Dry-type reactor overheating fault early warning system based on distributed optical fiber sensing

Abstract

The invention provides a dry-type reactor overheating fault early warning system based on distributed optical fiber sensing, and belongs to the technical field of reactor overheating fault early warning systems. The invention comprises a reactor body, a distributed optical fiber temperature measuring device encapsulated outside the reactor body; a characteristic gas detection device arranged at the top of the reactor body, a wireless data acquisition device connected with the distributed optical fiber temperature measuring device and the characteristic gas detection device, a remote client connected with the wireless data acquisition device, and an alarm device connected with the remote client. According to the invention, the temperature of all points along the sensing optical fiber can becontinuously measured, the heating point of the reactor can be found in time by combining a characteristic gas measurement result, and an alarm can be given in time.

Description

technical field [0001] The invention belongs to the technical field of reactor overheating fault early warning system, and in particular relates to a dry-type reactor overheating fault early warning system based on distributed optical fiber sensing. Background technique [0002] Dry-type air-core reactor has the advantages of low loss, low noise, good linearity of reactance value, long design life, simple maintenance, etc., and is more and more widely used in power systems. In the system, the device mainly plays the roles of limiting closing inrush current, limiting short-circuit current, compensating stray capacitive current, and filtering. [0003] During the operation of the dry-type reactor, it is often due to the impurity in the coil wire, or the poor insulation of the latitude glass ribbon encapsulated with epoxy resin during the operation, etc., which will cause the reactor to generate partial damage during the operation. Excessive temperature rise and overheating wi...

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Problems solved by technology

The hot spot of the transformer winding is the highest point of the winding temperature during the operation of the transformer. If the hot spot temperature is too high, the insulation aging will be accelerated and the life of the transformer will be shortened. If the hot spot temperature is too low, the capacity of the transformer will not be fully utilized, which will affect economic benefits.

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