four installation styles:

    • Pad-Mounted Style. Furnished with an optionally available pad-mounted style enclosure for above-grade installations; available in mild steel or stainless steel
    • Multi-Way Vault-Mounted Style. Usable in submersible vaults with multiple source ways and/or multiple protected ways (taps)
    • Single-Way Vault-Mounted Style. Ideally suited for use on the primary side of network transformers
    • PMH and PME Styles. Matches the footprint and phase configuration of PMH and PME Pad-Mounted Gear