· GN30-12 rotary type inner high voltage AC isolating switch is a new type of isolation switch with rotating contact type. The main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common chassis. The switch is opened and closed by rotating the contact knife.
· The GN30-12D type switch is based on the GN30-12 type switch with a grounded knife to meet the needs of different power systems. This product is compact in design, small in space, strong in insulation, easy to install and adjust, and its performance is in line with GB.
The requirements of 1985 "AC high-voltage isolating switch and grounding switch" are applicable to the rated voltage 12kV AC 50Hz and below within the power system, as a split-circuit circuit under the condition of no voltage and no load. It can be used with high voltage switchgear or it can be used alone.