Quick detection apparatus of transformer secondary polarity

Abstract

The invention relates to the technical field of transformer polarity detection and relates to a quick detection apparatus of transformer secondary polarity, comprising a time controller, a polarity display unit, and an apparatus power source. The time controller includes a time relay and a relay power supply; the relay power supply is electrically connected with aa time relay coil; both the outputend of the apparatus power source and a first binding post of a normally on contact of the time relay are electrically connected with the primary side of a transformer under detection through wires;the input end of the apparatus power supply is electrically connected with a second binding post of the normally on contact of the time relay; the polarity display unit is electrically connected withthe secondary side of the transformer under detection. The quick detection apparatus of transformer secondary polarity is reasonable and compact in structure and convenient to use, and can automatically output pulse current; compared with traditional detection methods, the quick detection apparatus of transformer secondary polarity is simple to operate, provides visual displaying, enables testingto be finished by a single operator, and has the advantages of good safety, low manpower consumption, good simplicity, and high efficiency.

Description

technical field [0001] The invention relates to the technical field of transformer polarity detection, and relates to a rapid secondary polarity detection device of a transformer. Background technique [0002] Whether it is a conventional substation or a smart substation, transformer equipment plays an important role. In the electrical measurement and relay protection circuit, the function of voltage and current transformers is to supply the secondary voltage and current for measurement and relay protection. It can not only be used to isolate the primary equipment and the secondary side of the power system, but also It can also convert the primary side voltage and current into secondary voltage and current according to the transformation ratio of the transformer, which can be used by the secondary equipment in the station to realize the operation monitoring and protection function of the power system. Therefore, whether the wiring of each current and voltage secondary circu...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a rapid detection device for the secondary polarity of a transformer, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the existing measurement method requires at least two workers to cooperate at the same time, which is time-consuming and labor-intensive, and the construction efficiency is low , heavy workload and potential safety hazards

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