ZSG-12 AC Metal Enclosed Switchgear
◆ Applicable to 3.6 to 12kV medium-voltage system
◆ Rated current 630 to 5000A
◆ Safe sealing structure
◆ Resistance to internal arc
◆ Advanced ventilation design
◆ Independent pressure release channels
◆ Square neck bolts plus protrusion structure avoid bolt head exceeding frame outline to combine panels easily
◆ All metal partitions design. Each compartment with independent pressure release channels
◆ Great insulation coordination design. Improved dielectric performance and reduced partial discharge
◆ Advanced ventilation design keep product temperature rise at a low level
-
Earthing Switch Syste
◆ Withstand at least twice short circuit closing currents
◆ Operated manually or by motor
◆ Interlock with breaker and cable compartment for safety -

Vacuum Circuit Breaker Compartment
◆ Metal rails for the VCB truck to be racked in and out
◆ Multi-finger contactor (Tulip cluster) on VCB and static contactor in contact box on cabinet are used to form main circuit
◆ VCB truck rack in and out by manual or motor
◆ Safe shutters are provided for isolate movable contact and static contactor when VCB in test position
◆ Safe shutters can be locked when maintenance after VCB truck racked out . -
Busbar System
◆ High conductivity copper and silvered connect area, reduce the energy consumption of the equipment joined with high-strength bolts and dished pressure washers to improve connection reliability covered with flame retardant heat shrink tube and insulation cover on joint.
◆ The height of cable terminal is increased, convenient for installation and maintenance.
◆ Metal partition and insulation bushing are installed in compartment side to avoid internal arc failure expansion -
Control Compartment
◆ Mesh plate for secondary components installation conveniently
◆ For housing protection, control, measurement and other secondary components, to control/measure/monitor remotely or locally
◆ Cable holes are provided in side for connecting control cables between panels
◆ Height is customized.



