Dry iron core reactor
A technology of reactors and iron cores, applied in circuits, electrical components, transformer/inductor cores, etc., can solve the problems of dry-type iron core reactors such as weak short-circuit capability and high operating noise, so as to prevent relative rotation and improve Short-circuit withstand capability and noise reduction effect
Pending Publication Date: 2018-10-16
HENAN SENYUAN ELECTRIC CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a dry-type iron-core reactor to solve the problem that the dry-type iron-core reactor in the prior art tends to rotate relative to the upper and lower iron yokes and iron core columns during the assembly process, resulting in dry-type iron-core reactor The short-circuit resistance of the device is weak and the operation noise is large
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Embodiment Construction
[0017] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] A specific embodiment of the dry-type iron core reactor of the present invention, such as Figure 1 to Figure 4 As shown, the dry-type iron core reactor includes an iron core column and a coil 11 wound from the periphery of the iron core column. The iron core column includes a core column and an iron core cake. The outer side of the iron core cake is bound with a polyester tape 10 to ensure that the iron core Stability during pie pouring. The uppermost iron core cake 1 of the iron core column is connected with the upper iron yoke 3 through a fixed connection structure, and the lowermost iron core cake is connected with the lower iron yoke 14 through a fixed connection structure, so that the iron core column and the corresponding iron yoke will not be opposite to each other. turn. Compared with the existing technology, the upper and lower ends of...
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The invention relates to a dry iron core reactor which includes a core limb and a coil wound around the outer circumference of the core limb. The upper end and the lower end of the core limb are correspondingly provided with an upper yoke and a lower yoke. At least one of the upper end and the lower end of the core limb is fixedly connected with the corresponding yoke through a fixed connection structure. Compared with the prior art, the at least one of the upper end and the lower end of the core limb is fixedly connected with the corresponding yoke through a fixing plate and a cross-core fastener, to protect the core limb and the corresponding yoke from relative rotation, the short circuit bearing capacity of the dry iron core reactor is improved, and the noise is reduced.
Description
technical field [0001] The invention relates to a dry-type iron core reactor. Background technique [0002] Reactor is an important power equipment, which plays the role of limiting closing inrush current, limiting short-circuit current, filtering, smoothing, lightning protection and wave blocking in power system. Series reactors are widely used in power systems, and dry-type iron core reactors are a type of series reactors. For example, the Chinese patent with the authorized announcement number CN203503428U and the authorized announcement date of 2014.03.26 discloses an epoxy cast dry-type core reactor with a rectangular iron core. The dry-type iron-core reactor includes upper and lower iron yokes, iron core columns And the coil wound on the outer periphery of the iron core column, the upper and lower iron yokes are clamped on the iron core column through the tie rod. The above-mentioned dry-type iron core reactor connects the upper and lower iron yokes to the iron core c...
Claims
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IPC IPC(8): H01F27/26
CPCH01F27/263Y02E40/30
Inventor 刘方华苗朝阳
Owner HENAN SENYUAN ELECTRIC CO LTD