Iron core electric reactor

Abstract

The invention discloses an iron core electric reactor. The iron core electric reactor comprises: an upper iron yoke and a lower iron yoke; at least one magnetic core column arranged between the upperiron yoke and the lower iron yoke; and at least one coil connected to the surface of the magnetic core columns in a sleeving manner, wherein the two magnetic core columns are arranged at the two endsof the lower iron yoke respectively, and each magnetic core column comprises at least two magnetic core pieces, and air gap sheets arranged between every two adjacent magnetic chips. The structure issimple, parts are convenient to assemble, replace and maintain, noise and vibration at an air gap can be well reduced, and then the overall noise and vibration of a product can be greatly reduced; andmeanwhile, the eddy current loss can be reduced, the direct current superposition characteristic can be improved, the defects caused when the multi-element composite magnetic particles are subjectedto pressure forming can be effectively overcome, the hysteresis loss can be reduced, and the iron core electric reactor has the beneficial effect of the wide market application value.

Description

technical field [0001] The invention relates to the technical field of electric appliances. More specifically, the present invention relates to an iron core reactor. Background technique [0002] A reactor is also called an inductor. When a conductor is energized, it will generate a magnetic field in a certain space it occupies, so all electric conductors that can carry current have inductance in the general sense. In the power system, the iron core reactor is used to compensate the capacitive current of the line, suppress the line voltage rise at the end of the long-distance transmission line, etc., which can effectively improve the power transmission quality of the power grid, and is an important primary equipment in the power grid system. [0003] The parallel resistance capacity of the magnetic core is generally large, and the common ones are 6000Kvar and 10000Kvar. When the iron core reactor product is actually running, the noise and vibration are relatively large. T...

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Problems solved by technology

The actual operation results show that the air gap block in the prior art has low strength itself, and there are many problems in the operation of the product: during the electrified operation of the product, the iron core column continues to vibrate for a long time, which makes the glass fiber cloth plate block deformed, and the air gap The height of the gap changes irregularly, making the product more noisy

In addition, the traditional air gap block is made of epoxy resin, etc. The contact surface between the air gap block and the iron core column is smooth and flat, and the elasticity is small, so it is very easy to be affected by the change of the magnetic field and eddy current during operation.

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