Transformer demagnetization analyzer

Abstract

The invention discloses a transformer demagnetization analyzer. The transformer demagnetization analyzer comprises a first direct-current residual magnetism analysis demagnetization output terminal, a second direct-current residual magnetism analysis demagnetization output terminal, a power supply direction switching module, a direct-current numerical control constant current source, a first optical isolator acquisition resistor Rb, a switch K1, a microprocessor, a reverse electromotive force protection module, a first program-controlled amplifier, a first A / D converter, a first optical isolator connection, a second program-controlled amplifier, a second A / D converter, a second optical isolator, an instruction input module, a display module, an alternating-current residual magnetism analysis output terminal, a voltage and current test module, an isolated boost transformer and an electric voltage regulator. The transformer demagnetization analyzer realizes the technical effects that the transformer demagnetization analyzer is capable of carrying out demagnetization and also can detect the residual magnetism amount of the transformer, the demagnetization effect is good, and the demagnetization efficiency is relatively high.

Description

technical field [0001] The invention relates to the field of transformer safety research, in particular to a transformer degaussing analyzer. Background technique [0002] Remanence is the surface field Br retained after the permanent magnet is magnetized to technical saturation and the external magnetic field is removed. KG is the electromagnetic unit system, read as kilogauss. Conversion relationship 1T=10000GS. The hysteresis loop is that in the magnetic field, the relationship between the magnetic induction intensity of the ferromagnet and the magnetic field intensity can be represented by a curve. When the magnetizing magnetic field changes periodically, the relationship between the magnetic induction intensity and the magnetic field intensity in the ferromagnet is a closed line, which is A closed line is called a hysteresis loop. [0003] Large-scale power transformers are an important part of the power grid and play an extremely important role in the safe operation...

AI Technical Summary

Problems solved by technology

[0008] The invention provides a transformer degaussing analyzer, which solves the problem that the existing transformer degaussing equipment can only degauss the transformer, but cannot detect the residual magnetism of the transformer, and it is easy to cause wrong judgment and operation. The technical problem of easily increasing the residual magnetism when it is small has realized the technical effect that the transformer degaussing analyzer can not only degauss, but also detect the residual magnetism of the transformer, the degaussing effect is better, and the degaussing efficiency is higher

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