Converging and supporting structure of dry electric reactor

Abstract

The invention relates to a converging and supporting structure of a dry electric reactor. The converging and supporting structure comprises busbars and a supporting frame. Each busbar comprises a vertical plate and connecting plates. The vertical plates are mounted at the bottom of an electric reactor body, every two connecting plates are symmetrically arranged at the two sides of the corresponding vertical plate, the busbars with the same structure are arranged on the upper portion and the lower portion of a dry electric reactor coil along the circumference of the coil in an arrayed mode, the connecting plates of the adjacent busbars are electrically connected in sequence, and a non-electric connecting position is reserved in the circumferential direction. A notch is formed in the upper portion of the supporting structure, the busbars mounted on the lower portion of the coil are mounted in the notch of the supporting structure, and the supporting structure corresponds to the busbars along the circumference array of the coil. Due to the fact that an outer converging structure is adopted, the limit of the dry electric reactor to temperature rise can be met well, the running safety of the dry electric reactor is guaranteed, the failure rate of the dry electric reactor is lowered, the earthquake-resistant capacity is high, and local overheating is avoided.

Description

technical field [0001] The invention relates to a reactor manufacturing technology, in particular to a confluence and support structure of a dry-type reactor. Background technique [0002] At present, the confluence structure of dry-type reactors mainly adopts two sets of Mi-shaped structures (the Mi-shaped structure is connected to one point at the center and eight line segments radiate to the surroundings, and the Mi-shaped structure is not limited to eight line segments), which are respectively installed in the reactor coil. The upper and lower ends are electrically connected to the coil. The total current flows in through a certain branch of the Pozi-like shape, and is shunted to each branch of the Pozi-like shape through the center of the Pozi-shaped structure. The center of the Pozi-like structure is also the position where the magnetic flux leakage is relatively concentrated. As a result, the P-shaped center is prone to local overheating, which cannot meet the require...

AI Technical Summary

Problems solved by technology

[0002] At present, the confluence structure of dry-type reactors mainly adopts two sets of Mi-shaped structures (the Mi-shaped structure is connected to one point at the center and eight line segments radiate to the surroundings, and the Mi-shaped structure is not limited to eight line segments), which are respectively installed in the reactor coil. The upper and lower ends are electrically connected to the coil. The total current flows in through a certain branch of the Pozi-like shape, and is shunted to each branch of the Pozi-like shape through the center of the Pozi-shaped structure. The center of the Pozi-like structure is also the position where the magnetic flux leakage is relatively concentrated. As a result, the Mi-shaped center is prone to local overheating, which cannot meet the requirements for safe and reliable operation of the product

[0003] The support of the existing dry-type reactor adopts a quadrilateral structure, which has poor stability and low strength. Moreover, due to the large loss caused by the AC leakage magnetic field in the support structure, the temperature rise is high, which easily leads to overheating of the support structure and seriously affects the reactance. safe operation

Images