Inducted Voltage Simulation of Metal Sheath and Analysis on Maximum Allowable Laying Length for High Voltage Single-core Cable

ZHANG Zhongyuan; RUI Haoran; LIU Hechen; LIU Yunpeng

doi:10.13296/j.1001-1609.hva.2020.05.022

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Inducted Voltage Simulation of Metal Sheath and Analysis on Maximum Allowable Laying Length for High Voltage Single-core Cable

更新时间：2025-04-26

- Inducted Voltage Simulation of Metal Sheath and Analysis on Maximum Allowable Laying Length for High Voltage Single-core Cable
- High VoltageApparatus Vol. 56, Issue 5, Pages: 143-148(2020)
- 作者机构：
  
  1. 华北电力大学河北省输变电设备安全防御重点实验室
  2. 国网保定供电公司
  3. 3. 华北电力大学新能源电力系统国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.05.022
  CLC： TM75
- Published：2020
- 稿件说明：
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[1]张重远,芮皓然,刘贺晨,刘云鹏.高压单芯电缆金属护套感应电压仿真计算及最大允许敷设长度研究[J].高压电器,2020,56(05):143-148.

ZHANG Zhongyuan, RUI Haoran, LIU Hechen, et al. Inducted Voltage Simulation of Metal Sheath and Analysis on Maximum Allowable Laying Length for High Voltage Single-core Cable[J]. High voltageapparatus, 2020, 56(5): 143-148.
[1]张重远,芮皓然,刘贺晨,刘云鹏.高压单芯电缆金属护套感应电压仿真计算及最大允许敷设长度研究[J].高压电器,2020,56(05):143-148. DOI： 10.13296/j.1001-1609.hva.2020.05.022.

ZHANG Zhongyuan, RUI Haoran, LIU Hechen, et al. Inducted Voltage Simulation of Metal Sheath and Analysis on Maximum Allowable Laying Length for High Voltage Single-core Cable[J]. High voltageapparatus, 2020, 56(5): 143-148. DOI： 10.13296/j.1001-1609.hva.2020.05.022.

摘要

提高电力电缆的敷设长度

可以减少中间接头数量

提高系统供电可靠性。文中从高压单芯电缆电气制约、运输制约和敷设制约三方面探究了延长高压单芯电缆最大允许敷设长度的可能性。还分析了

当电缆长度增加

发生雷电过电压入侵和单相接地故障时

金属护套感应过电压的变化情况。研究表明:感应电压允许值为300 V时

感应电压不再是限制电缆敷设长度的主要因素。最后在金属护套感应电压仿真计算、电缆盘公路运输和电缆敷设牵引力计算的基础上

对某变电站电缆线路提出敷设建议。

Abstract

Increasing laying length of a power cable can reduce the number of intermediate joints and improve power system reliability.This paper explores the possibility of extending the maximum allowable laying length of high-voltage single-core cable from three aspects—electrical control

transportation control and laying control.It is also analyzes the change of the induced overvoltage on the metal sheath when the cable length increases

lightning overvoltage intrusion happens or single-phase ground fault occurs.The results show that the induced voltage is no longer the main factor limiting the laying length of the cable when the allowable voltage is 300 V.In addition

based on the calculations of the induced voltage of the metal sheath

the road transportation of cable reels

and the traction force for cable laying

a proposal for laying cable line of a substation is put forward.

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