Custom Metal-Enclosed Switchgear
Introduction
Other Metal-Enclosed Switchgear
S&C Custom Metal-Enclosed Switchgear — incorporating interrupter switches and power fuses in rugged enclosures featuring welded construction — is tailored to meet your specific distribution system needs.
Available in ratings of 4.16 kV, 13.8 kV, 25 kV, and 34.5 kV, S&C Custom Metal-Enclosed Switchgear is ideal for applications having unique requirements beyond the scope of S&C’s pre-engineered switchgear, including:
- Complex automatic source-transfer schemes, with three or more incoming power sources; multiple split-bus sections; or ring-bus arrangements.
- Applications with hot-sequence metering.
- Applications with special installation requirements, such as transformer primary unit substations, and those requiring special-purpose components such as grounding switches, control power transformers, metering panels, or capacitors for power-factor correction.
- Applications requiring unusual switchgear layouts, such as “U-shaped” configurations.
Custom Metal-Enclosed Switchgear features:
- Rugged 11-gauge steel enclosures.
- 600- and 1200-ampere load switches with duty-cycle fault-closing ratings.
- One-cycle minimum total clearing of fault currents with S&C SM and SML Power Fuses.
- Choice of unique response curves with S&C Fault Fiter® Electronic Power Fuses.
- Sophisticated, pre-engineered automatic source-transfer controls.
- Three-phase load protection. S&C open-phase detection relays and overcurrent relays isolate three-phase loads from single-phasing and other open-phase conditions.
- Single-phase load protection. Fuses, unlike circuit breakers, selectively isolate only faulted phases of feeders serving single-phase loads.
- Low purchase cost compared to metal-clad gear.
- Light weight. Easier to handle than metal-clad gear.