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Method and device for calculating temperature of cable metal sleeve, storage medium and processor

A metal sleeve and cable technology, which is applied to a method of calculating the temperature of the cable metal sleeve, storage media and processors, and the field of devices, which can solve the problem that the temperature of the cable through the wall metal sleeve cannot be calculated, etc.

Active Publication Date: 2020-08-11
STATE GRID BEIJING ELECTRIC POWER +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a method, device, storage medium and processor for calculating the temperature of the metal sheath of a cable, so as to at least solve the technical problem that the temperature of the metal sheath of the cable passing through the wall cannot be calculated

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  • Method and device for calculating temperature of cable metal sleeve, storage medium and processor
  • Method and device for calculating temperature of cable metal sleeve, storage medium and processor
  • Method and device for calculating temperature of cable metal sleeve, storage medium and processor

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under ap...

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Abstract

The invention discloses a method and device for calculating the temperature of a cable metal sleeve, a storage medium and a processor. The method comprises the following steps: acquiring cable currentand cable core conductivity; obtaining sleeve parameters of the metal sleeve, wherein the metal sleeve is arranged on the outer side of the cable in a sleeving mode, and the sleeve parameters at least comprise magnetic conductivity of the metal sleeve and slotting width of the metal sleeve; determining a temperature calculation formula of the metal sleeve based on the cable core conductivity, wherein the temperature calculation formula of the metal sleeve is used for representing the calculation relation between the temperature value of the metal sleeve and the cable current, the magnetic conductivity of the metal sleeve and the slotting width of the metal sleeve; and determining the temperature value of the metal sleeve based on the cable current, the cable core conductivity, the magnetic conductivity of the metal sleeve, the slotting width of the metal sleeve and the temperature calculation formula of the metal sleeve. The technical problem that the temperature of the cable wall-penetrating metal sleeve cannot be calculated is solved.

Description

Technical field [0001] The present invention relates to the field of power transmission, in particular to a method, device, storage medium and processor for calculating the temperature of a cable metal sleeve. Background technique [0002] When the power cable enters the substation through the wall through the mezzanine, metal sleeves are used due to waterproof requirements. When a single-core cable is sheathed with a metal sleeve, due to electromagnetic induction, eddy currents are formed in the metal sleeve, resulting in eddy current loss, resulting in heating of the metal sleeve. Since the outer sheath of the cable is in contact with the metal sleeve through the filler, the heat generated by the metal sleeve will be conducted to the outer sheath and the insulation layer of the cable, accelerating the aging of the outer sheath and the insulation of the cable, and even damage the outer part of the cable in extreme cases. The protective layer and insulation layer may cause cable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/00G01R19/00G01R27/02G01R33/12G06F17/18
CPCG01K11/00G01R19/0092G01R27/02G01R33/1223G06F17/18
Inventor 王恩德田淑均仇天骄马学良郭晔侯赞王军詹花茂罗印
Owner STATE GRID BEIJING ELECTRIC POWER
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