Outdoor high voltage intelligent demarcation switch

JNWF-12 outdoor intelligent high voltage AC vacuum load switch (referred to as the load switch), is a new product of our company developed on the basis ofdomestic and foreign similar product performance. For distribution line of three-phase AC 50Hz, voltage 3-12kV, with manual and automatic operation function. The load switch with SPS power transformer, CWFC-1 intelligentcontroller to be installed in the power supply, 3-12kV, he can automatically diagnose, with no lines of communication to achieve grid automatic isolation fault segment, automatic recovery of power supply of non failure section, alsocan be connected with the communication system, the control unit sub stationand master control automation remote automation and computer implementation. To improve the reliability and the automation level of power supply. Applicable to substations, industrial and mining enterprises and the city, rural power grid protection and control and the city, automationdistribution network and places with frequent operation.

Product features:

The switch arcing, zero pressure SF6 gas insulation, improved switchinsulation, corrosion resistance performance and internal device; switch twofracture (isolation switch, vacuum interrupter), and two fracture serieslinkage, there is a time difference in closing gate (vacuum interrupterdisconnect after closing, the isolation knife before disconnecting), meet therules of safe operation requirements of the power sector, greatly increases the safety switch.

Switch storage mode using spring machinery with storing energy and electromagnetic mechanism with free tripping device mode, automatic powerenergy storage, without pre storage.

Import cable using integrated full sealed conical injection mode, all closed structure design of switching mechanism, 15 years free maintenance;

Switch built in two-phase or three-phase through core type current transformer,switch provides short-circuit closing holding current and telemetering current.

Unique "to close, no voltage release" principle, completely avoid the batteryuse, meet the demand of distribution automation;

High grade, sealed air plug design, distribution automation interface with high reliability.

Reasonable structural design, convenient installation, flexible operation manual / automatic.