Apparatus and method for monitoring temperature of cable joint of cable connected to gas insulated switchgear

A gas-insulated switch and cable joint technology, which is applied in the field of temperature devices, can solve the problem of no redundant temperature sensor installation, etc., and achieve the effect of easy installation and maintenance, convenient and accurate determination

Active Publication Date: 2020-08-28
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the difficulty in monitoring the temperature of the cable joint is that the cables used in GIS are fully insulated cables and there is no extra space for installing the temperature sensor to the cable joint

Method used

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  • Apparatus and method for monitoring temperature of cable joint of cable connected to gas insulated switchgear
  • Apparatus and method for monitoring temperature of cable joint of cable connected to gas insulated switchgear
  • Apparatus and method for monitoring temperature of cable joint of cable connected to gas insulated switchgear

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Embodiment Construction

[0036] The principles of the present disclosure will now be described with reference to several example embodiments shown in the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the embodiments are described only to help those skilled in the art to better understand and implement the present disclosure, and not to limit the scope of the present disclosure in any way .

[0037] As mentioned above, the difficulty in monitoring the temperature of the cable joint is that the cables used in the GIS are fully insulated cables and there is no extra space for installing any temperature sensors to the cable joints. According to an embodiment of the present disclosure, the temperature sensor is arranged in an adapter coupled to the cable socket of the switchgear, and the temperature of the cable joint may be determined based on the temperature of the adapter.

[0038] As will be described in detail in the followin...

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Abstract

An apparatus and a method for monitoring a temperature of a cable joint (201) of a cable (200) connected to a gas insulated switchgear (300). The apparatus comprises an adaptor (101) adapted to be coupled to a cable socket (31) of the switchgear, the cable socket being provided with a mounting hole (311) for connecting the cable joint, the mounting hole being provided at a mounting surface (312),wherein the adaptor, when coupled to the cable socket, is situated at the mounting surface and outside the mounting hole; a temperature sensor (102) arranged in the adaptor and configured to detect atemperature of the adaptor; and a processor (103) configured to determine the temperature of the cable joint based on the detected temperature of the adaptor. Then the temperature of the cable joint may be determined conveniently and precisely.

Description

Technical field [0001] The embodiments of the present disclosure generally relate to the field of electrical equipment, and more particularly to an apparatus and method for monitoring the temperature of a cable joint of a cable connected to a gas insulated switchgear (GIS). Background technique [0002] GIS is widely used in high-voltage power distribution applications. In use, the cable is usually connected to the GIS through a cable joint in order to transmit power to the GIS. If the connection between the cable connector and the GIS is poor, a large contact resistance may appear at the cable connector. Therefore, when current flows in the cable, the temperature of the cable joint may increase significantly. Currently, the demand for monitoring the temperature of cable joints is gradually increasing. However, the difficulty in monitoring the temperature of the cable joint is that the cable used in the GIS is a fully insulated cable and there is no extra space for installing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K1/02
CPCG01K1/14H02B13/0358G01K13/00
Inventor 张欣庄根煌
Owner ABB (SCHWEIZ) AG
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