Transformer coil turn-to-turn short circuit intelligent tester

Abstract

The invention relates to an intelligent tester for a transformer coil turn-to-turn short circuit. The intelligent tester for the transformer coil turn-to-turn short circuit detects whether a short circuit occurs or not between shunt-wound adjacent turns in the winding process of a transformer coil. The tester comprises a control module, a routing inspection module, a sound-light alarm module and a power supply module. The control module comprises a single chip microcomputer, the input end of the control module is connected with the power supply module, and the output end of the control module is connected with the sound-light alarm module; the routing inspection module comprises at least one relay control circuit connected with the output end of the single chip microcomputer, at least two terminal blocks used for having access to wire turns are arranged at the input end of the single chip microcomputer, and the other end of the relay control circuit is connected with a corresponding terminal block which is utilized to apply test voltage to a corresponding wire turn. A wire turn-to-turn short circuit fault can be timely detected in the winding process, the position of a short-circuit wire turn is displayed in a sound-light alarm mode, the wire tune is timely replaced once a problem is found, thus cost of manpower and material resources is saved, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of short-circuit detection, in particular to an intelligent transformer coil inter-turn short-circuit tester for detecting whether a short-circuit occurs between parallel adjacent turns during the winding process of a transformer coil. Background technique [0002] Transformer coil processing is one of the most important links in the manufacturing process of power transformers. During the coil winding process, the protection and inspection of the outer insulation of the turns is very critical. Timely detection of damage to the outer insulation of the turns can effectively Improve work efficiency and ensure the control of transformer production quality. [0003] At present, there is no equipment on the market that can detect short-circuits between turns due to insulation damage during the winding process of transformer coils. The detection of short-circuits between turns of coils can only be performed when the short-ci...

AI Technical Summary

Problems solved by technology

[0003] At present, there is no equipment on the market that can detect short-circuits between turns due to insulation damage during the winding process of transformer coils. The detection of short-circuits between turns of coils can only be performed when the short-circuit test is performed after the production and assembly of the transformer is completed. detected, even minor short-circuit faults cannot be detected

After the inter-turn short circuit is found, the transformer needs to be hoisted, dismantled, and coiled again, which is time-consuming and laborious, greatly reducing production efficiency and increasing production costs; undiscovered short-circuit faults may affect the operating life of the transformer and the safety of power supply

[0004] In addition, the coil winding is carried out on the mold platform with lifting function. Now there is a short-circuit detection device that is fixed at the beginning position of the wire turn. As the winding process progresses, the short-circuit detection device descends with the coil mold. Alarm, but it is inconvenient for the operator to observe the specific turn position where the short circuit occurs

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