summary:

FZW28-12F series outdoor boundary vacuum load switch is applicable to outdoor three-phase AC power distribution system with rated voltage of 12kV and rated frequency of 5OHz, which is used for opening and closing load current and closing short circuit current.

FZW28-12F series outdoor boundary vacuum load switch is applicable to substations, industrial and mining enterprises, urban and rural power grids for protection and control, urban and rural power grids for automatic distribution networks and places with frequent operation.

FZW28-12F series outdoor boundary vacuum load switch is used for the operation control switch of overhead line distribution system, which has many types. It has the advantages of oil-free, simple mechanism, reliable performance and no maintenance, and has been widely used so far. This product is combined with FDR type fault detector or RTU remote control terminal device and other equipment to form a very simple distribution automation system. It can realize automatic location of overhead line faults and automatic isolation of fault sections. In order to update the existing distribution switchgear in our country and realize the transformation of distribution equipment characterized by oil-free and automation.

Features:

Automatic locking of inter-phase short circuit fault: when the same short circuit fault occurs in the user's branch line, the dividing switch will open and lock immediately after the breaker or recloser protection of the substation trips. After the substation recloses, other branch users on the feeder line will quickly resume power supply;

Quickly locate the fault point: after the boundary switch protection action is caused by the user's branch line accident, the responsible user is powered off, and the responsible user actively submits the accident information. The power company can send personnel to the site to check the cause of the accident through the handheld computer or communication module;

Automatic removal of single-phase grounding fault: when single-phase grounding fault occurs in the user branch line, the dividing switch will automatically open; The substation and other branch users on the feeder can not feel the occurrence of the fault. This switch can realize the following functions: quick-break protection, over-current protection, three-time reclosure, event recording, anti-inrush protection, zero-sequence protection, real-time clock, post-reclosure acceleration, real-time status query, intelligent handheld computer control, local/remote setting settings, active fault reporting, GSM short message function.