摘要
分析了变电站接地网的重要性。在现有理论和实践的基础上,首次全面系统地介绍了变电站接地网状态检测的主要内容,并总结归纳了一套适用于变电站接地网特性参数测量的工作流程、测量回路布线要求、检测方案等相关的原理和方法,还通过实际案例重点介绍了大电流变频法等测量技术的应用。大量实践结果也说明了该套检测方法具有很好的实用性及推广应用价值。
The importance of grounding grid in substation is analyzed. Based on the current theories and experience,it not only illustrates the main contents of grounding grid measurement for the first time,but also summarizes a series of techniques on testing the characteristics and parameters of the grounding grid in substation. Besides,the application on large-current frequency-conversion measuring technology through one substation is introduced emphatically. Finally,according to a great deal of testing cases,it proved the methods presented in this paper can be used widely.
出处
《仪表技术》
2015年第6期31-34,38,共5页
Instrumentation Technology
关键词
变电站
接地网
特性参数
变频法测量
状态评估
substation
grounding grid
characteristic and parameter
frequency-conversion measuring
condition evaluation
