Primary/secondary fusion pole-mounted load switch
The primary/secondary fusion complete sets of pole-mounted switches can be divided into complete section/interconnecting circuit breaker, complete demarcation circuit breaker, complete section/interconnecting load switch, and complete demarcation load switch according to the application functions of switches. The primary/secondary fusion complete feeder terminal can realize local feeder automation function independent of the distribution automation master station and communication; realize local line selection of single-phase earth fault, regional positioning and isolation through the short circuit/earth fault detection technology, voltage-free opening, fault path adaptive delay call closing and other control logics, and adaptive multi-branch multi-connection distribution network frame structure; and realize isolation of fault area and restoration of power supply in non-fault area.
FZW28 type user demarcation pole-mounted vacuum load switch
FZW28 is the user demarcation load switch, commonly known as “watchdog”. On 10kV feeder line, when fault happens to a T-connection user branch line or the inside, it usually causes power outage to the trunk line and other adjacent users. FZW28 user demarcation load switch is installed at the asset demarcation point of 10kV overall distribution line, which is able to realize automatic clearing of single earth fault and automatic isolation of phase-to-phase short circuit fault, ensure safe use of electricity of users without fault. It is an ideal device for solving the above accidents involved.
FLW□ type pole-mounted SF6 load switch
SF6 pole-mounted load switch is designed in order to satisfy the needs for renovation of urban and rural grids and distribution network or distribution automation system. Switches are installed in various forms, used in the 10kV overhead distribution network system. It can be operated manually, electrically and remotely. In coastal area environment with large salt content in the air, high humidity, serious pollution and many birds, its advantages are more obvious in ensuring safe operation of equipment. It is used for the line branch, section and interconnection, and can control and realize balanced power supply to the network and rapid restoration of the areas not affected.