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Electrical Switchgear
Load Interrupter Metal Enclosed Electrical Switchgear. Olsun Electrics’ Load Interrupter Metal Enclosed Electrical Switchgear provides a reliable and safe method of switching as well as overcurrent protection for primary feeders. Load Interrupter Switches can be supplied as stand alone units [single, free standing section] or as an option with Olsun Unit Substation Transformers [multiple sections]. Olsun’s flexible engineering and manufacturing capabilities can provide custom designed electrical switchgear to fit most applications, including close coupling to a dry type transformer or liquid filled transformer.
- 5kV 200 Amperes
- 5kV, 15kV or 34.5kV – 600 or 1200 amp
- BIL ratings through 150kV
- Switch viewing window
- Mechanically interlocked fuse access door
- Plated terminals
- Structural steel welded base
- Internal ground bus
The Olsun Load Interrupter Electrical Switchgear Meets or Exceeds the Following Industry Standards:
- ANSI/IEEE C37.20.3 & C37.20.4
- ANSI C37.57 & C37.58
- NEMA SG-5
- CSA C22.3.1
Two Metal Enclosed Electrical Switchgear Enclosures are Available:
- NEMA 1 indoor
- NEMA 3R outdoor
Each independent frame of switchgear is made of bolted sheet steel gauge according to UL requirements. Each frame is adequately braced and constructed to properly and safely function under normal operating or short circuit conditions.
The frame and panel surfaces are phosphate treated and painted with a powder coated corrosion resistant polyester enamel ANSI 61 light gray finish.
The main bus is three-phase uninsulated tin plated or silver plated, approximately sized and braced for the continuous and momentary current ratings of the switchgear. Main bus stand-off insulators and supports are rated for the appropriate system impulse level requirements. Insulated bus system is available as an option.
A copper ground bus with a short circuit rating equal to that of the integrated assembly is furnished, and extends throughout the full length of the medium voltage switchgear. Ground connections are readily accessible for customer use and provided at each end of the line-up.