Modelling and Simulation of Combined Voltage Test for Breaker

MENG Zheng-zheng1; ZHONG Lei2; L Liang3; GU Chao-min4; LI Yan-ming4

doi:10.13296/j.1001-1609.hva.2010.01.014

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Modelling and Simulation of Combined Voltage Test for Breaker

更新时间：2025-04-26

- Modelling and Simulation of Combined Voltage Test for Breaker
- High VoltageApparatus Vol. 46, Issue 1, Pages: 32-34+39(2010)
- 作者机构：
  
  1. 天津市电力公司技术中心
  2. 西安高压电器研究院
  3. 陕西电力科学研究院
  4. 西安交通大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.01.014
  CLC： TM561
- Published：2010
- 稿件说明：
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[1]孟峥峥,钟磊,吕亮,顾朝敏,李彦明.断路器联合加压试验的建模与仿真[J].高压电器,2010,46(01):32-34+39.

MENG Zheng-zheng1, ZHONG Lei2, L Liang3, et al. Modelling and Simulation of Combined Voltage Test for Breaker[J]. High voltageapparatus, 2010, 46(1): 32-34+39.
[1]孟峥峥,钟磊,吕亮,顾朝敏,李彦明.断路器联合加压试验的建模与仿真[J].高压电器,2010,46(01):32-34+39. DOI： 10.13296/j.1001-1609.hva.2010.01.014.

MENG Zheng-zheng1, ZHONG Lei2, L Liang3, et al. Modelling and Simulation of Combined Voltage Test for Breaker[J]. High voltageapparatus, 2010, 46(1): 32-34+39. DOI： 10.13296/j.1001-1609.hva.2010.01.014.

摘要

在高电压绝缘试验中

对于开关类产品纵绝缘的考核主要以联合加压的试验方式来实现。考核试验过程中会因为试品发生击穿或闪络使回路中设备和部件受到暂态过电压冲击的威胁。建立适用的回路仿真模型

通过该模型分析和预测试验回路中各主要部件和设备上出现的暂态过电压的波形、幅值并且研究相应的防护措施具有十分重要的意义。利用ATP-EMTP电磁暂态仿真软件分别建立了在工频-工频联合加压以及雷电冲击-工频联合加压下

断路器联合加压试验回路的仿真模型

其中

工频试验变压器采用等值入口电容模型

断路器模型采用两端套管对地电容及断口电容的等效模型来表示、高压引线采用分布参数模型。通过理论分析

回路仿真和试验数据对比

验证了所建仿真模型能够较好地实现对回路的仿真模拟。

Abstract

In dielectric tests of UHV switchgears

combined voltage test is conducted to verify the performance of longitudinal insulation of a switchgear.In the test

equipments and elements in test circuit may be exposed to transient overvoltage pulse caused by breakdown or flashover in tested sample.Therefore

it is necessary to establish proper models of test circuits for analyzing the wave shape and peak value of transient overvoltage on the key equipments and investigating corresponding protective measures.This paper establishes two simulation models of test circuits with the software ATP-EMTP to simulate the combined voltage tests for breaker.The combined voltage tests consist of the power frequency voltage combined with power frequency voltage test and the lightning impulse combined with power frequency voltage test.In the power frequency test

transformer is simplified as equivalent entrance capacitance model and breaker as ground capacitance model

and HV lead is treated as distributed parameter models.Comparison of simulation and test results verify the correctness and effectiveness of these models.

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