Composite potential clamp grading ring for electric reactor

Abstract

The invention relates to a voltage equalizing ring for compound potential clamping of a reactor. It includes a skeleton (1) formed by winding epoxy glass filaments, and a semiconductor layer (2) is arranged on the outer surface of the skeleton (1). The voltage equalizing ring of the invention is easy to process, simple and reliable in structure, and the wire winding is an insulating material, which belongs to the overall skeleton, and is much lighter than the aluminum voltage equalizing ring at the same voltage level; the semiconductor attachment material has magnetic resistance and conductivity, and is a conductive medium. When attaching semiconductor materials, the torus is segmented to avoid eddy current loss due to excessively large conductive surfaces. Using material properties, the shielding ring will not be disturbed by its magnetic flux leakage during the operation of the reactor, and will not generate additional heat sources, ensuring the overall performance of the reactor.

Description

technical field [0001] The invention relates to a compound potential clamp voltage equalizing ring for reactors, which is applied to various reactors, and focuses on improving the electrical performance of equipment, reducing the influence of magnetic flux leakage on losses, reducing overall temperature rise, and improving shielding capabilities. Background technique [0002] At present, the reactors are all made of aluminum voltage equalizing rings, which are processed by rolling, welding, correcting, polishing and other processes on the master model with aluminum plates. During the operation of the reactor, a large magnetic flux leakage will be generated. Due to its metal characteristics, the aluminum grading ring will generate heat on the surface under the influence of the magnetic flux leakage. As a result, the heat source inside the reactor is uncontrolled, which increases the temperature rise limit and affects the overall performance of the reactor. There are two main...

AI Technical Summary

Problems solved by technology

As a result, the internal heating source of the reactor is uncontrolled, which increases the temperature rise limit and affects the overall performance of the reactor.

There are two main disadvantages: 1) The closed structure increases the difficulty of manufacturing, the overall weight is high, and the auxiliary processing of metal molds is required, and the cost is high; 2) It will generate heat under magnetic flux leakage diffraction, resulting in additional loss and increased temperature rise

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