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VFTO suppression device and GIS equipment

A technology of suppressing device and conducting rod, which is applied in the setting of switchgear, switchgear, circuit device, etc., can solve the problems of loss and weakening of suppressing VFTO effect, etc. Effect

Inactive Publication Date: 2019-06-14
PINGGAO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The saturation effect of the magnetic ring will greatly weaken the effect of suppressing VFTO, and even lose the ability to suppress VFTO under large traveling wave currents. The biggest constraint for the magnetic ring to suppress VFTO is the effect of saturation, so now it is necessary to propose an economical, effective and reliable device To reduce the traveling wave current through the magnetic ring, so as to limit or even avoid the saturation effect of the magnetic ring, and ensure the reliability of the magnetic ring to suppress VFTO

Method used

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  • VFTO suppression device and GIS equipment
  • VFTO suppression device and GIS equipment
  • VFTO suppression device and GIS equipment

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Embodiment Construction

[0039] The specific implementation manners of the present invention will now be described in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, it is Embodiment 1 of the VFTO suppression device in the present invention: the VFTO suppression device includes a conductive rod forming the main body of the device, and the conductive rod is connected in the path to transmit current. The conductive rod includes two conductive rod main bodies 1, and the conductive rod main body 1 Arranged at intervals along the axial direction of the conductive rod. The radial dimension of the conductive rod main body 1 is relatively large, which can pass a large current at one time, and the conductive rod also includes a plurality of branch conductive rods 4 that are arranged between the two conductive rod main bodies 1 and are respectively connected with the two conductive rod main bodies 1. Each branch The conductive rods 4 are connected in parallel between the two condu...

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Abstract

The invention relates to the technical field of power equipment, and particularly provides a VFTO suppression device and GIS equipment using the VFTO suppression device. The VFTO suppression device comprises a conductive rod, wherein the conductive rod comprises conductive rod main bodies; the conductive rod main bodies are axially arranged at an interval; at least two branch conductive rods are connected in parallel between the conductive rod main bodies; and a magnet ring set is arranged on a periphery face of each branch conductive rod in a sleeving manner. The branch conductive rods are arranged between the conductive rod main bodies, so that the current passing through the conductive rod main bodies passes through the branch conductive rods, and the travelling wave current passing through the branch conductive rods is reduced; and the magnet ring sets are arranged on the branch conductive rods in the sleeving manner, so that the travelling wave current is low and magnet rings cannot reach saturation, thereby the magnet rings can stably suppress VFTO.

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 Applications(China)
IPC IPC(8): H02H9/04H02B13/035
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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