Casting type split reactor

A split reactor, casting technology, applied in the direction of transformer/inductor coil/winding/connection, etc., can solve the problems of general, insulating winding bubble insulation performance, etc., to improve mechanical performance, improve insulation performance, and avoid uneven thickness. Effect

Inactive Publication Date: 2014-10-29
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a casting type split reactor to solve the problems of air bubbles in the insulation winding of existing air-core reactors and general insulation performance

Method used

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  • Casting type split reactor
  • Casting type split reactor
  • Casting type split reactor

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Embodiment Construction

[0019] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 Shown is a schematic structural view of the casting type split reactor of the present invention. It can be seen from the figure that the coil of the reactor includes a first winding 1 and a second winding 2 coaxially arranged, and each envelope of the first winding is connected with each of the second winding. The envelopes are arranged in a cross-spaced manner from the inside to the outside, that is, the first, third, fifth and other odd-numbered envelopes belong to the first winding 1, and the second, fourth, and sixth, etc. even-numbered envelopes belong to the second winding 2. The winding of the two windings The direction of the current is the same, and the direction of the current is opposite. According to the right-hand rule of the magnetic flux, the magnetic flux generated after passing the current can cancel mo...

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Abstract

The invention discloses a casting type split reactor. A coil of the casting type split reactor comprises a first winding and a second winding which are arranged coaxially, and encapsulation parts of the first winding and encapsulation parts of the second winding are arranged alternatively from inside to outside in sequence. A first wire inlet bar and a second wire outlet bar are arranged at an interval radially and fixed at the upper end of the coil, and the other first wire inlet bar and a first wire outlet bar are arranged at an interval radially, connected with a current introducing end of the second winding in a conductive mode and fixed at the lower end of the coil. Each encapsulation part comprises a conductive part formed by winding a plurality of multi-layer round leads, and an insulation part formed by casting epoxy resin in a vacuum mode is arranged outside the conductive part. According to the casting type split reactor, the encapsulation parts are formed by casting epoxy resin in the vacuum mode through a casting mould, consistency of sizes of the insulation layers can be ensured, and uneven thicknesses of the insulation layers are avoided. In addition, no bubbles exist in the windings, partial discharge is reduced, occurrence of air gaps can be avoided effectively, and therefore, insulation performance of the insulation layers can be improved.

Description

technical field [0001] The invention belongs to the field of electrical technology, and in particular relates to a casting type split reactor. Background technique [0002] Reactors are also called inductors, which essentially provide inductance values ​​in electrical circuits. Current-limiting reactors are used to limit short-circuit currents. Since air-core reactors do not have core saturation problems and have good linearity, current-limiting reactors are generally used With a hollow structure. Split reactor is a kind of current-limiting reactor. It is a current-limiting reactor with one input terminal and two output terminals. Compared with the current-limiting reactor of ordinary single winding, it has normal The voltage loss is small during operation, and the short-circuit current resistance is large. [0003] At present, the conventional split reactor is a dry-type air-core reactor with upper and lower double winding structure, and the whole adopts resin insulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/29H01F27/30H01F27/32
Inventor 周金标杨建立赵峻盟毛爱明郝天瑞
Owner STATE GRID CORP OF CHINA
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