本程序适用于额定电压为10 kV或以上、频率为50 Hz或60 Hz的旋转电机的成型绕线棒/线圈，这些旋转电机在正常运行期间会经历从空载到满载电流的多次转换，并且通常会出现快速负载变化。本试验仅涉及接地网绝缘和/或导线包内的热循环退化以及接地网绝缘与导线之间的分层。通常表现出快速负载转换的机器类型包括: --燃烧式涡轮发电机 --抽水蓄能或调峰负荷水轮发电机 --同步冷凝器 --循环负载水泵电机 给出了各种合格/不合格标准，在开始测试之前，用户和制造商必须就适用于特定情况的标准达成一致。 通过比较多个定子线棒或线圈的测试结果，可以最好地确定特定的线棒或线圈是否通过测试。

This procedure is intended for form-wound bars/coils for rotating machines rated 10 kV or more at 50 Hz or 60 Hz that are subjected to many transitions from no-load to full-load current during normal operations, and where rapid load variations are typical. Only the thermal cyclic degradation within the groundwall insulation and/or the conductor package and delamination of the groundwall insulation from the conductor are addressed by this test. Examples of machine types that typically exhibit rapid load transitions include: -- Combustion turbine generators -- Pumped storage or peaking duty hydrogenerators -- Synchronous condensers -- Cyclic duty water pump motors Various pass/fail criteria are presented, and the ones that apply in a specific circumstance must be agreed between the user and the manufacturer prior to commencement of testing. Whether a particular bar or coil has passed or failed is best determined by comparing the test results from a number of stator bars or coils.