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A method for predicting the mechanical strength of high-voltage cable ceramic protective layer

A high-voltage cable and mechanical strength technology, which is applied in the field of prediction of the mechanical strength of the ceramic protective layer of high-voltage cables, can solve problems such as insulation control electromechanical stress failure, and achieve an effect that is easy to judge and implement

Active Publication Date: 2021-07-13
沈阳凯鹏电线电缆制造有限公司
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Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a method for predicting the mechanical strength of the ceramic protective layer of high-voltage cables, which solves the problem of various electromechanical stress failures of insulation controls caused by changes in the environment and electrical load conditions

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  • A method for predicting the mechanical strength of high-voltage cable ceramic protective layer
  • A method for predicting the mechanical strength of high-voltage cable ceramic protective layer
  • A method for predicting the mechanical strength of high-voltage cable ceramic protective layer

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Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In this embodiment, the data of a high-voltage cable in an area with a large temperature difference and a long operating time is taken as an example to calculate the mechanical strength of the ceramic protective layer of the high-voltage cable and determine whether maintenance is required.

[0035] A method for predicting the mechanical strength of the ceramic protective layer of high-voltage cables, such as figure 1 shown, including the following steps:

[0036] Step 1: Collect environmental parameters and high-voltage cable parameters that affect the mechanical strength of the high-voltage cable ceramic protective layer;

[0037] Parameters to be collected inclu...

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Abstract

The invention provides a method for predicting the mechanical strength of a high-voltage cable ceramic protective layer, and relates to the technical field of power cable safety control. In this prediction method, the sub-indices of each influencing factor are calculated according to the environmental parameters of the area where the high-voltage cable is located and the parameters of the high-voltage cable itself, and the insulation loss index of the ceramic protective layer of the high-voltage cable is calculated according to these sub-indices, and then according to the insulation loss index, the The mechanical strength and loss percentage of the ceramic protective layer of high-voltage cables realize the prediction of the mechanical strength of the ceramic protective layer of high-voltage cables. The method for predicting the mechanical strength of the high-voltage cable ceramic protective layer provided by the present invention analyzes the influence of various factors on the mechanical strength, and determines which type of factor has a greater influence, avoiding the disadvantage of only replacing equipment without knowing the cause after a failure, and at the same time being able to effectively The mechanical strength of the high-voltage cable ceramic protective layer is predicted, which ensures the safe operation of the high-voltage cable.

Description

technical field [0001] The invention relates to the technical field of power cable safety control, in particular to a method for predicting the mechanical strength of a high-voltage cable ceramic protective layer. Background technique [0002] As a special insulation control, the ceramic protective layer of high-voltage cables plays an important role in overhead transmission lines. Theoretically, the insulation control should not fail due to various electromechanical stresses caused by changes in the environment and electrical load conditions, otherwise it will seriously damage the service life and operating life of the entire line. [0003] At present, the research on high-voltage cables is mainly focused on the fault detection and diagnosis of high-voltage cables: "On-line Monitoring and Fault Diagnosis Technology of High-voltage Power Cable Sheath Current" (High Voltage Technology, Issue 04, 2015) This technology detects faults early by monitoring the sheath current Pote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q10/00G06Q50/06
CPCG06Q10/06393G06Q10/20G06Q50/06
Inventor 李宝江李万利肖杨宋成伟
Owner 沈阳凯鹏电线电缆制造有限公司
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