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Anti-explosion multiple-winding integrated water route TCR (temperature coefficient of resistance) water-cooling electric reactor

A water-cooled reactor and multi-winding technology, which is applied in the direction of transformer/inductor core, transformer/inductor coil/winding/connection, inductor with magnetic core, etc., can solve the problem of temperature rise and large water resistance affecting the reactor , unable to meet the on-site working conditions and other problems, to achieve the effect of reducing cost and volume

Inactive Publication Date: 2013-11-06
SHANGHAI EAGTOP ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the reactor is used in the explosion-proof cabinet, the volume and temperature rise are very strict. It is traditionally composed of two three-phase three-column water-cooled reactors. Not only the water resistance of the reactor series water circuit is large, but also the 3rd harmonic flux leakage will be serious. Affect the temperature rise of the reactor
The cost and size of the reactor are very large, which cannot meet the working conditions of the site

Method used

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  • Anti-explosion multiple-winding integrated water route TCR (temperature coefficient of resistance) water-cooling electric reactor
  • Anti-explosion multiple-winding integrated water route TCR (temperature coefficient of resistance) water-cooling electric reactor
  • Anti-explosion multiple-winding integrated water route TCR (temperature coefficient of resistance) water-cooling electric reactor

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Embodiment

[0027] like figure 1 As shown, it is a schematic structural diagram of an explosion-proof multi-winding integrated waterway TCR type water-cooled reactor. The explosion-proof multi-winding integrated waterway TCR type water-cooled reactor includes a bracket 1, and five iron core columns 5 are arranged on the bracket 1. A lower coil 2 and an upper coil 4 located on the lower coil 2 are wound around the outer sides of the three middle iron core columns 5 . Because the third zero-sequence harmonic component of the TCR circuit is very large, the main magnetic path cannot be formed with the traditional 3-column iron core reactor, and the magnetic flux leakage is very large, which causes local overheating of the reactor clamp 1 or the surrounding metal parts. Therefore, five iron core columns 5 are used to allow the magnetic flux generated by the third harmonic to form a magnetic path in the main iron core.

[0028] In order to overcome the shortcomings of the traditional water-co...

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Abstract

The invention provides an anti-explosion multiple-winding integrated water route TCR (temperature coefficient of resistance) water-cooling electric reactor which is characterized by comprising a support, wherein five core limbs are arranged on the support, a lower coil and an upper coil are twined on the external sides of the middle three core limbs, and the upper coil is positioned above the lower coil. As the component of three zero sequence subharmonic waves of the TCR circuit is great, a traditional 3-core-limb electric reactor can not form a main magnetic passage, and great flux leakage can easily cause the problem that an electric reactor clamp or a surrounding metal piece is overheated in a local part. The anti-explosion multiple-winding integrated water route TCR water-cooling electric reactor adopting the five core limbs enables the magnetic flux generated by the three subharmonic waves to form a magetic passage in a main iron core, and the problem is effectively solved.

Description

technical field [0001] The invention relates to a water-cooled reactor, in particular to a TCR type water-cooled reactor in an explosion-proof frequency converter. Background technique [0002] With the continuous improvement of my country's coal mine production automation, mine explosion-proof frequency converters have been widely used in coal mines. In order to meet the reactive power requirements of the grid, a TCR will be connected in parallel between the grid and the inverter. TCR is the most widely used static var compensation device at present. It has fast response, frequent action, phase separation compensation ability, can effectively suppress voltage fluctuation and distortion caused by nonlinear load, and play a role in improving power quality. like image 3 Shown is the single-phase basic structure diagram of TCR, which is composed of two anti-parallel thyristors T1, T2 and two reactors L1, L2 connected in series. TCR itself is also a harmonic source, and it wi...

Claims

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Application Information

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IPC IPC(8): H01F17/04H01F27/24H01F27/30H01F27/16H01F27/32
Inventor 洪英杰
Owner SHANGHAI EAGTOP ELECTRONICS TECH
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