基于IEC 60255-8模型热过负荷保护的校验方法  

A Verification Method for Thermal Overload Protection Based on IEC 60255-8Model

作　　者：赵曙伟[1] ZHAO Shuwei(Suzhou Nuclear Power Research Institute,Shenzhen 518120,China)

机构地区：[1]苏州热工研究院有限公司,广东深圳518120

出　　处：《电工技术》2019年第1期107-108,112,共3页Electric Engineering

摘　　要：不同原理的热过负荷保护利用正、负序电流热积累效应原理,在不同模型平台为电机提供热过载保护。以IEC 60255-8模型为例,分别利用三种不同的方法对保护动作原理特性进行验证性校验。结合理论计算与实操步骤,校验技术及其试验结论的正确性,是较为简单、实用的一种校验方法。Different principles of thermal overload protection make use of the principle of positive and negative sequence current thermal accumulation to provide thermal overload protection for motors on different model platforms.Taking the IEC 60255-8 model as an example,three different methods are used to verify the characteristics of the protection action principle respectively.Through the combination of theoretical calculation and practical steps,it provides a dual guarantee for the correctness of the verification technology and its experimental conclusions.It is a simple and practical verification method for the protection of the work site.

关 键 词：IEC60255-8 热过负荷 校验 正序 负序 

分 类 号：TM772[电气工程—电力系统及自动化]