CN112198405B - 一种船舶电缆绝缘水分入侵体积估算方法 - Google Patents

一种船舶电缆绝缘水分入侵体积估算方法 Download PDF

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CN112198405B
CN112198405B CN202011079807.0A CN202011079807A CN112198405B CN 112198405 B CN112198405 B CN 112198405B CN 202011079807 A CN202011079807 A CN 202011079807A CN 112198405 B CN112198405 B CN 112198405B
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cable
ship
leakage current
insulation moisture
insulation
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CN112198405A (zh
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盛进路
曾杨
叶冬梅
许辰岑
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Chongqing Jiaotong University
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Chongqing Jiaotong University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/32Measuring arrangements characterised by the use of electric or magnetic techniques for measuring areas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52Testing for short-circuits, leakage current or ground faults
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

本发明公开了一种船舶电缆绝缘水分入侵体积估算方法,包括步骤:对船舶电缆进行泄漏电流测试、计算其平均泄漏电流值、判断电缆绝缘水分入侵阶段、估算电缆绝缘水分入侵体积。本发明的有益效果在于:在不破坏电缆整体结构的情况下,可高效、准确、安全、方便地对船舶电缆绝缘水分入侵体积进行估算,为船舶电缆绝缘状态的检测及诊断提供参考,对电缆健康状态的评估有重要的参考价值,实现其可靠运行。

Description

一种船舶电缆绝缘水分入侵体积估算方法
技术领域
本发明涉及电缆绝缘状态测评领域,具体涉及一种船舶电缆绝缘水分入侵体积估算方法。
背景技术
随着海洋经济的发展,海岛能源的需求日益增大,海洋结构物高压电缆己经成为给海洋开发活动提供能源支撑的纽带。海洋结构物高压电缆主要应用于岛均和海上石油平台供电、海上风电场输电等重要场合,靠近大陆的海岛可采用海底电力电缆连接到大陆电网。海洋结构物高压电缆结构复杂、重量大,在运输敷设以及运行中受盘绕拉伸、洋流冲击、负荷电流变化等各种因素影响,再加上海洋结构物高压电缆工作电压高、电流大、距离长、运行环境恶劣,其机械和电气性能经常受到威胁,导致其服役年限更短、故障率更高,给生产和生活带来了巨大的经济损失。
船舶高压电缆运行于海底,常年承受船舶抛锚、潮汐及洋流冲刷、海洋微生物侵蚀及护套的磨损导致海水的浸入,电缆内水分的增加降低了介电强度和绝缘寿命,由此导致的停电往往会产生巨大的经济损失。
目前尚无在保持电缆完整结构的前提下进行电缆绝缘水分入侵定量的估算方法,这极大的限制了对完整电缆绝缘性能的评估,因此急需一种船舶电缆绝缘中水分入侵体积的估算方法。
发明内容
本发明的目的是提供一种船舶电缆绝缘水分入侵体积估算方法。
实现本发明目的的技术方案如下:
一种船舶电缆绝缘水分入侵体积估算方法,其特征在于,包括
步骤1:对船舶电缆进行泄漏电流测试:
利用泄漏电流测试仪对船舶电缆进行泄漏电流测试,得到n次泄漏电流数据,记为Ia,a=1,2,...,n;
步骤2:计算n次泄漏电流数据的平均值
其中a=1,2,...,n;
步骤3:判断电缆绝缘水分入侵阶段S:
步骤4:估算电缆绝缘水分入侵体积V:
本发明的有益效果在于:
在不破坏电缆整体结构的情况下,可高效、准确、安全、方便地对船舶电缆绝缘水分入侵体积进行估算,为船舶绝缘状态的检测及诊断提供参考,对电缆健康状态的评估有重要的参考价值,实现其可靠运行。
附图说明
图1为本发明的流程图。
具体实施方式
下面结合附图和具体实施例对本发明进一步说明。
图1所示为一种船舶电缆绝缘水分入侵体积估算方法流程图,包含以下步骤:
步骤1:对船舶电缆进行泄漏电流测试:
利用泄漏电流测试仪对船舶电缆进行泄漏电流测试,得到30次泄漏电流数据,记为Ia,a=1,2,...,30,Ia的单位为微安(μA);
步骤2:计算30次泄漏电流数据的平均值
其中,a=1,2,...,30;
步骤3:判断电缆绝缘水分入侵阶段S:
步骤4:估算电缆绝缘水分入侵体积V:
可根据公式(3)估算绝缘水分入侵体积,V的单位为立方微米(μm3)。

Claims (1)

1.一种船舶电缆绝缘水分入侵体积的估算方法,其特征在于,包括
步骤1:对船舶电缆进行泄漏电流测试:
利用泄漏电流测试仪对船舶电缆进行泄漏电流测试,得到n次泄漏电流数据,记为Ia,a=1,2,...,n;
步骤2:计算n次泄漏电流数据的平均值
其中a=1,2,...,n;
步骤3:判断电缆水分入侵阶段S:
步骤4:估算电缆绝缘缺陷水分入侵体积V:
其中,V的单位为μm3
CN202011079807.0A 2020-10-10 2020-10-10 一种船舶电缆绝缘水分入侵体积估算方法 Active CN112198405B (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721916A (en) * 1985-04-19 1988-01-26 Hitachi Cable, Ltd. Method for diagnosing an insulation deterioration of a power cable
EP2068221A1 (en) * 2007-12-04 2009-06-10 Succes A/S Flow-sensing device
CN104051740A (zh) * 2013-03-14 2014-09-17 株式会社东芝 正极以及电池
CN108761298A (zh) * 2018-09-05 2018-11-06 国网河北省电力有限公司电力科学研究院 配电电缆绝缘检测试验方法
CN110658431A (zh) * 2019-11-03 2020-01-07 西南交通大学 一种电力电缆终端水分侵入程度监测和评估方法
CN110879101A (zh) * 2019-11-28 2020-03-13 徐州中翰矿山设备制造有限公司 一种用于实时监测矿用电机振动幅度的监测系统
CN111693827A (zh) * 2020-05-21 2020-09-22 国网河北省电力有限公司电力科学研究院 一种基于余弦方波耐压试验电缆水树严重程度诊断方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721916A (en) * 1985-04-19 1988-01-26 Hitachi Cable, Ltd. Method for diagnosing an insulation deterioration of a power cable
EP2068221A1 (en) * 2007-12-04 2009-06-10 Succes A/S Flow-sensing device
CN104051740A (zh) * 2013-03-14 2014-09-17 株式会社东芝 正极以及电池
CN108761298A (zh) * 2018-09-05 2018-11-06 国网河北省电力有限公司电力科学研究院 配电电缆绝缘检测试验方法
CN110658431A (zh) * 2019-11-03 2020-01-07 西南交通大学 一种电力电缆终端水分侵入程度监测和评估方法
CN110879101A (zh) * 2019-11-28 2020-03-13 徐州中翰矿山设备制造有限公司 一种用于实时监测矿用电机振动幅度的监测系统
CN111693827A (zh) * 2020-05-21 2020-09-22 国网河北省电力有限公司电力科学研究院 一种基于余弦方波耐压试验电缆水树严重程度诊断方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Analysis of electric field distribution of cable insulation defects;Jiaguo Liu 等;《 Journal of Physics: Conference Series》;第1087卷(第4期);第1页 *
XLPE电缆水树老化及其诊断技术的研究进展;周凯 等;《绝缘材料》;第7-14页 *
牵引变压器绝缘老化特性及其检测技术的研究;盛进路;《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅱ辑》(第6期);第C042-202页 *

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