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A vfto suppression device and gis equipment

A suppression device and conductive rod technology, which is applied to circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve the problems of conductive rods and resistance processing, complex assembly, etc., to achieve Simple structure, wide matching requirements, and the effect of reducing traveling wave current

Active Publication Date: 2021-04-30
PINGGAO GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The purpose of the present invention is to provide a VFTO suppression device, which can solve the problem of complex processing and assembly of conductive rods and resistors in the prior art; another purpose of the present invention is to provide a GIS equipment using the VFTO suppression device, which can suppress VFTO for increased safety

Method used

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  • A vfto suppression device and gis equipment
  • A vfto suppression device and gis equipment
  • A vfto suppression device and gis equipment

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Embodiment Construction

[0052] The specific embodiment of the VFTO suppression device and GIS equipment in the present invention will now be described in conjunction with the accompanying drawings, as figure 2 As shown, it is Embodiment 1 of the VFTO suppression device in the present invention: the VFTO suppression device includes two conductive rods 201 arranged at intervals along its axial direction, and the conductive rods 201 are connected in the circuit and can play the role of conducting the circuit. A plurality of branch conductors 205 arranged in parallel are provided between the two conductive rods 201 , and the branch conductors 205 are respectively connected between the two conductive rods 201 , forming a structure arranged in parallel between the conductive rods 201 . The branch conductors 205 can shunt the current passing through the conductive rod 201 , and the outer peripheral surface of each branch conductor 205 is covered with a magnetic ring string 202 , and the outer peripheral sur...

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Abstract

The invention relates to the technical field of electric power equipment, and specifically provides a VFTO suppression device and GIS equipment using the VFTO suppression device. The VFTO suppression device includes a conductive rod, the outer peripheral surface of the conductive rod is covered with a magnetic ring string group, the outer peripheral surface of the magnetic ring string group is covered with a resistance cylinder, and the two ends of the resistance cylinder are respectively provided with a The extension part of the conductive rod that exceeds the magnetic ring string in the length direction, an annular space is formed between the extended part and the conductive rod, and the top wire that fixes the resistance cylinder on the conductive rod is threaded on the extended part. The wire passes through the annular space and contacts the conductive rod to realize the conduction between the resistance cylinder and the conductive rod, and the top wire is made of conductive material. The VFTO suppressing device of the present invention can solve the problem of complex processing and assembling of the conductive rod and the resistor in the prior art.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a VFTO suppression device and GIS equipment. Background technique [0002] Every operation of the disconnector in the gas-insulated metal-enclosed switchgear (GIS) has dozens or even hundreds of re-ignitions, the voltage at both ends of the contact gap suddenly drops within a few ns, and the voltage steep wave in the GIS Traveling waves are continuously generated, complex refraction, reflection and superposition occur, and ultra-fast transient overvoltage (hereinafter referred to as VFTO) is generated. VFTO is a special overvoltage, which has three main characteristics: first, the frequency bandwidth (from zero to hundreds of MHz); second, the steepness (the rise time can be as low as several ns); third, the amplitude is high (can be up to 3p.u.). [0003] VFTO has an important impact on the safe operation of GIS equipment, external connection equipment and secondary eq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/22H02H9/04
Inventor 裴涛金光耀郭煜敬柏长宇姚永其叶三排李丽娜王志刚庞福滨
Owner PINGGAO GRP
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