Withrawable Switchgear

Features:

Compact design
Compartmental construction (metal-clad), which provides protection from the effects of internal arc fault
Comfort of operation
A system of intelligent interlocks, which eliminates switching errors
Possibility of manual or remote operation of the withdrawable part when the door is closed
Metal shutters which shield fixed contacts
High voltage indication in each cubicle
Small overall dimensions and wall-mounting help save costs (a free-standing option is also possible)
Cutting edge solutions enabling unmanned operation
Wide range of cable or busbar external connections
Long useful life
Routine inspections every 5 years
Facility of extension
Professional, easily available manufacturer's service
Environment friendly production and operation

Technical Data
Rated voltage kV 12 17,5 24 40,5
Rated insulation level
Voltage 1 min. 50Hz kV 28 42 38 50 95
Impulse withstand voltage kV 75 95 95 125 190
Rated current
continuous A 630, 1250, 1600, 2500, 3150, 4000 630, 1250, 1600 3150 630, 1250, 2000; 2500 1250
short-time withstand 1s KA up to 50 25 31,5 25 16
peak withstand kA up to 125 63 80 63 50
Withstant for internal arc faults kA/s 31.5/0.5; 40/1; 50/0.5 25/1 31.5/0,1 25/1 16/0.5
Degree of protection of the enclosure --- IP4X

The details of switchgear constructionare provided with the presentation ofits compartments.

  1. auxiliary circuits channel
  2. busbar bushing
  3. contact bushing
  4. bus bars
  5. a withdrawable part
  6. metallic shutters
  7. removable cover
  8. partition plate
  9. safety flaps
  10. current transformer
  11. voltage transformers on a withdrawable truck (option)
  12. earth- fault transformer
  13. earthing switch
  14. motor control of the earthing switch(option)
  15. protection unit
  16. rear door (option)
  17. maintenace cover
limit switch
visual signal (option)
 
- auxiliary circuits compartment
- busbar compartment
- connection compartment
- withdrawable part compartment