Adjustment method for balanced output of three-phase transformer

Abstract

The invention discloses an adjustment method for balanced output of a three-phase transformer. The adjustment method comprises the following steps of: (1) selecting an iron core which comprises a lower yoke, an upper yoke, an A-phase core column, a B-phase core column and a C-phase core column; (2) winding an A-phase coil on the A-phase core column, winding a B-phase coil on the B-phase core column and winding a C-phase coil on the C-phase core column; (3) by adopting B phase as reference, providing voltage stabilized by the B-phase coil by a voltage stabilizer; (4) respectively detecting voltages of the A-phase coil and the C-phase coil; (5) knocking the left end and the right end of the upper yoke by using a hammer so as to change the magnetic resistance between the left end and the right end of the upper yoke and the A-phase core column and the magnetic resistance between the left end and the right end of the upper yoke and the B-phase core column; and (6) after the output of the A phase and the output of the C phase are balanced, locking the upper end of the A-phase core column, the upper end of the B-phase core column and the upper end of the C-phase core column with the upper yoke. The adjustment method disclosed by the invention has the advantages that the purpose of balanced output with 0.5% errors can be realized, the operation is flexible, simple and convenient, the use performance of a product is guaranteed and convenience is brought for production operation.

Description

technical field [0001] The invention relates to the technology in the field of three-phase transformers, in particular to an installation and adjustment method for balanced output of three-phase transformers. Background technique [0002] A transformer is a device that transforms AC voltage, current, and impedance. When an AC current passes through the primary coil, an AC magnetic flux is generated in the iron core (or magnetic core), which induces a voltage (or current) in the secondary coil. With the continuous development of the transformer industry, more and more industries and enterprises use transformers, and more and more enterprises have entered the transformer industry. The transformer is composed of an iron core (or magnetic core) and a coil. The coil has two or two More than one winding, the winding connected to the power supply is called the primary coil, and the remaining windings are called the secondary coil. [0003] Three-phase transformers are widely used ...

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Problems solved by technology

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a method for installing and adjusting the balanced output of a three-phase transformer, which can effectively solve the problem that the output voltage of each phase of the existing three-phase transformer is prone to serious fluctuations. balance problem

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