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Application of Composite Strap Touch Finger in High Voltage Apparatus


Release time:

2022-05-16

In the high-voltage electrical appliance industry, the electrical connection must have three characteristics of safety and stability. The heating power is small, the contact resistance is small, stable and even the strap touches the finger, which can ensure good electrical connection performance. According to the actual design requirements and experience, the technical principle and typical application of the contact finger of the composite watchband are briefly introduced.

Application of Composite Strap Touch Finger in High Voltage Apparatus

Composite strap touchrefers to inHigh voltage apparatusIndustry, electrical connections must have three characteristics of safety and stability. The heating power is small, the contact resistance is small, stable and even the strap touches the finger, which can ensure good electrical connection performance. According to the actual design requirements and experience, a briefComposite strap touchRefers to the technical principles and typical applications.

复合表带触指

1Common problems and causes of electrical connection.

The main failure mechanism of electrical connection is poor contact, which is mainly manifested as increased contact resistance or unstable contact resistance. Poor electrical contact will cause abnormal heating of the product, exceeding the temperature rise allowed by the relevant standards, thereby affecting the insulation capacity of the product and even causing a short circuit. The general phenomenon and possible causes of poor contact are as follows:

2,Composite strap touchRefers to the technical introduction

Common belt finger types on the market include belt finger, spring finger, plum blossom finger, self-reliance finger, etc. Reliable electrical connection is very important for power equipment and power systems, so it is very important to choose the right contact scheme.

  3,Composite strap touchrefers to the contact theory

Electrical connection refers to the connection management method of enterprise electric energy transmission system between conductors through various mechanical forces. However, the contact surface generated by the mechanical force (the surface is not in contact with the building area) is not equal to the effective contact surface of the load operating current. The pollution layer of metal processing surface includes ash layer, oil film and metal compounds, which makes students effectively improve the contact area of different areas far less than the direct contact area of the surface, and the current channel is mainly concentrated in a single contact point, resulting in an increase in social contact resistance. In other words, what appears to be a connection between faces is actually a connection between points and points.

4,Composite strap touchRefers to the advantages

Since its introduction in the early 1960 s, this technology has been used successfully for more than half a century. It can operate safely under the conditions of temperature, vibration and impact, and can fully meet the requirements of the switch life test with high current and high load. Compared with spring touch fingers, the advantages of strap touch fingers are mainly concentrated in three aspects: small groove size, low contact resistance, and stability.

   5,Composite strap touchRefers to the development trend

Miniaturization is the trend of the future. The technology of the strap touch finger is adapting to this change and developing in the direction of miniaturization.

The main products of Nantong Moore New Material Technology Co., Ltd.GILConnectors, beryllium cobalt copper, watchband contact fingers, spring contact fingers, special-shaped plum contacts, composite watchband contact fingers, charging pile current connectors, chrome zirconium copper, copper alloy, copper alloy springs, etc. Nantong Moore New Material Technology Co., Ltd. is developed from its predecessor Nantong Moore Electric Co., Ltd., which is an enterprise specializing in the design, development and research of high-strength and high-conductivity alloy materials and electrical connection products. The company aims at and tracks international advanced technology, internal introduction and external connection, absorbing innovation, actively exploring and constantly entering. In the industry has made the majority of customers a high degree of recognition and reputation.

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