News Center

Learn about the news of Nantong Moore's new materials and the fresh information of the industry.

Application of the contact finger of the watchband in the high voltage apparatus


Release time:

2022-05-23

The strap contact finger is a specially shaped elastic connector that has been used for more than 50 years. It is an ideal choice for high current, high plug life and harsh working conditions. It is suitable for the electrical connection of various high-voltage electrical appliances, and is widely used in high-voltage switches, circuit breakers, bushings, busbars, etc.

Application of the contact finger of the watchband in the high voltage apparatus

  Application of strap touch finger in high voltage electrical apparatus

The strap contact finger is a specially shaped elastic connector that has been used for more than 50 years. It is an ideal choice for high current, high plug life and harsh working conditions. It is suitable for the electrical connection of various high-voltage electrical appliances, and is widely used in high-voltage switches, circuit breakers, bushings, busbars, etc.

表带触摸

In the power transmission and distribution industry, electrical wiring should be safe, efficient and stable. The heating power is small, the contact resistance is small, the contact force is stable and uniform, and the excellent electrical connection performance is guaranteed. According to the actual design requirements and experience, the technical principles and typical applications of the strap touch finger are briefly introduced.

Common problems and causes of electrical connection

The main failure mechanism of electrical connection is poor contact, which is manifested in the form of increased contact resistance or unstable contact resistance. Poor electrical contact will cause abnormal heat generation of the product, which exceeds the allowable temperature rise value specified by the national standard, thereby affecting the insulation capacity of the product and even short circuit. In general, the phenomenon of poor contact and possible causes are as follows:

Watch strap touch technology introduction

Common types of contact fingers on the market include watchband contact fingers, spring contact fingers, plum blossom contact fingers, self-reliance contact fingers, etc. Reliable and effective electrical connection enterprises are critical to power electronic equipment and power management systems, so it is important to choose a suitable contact design.

contact theory

Electrical connection refers to the electrical energy transfer connection between conductors by mechanical force. However, the contact surface (surface contact area) generated by this mechanical force is not equal to the effective contact surface of the load current. The pollution layer on the metal surface includes ash layer, oil film and metal compound, so that the effective contact area is much smaller than the surface contact area, and the current channel is concentrated in a single contact point, resulting in an increase in contact resistance. That is, the connection between a surface and a surface is actually a connection between a point and a point.


Tag:

All
  • All
  • Product Management
  • News
  • Introduction
  • Enterprise outlets
  • FAQ
  • Enterprise Video
  • Enterprise Atlas

Related News


Moore New Materials

Enterprises engaged in the design, development and research of high-strength and high-conductivity alloy materials and electrical connection products.

All
  • All
  • Product Management
  • News
  • Introduction
  • Enterprise outlets
  • FAQ
  • Enterprise Video
  • Enterprise Atlas