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DS4D 420kV 550kV High voltage disconnect switch
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Key attributes
Brand ROCKWILL
Model NO. DS4D 420kV 550kV High voltage disconnect switch
Rated voltage 550kV
Rated normal current 4000A
Rated frequency 50/60Hz
Rated peak value withstand current 160kA
Rated short-time withstand current 63kA
Series DS4D
Product descriptions from the supplier
Description

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

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

 

 

Know your supplier
ROCKWILL
Rockwill Electric GROUP Co., Ltd 16yrs 700++ staff 108000m²+m² US$150,000,000+
Rockwill Electric GROUP Co., Ltd
16yrs 700++ staff 108000m²+m² US$150,000,000+
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m²m² Total staff: 700+ Highest Annual Export(usD): 150,000,000
Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150,000,000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus
Whole life care manager
Full lifecycle management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.
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