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

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

Active Publication Date: 2022-03-15
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, device, storage medium and processor for calculating cable metal sheath temperature
  • Method, device, storage medium and processor for calculating cable metal sheath temperature
  • Method, device, storage medium and processor for calculating cable metal sheath temperature

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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 following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method, a device, a storage medium and a processor for calculating the temperature of a cable metal casing. Wherein, the method includes: collecting cable current and cable core conductivity; obtaining casing parameters of the metal casing, wherein the metal casing is set on the outside of the cable, and the casing parameters at least include: the magnetic permeability of the metal casing and the metal casing The width of the pipe slot; determine the temperature calculation formula of the metal casing based on the cable core conductivity, where the temperature calculation formula of the metal casing is used to represent the temperature value of the metal casing, which is related to the cable current, the magnetic permeability of the metal Calculation relationship of casing slit width; determine the temperature value of metal casing based on cable current, cable core conductivity, metal casing magnetic permeability, metal casing slit width and metal casing temperature calculation formula. The invention solves the technical problem that it is impossible to calculate the temperature of the cable through the wall metal casing.

Description

technical field [0001] The invention relates to the field of electric power transmission, in particular to a method, device, storage medium and processor for calculating the temperature of a metal sheath of a cable. Background technique [0002] When the power cable enters the interlayer of the substation and passes through the wall, metal sleeves are used due to waterproof requirements. When the single-core cable is covered with a metal sleeve, due to electromagnetic induction, eddy currents are formed in the metal sleeve, resulting in eddy current loss, which causes the metal sleeve to heat up. Since the cable outer sheath is in contact with the metal sleeve through the filler, the heat generated by the metal sleeve will be conducted to the cable outer sheath and the cable insulation layer, which will accelerate the aging of the cable outer sheath and insulation layer, and even damage the cable outer sheath in extreme cases. Sheath and insulation layer, causing cable fail...

Claims

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Application Information

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Patent Type & Authority Patents(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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