有限电源容量系统电动机启动时的电压计算

尤士刚（华通设计顾问工程有限公司，北京市 100034）

Voltage Calculation of Motor of Finite Power Capacity System in Case of Startup

YOU Shigang(Walton Design & Consulting Engineering Co.,Ltd.,Beijing 100034，China)

Abstract：In accordance with relevant standards and codes,the basic concepts,technical specifications and calculation methods related with voltage calculation are analyzed,and calculation examples are used to discuss the application of Excel calculation sheet which is prepared based on comprehensive current method in the voltage calculation of finite power capacity system in case of startup.

Key words：voltage drop;voltage dip;voltage deviation;busbar voltage;terminal voltage;motor startup;finite power capacity system;pre‑wired load

摘　要：结合相关标准规范要求，对与电压计算相关的基本概念、技术规定、计算方法进行分析，并结合计算实例对基于电流综合法编制的Excel计算表在有限电源容量系统电动机启动时的电压计算进行论述。

关键词：电压降；电压暂降；电压偏差；母线电压；端子电压；电动机启动；有限电源容量系统；预接负荷

中图分类号：TU852  　　  　      文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2022.04.010