Test and Calculation of Short-circuit Arc Explosion Wave Energy of 220 kV High Voltage Cable Joint

YANG Xin; SUN Haotian; LIU Zhen; ZHONG Miaolong; QIU Wei; CUI Jiangjing

doi:10.13296/j.1001-1609.hva.2021.10.006

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Test and Calculation of Short-circuit Arc Explosion Wave Energy of 220 kV High Voltage Cable Joint

更新时间：2025-04-26

- Test and Calculation of Short-circuit Arc Explosion Wave Energy of 220 kV High Voltage Cable Joint
- High VoltageApparatus Vol. 57, Issue 10, Pages: 44-49(2021)
- 作者机构：
  
  1. 长沙理工大学电气与信息工程学院
  2. 广东电网有限责任公司珠海供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.10.006
  CLC： TM75
- Published：2021
- 稿件说明：
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YANG Xin, SUN Haotian, LIU Zhen, et al. Test and Calculation of Short-circuit Arc Explosion Wave Energy of 220 kV High Voltage Cable Joint[J]. High voltageapparatus, 2021, 57(10): 44-49.
DOI：

YANG Xin, SUN Haotian, LIU Zhen, et al. Test and Calculation of Short-circuit Arc Explosion Wave Energy of 220 kV High Voltage Cable Joint[J]. High voltageapparatus, 2021, 57(10): 44-49. DOI： 10.13296/j.1001-1609.hva.2021.10.006.

摘要

高压电缆接头发生电弧故障时

电弧通道膨胀产生的爆炸冲击波是造成二次事故的直接原因

研究接头的短路电弧爆炸波能对高压电缆接头保护装置的结构设计和防爆性能检验至关重要。文中设计并实施了50 k A/200 ms大电流人工短路燃弧试验

实测了220 kV高压电缆接头保护装置泄能孔释放的爆炸冲击波超压值。建立了电缆接头及保护装置的热—流场短路电弧爆炸仿真模型

计算了不同热源能量时

从泄能孔释放的冲击波超压。通过对比相同条件下人工短路燃弧试验中的冲击波超压实测数值

得到了220 kV高压电缆接头短路电弧的爆炸波能。所得结果可为220 kV高压电缆接头保护装置的设计和检测提供理论依据。

Abstract

In case of arc fault in a high-voltage cable joint

the explosion shock wave generated by the expansion of the arc channel is the direct cause of the secondary fault. Studying the short-circuit arc explosion wave energy of the joint is essential for the structural design and explosion-proof performance inspection of the high-voltage cable joint protection device. In this paper

the 50 kA/200 ms high-current artificial short-circuit arcing test is designed and implemented and the explosion shock wave overpressure value released from the energy discharge hole of 220 kV highvoltage cable joint protection device is actually measured. The simulation model of the thermal-flow field short-circuit arc explosion of the cable joint and the protection device is set upand the shock wave overpressure released from the leak hole of energy is calculated. The explosion wave energy of short circuit arc of 220 kV cable joint is obtained by comparing the actually measured over pressure of shock wave in the artificial short circuit arcing test at the same condition. The obtained result can provide theoretical evidence for the design and test of 220 kV high voltage cable joint protection device.

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