Method for measuring temperature of high-voltage/extra-high-voltage cable connector by using fiber

A cable joint and optical fiber measurement technology, which is applied to the real-time online monitoring of the working temperature of UHV cable joints, in the high-voltage field, can solve problems such as hidden dangers of insulation, difficulties in installation and maintenance of optical fibers, etc., achieve beautiful appearance, reduce the difficulty of fixing, and reduce installation costs the effect of time

Inactive Publication Date: 2015-10-14
西安和其光电科技股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The optical fiber transmission system has high insulation strength, strong anti-electromagnetic interference ability, corrosion resistance, small size and simple structure, and is especially suitable for tempe

Method used

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  • Method for measuring temperature of high-voltage/extra-high-voltage cable connector by using fiber
  • Method for measuring temperature of high-voltage/extra-high-voltage cable connector by using fiber
  • Method for measuring temperature of high-voltage/extra-high-voltage cable connector by using fiber

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Example Embodiment

[0011] Example: such as image 3 Shown is a method for measuring the temperature of high-voltage and ultra-high-voltage cable joints with optical fibers, which includes an external temperature-measuring optical fiber 1 , an internal temperature-measuring optical fiber 5 , a temperature-measuring probe fixing fixture 9 and a temperature demodulator 13 . like figure 1 , figure 2 , Figure 4 As shown, the internal temperature-measuring optical fiber 5 includes an adapter insert 6 , an internal optical fiber 7 and a temperature-measuring probe 8 connected in sequence. The surface of the connecting insert 6 is provided with an annular groove and a square flat body. The internal temperature-measuring optical fiber 5 is pre-embedded in the cable plug 12 by casting, and the annular groove and the square flat body prevent the connecting insert 6 from moving axially or radially. Use the temperature measuring probe fixing fixture 9 to fix the temperature measuring probe 8 on the plu...

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PUM

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Abstract

Provided is a method for measuring the temperature of a high-voltage/extra-high-voltage cable connector by using a fiber. The method is characterized by comprising an external temperature-measuring fiber 1, an internal temperature-measuring fiber 5, a temperature-measuring probe fixing clamp 9, and a temperature demodulator 13. The external temperature-measuring fiber 1 comprises a ST fiber connector 2, an external fiber 3, and an external fiber connector 4 which are successively connected. The internal temperature-measuring fiber 5 comprises an adapter embedded member 6, an internal fiber 7, and a temperature-measuring probe 8 which are successively connected. The temperature-measuring probe fixing clamp 9 fixes the temperature-measuring probe 8 to an end cap embedded member 11 by means of a screw 10. The internal temperature-measuring fiber 5 is connected with the external fiber connector 4 via the adapter embedded member 6. The external temperature-measuring fiber 1 is connected with the fiber interface 14 of the temperature demodulator 13 through the ST fiber connector 2. The method online monitors the operating temperature of a cable connector in real time.

Description

technical field [0001] The content of the present invention relates to real-time on-line monitoring of the working temperature of high-voltage and extra-high-voltage cable joints, in particular to a fusion method of optical fibers and insulating materials and a method for measuring the temperature of cable joints with optical fibers. Background technique [0002] In power transmission and distribution systems, high voltage transmission cables are widely used. Such cables are distributed in substations and transmission lines. Due to the influence of processing technology, construction quality, operating conditions and operating environment, the failure rate of cables and cable joints is high. The normal operation of the transmission cable is directly related to the normal operation of the transmission and distribution network. Since the cable joints of transmission and distribution lines are numerous and scattered, it is difficult to manually inspect them. Therefore, online ...

Claims

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Application Information

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IPC IPC(8): G01K11/32
Inventor 张文松
Owner 西安和其光电科技股份有限公司
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