Distribution network transformer low-voltage winding deformation belt electric detection device and method

Abstract

The invention discloses a distribution network transformer low-voltage winding deformation belt electric detection device and method. The detection device comprises a signal generation unit, a signal injection unit, a signal obtaining unit, a signal conditioning unit and a signal collecting unit. The output end of the signal generating unit is divided into two paths to conduct output, one path of the output end is connected with the input end of the signal injection unit, and the other path of the output end is connected with the first input end of the signal collecting unit. The output end of the signal injection unit is connected with a low-voltage winding of a distribution network transformer to be tested through a high-voltage testing clamp. A neutral point of the distribution network transformer to be tested is connected with the input end of the signal obtaining unit, the output end of the signal obtaining unit is connected with the input end of the signal conditioning unit, and the output end of the signal conditioning unit is connected with the second input end of the signal collecting unit. The distribution network transformer low-voltage winding deformation belt electric detection device is small in size, convenient to carry and easy to operate, and under the premise that primary wiring of the transformer is not changed, electrified detection can be conducted on deformation of windings of multiple transformers through one device.

Description

technical field [0001] The invention relates to a method and a detection device for live detection of deformation of a low-voltage winding of a distribution network transformer, belonging to the technical field of transformer detection. Background technique [0002] Smart grid is a new type of grid formed by highly integrating information technology, communication technology, computer technology and original power transmission and distribution infrastructure. It has the functions of improving energy efficiency, reducing environmental impact, and improving power supply security and reliability. Therefore, building a strong and unified smart grid is the development direction of my country's future power grid. Intelligence is mainly reflected in: observable—measurement and sensing technology; controllable—controlling observation status; embedded autonomous processing technology; real-time analysis—upgrading from data to information; self-adaptation; self-healing, etc. aspect. ...

AI Technical Summary

Problems solved by technology

[0008] Most of the above three detection methods for transformer winding deformation are off-line detection methods, which cannot monitor the deformation of transformer windings in time, and cannot monitor the real-time operation status of transformers.

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