Numerical control electromagnetic brake winding tension device for distribution transformer

Abstract

The invention discloses a numerical control electromagnetic brake winding tension device for a distribution transformer. The numerical control electromagnetic brake winding tension device comprises a controller, an enameled round wire tension mechanism, a paper-covered flat wire tension mechanism, an enameled wire guide mechanism, an enameled wire buffering mechanism and an outlet guide anti-twist scratch-resistant mechanism. The numerical control electromagnetic brake winding tension device for the distribution transformer is in high-low voltage integrated design, electromagnetic force is used for braking, brake force can be remotely regulated and controlled by a numerical control system, wires are tensioned by electromagnetic brake, enameled wires and paper-covered wires can be wound and tensioned by various wire gauges, tensile force can be remotely regulated and controlled, the brake force is stable, and the tension device has anti-damage, anti-loose and anti-twist functions for the wires. The tension device is convenient and simple to operate and safe to use, and overcomes the shortcomings that a pneumatic tension device is affected by an air source, and tensile force applied to the wires in unstable. The tension device is applicable to products such as S11 and S13 oil-immersed distribution transformers, an SH15 amorphous alloy distribution transformer, a dry transformer, a prefabricated substation and a combined transformer.

Description

technical field [0001] The invention relates to a digitally controlled electromagnetic brake winding tensioning device for S11, S13 and SH15 power distribution transformers. Background technique [0002] At present, the tensioning of transformer winding wires mostly adopts pneumatic tensioning device, which is generally composed of a cylinder and a tensioning mechanism. The cylinder controls the opening and closing of the tensioning mechanism by the direction of the air pressure provided by the outside, and the size of the compressed air controls the tension. . Under a certain air pressure, the static braking force of the tensioning mechanism on the conductor is greater than that of the dynamic one. The tension force of the conductor is relatively large at the moment of winding start, and becomes smaller after starting. The inertia of the winding causes the conductor to become fluffy and twisted when the winding brakes rapidly. Phenomena, it is difficult to adjust to a suit...

AI Technical Summary

Problems solved by technology

Under a certain air pressure, the static braking force of the tensioning mechanism on the conductor is greater than that of the dynamic one. The tension force of the conductor is relatively large at the moment of winding start, and becomes smaller after starting. The inertia of the winding causes the conductor to become fluffy and twisted when the winding brakes rapidly. Phenomena, it is difficult to adjust to a suitable and stable tension. In addition, the tension effect of the wire will be affected by the objective factors of unstable air pressure source and air leakage.

Frequent maintenance, energy consumption, high cost

Images