Supporting device for secondary coil of dry type hollow filter reactor

Abstract

The invention relates to a supporting device for a secondary coil of a dry type hollow filter reactor, which supports stably and overcomes the defects in the prior art that the secondary coil utilizes a pulling strip as a supporting device and is easy to drop. The supporting device comprises upper and lower groups of planetary frame arms and a main coil is arranged between the two planetary frame arms; the supporting device is characterized in that a plurality of supporting plates are clamped and fixed on the planetary frame arm at the lower side; the supporting plates are arranged in a centrally-symmetric manner; a plurality of concave coil grooves which are matched with the secondary coil in appearance are arranged on the side faces of the supporting plates; sealing plates are fixed on the side faces of the supporting plates; and the coil grooves are covered by the sealing plates. The secondary coil is supported by the supporting plates with the coil grooves and the supporting is stable; the coil grooves can separate wire turns of the secondary coil so as to prevent an inter-turn short circuit phenomenon; and the supporting plates have a simple structure, the production process is simple, the production efficiency can be improved, the production period is shortened, the production cost is saved and the installation and the use are convenient.

Description

technical field [0001] The invention relates to a coil supporting device in a reactor, in particular to a supporting device for a secondary coil of a dry-type air-core filter reactor with stable support. Background technique [0002] The dry-type air-core filter reactor uses air as the magnetic medium, and the winding adopts a multi-encapsulation, multi-layer, small-section aluminum wire multi-branch parallel structure design, and adopts epoxy resin glass fiber reinforced winding and aluminum alloy star frame clamping, Epoxy fiberglass with tensioned construction. The filter reactor is connected in series with the shunt capacitor bank in the power system to make it resonate at a specified frequency point, filter out the specified high-order harmonics, and at the same time realize the reactive power compensation of the power system and limit the power loss of the capacitor bank when it is put into the grid. Inrush current. [0003] The traditional dry-type air-core filter r...

AI Technical Summary

Problems solved by technology

[0005] The invention solves the defect that the auxiliary coil in the prior art uses pull-out strips as the supporting device and is easy to fall off, and provides a dry-type air-core filter reactor auxiliary coil supporting device with stable support and reliable structure

[0006] The invention also solves the defect that the distance between turns of the secondary coil in the prior art is relatively close, and long-term operation of high-voltage products is likely to cause inter-turn short circuit, and provides a dry-type air-core filter reactor secondary coil Supporting device, which separates the secondary coil to prevent inter-turn short circuit

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