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Impact of step voltage rise rate on accuracy of evaluating XLPE insulation DC voltage endurance coefficient
  • +5
  • Zhipeng Ma,
  • Ningyi Li,
  • Xingang Chen,
  • Shiyao Tan,
  • Jinjing Zhang,
  • Yijie Fan,
  • Xin Song,
  • Yuyang Huang
Zhipeng Ma
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Ningyi Li
School of Electrical and Electronic-Engineering, Chongqing University of Technology

Corresponding Author:1743544621@qq.com

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Xingang Chen
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Shiyao Tan
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Jinjing Zhang
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Yijie Fan
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Xin Song
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Yuyang Huang
School of Electrical and Electronic-Engineering, Chongqing University of Technology
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Abstract

The voltage endurance coefficient n of cross-linked polyethylene (XLPE) insulation is an important indicator for the analysis of insulation failure mechanism. Accurately obtaining the value of n can provide technical support for the reliability evaluation of cable operation. The constant stress method and the step stress method are used to obtain the values of n, but the test parameters can influence the accuracy of the obtained n values. Two methods for selecting test parameters are proposed. The equivalence between the two methods is established, providing theoretical support for the accurate evaluation of the n value of solid insulation materials by using the step stress method. The accuracy of the evaluation results is verified by analyzing the test data. The test results show that the nstep=13.04 evaluated by the step stress test with the proposed parameter selection method is consistent with the test result of constant stress nconstant=12.83.
02 Apr 2023Submitted to IET Generation, Transmission & Distribution
04 Apr 2023Submission Checks Completed
04 Apr 2023Assigned to Editor
10 Apr 2023Reviewer(s) Assigned
03 May 2023Review(s) Completed, Editorial Evaluation Pending
29 May 2023Editorial Decision: Revise Major
21 Jun 20231st Revision Received
13 Jul 2023Submission Checks Completed
13 Jul 2023Assigned to Editor
16 Jul 2023Reviewer(s) Assigned
01 Aug 2023Editorial Decision: Accept