前言:这是CSA C391的第一版，翻新期间三相同步电机的测试。CSA承认，本标准的制定部分得益于BC Hydro、加拿大电气协会、效率新斯科舍省、魁北克水电、马尼托巴水电、加拿大自然资源部（NRCan）、安大略省电力局和萨斯喀彻温省电力公司的财政支持。简介:本综合标准为电机服务中心提供指导，以协助验证翻新过程是否保持或提高了同步电机的效率。 它还旨在提供可靠的评估，以评估机器故障可能导致的任何机器状态变化及其效率。本标准中规定的所有试验均不得在维修中心翻新的每台机器上进行。这些测试的应用将取决于所执行的工作类型，以及确认机器损坏及其维修不会导致效率发生变化的需要。众所周知，电机运行或故障模式期间造成的损坏可能会降低机器效率。 如果试验结果超过规定的合格/不合格标准，本标准无意要求机器停止使用或报废。然而，测试结果可能有助于未来的维修/更换决策和未来的节能规划。规定的测试和合格/不合格标准在北美的机器服务中心行业中广为人知并得到应用。第2条提供了参考资料，可获取该标准规定的各种试验的进一步详细信息。需要指出的是，翻修机器时，由于与电机效率没有直接关系，因此有许多额外的测试和检查程序不属于本标准的一部分。 第12条中引用的材料中提供了一些更常见的信息。并非所有这些规定的测试都可以或应该在每台需要翻新的机器上进行。机器服务中心负责确定哪些检查和测试选项适用。本标准不要求进行负载测试，因为此类设备在整个机器服务行业中不易获得。在某些情况下，由于缺少部件，运行机器是不实际的。范围:1.1本标准涵盖150千瓦及以上、200至13800伏、60和50赫兹的三相交流凸极同步电机，并将协助验证是否保持了电机效率。 注:本标准适用于本标准范围以外的产品。1.2本标准不包括通常用作公用事业和大型工业应用发电机的大型2极和4极实心圆柱转子电机。注:发电机信息见附录E。1.3在本标准中，“应”用于表示要求，即用户为遵守本标准而有义务满足的规定；“应该”用于表示建议或建议但不需要的建议；“可”用于表示一个选项或在标准范围内允许的选项。 注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。附件被指定为规范性（强制性）或信息性（非强制性）以定义其应用。

Preface:This is the first edition of CSA C391,Testing of three-phase synchronous machines during refurbishment.CSA acknowledges that the development of this Standard was made possible, in part, by the financial support of BC Hydro, Canadian Electrical Association, Efficiency Nova Scotia, Hydro Québec, Manitoba Hydro, Natural Resources Canada (NRCan), Ontario Power Authority and Saskatchewan Power.Introduction:This comprehensive Standard provides guidance to electric machine service centres to assist in verifying that the refurbishing process has maintained or enhanced the synchronous machine efficiency. It is also intended to provide a reliable evaluation of any changes to the condition of a machine, with respect to its efficiency, that could have resulted from its failure. It is not mandatory that all of the tests presented in this Standard be performed on every machine that is refurbished by the service centre. The application of these tests will depend on the type of work performed and the need to confirm that no change in efficiency has occurred as a result of damage to the machine and its repair. It is acknowledged that the machine efficiency could be depreciated by the damage caused during the motor operation or failure mode. In cases where the test results exceed the prescribed pass/fail criteria, it is not the intent of this Standard to require that the machine be removed from service nor scrapped. However, the test results might assist in future repair/replace decisions and future energy conservation planning.The prescribed tests and pass/fail criteria are well known and employed throughout the machine service centre industry in North America. Clause 2 provides reference materials that may be accessed for further details on the various tests prescribed by this Standard.It should be pointed out that there are many additional tests and inspection procedures employed when refurbishing machines that are not part of this Standard because they are not directly related to the motor efficiency. Some of the more common ones are available in the materials referenced in Clause 12. Not all of these prescribed tests can or should be administered on every machine that is to be refurbished. It is the responsibility of the machine service centre to determine which inspection and tests options are applicable.Load testing is not required by this Standard because such equipment is not readily available throughout the machine service industry. In some cases it will not be practical to run the machine because of the lack of components.Scope:1.1This Standard covers three-phase, alternating current, salient pole synchronous machines 150 kW and up, 200 through 13,800 volts, 60 and 50 Hertz and will assist in verifying the machine efficiency has been maintained.Note: This Standard can be useful and applied with discretion to products outside the scope of this Standard.1.2Large 2-pole and 4-pole solid cylindrical rotor machines, typically used as generators for utility and large industrial applications, are excluded from this Standard.Note: See Annex E for information on generators.1.3In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.