On-line detection device of metallic foreign bodies in transformer insulating cardboards

Abstract

The invention discloses an on-line detection device of metallic foreign bodies in transformer insulating cardboards. The device comprises a roller type conveying line, a motor, a foreign body detectorand a controller, wherein the roller type conveying line is connected with the motor; the foreign body detector is stretched across the upper surface of the roller type conveying line; the controlleris connected with both the roller type conveying line and the foreign body detector; the foreign body detector comprises an X-ray emitter and an X-ray receiver, and the X-ray emitter is relatively arranged above the X-ray receiver; the X-ray emitter is not in contact with the X-ray receiver; the controller comprises a data storage unit, a data comparison unit and a data output unit; and the datastorage unit, the data comparison unit and the data output unit are connected sequentially. The on-line detection device of the metallic foreign bodies in the insulating cardboards, provided by the invention, can realize continuous scanning for cardboard movement, can automatically detect abnormal cardboards, is accurate in positioning, and saves time and labor.

Description

technical field [0001] The invention relates to a detection device, in particular to an on-line detection device for metal foreign matter in a transformer insulation cardboard. Background technique [0002] With the continuous advancement of technology, the level of power transmission and transformation transformers has been continuously improved, and the testing requirements for transformer insulation materials have become more stringent. At present, the equipment for insulating cardboard detection has more advanced magnetic induction detection and X-ray scanning. Magnetic induction detection has poor sensitivity to non-magnetic induction materials such as stainless steel, copper, aluminum and other metals and non-metallic foreign objects, or even cannot be detected. The X-scan can detect metal foreign matter inside the transformer insulating cardboard and the air gap inside the cardboard. However, since this kind of equipment can only perform static scanning on the produc...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the inconvenient problem of X-ray scanning transformer insulation materials in the prior art, the present invention provides an online detection device for metal foreign matter in transformer insulation cardboard

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