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GCK LV Withdrawable switchgear
1.General Description:
GCK LV withdrawable switchgear is consist of some combined
motor control units and other function units.Those units is assembled in sealed metal cabinet by up and down overlap. Every cabinet is connected by horizontal busbar in upper cabinet.Meanwhile,Function units in same cabinet is parallel connected onto vertical busbar.Switchgear is divided into horizontal busbar area,vertical busbar area,cable area and device mounting area.The function unit is separately assembled in respective room.It is not affect other unit to prevent accident while any function unit is out of order.
Own high breaking and making function,good dynamic stability,flexible wiring plan,easy assembly,novel construction and high protection level.It accords with IEC439,GB7251 and EBK36001 standard.
2.Working condition:
1.Ambient temperature;-5℃----+40℃
2.Altitude:≤2000m;(indoor use)
3.Relative humidity≤95%(when temperature is +20℃),Maybe there will be condensation influence because of temperature change,user must consider it.
4.Switchgear and vertical surface’s gradient is no more than 5%, and whole switchgear must be put parallel and level.
5.Service environment:should be avoided fire, explosion risk, serious pollution, chemical corrosion and violent vibration.User should discuss with supplier while they have special requirements.
3.Main technical data
Rated voltage of main circuit(V) | AC380 | |
Voltage of auxiliary circuit (V) | 380 | |
Rated frequency(Hz) | 50、60 | |
Rated insulating voltage(V) | 660 | |
Rated current(A) | Horizontal busbar | ≤4000 |
Vertical busar(MCC) | 1000 | |
Short-time withstand current(kA/1S) | 50、80 | |
Peak withstand current(kA/0.1S) | 105、176 | |
Power frequency testing voltage(V/1min) | Main circuit | 2500 |
Auxiliary circuit | 1760 | |
Busbar | Three-phase four-wire system | A、B、C、PEN |
Three-phase five-wire system | A、B、C、PEN、N | |
Level of protection | IP3O、IP4O |
4.Overall and assembly drawing