Set of high-voltage cables and method for producing a set of high-voltage cables
A technology for high-voltage cables and accessories, which is applied in the direction of cable accessories, cable installation, equipment for connecting/terminating cables, etc., and can solve problems such as limited use range and faults
Active Publication Date: 2018-01-19
IPH高能电工测试研究所有限公司 +1
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Problems solved by technology
Because of their ability to migrate at room temperature or even at low temperatures, the range of use of such FOFs is limited
In addition to this, those skilled in the art consider the introduction of organic dyes into insulators of high voltage accessories to be dangerous, as they act as contaminants, which can easily polarize the electrodes, and thus can act as nuclei for tree growth, which can eventually lead to failure
Method used
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Embodiment Construction
[0063] figure 1 A schematic central cross-sectional view of a high voltage accessory 100 for accommodating a high voltage cable 1 according to an exemplary embodiment along the cylinder axis of the high voltage cable 1 is shown. A rotationally symmetrical high voltage cable 1 contains internally a conductor 11 for conducting electrical current, for example an aluminum or copper conductor, surrounded by a cable insulation 12 [typically an XLPE insulation (cross-linked polyethylene)] and an outer cable sheath 13 (e.g. an outer Conductive layer or semi-conductive outer cable sheath) surrounded. Furthermore, the high-voltage cable 1 can also have a backing and a copper sheath as well as an outer sheath for protection against environmental influences. This can be polyethylene cladding or cladding of another halogen-free material. For clarity, these components are in the figure 1 and not shown in the following figures. Furthermore, the high voltage cable 1 may have an inner cond...
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Abstract
A high-voltage device (100-700) for receiving a high-voltage cable (1, 22) having a conductor (11, 112) designed to conduct an electrical current and a cable insulation (12, 122) surrounding the conductor (11, 112), comprises an insulation (2-5) and a waveguide (51, 52). The insulation (2-5) comprises an at least partly transparent or translucent field control unit (2, 4) from a siloxane polymer which is designed to at least partly surround the cable insulation (12, 122) of the high-voltage cable (1, 22), the siloxane polymer comprising, in at least one portion (2a, 2b) of the field control unit, covalently bonded fluorophores and / or dielectric pigments. The waveguide (51, 52) is arranged such that a light signal caused by a partial discharge in the field control unit (2, 4) can be coupledfrom the field control unit (2, 4) into the waveguide (50).
Description
technical field [0001] The present invention relates to high voltage cable accessories, especially cable junction boxes and terminals, and related production methods. Background technique [0002] In electrical systems for power supply, faults recur due to damage effects on high-voltage accessories and aging phenomena of polymer insulation. These failures are mainly caused by partial discharge. However, such failures may also be caused or facilitated by installation errors, since, for example, tiny particles inadvertently introduced to the high voltage accessories during installation may cause extreme local field rises during operation. During a partial discharge, if the systems involved are not switched off in time, a so-called partial discharge tree forms in the insulating material, which grows over time and eventually leads to an electrical breakdown. Therefore, partial discharges in the insulation of cable accessories, such as terminals and cable junction boxes for pow...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02G15/02H02G15/04
CPCH01B3/46H02G15/02H02G15/046G01R31/1272H01B9/006H02G1/14H02G15/003H02G15/064H02G15/068H02G15/184
Inventor 杰德·海德曼艾尼拉·雷斯特纳尔安德雷·雷斯特纳尔丹尼尔·西伯勒菲利普·洛维特尔沃夫冈·海贝尔罗纳德·普拉斯
Owner IPH高能电工测试研究所有限公司