High voltage disconnect switch Direct Supply from China 12kV 40.5kV 72.5kV 225kV

Product introduction

DS1-12、40.5、72.5 switch disconnectors  are kinds of outdoor HV electricity transmission equipment’s at three-phase AC frequency of 50Hz/60Hz. It is used for breaking or connecting HV lines under no loads so that the power lines can be changed and connected and the way the electricity runs is changed. In addition, it can be used to exercise safe electrical insulation for such HV electric apparatuses as bus and break.

GW1  switch disconnector have two insulators with vertical open jewels. Vertical breaks Will be formed after closing, phase spacing can be educed. Its structure is simple, and it is a Widely used structure in early switch disconnector 

Product is made of conductive am, post insulator, operating insulator, and base. Conductive arm is derived by operation and connecting rod about 50 •tums up and down, complete the opening and closing operation. According the need, we can match manual or electric mechanism.

Main characteristic

• The conductive arm, made of Cu-alloy of high conductance rate is characteristic of high mechanical strength, large radiation area.
• Self-energy contact finger-Pressure and stable, self-energy contact finger is characterized by high elasticity, high conductivity, high temperature resistant, corrosion resistant properties. The end of the contact finger is fixed, it can avoid increasing contact resistance. Tile contact finger has been acknowledged by the China National Utility Model Patent. The structure has been us的 more than ten years, more than 100000 sets, without overheating feedback.
• Tile dynamic contact part adopts the self-cleaning structure. Tile products cleaning the contact surface during close and open operation itself, which reduce the contact resistance and avoid healing of contact surface.
• The rotating parts of Switch disconnector are designed to be free maintenance. Imported self-lubricating shaft sleeve, high quality stainless steel shaft pin, long-lasting aviation grease are used for forever flexile rotation and no clamping stagnation
• All Switch disconnectors are delivered after complete assembly and adjustment. The product is convention to install, significantly reducing installation work on site.
• Provide one-key sequential control "double confirmation" function expansion

Main technical parameters

Among these voltage levels 12kV-345kV Disconnect Switch, the rated short-circuit breaking current is 63kA, and customization is available.

Order notice 

Product model, rated voltage, rated current, creepage distance must be specified at the goods-ordering time;

The disconnect switch offers several options of grounding;

The operating mechanism, motor voltage, control voltage and the number of contacts for auxiliary switch;

Installation method.