ZN1 is a three phase, metal-clad, air-insulated switchgear and all the units are factory-assembled, type tested and suitable for indoor application upto 12 kV. The units are designed as withdrawable modules and are fitted with a single bus bar system
The basic ZN1 panel is an incoming/outgoing feeder panel with Vacuum circuit-breaker using insertion technology. It is divided into circuit-breaker compartment (A) Bus bar compartment (B) Cable compartment (C) Control cabinet (D) for the secondary equipment and integral gas duct ( E ). Apart from this , there are variants for various operating needs.
The relevant customer specific documents explain details like technical data, equipment list for individual panels, schematic diagram and list of apparatus of individual switchgear.