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Novel high voltage cable terminal and joint on-line monitoring device

A high-voltage cable and connector online technology, applied in the field of power cables, to achieve the effect of excellent sensitivity

Inactive Publication Date: 2016-06-22
JIANGSU ZHONGTIAN TECH CABLE ACCESSORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an on-line measurement device for measuring heat and noise changes at close range and with good measurement effect, which can accurately reflect the situation in cable operation

Method used

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  • Novel high voltage cable terminal and joint on-line monitoring device

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Embodiment Construction

[0010] The structure of the present invention is as figure 1 As shown, it includes a stress cone (1), a measuring sensor (2) and a transmission signal optical cable (3), wherein the cores of the measurement sensor (2) and the transmission signal optical cable (3) are embedded in the stress cone, and the measurement sensor (2) Connect to the signal terminal through the transmission signal optical cable (3).

[0011] When the stress cone is manufactured in the factory, the measuring sensor is pre-embedded inside the stress cone, and the stress cone is made of silicon rubber or EPDM bomb.

[0012] The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements can also be made, and these improvements should also be regarded as the present invention. scope of protection.

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Abstract

The invention discloses a novel high voltage cable terminal and joint on-line monitoring device. The novel high voltage cable terminal and joint on-line monitoring device includes a stress cone, a measurement sensor, and a transmission signal optical cable, wherein the measurement sensor and a core of the transmission signal optical cable is inlayed in the stress cone; and the measurement sensor is connected to the signal terminal through transmission signal optical cable. The sensor is inlayed in the stress cone in advance when the stress cone is produced in a factory. The stress cone is made of a silicone rubber or ethylene propylene diene monomer elastic rubber. The novel high voltage cable terminal and joint on-line monitoring device can measure the change of the heat and the noise at the stress cone position in the closest distance, and has excellent sensitivity, accuracy, reliability and anti-interference performance relative to other measure means. The cable on-line monitoring device solves the problem that the accurate on-line monitoring can not be performed.

Description

technical field [0001] The invention relates to the field of power cables, in particular to a novel online monitoring device for high-voltage cable terminals and joints. Background technique [0002] The existing on-line monitoring of cables uses the distributed optical brazing measurement method. This method is to bind the heat-sensitive light unit on the outer sheath of the cable to capture the signal and transmit it to the remote measurement. The noise (partial discharge) of the online measurement is caused by it. It meets the operation monitoring requirements of most cables, but because the measurement sensor is placed outside the outer sheath of the cable, the measured value is often extremely inaccurate and obviously cannot meet the online monitoring requirements; the online measurement noise (partial discharge) is on the cable joint shell and the cable terminal If the measurement sensor is installed near the tailpipe, it is difficult to obtain satisfactory results bec...

Claims

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Application Information

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IPC IPC(8): G01R31/12
CPCG01R31/1272
Inventor 刘慧民
Owner JIANGSU ZHONGTIAN TECH CABLE ACCESSORIES CO LTD