Optical fiber type temperature sensing system suitable for outdoor high-voltage contact

Abstract

The invention relates to an optical fiber type temperature sensing system suitable for an outdoor high-voltage contact. The optical fiber type temperature sensing system comprises an optical fiber type rotary reflection-type temperature measurement module and a high-voltage isolating string, wherein the high-voltage isolating string is composed of a glass fiber pipe and a plurality of insulating discs, the glass fiber pipe is provided with screwed plugs on both ends, the plurality of insulating discs are coaxially sleeved on the outer part of the glass fiber pipe, and one end of the glass fiber pipe is fixedly connected with a metal framework of a power station through a flange; the optical fiber type rotary reflection-type temperature measurement module is fixed on a position near the high-voltage contact or a connection point, and signal optical fibers of the optical fiber type rotary reflection-type temperature measurement module pass through the glass fiber pipe and the screwed plugs positioned on both ends of the glass fiber pipe to be connected with a photoelectric converter of a temperature monitoring instrument. The invention has the advantages of good wind resisting capability, rain resisting capability, snow resisting capability and ice resisting capability and safe and stable operation under various severe natural conditions; in the invention, the reliability of a monitoring system is effectively enhanced, and the safe operation of an electric system is ensured.

Description

technical field [0001] The invention relates to a device for monitoring the working temperature of an outdoor high-voltage contact (contact), which belongs to the field of measurement technology. Background technique [0002] In power generation, transmission, transformation and distribution lines, there are a large number of contacts and wire connection points. If these contacts and contacts are defective, it may cause local overheating and damage equipment, and even cause large-scale power outages. The power sector and users have caused huge losses. On-line monitoring of the temperature of the high-voltage contacts (contacts) and timely grasp of the operating conditions of the contacts (contacts) are important technical measures to ensure the safe and reliable operation of the power system. For 110KV and above high-voltage equipment installed outdoors, most of its contacts (contacts) are exposed to the air. When using passive optical fiber sensors to monitor the temperatu...

AI Technical Summary

Problems solved by technology

For 110KV and above high-voltage equipment installed outdoors, most of its contacts (contacts) are exposed to the air. When using passive optical fiber sensors to monitor the temperature of contacts (contacts) online, in addition to requiring the sensor In addition to measurement accuracy and stability, the sensing system must also have good wind resistance, rain resistance, snow resistance, frost resistance and ice resistance, which brings certain difficulties to the design of the temperature sensing system

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