Test method suitable for multi-span transmission line ice-shedding fault research

A technology of transmission wire and test method, which is applied in the field of power transmission and distribution, can solve problems such as inconvenient operation, high cost, and unfavorable parameters, and achieve the effects of easy processing, convenient installation, and easy purchase

Inactive Publication Date: 2019-06-04
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Few scholars have carried out de-icing jump tests on real transmission lines, because it is inconvenient to operate and expensive, which is not conducive to extensive parameter research

Method used

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  • Test method suitable for multi-span transmission line ice-shedding fault research
  • Test method suitable for multi-span transmission line ice-shedding fault research
  • Test method suitable for multi-span transmission line ice-shedding fault research

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and Simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive purposes on...

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Abstract

The invention relates to a test method suitable for multi-span transmission line ice-shedding fault research. The method comprises steps: 10, according to the prototype line structure parameters and the prototype line and model line material parameters and in combination of test site conditions, each similarity coefficient of a test model is determined through a similarity theory, wherein the prototype line structure parameters comprise a line model, a span, a height difference, sag, an ice thickness, an ice-shedding form and the like. The test method suitable for multi-span transmission lineice-shedding fault research has the beneficial effects that multiple parameters are adjustable, and the applicable research range is wide; breakthrough from nothing for the test research based on a scale model in the field is realized, and great promotion significance is realized for the related research; indoor construction can be realized, the mounting is convenient, the assembly is easy to process and prepare, and the practicality is strong.

Description

technical field [0001] The application belongs to the technical field of power transmission and distribution, and in particular relates to a test method suitable for research on de-icing faults of multi-speed transmission wires. Background technique [0002] Icing of transmission lines refers to a natural phenomenon in which moisture or rainfall in the air freezes to form frost. Under certain natural conditions such as temperature and wind, the falling off of the ice coating on the transmission line will cause the line to vibrate up and down and swing laterally, which is also called "ice jump" in engineering. During the de-icing and jumping process of the transmission line, the gaps between the conductors of each phase and between the conductors and the ground wire may be smaller than the corresponding insulation gap requirements, resulting in electrical accidents such as phase-to-phase flashover, tripping, and burning wires, and even due to severe wire tension Changes caus...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01N3/02G01N3/08
Inventor 马伦杨晓辉吕中宾张博黄桂灶伍川叶中飞魏建林谢凯任鹏亮
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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