Method and device for detecting distributed contact resistance pressure of tulip contact

A plum-blossom contact and contact resistance technology, applied in the direction of measuring devices, force/torque/work measuring instruments, force measurement, etc., can solve problems such as the inability to realize the distributed measurement of the contact pressure of the plum-blossom contact, so as to ensure the current carrying capacity and The effect of safe operation and improvement of work reliability

Inactive Publication Date: 2019-07-05
FUZHOU UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the plum-blossom contact adopts a multi-piece contact finger parallel structure, the contact pressure on each contact i...

Method used

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  • Method and device for detecting distributed contact resistance pressure of tulip contact
  • Method and device for detecting distributed contact resistance pressure of tulip contact
  • Method and device for detecting distributed contact resistance pressure of tulip contact

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Embodiment Construction

[0024] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

[0025] refer to figure 1

[0026] A method for detecting distributed contact resistance pressure of plum blossom contacts, comprising the following steps:

[0027] (1) Rigidly weld the gold-plated optical fiber displacement sensor on the upper end of the plum-blossom contact finger, specifically: mark the solder joints on each finger of the plum-blossom contact static contact in the free state (the moving contact of the plum-blossom contact has not been inserted), and weld The position of the point is located in the middle of the thickness direction of the outer surface of each contact finger. The slender body of the optical fiber displacement sensor corresponding to the solder joint position of the plum blosso...

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Abstract

The invention relates to a method and device for detecting a distributed contact resistance pressure of a tulip contact, and relates to the technical field of power equipment. The method comprises thesteps of: rigidly welding a gold-plated optical fiber displacement sensor at the upper end of a contact finger of the tulip contact; zeroing deformation quantity of each contact finger of a static contact of the tulip contact in the circumferential direction before a moving contact of the tulip contact is inserted; inserting the moving contact of the tulip contact, and measuring the deformation quantity in the circumferential direction among different contact fingers by the rigidly welded gold-plated optical fiber displacement sensor; determining a radial deformation quantity among the different contact fingers according to the deformation quantity in the circumferential direction; and determining contact pressure distribution of the each contact according to the radial deformation quantity of the contact finger. The method and device of the invention has the beneficial effects that: off-line and on-line measurement for the distributed contact pressure of each contact finger of the tulip contact can be achieved, early contact hidden dangers caused by poor assembling working conditions and the like can be discovered in time, and working reliability of the tulip contact can be improved.

Description

technical field [0001] The invention relates to a distributed contact resistance pressure detection method and device of a plum blossom contact, and relates to the technical field of electric power equipment. Background technique [0002] The plum blossom contact is a high-voltage / high-current sliding power connector with a multi-piece contact structure in parallel. It is widely used in medium and high voltage power such as disconnectors, switch cabinets, and gas-insulated combined electrical appliances (GIS) as the main conductive circuit connector. in the device. The contact pressure between each contact finger of the plum blossom contact and the conductor is provided by several annular holding springs. In the process of equipment design, installation and field operation, due to the influence of assembly tolerance, alternating ambient temperature and load current, the plum blossom contact The assembly conditions such as the docking depth between the moving contact (conduc...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01L1/24
CPCG01L1/242G01L5/0028
Inventor 关向雨
Owner FUZHOU UNIV
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