电器与能效管理技术Issue(1)：61-67,7.DOI:10.16628/j.cnki.2095-8188.2025.01.011
中低压直流开关电器试验系统应用
Application of Testing System for Medium and Low Voltage DC Switching Devices
王稼骏 1张立茜 1蒋治国 2周璇 1费婉亲1
作者信息
- 1. 浙江方圆电气设备检测有限公司,浙江嘉兴 314001
- 2. 同济大学电子与信息工程学院,上海 201804||嘉兴大学信息科学与工程学院,浙江嘉兴 314001
- 折叠
摘要
Abstract
To meet the testing needs of medium and low voltage DC switching device in rail transit,new energy and other fields,a large-capacity DC short-circuit test platform has been developed.The AC side power supply of the test platform adopts the optional 10 kV grid power supply and short-circuit impact generator dual-circuit option.The maximum short-circuit capacity reaches 3 200 MVA,and the maximum test capability reaches 2 kV/350 kA or 6 kV/120 kA.The platform adopts twelve pulse rectification technology,and the ripple coefficient of the DC output signal is less than 1.5％.A short-time withstand current test was conducted on a DC circuit breaker with a short-time withstand current of 150 kA and a withstand time of 200 ms.Additionally,the short-circuit breaking capacity tests was seperately perfomed on a DC fuse rated at 1 500 V voltage and 250 kA rated short-circuit breaking current,as well as on a DC circuit breaker designed for rail transit,which can withstand a short-circuit current of 135/95 kA under maximum fault conditions.The result show that the test platform can provide test current,ripple coefficient and time constant that meet the product needs and the standard requirements.关键词
中低压直流电器/短路分断能力试验/大电流试验技术/直流断路器Key words
medium and low voltage DC switching device/short circuit breaking capacity test/high current testing technology/DC circuit breaker分类
信息技术与安全科学引用本文复制引用
王稼骏,张立茜,蒋治国,周璇,费婉亲..中低压直流开关电器试验系统应用[J].电器与能效管理技术,2025,(1):61-67,7.
