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

A high-voltage contact, sensing system technology, applied in the direction of thermometers, thermometers, measuring devices, etc. with physical/chemical changes, can solve the problems of difficult design of temperature sensing systems, achieve good wind resistance, ensure safe operation, improve The effect of reliability

Inactive Publication Date: 2014-07-02
保定市五星光纤传感技术有限公司
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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

Method used

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

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Embodiment Construction

[0017] see Figure 1 ~ Figure 4 , the present invention consists of an optical fiber type rotating reflective temperature measurement module 1, a high-voltage isolation string, and a flange plate 6. The temperature measurement module 1 is a high-voltage temperature measurement sensor module produced and sold by Baoding Wuxing Optical Fiber Sensing Technology Co., Ltd. - Stable electrical performance, with very small temperature drift, suitable for use in outdoor environments with large temperature differences; the upper section of the high-voltage isolation string is composed of a ∮30*3 glass fiber tube 4 with a length of 1.5m and an insulating disc 3 made of organic composite silicon material, The optical fiber 5 passes through the tube, and both ends are blocked by plugs 2. In a dry environment, both ends are sealed with vacuum mud and liquid silicone rubber to ensure long-term drying in the tube and stable dielectric strength of the optical fiber in the tube. The outer diam...

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Abstract

A fiber-optic temperature sensing system suitable for outdoor high-voltage contacts, which includes a fiber-optic rotating reflective temperature measurement module and a high-voltage isolation string. The high-voltage isolation string consists of a glass fiber tube with plugs at both ends and a coaxial sleeve It is composed of a plurality of insulating disks outside the glass fiber tube, and one end of the glass fiber tube is fixedly connected to the metal frame of the power station through a flange; The plugs passing through the glass fiber tube and its two ends are connected with the photoelectric converter of the temperature monitoring instrument. The invention has good wind resistance, rain resistance, snow resistance, frost resistance and ice resistance, can operate safely and stably under various harsh natural conditions, effectively improves the reliability of the monitoring system, and ensures the safe operation of the power system .

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32
Inventor 李文田张来保张海珍宋雪明王俊杰
Owner 保定市五星光纤传感技术有限公司
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