Voltage equalizing structure for extra-high-voltage arrester
A voltage equalizing structure and arrester technology, applied in the field of arresters, can solve problems such as failure to control potential distribution, arrester transportation, and impact on operational safety performance, and achieve the effect of ensuring a stable structure
Active Publication Date: 2011-09-07
CHINA XD ELECTRIC CO LTD
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[0002] With the increase of the voltage level of the power transmission system, the height of the GIS arrester is getting higher and higher, the potential distribution of the core of the arrester along the axis must be controlled within 15%, and the core of the UHV GIS arrester needs to be installed at different points. The pillars have ensured the stable structure of the arrester core, while the pressure equalization structure of the traditional GIS arrester cannot meet the requirements for controlling the potential distribution. have an impact
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[0018] refer to figure 1 , figure 2 As shown, the pressure equalization structure of the UHV arrester includes a horizontal tank and arresters arranged horizontally along the cavity of the horizontal tank. The arresters are fixed and supported on the side walls of the horizontal tank by three points, wherein the The lightning arrester includes a lightning arrester core 4 and a pressure equalizing device 2 arranged on one side of the lightning arrester core 4, the top of the pressure equalizing device 2 is connected to the end side outlet of the horizontal tank through a high-voltage outlet device 3; the pressure equalizing device 2 includes The pressure equalizing cover 5 connected to the arrester core 4, and the pressure equalizing ring 7 and the equalizing arc 8 connected through the connecting rod 6 and sleeved on the arrester core 4; the equalizing ring 7 and the equalizing arc 8 are connected through the connecting rod 6 are fixed on one end of the pressure equalizing c...
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The invention relates to an arrester and discloses a voltage equalizing structure for an extra-high-voltage arrester. The voltage equalizing structure comprises a horizontal tank body and an arrester arranged horizontally along the cavity of the horizontal tank body and fixedly supported on the side wall of the horizontal tank body respectively through three points; the arrester comprises an arrester core and a voltage equalizer arranged at one side of the arrester core; the top of the voltage equalizer is connected with the side outlet of the end part of the horizontal tank body through a high voltage wire outlet device; the voltage equalizer comprises a voltage equalizer shield connected with the arrester core, a voltage equalizing ring and a voltage equalizing arc, wherein the voltage equalizing ring and the voltage equalizing arc are connected by a connecting rod and sleeved on the arrester core and are also sequentially fixed to the lower end of the voltage equalizing shield respectively through connecting rods. The voltage equalizer with such a structure ensures the axial potential distribution of the extra-high-voltage GIS (Gas Insulated Switchgear) arrester along the core, the installment of an insulating support, the connection of the high voltage wire outlet device and ensures the operation reliability of the extra-high-voltage GIS arrester.
Description
technical field [0001] The invention relates to a lightning arrester, in particular to a voltage equalizing structure of a side-exited UHV GIS lightning arrester. Background technique [0002] With the increase of the voltage level of the power transmission system, the height of the GIS arrester is getting higher and higher, the potential distribution of the core of the arrester along the axis must be controlled within 15%, and the core of the UHV GIS arrester needs to be installed at different points. The pillars have ensured the stable structure of the arrester core, while the pressure equalization structure of the traditional GIS arrester cannot meet the requirements for controlling the potential distribution. make an impact. Contents of the invention [0003] The object of the present invention is to provide a voltage equalizing structure of a UHV (1000KV) arrester, which can solve the potential distribution of the UHV arrester along the axial direction of the core bo...
Claims
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IPC IPC(8): H01C7/12H01C8/04H01G9/18H01T4/02
Inventor 何计谋杨飞军张宏涛祝嘉喜林震饶斌
Owner CHINA XD ELECTRIC CO LTD