旋转电机 - 用于测量刷子操作特性的测试方法和装置

[中文适用范围]： 本文件适用于在规定的试验条件下，用于测量设计用于换向机和滑环机上运行的电刷操作特性的试验方法。作为扩展，某些测试可能也适用于其他类型电器中的滑动电接触。 [外文原描述]： IEC 60773:2021 applies to test methods for the measurement of the operational characteristics of brushes designed to operate on commutating and slip ring machines under specified test conditions. By extension some tests may be relevant for other kinds of sliding electrical contacts for electrical appliances. This second edition cancels and replaces the first edition published in 1983. This edition includes the following significant technical changes with respect to the previous edition: - the clause structure has been modified on the view point of a laboratory testing procedure. The new sequence is as follows: test rig specification, general testing procedure, and specific procedure for each operational characteristic - a new clause has been added to introduce the black-band test for the characterisation of the brush grades for DC machines.