标准摘要
[中文适用范围]： 本部分 IEC 60034 系列适用于 IEC 60072-1 中规定的机座号 56 至 400 的三相低压笼型感应电动机。本标准建立了从试验中获取单相等效电路元件数值的方法，并定义了这些电路的标准元件。 [外文原描述]： IEC 60034-28:2012 applies to three-phase low-voltage cage induction motors of frame numbers 56 to 400 as specified in IEC 60072-1. This standard establishes procedures to obtain values for elements of single phase equivalent circuit diagrams from tests and defines standard elements of these diagrams. This edition includes the following significant technical changes with respect to the previous edition: - the formulae are now all given for equivalent star-connection equivalent circuit diagrams; - procedures for the determination of equivalent circuit parameters from a load curve test as an alternative to the reverse rotation and locked rotor tests have been added.
英文名称Rotating electrical machines - Part 28: Test methods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motors