Deformation detection and comprehensive analysis system of transformer winding

Abstract

The invention discloses a deformation detection and comprehensive analysis system of a transformer winding. The deformation detection and comprehensive analysis system includes a winding deformation timing detector and a comprehensive analysis processing device. The winding deformation timing detector carries out timing detection of deformation of multiple transformer windings needing to be detected; the comprehensive analysis processing device is arranged in a host monitor chamber and is used to carry out comprehensive processing of detected data respectively by the multiple winding deformation timing detectors; frequencies of the multiple transformer windings by a wireless communication method is connected with the comprehensive analysis processing device; and the winding deformation timing detector includes an amplitude frequency response characteristic test circuit which is used to test an amplitude frequency response characteristic of each winding coil in a tested winding, a sine wave excitation source module which is connected with the amplitude frequency response characteristic test circuit, and a handheld deformation detection control meter which is connected with the amplitude frequency response characteristic test circuit. The deformation detection and comprehensive analysis system of the transformer winding is reasonable in design, convenient in connection, convenient in operation, high in intelligence degree, good in use effect, and capable of carrying out the comprehensive analysis of the test data of deformation of the multiple transformer windings.

Description

technical field [0001] The invention belongs to the technical field of transformer winding deformation detection, in particular to a transformer winding deformation detection and centralized analysis system. Background technique [0002] Transformer is one of the important equipment in the power system. Its operation stability has a great influence on the safe operation of the entire power system. Transformer accidents often bring huge economic losses and adverse social impacts to the power sector. In the actual operation process, when the transformer has an external short circuit, especially after a short circuit in the vicinity, the deformation test of the transformer winding can strengthen the supervision and monitoring of the transformer, which plays an irreplaceable role in other test items. In order to detect in time the power transformer with severe winding deformation but still running. At present, all countries in the world are actively carrying out transformer win...

AI Technical Summary

Problems solved by technology

In the actual use process, the coil will be deformed due to the occurrence of inter-turn or phase-to-phase short circuit, collision during transportation, short circuit and fault state during operation due to electromagnetic tension, etc.

However, in the actual operation process, due to the large number of transformers used in the power supply and distribution system, in order to ensure timely and accurate deformation testing, it is necessary to configure a transformer winding deformation tester for each transformer accordingly, and the investment cost is relatively large.

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