DS4D 330kV 345kV 420kV 550kV High voltage disconnect switch manufacturer

Product introduction

This switch Switch Disconnector is a Kind of outdoor HV electricity transmission equipment’s at three-phase AC frequency of 50Hz/60Hz.lt is used for breaking or connecting HV lines under no loads so that there 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 breaker. The switch can open and close inductance/capacitance current and is able to open and dose the bus to switch current

Main characteristic

• The product chassis adopts an integrated design to ensure that the upper conductive does not generate a large displacement under the tensile force of the terminal, and improves the reliability of the product closing.

• The bearing housing is designed according to the maintenance-free requirements. The bearing seat is sealed by a fully sealed rain cover, wool felt seal and sealing ring. Water vapor, dust and harmful gases cannot enter, and the grease in the bearing does not drain during the life cycle., does not cure, especially suitable for Windy sand areas

• The finger is made of pure copper and has a silver plating process. It has strong flow capacity and tong mechanical life. The stamping process ensures the reliability of contact and finger contact

• The contact finger pressure is proportional to the primary insertion depth of the contact, the sensitivity is low, the contact insertion area is long, the on-site debugging is difficult, and the product is highly reliable against adverse interference such as harsh environment (winding of the flexible Wire).

• The earth switch uses a torsion spring to balance its own weight and torque, making it light and flexible. The base adopts a suspended structure. which is convenient for on-site adjustment. The grounding switch static contact adopts self-powered plum-shaped finger. which has simple structure, many contact points and high technical performance index.

• Provide one-key sequential control "double confirmation" function expansion.

Main technical parameters

Among these voltage levels 225kV/230kV/330kV/345kV Disconnect Switch, the rated short-circuit breaking current is 63kA, and customization is available.

Order notice 

Please indicate the service condition;

Please indicate the product type、 Rated voltage、 Rated current、 Rated short time withstand current、creepage distance and so on;

Please indicate the motor voltage、 control circuit’s voltage、pollution region and auxiliary switch connection number;

Please indicate whether the steel bracket is provided;

Please indicate whether the interphase cable is provided, and specify the cable length and type;

Please indicate other special requirements