Double hemisphere T-shaped ceramic discharge tube
A technology of ceramic discharge tubes and ceramic tubes, applied in circuits, electrical components, spark gaps, etc., can solve the problems of easy aging, difficult production, difficult maintenance and other problems, and achieve high reliability, easy mass production, and simple structure.
Pending Publication Date: 2019-01-15
WUHAN WEICHUANGYUAN ELECTRONICS TECH CO LTD
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- Description
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- Application Information
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Problems solved by technology
Zinc oxide arresters are susceptible to moisture, aging, high failure rate, and difficult to repair and maintain; protective gap arresters cannot extinguish the arc after lightning protection action, and cannot effectively solve the tripping and disconnection accidents caused by lightning strikes; new multi-gap arresters mostly use a single Metal spherical electrode, the metal spherical electrode is buried in the insulating material to form multiple discharge gaps and arc extinguishing chambers to form an arc extinguishing and lightning protection device
The structure is complex, the production is difficult, the gap between the electrodes is poor in consistency, the power frequency discharge and the impact discharge are unstable, and the short circuit between the metal electrodes is caused by the repeated ablation of the power frequency arc and the change of easy melting.
Method used
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Embodiment Construction
[0037] Below in conjunction with accompanying drawing and embodiment describe in detail:
[0038] 1. The structure of double hemispherical T-shaped ceramic discharge tube 00
[0039] 1. Overall
[0040] Such as figure 1 , the double hemispherical T-shaped ceramic discharge tube 00 includes a T-shaped ceramic tube 01, a graphite hemispherical electrode 02 and a metal hemispherical electrode 03;
[0041] A graphite hemispherical electrode 02 and a metal hemispherical electrode 03 are respectively arranged in the upper and lower cavities of the T-shaped ceramic tube 01 .
[0042] 2. Functional components
[0043] 1) T-shaped ceramic tube 01
[0044] The T-shaped ceramic tube 01 includes two hemispherical cavities 011 and a hollow cylinder 012 communicating with the right and the left.
[0045] The diameter of the hemispherical cavity 011 is 15-19mm, and the thickness is 9-13mm;
[0046] The inner and outer diameters of the hollow cylinder 012 are 2.4-5mm and 5.6-9mm respect...
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Abstract
The invention discloses a double hemisphere T-shaped ceramic discharge tube, which relates to the functional components of an arc extinguishing and lightning protection device. The invention comprisesa T-shaped ceramic tube (01), a graphite hemisphere electrode (02) and a metal hemisphere electrode (03). A graphite hemisphere electrode (02) and a metal hemisphere electrode (03) are respectively arranged in the upper and lower cavities of the T-shaped ceramic tube (01). The T-shaped ceramic tube (01) comprises a hollow cylinder (012) and a hemispherical cavity (011) communicated with each other. As that lightning current is elongate, elongated and eject, the arc is extinguished, the lightning surge resistance is strong, the through current capacity is large, and the safety is high; Discharge gap size consistency is good, impulse discharge, power frequency discharge is stable; The utility model has the advantages of simple structure, high reliability and easy mass production.
Description
technical field [0001] The invention relates to functional components of an arc extinguishing and lightning protection device, in particular to a double hemispherical T-shaped ceramic discharge tube. Background technique [0002] Lightning is an important factor affecting the safety of transmission lines. It has long occupied the first place in line fault tripping. It is a natural process of atmospheric activity and has not been controlled so far. Lightning strikes will cause overvoltage, which may cause damage to insulators and transmission lines; cause flashover discharge of insulators. In this regard, the power sector generally adopts the installation of line lightning arresters on overhead lines to achieve protection. At present, the line arresters used on overhead lines mainly include: zinc oxide arresters, protection gap arresters and new multi-gap arresters. Zinc oxide arresters are susceptible to moisture, aging, high failure rate, and difficult to repair and maint...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01T1/08H01T4/02H01T4/10H01T4/16H01T1/22H01T1/24
CPCH01T1/08H01T1/22H01T1/24H01T4/02H01T4/10H01T4/16
Inventor 王草常立
Owner WUHAN WEICHUANGYUAN ELECTRONICS TECH CO LTD