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Manufacturing process for great-current fixed contact terminal with great contact pressure

A technology of manufacturing process and contact pressure, applied in the direction of circuits, electric switches, electrical components, etc., to achieve the effect of reasonable process, enhanced conductivity and reliable contact

Inactive Publication Date: 2008-04-02
SHANGHAI HUAMING POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for high voltage and high current, especially for on-load tap-changers that require more than 800A, the above contact forms are difficult to meet the requirements.
For this reason, the inventor has designed a high-current static contact, but through actual use, it is found that there are certain defects in contact reliability and current conduction capacity.

Method used

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  • Manufacturing process for great-current fixed contact terminal with great contact pressure
  • Manufacturing process for great-current fixed contact terminal with great contact pressure
  • Manufacturing process for great-current fixed contact terminal with great contact pressure

Examples

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Embodiment Construction

[0010] A manufacturing process of a high-current static contact with high contact pressure mainly includes the following steps: the contact portion of the static contact body is provided with a "V"-shaped groove. The structure of the high-current static contact with high contact pressure manufactured by the present invention will be further described in detail below with reference to the accompanying drawings. Referring to Fig. 2, the static contact body 10 is a rectangular tube with a "V"-shaped opening, and a "V"-shaped groove 12 is opened at the contact part of the contact, which can increase the contact pressure, make the contact more reliable, and enhance the flow-conducting capacity. In addition, the main body 10 has a plurality of transverse grooves 11 in the length direction, so as to increase the number of contact points of the contacts, reduce the contact resistance, and enhance the conduction capacity. Referring to FIG. 3 , the spring clip 20 adopts a structure simi...

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PUM

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Abstract

The invention discloses a process for manufacturing a large-current static contact with large contact pressure, mainly comprising the following step of providing a V-shaped groove on the contact position of the body of the static contact. The invention is reasonable in process and skillful in design, and the manufactured large-current static contact with large contact pressure increases the contact pressure due to the V-shaped groove arranged on the contact position of the body of the static contact, thereby the contact is more reliable, the current conductivity is improved. The invention has great promotional value.

Description

technical field [0001] The invention relates to the technical field of electrical switch manufacturing, in particular to a manufacturing technology of a static contact of an on-load tap changer. Background technique [0002] An electric switch usually consists of a fixed contact - a static contact, and a moving contact - a moving contact. The contact and separation of the moving contact and the static contact form the electrical opening and closing. Commonly used contact forms are: 1. Single-point contact, 2. Two-point clip type, 3. Four-point clip type, etc. In the existing on-load tap-changer, the above contact forms are adopted. However, for high voltage and high current, especially for on-load tap-changers that require more than 800A, the above contact forms are difficult to meet the requirements. For this reason, the inventor has designed a high-current static contact, but through actual use, it is found that there are still certain defects in contact reliability and...

Claims

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Application Information

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IPC IPC(8): H01H11/04H01H1/06H01H1/36
Inventor 肖日明
Owner SHANGHAI HUAMING POWER EQUIP CO LTD