[1]郭建钊.基于余弦方波的配电电缆绝缘多功能测试装置的研制[J].高压电器,2020,56(07):218-223.[doi:10.13296/j.1001-1609.hva.2020.07.032]
 GUO Jianzhao.Development of Multi-functional Insulation Testing Equipment for Distribution Power Cables Based on Cosine rectangular Wave[J].High Voltage Apparatus,2020,56(07):218-223.[doi:10.13296/j.1001-1609.hva.2020.07.032]
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基于余弦方波的配电电缆绝缘多功能测试装置的研制()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年07期
页码:
218-223
栏目:
技术讨论
出版日期:
2020-07-20

文章信息/Info

Title:
Development of Multi-functional Insulation Testing Equipment for Distribution Power Cables Based on Cosine rectangular Wave
作者:
郭建钊
(国网福建省电力有限公司泉州供电公司, 福建 泉州 362000)
Author(s):
GUO Jianzhao
(State Grid Fujian Electric Power Co., Ltd., Quanzhou Power Supply Company, Fujian Quanzhou 362000, China)
关键词:
电缆绝缘 超低频余弦方波 直流振荡波 局部放电
Keywords:
cable insulation VLF cosine rectangular wave DC oscillation wave partial discharge
DOI:
10.13296/j.1001-1609.hva.2020.07.032
摘要:
文中研制了一种兼具产生超低频余弦方波和振荡波的多功能高压发生装置,利用该装置既可以开展电缆绝缘的耐受电压能力测试,也可以开展局部放电检测。装置主要由快速充电单元、放电单元、高压电抗器以及局放检测单元组成。放电单元作为装置的核心单元,其实现采用了基于串联IGBT为核心的高压半导体开关,以满足系统最高30 kV峰值电压输出的需求。整套装置可以在余弦方波和直流振荡波两种模式下独立工作.在实验室中搭建系统平台,对中间接头处有缺陷电缆进行了局部放电检测。实验结果验证了多功能高压发生装置用于电缆绝缘测试的有效性。
Abstract:
This paper presents the development of a novel multi-functional high voltage testing equipment with the capability of generating both very low frequency (VLF) cosine rectangular wave (CRV) and oscillatory wave. The equipment consists of a fast charging unit, a discharging unit, high voltage reactor and partial discharge detection unit. As the core unit of the equipment, the discharging united based on insulated gate bipolar transistor (IGBT) series-connected is developed that could meet the demand for 30 kV peak testing voltage. The whole device can work independently in cosine rectangular wave and DC oscillation wave. An experiment platform is built in the laboratory, and a PD test is performed on a section of cable with artificial defect. The results validate the effectiveness of the equipment for testing cable insulation.

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备注/Memo

备注/Memo:
收稿日期:2020-01-17; 修回日期:2020-03-10 基金项目:国网福建省电力有限公司科技项目(51233016000X)。 Project Supported by Fujian Power Grid Corparation Technology Project Under Grand(51233016000X).郭建钊(1964—),男,本科,高级工程师,长期从事生产管理及输变电、信息通信及科技管理工作。
更新日期/Last Update: 2020-07-25