Intelligent diagnosis device and method for transformer winding material

Abstract

The invention discloses an intelligent diagnosis device for a transformer winding material. The device comprises a PTC heating device, a temperature sensor, a collection device and a processor, wherein the PTC heating device is connected with the collection device through a relay; the PTC heating device is used for heating a starting end of a transformer phase joint conductive rod; the temperature sensor is used for collecting the temperature of the starting end of the transformer phase joint conductive rod; and the collection device is connected with the processor. The intelligent diagnosis device for the transformer winding material solves problems that the existing diagnosis device and method have slow diagnosis speed, complex diagnosis process and the like, the operations are simple, and the diagnosis speed is high; the device utilizes transformer material discrimination based on thermo-electric effect, thereby having simple operations without potential safety hazards. On the premise of not dismounting a transformer and breaking a winding, the device can simply and conveniently perform diagnosis; the use range is wide; the device can discriminate various transformer windings; and by aiming at different transformer phase joint, different sizes for heaters are designed, so that the intelligent diagnosis device can be used for discriminating the various transformer windings.

Description

technical field [0001] The invention relates to the field of transformer detection, in particular to an intelligent diagnosis device for transformer winding material. Background technique [0002] With the rapid development of the national economy, the demand for electricity is increasing, and the demand for power transformers is increasing. However, in recent years, the price of raw materials has risen, the price of copper wire has risen sharply, and the production cost of transformers has become higher and higher. However, the sales price of transformers cannot rise by the same rate due to market constraints. Therefore, in power transformers, especially 10kV distribution transformers, there has been a long-term phenomenon of using aluminum wires instead of copper wires. The transformers of some manufacturers are made of semi-aluminum. For example, the primary winding is aluminum and the secondary is copper, or the primary winding is copper and the secondary is aluminum. S...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose an intelligent diagnostic device for transformer winding materials; this device solves the problems of high cost, difficult operation, and potential safety hazards of existing methods such as destructive inspection and X-ray flaw detection, and adopts a diagnostic method based on thermoelectric effect , on the premise of not dismantling the transformer and not damaging the winding, the diagnosis of the transformer material is carried out

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