FZW28-12F/630A Outdoor High Voltage User Boundary Load Switch | 12kV Distribution Automation Protection Equipment

Overview

The FZW28-12 series outdoor boundary vacuum load switch is suitable for outdoor three-phase AC distribution systems with rated voltage 12kV and rated frequency 50Hz, used for making and breaking load current and making short-circuit current. FZW28-12F/630A Outdoor High Voltage User Boundary Load Switch has built-in zero-sequence voltage transformer and intelligent controller interface, can automatically isolate user-side single-phase earth faults and phase-to-phase short-circuit faults, and is a key device for distribution network automation.

It is suitable for substations, industrial and mining enterprises, urban and rural power networks as protection, as well as for urban and rural distribution automation networks and frequent operation places.

The boundary load switch consists of FZW28-12 vacuum load switch and controller, electrically connected via aviation socket and outdoor sealed control cable. It can reliably detect and judge milliampere-level zero-sequence current and phase-to-phase short-circuit current inside and outside the boundary, and is suitable for distribution systems with different neutral earthing methods.

Model and Designation

Main Technical Parameters

Control Device Installation Diagram

Switch Body Installation Diagram

Ensure that FZW28-12F/630A Outdoor High Voltage User Boundary Load Switch FZW28-12F boundary load switch, before installation, confirm that the vacuum interrupter contact gap and overtravel parameters conform to factory values, the zero-sequence current setting of the controller is adjusted according to the actual line, the aviation plug is sealed and waterproof, and the FTU communication wiring is firm...