Adjustable transformer

Abstract

The invention relates to an adjustable transformer, which comprises a housing and an annular core and further comprises a carbon brush and an adjusting device. According to the adjustable transformerof the invention, the adjusting device drives the carbon brush to rotate in the circumferential direction and adjusts the position of the brush head in the radial direction; the reciprocating frictionbetween the brush head and a winding of the annular core on the same circular trajectory is avoided so as to prevent the damage of the winding of the annular core; the moving direction of a sliding brush rod can also be switched so as to enable the brush head to have two moving modes such as expansion and relaxation in the radial direction, and the brush head is enabled to be continuously used; the moving speed of the brush head is very slow, so that it is unnecessary to manually change the moving direction of the sliding brush rod for many times; and the moving speed of the sliding brush rodcan also be adjusted.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an adjustable transformer. Background technique [0002] The functions of the voltage regulator and the transformer are similar, and they both perform voltage transformation. Unlike a transformer, the output voltage of a voltage regulator can be adjusted. In the rural power supply and distribution system, due to the long-distance power transmission, the voltage loss is serious, and the power supply terminal often cannot reach the predetermined voltage, so a voltage regulator is used for voltage stabilization. In the electrical test process, there are devices with different voltage levels in the power distribution station, so power supplies with different voltages are required to supply power to the devices, and voltage regulators can play an important role. [0003] In the above application process, although the output of the voltage regulator is from 0 to the maximum valu...

AI Technical Summary

Problems solved by technology

[0003] In the above application process, although the output of the voltage regulator is from 0 to the maximum value, the voltage output value applied in the actual process is only in a specific small range

And because the length of the carbon brush is fixed, the trajectory formed by the carbon brush during rotation is a circular trajectory with a fixed radius, so that the winding is constantly worn on the circular trajectory, and even burns out the equipment.

However, the windings are well maintained at other radius circle tracks and cannot be effectively utilized.

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