FKN12A-12 compressed air load switch fuse combination electrical device

NegotiableUpdate on 05/25

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

FKN12A-12 compressed air load switch is suitable for controlling and protecting power equipment such as transformers, cables, and overhead lines in three-phase distribution systems of 12KV and below. It is particularly suitable for terminal substations and box type substations in regional and rural power grids.

Product Details

Overview
FKN12A-12D compressed air load switch, FKRN12A-12D series compressed air load switch fuse combination electric rod, is suitable for controlling and protecting power equipment such as transformers, cables, overhead lines, etc. in three-phase distribution systems of 12KV and below. It is particularly suitable for terminal substations and box type substations in regional and rural power grids. And it is applicable to the control and protection of ring networks and dual radiation power supply units.
The FKN12A-12D series E pneumatic load switch can switch between load current and overload current.
The FKRN12A-12D series gas operated load switch fuse strip combination can switch on and off load current, overload current, and short-circuit current of the circuit.

Model meaning

Environmental conditions for use
Upper limit of ambient air temperature:+40 ℃ Lower limit: -25 ℃
The altitude above sea level shall not exceed 1000m;
The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%.
The seismic intensity shall not exceed 8 degrees;
Places without fire, explosion hazards, chemical corrosion, and severe vibration;
Pollution level: II

structural characteristics
High voltage load switchGrounding switches, fuses, and mechanisms can be flexibly combined on a single frame, with a compact structure, small size, and easy installation;
The fracture surface is arranged in a direct manner, with stable current parameters for dynamic and thermal stability, and can be operated in one go;
Equipped with a static contact insulation cover, the ring main unit is structurally isolated, eliminating the need for phase to phase insulation partitions and broken insulation plugs, which can prevent arc short circuit accidents inside the cabinet;
Featuring a unique valve structure, the valve automatically isolates the fracture after the load switch is opened, providing excellent protection performance;
There is a reliable mechanical locking device between the load switch, grounding switch, and fuse, which meets the "five prevention" requirements;
There are two forms of electric operation with manual operation and AC/DC dual-use power supply, which facilitate the implementation of the "three remote" requirements of the power system.

Main technical parameters