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Compound clearance surge protector

A surge protector and gap technology, applied in the field of overvoltage protection devices, can solve problems such as complex devices, and achieve the effects of low breakdown voltage and strong discharge capacity

Inactive Publication Date: 2009-01-14
CHANGZHOU CHUANGJIE LIGHTNING PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to ensure the breakdown of each gap, measures such as voltage equalization or triggering must be taken for each gap, which makes the whole device quite complicated.

Method used

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  • Compound clearance surge protector
  • Compound clearance surge protector
  • Compound clearance surge protector

Examples

Experimental program
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Embodiment Construction

[0020] Such as figure 1 The composite gap surge protector shown has a casing 1, a first electrode 2, a second electrode 3, a piezoresistor 4, and a discharger 5 for protection. Both ends of the discharger 5 are respectively connected to the first electrode 2 is connected to the second electrode 3.

[0021] Such as figure 2 The arrester 5 in the composite gap surge protector shown is composed of a long gap 6 and two short gaps 7, the long gap 6 is provided with two adjacent electrode pieces 8, and the adjacent two long gaps 6 A piezoresistor 4 is connected in parallel on the electrode piece 8, and a conductive grid piece 9 is provided in the long gap 6, and an insulating piece 10 for isolating the two conductive grid pieces 9 is provided between adjacent two conductive grid pieces 9 .

[0022] The parameter design of composite gap arrester of the present invention will satisfy four basic relations: A. the sum U of the breakdown voltage of all short gaps 7 bG1 It should be ...

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Abstract

The invention relates to a composite gap electric surge protector having a casing. A first electrode, a second electrode and a varistor are arranged in the casing. A discharger composed of a long gap and at least one short gap is also arranged in the casing. Two adjacent electrode slices parallelly connected with at least one varistor are arranged on the long gap. Conductive grid-plates are also arranged in the long gap. An insulating piece is arranged between two adjacent conductive grid-plates for isolating two conductive grid-plates. Two ends of the discharger (two electrode contracts) respectively connect with the first electrode and the second electrode (connection to the first electrode and the second electrode). The electric surge protector of the invention has strong discharge ability without follow current under the maximum working voltage of the device, low breakdown voltage and variation rate of the current and voltage when breakdown and conduction.

Description

technical field [0001] The invention relates to an overvoltage protection device, in particular to a composite gap surge protector with lightning protection. Background technique [0002] A lightning surge cannot be stopped because it contains too much energy, and it is for this reason that the strategy for protecting sensitive electrical equipment from damage from surges is to shunt the surge away from the equipment. In particular, the gas discharge tube and the air gap (spark gap) arrester in the surge protector have a large discharge capacity, but there are three main problems that restrict their popularization and application: one is the continuous current after the pulse discharge causes damage to The short circuit of the system voltage; the second is that there is a contradiction between reducing the breakdown voltage and improving the working reliability and life, because reducing the breakdown voltage requires reducing the gap length, which will reduce the reliabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04H02H9/06H01T1/00
Inventor 束静
Owner CHANGZHOU CHUANGJIE LIGHTNING PROTECTION
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