Hxgn15-12 (F·R) box-type fixed AC metal closed ring network switchgear (referred to as "ring network cabinet") is a new type of switchgear designed for the transformation and construction of urban power grid. In the power supply system, it is also used for breaking load current and short circuit current as well as closing short circuit current. It is suitable for ac 3-10kV, 50Hz power distribution system. Widely used in urban power grid construction and renovation projects, industrial and mining enterprises, high-rise buildings and public facilities, as ring power supply unit and terminal equipment, the spring operating mechanism of electric energy, the mechanism can be manually operated, also can be electrically operated. Grounding switch and isolating switch are equipped with manual operation mechanism, the ring network cabinet has strong integrity, small volume, no danger of combustion and explosion, with reliable "five prevention" function.

This ring network cabinet conforms to the relevant provisions of GB3906, IEC60420 and other standards.

Conditions of use

Ambient air temperature: -15℃~+40℃;

● Altitude: 1000m and below;

● Humidity conditions: the daily average is not more than 95%, the daily average water vapor pressure is not more than 2.2kpa; The monthly average value should not exceed 90%, and the monthly average steam pressure should not exceed 1.8kpa.

● Earthquake intensity: not more than 8 degrees;

● No corrosive or flammable gases and other obvious pollution of the site.

Note: when the above normal conditions are exceeded, users can negotiate with the company.

Ordering instructions

The following information should be provided when ordering:

● Main circuit scheme, serial number or main circuit combination and arrangement diagram. Auxiliary circuit electrical schematic diagram and control circuit voltage.

● Switchgear floor plan.

● If you need non-standard main circuit and circuit scheme, you can entrust our company to design and produce.

● Other special conditions for use.

Structural performance characteristics

● Ring cabinet adopts 8MF type material assembly, modular hole E=20mm for the whole frame installation.

● Ring cabinet is equipped with FZN21-12D type load switch or FZRN21-12D type fuse combination electric appliance, which has isolation switch, vacuum load switch, grounding switch, and the isolation switch and grounding switch have obvious fracture.

● Isolation switch, vacuum load switch, grounding switch, cabinet door with perfect and reliable mechanical linkage, interlocking device, can effectively prevent misoperation, and ensure safety maintenance.

● Manual and electric operation.

● The door of measuring cabinet and instrument door are equipped with aluminum seal pin.

● Fuse combination electrical cabinet, fuse tube with firing pin. In the case of short circuit, the firing pin impinges on the tripping mechanism to achieve fast breaking.

● Ring network cabinet adopts front operation, reliable wall installation.