Parallel reactor iron yoke, manufacturing method and reactor
A manufacturing method and reactor technology, which are applied in the manufacture of inductance/transformer/magnet, transformer/inductor core, transformer/inductor coil/winding/connection, etc., can solve the problem of large induced potential of iron yoke and three-phase imbalance. , product damage and other problems, to achieve the effect of good mechanical strength, convenient manufacturing and installation, reasonable and simple structure
Pending Publication Date: 2022-07-15
BAODING TIANWEI BAOBIAN ELECTRICAL
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[0002]For the three-phase shunt reactors arranged in square shape, the iron yoke is generally rolled with electrical steel strips. Since the electrical steel strips are very thin, the entire The rolled iron yoke is equivalent to an inductance coil with thousands of turns. In the unbalanced three-phase operating condition, the zero-sequence magnetic flux passes through the iron yoke, and a large induced potential will be generated between the pieces of the iron yoke, resulting in product damage.
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[0022] The first aspect of the present invention discloses an iron yoke of a parallel reactor, specifically as follows figure 1 and 2 shown, including:
[0023] It includes: sector-shaped iron yoke laminations 1, epoxy insulating plates 2, and epoxy insulating tubes 3; the three epoxy insulating plates 2 are insulated and divided between the three sector-shaped iron yoke laminations 1, and the The three sector-shaped iron yoke laminations 1 form a ring, and the epoxy insulating tube 3 is integrally supported in the hollow part of the ring. The sector-shaped iron yoke lamination 1 , the epoxy insulating plate 2 and the epoxy insulating tube 3 are casted integrally using a vacuum epoxy casting process to form an epoxy casting layer 4 .
[0024] The second aspect of the present invention discloses a method for manufacturing an iron yoke of a parallel reactor, specifically as follows figure 1 shown, including:
[0025] The iron yoke that is usually rolled with electrical steel...
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The invention provides a paralleling reactor iron yoke, a manufacturing method and a reactor, and the paralleling reactor iron yoke comprises a fan-shaped iron yoke lamination, an epoxy insulating plate and an epoxy insulating tube. The three epoxy insulating plates are divided among the three fan-shaped iron yoke laminations in an insulating mode, the three fan-shaped iron yoke laminations form a circular ring, and the epoxy insulating tube is used for integrally supporting the hollow part of the circular ring. And the fan-shaped iron yoke laminations, the epoxy insulating plates and the epoxy insulating pipes are integrally poured and molded by using a vacuum epoxy pouring process to generate an epoxy pouring layer. According to the scheme, the structure is reasonable and simple, manufacturing and installation are convenient, the mechanical strength is good, and the problem that when the three-phase shunt reactors arranged in the shape of the Chinese character'pin 'operate in a three-phase imbalance mode, zero-sequence magnetic flux induces potential to cause iron yoke faults is solved.
Description
technical field [0001] The invention belongs to the technical field of reactors, and in particular relates to an iron yoke of a parallel reactor, a manufacturing method and a reactor. Background technique [0002] For a three-phase shunt reactor arranged in a pattern, the iron yoke is generally made of electrical steel strip. Because the electrical steel strip is very thin, the whole iron yoke rolled by the electrical steel strip is equivalent to an inductance coil of several thousand turns. In the three-phase unbalanced operating conditions, the zero-sequence magnetic flux passes through the iron yoke, and a large induced potential will be generated between the iron yoke sheets, causing damage to the product. Therefore, it is an urgent problem to eliminate the induced potential between the plates of the iron yoke and improve the operation reliability of the shunt reactor by technical means. SUMMARY OF THE INVENTION [0003] In order to solve the above technical problems,...
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IPC IPC(8): H01F27/24H01F27/32H01F27/26H01F41/02
CPCH01F27/24H01F27/324H01F27/266H01F41/0206
Inventor 龙腾张栋范洪涛丁会峰王劲波冯鹤超张永恒徐爽张海栓鲁建玺张伟高宁柴晓博田翔宇
Owner BAODING TIANWEI BAOBIAN ELECTRICAL