等电位联结对TN系统短路保护灵敏度的影响分析  

Influence of Equipotential Bonding on Sensitivity of TN System Short Circuit Protection

作　　者：黄旭 HUANG Xu(SINOPHARM Chongqing Pharmaceutical and Medical Industry Design Institute Corporation,Chongqing 400039,China)

机构地区：[1]国药集团重庆医药设计院有限公司,重庆400039

出　　处：《现代建筑电气》2022年第8期35-40,共6页Modern Architecture Electric

摘　　要：从等电位联结和短路灵敏度校验的原理入手,分析了等电位联结的概念和作用,阐述了等电位联结对短路灵敏度校验的影响,总结了校验计算中各种参量的选取及其依据,根据设计将等电位导体纳入计算公式,利用基于excel制作的灵敏度校验表,应用实际案例进行短路灵敏度校验,直观地反映出等电位联结对短路灵敏度校验的影响。This paper starts with the principle of equipotential bonding and short circuit sensitivity verification,analyzed the concept and function of equipotential bonding.Expounded the influence of equipotential bonding on short circuit sensitivity verification.Summarized the selection and basis of various parameters in calibration calculation.According to the design the equipotential conductor is included in the calculation formula.Based on excel,edited the sensitivity check table.Use sensitivity check table to check and approve the sensitivity of actual cases.Reflected the influence of equipotential bonding on short-circuit sensitivity verification.

关 键 词：单相短路 等电位联结 灵敏度校验 

分 类 号：TM11[电气工程—电工理论与新技术]