Vista Switchgear Features and Definitions
Dig Into the Details
Vista Switchgear Features
Flexibility
- Multiple ratings, from 15 to 38 kV*
- Available in manual or automated remote supervisory models
Durability
- Dust-, corrosion-, and leak-proof stainless steel tank
- Submersible
Safety and simplicity
- Easy operation
- Large viewing windows and visible open gap
- No fuse handling required
- No circuit-breaker racking
- Blade switches
- Arc resistant*
- Overcurrent control
- Integral ground position standard on each way
Key Definitions
Way
A compartmentalized section of a Vista, Vista Green, or Vista SD switchgear device. Ways are capable of performing switching and fault interruption for three-phase applications. Vista switchgear is designed with a common bus structure: There is no main/feeder hierarchy, so any way can be either a source or a load.
T-body/Elbow termination
A style of cable connection assembly that attaches to a bushing and terminates at a 90-degree angle.
Voltage and current sensing
Automatic detection of voltage or current on a way. A feature of remote supervisory and source-transfer Vista and Vista Green switchgear.
Bushings
Insulators that provide a means of connection to the bus inside the Vista switchgear tank.
Low-voltage enclosure (LVE)
A side-mounted enclosure that holds Vista switchgear’s metering, communication, and control components. The LVE is completely isolated from the medium-voltage components and is a feature of automated remote supervisory Vista switchgear models.
Arc resistance
The ability to endure and mitigate electric arcs. Vista and Vista Green switchgear are arc-resistant by design. All the critical switching components are inside a robotic-welded stainless steel tank.
Distributed system design
A design that uses multiple switchgear devices throughout the system to isolate faults and reroute power.
- IEEE Standards, including but not limited to applicable sections of C37.74—Institute of Electrical and Electronics Engineers (IEEE) Standard Requirements for Subsurface, Vault, and Pad-Mounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems up to 38 kV, in addition to C37.60, and C37.20.7
- Canadian Safety Association (CSA) and UL Standards**
- National Electrical Manufacturer’s Association (NEMA) and Ingress Protection (IP)—enclosure standards
- International Electrotechnical Commission (IEC) 60298 (IEC 62271-200)— Arc Flash Standard (applies to Vista and Vista Green switchgear only)
- American National Standards Institute (ANSI) ANSI C57.12.28
- Bushings and bushing wells compatible with ANSI/IEEE Standard 386-2016 for Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35kV
**Label provided upon request at the time of the order