High-voltage insulator and a high-voltage electric power line using said insulator

一种绝缘体、电力线的技术，应用在高压电力线领域，能够解决增大制造和装配成本、冲击避雷器增加HEPL复杂性等问题

Active Publication Date: 2011-02-23
SIMRAY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the need for a large number of surge arresters adds substantially to the complexity of the HEPL, with a corresponding increase in manufacturing and assembly costs

Method used

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  • High-voltage insulator and a high-voltage electric power line using said insulator
  • High-voltage insulator and a high-voltage electric power line using said insulator
  • High-voltage insulator and a high-voltage electric power line using said insulator

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Embodiment Construction

[0049] figure 1 and 2 A single cylindrical support insulator 100 made of a hard dielectric material such as ceramic is shown having a cylindrical insulating core 2 comprising a helical insulating ridge 3 . This insulator is used for example in Figure 18 HV conductors (conductors subjected to high voltage) are protected in a HEPL of the type shown1. The insulator is connected to the high voltage conductor 1 and to the grounded conductive support 16 respectively by means of a metal fixing device comprising a first (upper) fastening element (not shown) and a second (lower) fastening element 15 (see Figure 18 ).

[0050] According to a first main embodiment of the invention, the insulator also comprises a multi-electrode system (MES) with m electrodes 5 . The minimum value of m can be suitably determined according to the principles developed for the ring type long flashover arrester (LFAL-10) rated at 10 kV. According to the teaching of Russian Patent No. 2299508, H02H3 / 22,...

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Abstract

The high-voltage insulator for securing a high-voltage wire in an electrical plant or in an electric power line comprises an insulating body, the first end of which is used for mechanically connecting to a high voltage wire and / or to a fixing device, the second end being provided with a metal fixture which is fastened thereto and is used for attaching the insulator to a tower. In order to impart lighting protection properties to the insulator, it is also provided with a multi-electrode system consisting of m electrodes, which are mechanically coupled to the insulation body and are arranged between the ends thereof. The electrodes are disposed in such a way as to form an electric discharge between the adjacent electrodes, between the electrode adjacent to the first end of the insulation body and the high voltage wire or the fixture thereof and between the electrode adjacent to the second end of the insulation body and the metal fixture connected to the tower. The insulator is provided with means for compensating the reduction of the insulator creepage path caused by the multi-electrode system. The electric power line using the insulators of this type do not require lighting dischargers.

Description

technical field [0001] The invention relates to a high-voltage insulator, which can be used to protect high-voltage conductors in power plants or high-altitude power lines and power networks. The invention also relates to a high voltage power line (HEPL) using such an insulator. Background technique [0002] Known high voltage support insulators consist of an insulating rib core (notably made of ceramic) with ridges and at its ends metal lugs for securing the insulator to high voltage conductors and support structures. Edge (refer to High voltage techniques. Ed.D.V. Razevig, Moscow, "Energiya" Publishing House, 1976, p.78). [0003] Disadvantages of prior art insulators include the occurrence of a flashover in the air gap between the metal flanges in the event of a lightning overvoltage, which is then converted to operational under the influence of the operating frequency voltage applied to the high voltage conductor frequency of arcing, which may damage insulators. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14H02H9/06
CPCH01B17/48
Inventor G·V·波德波金
Owner SIMRAY ELECTRIC CO LTD
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