标准摘要
[中文适用范围]: 本部分规定了控制单元的规则和工业应用,控制单元响应于,与旋转电机一体的热检测器并按照GB/T 13002-1991执行开关功能。 对于含有特殊特性的正温度系数(PTC)热敏电阻检测器的系统,本部分规定厂该系统类删及其相关控制单元的规则。 PT100检测器符合IEC 60751:1983的规定,该标准中规定了相应于检测器温度的电阻值。 本部分列出了当这种特殊的正温度系数热敏电阻检测器与其关联控制单元(标志为“A型检测器”和“A型控制单元”)用于热保护系统时的配合特性要求。 注:由于控制单元的操作特性取决于热检测器的某些方面,因此不可能规定控制单元操作特性的所有要求。热保护系统的某些要求仪在考虑被保护旋转电机的特性以及电机内检测器的安装方式的情况下才能确定。 鉴于以上原因,对于每种特性必须规定由哪一方负责规定特性值,由哪一方负责一致性验证,由哪一方负责进行确认试验。 [外文原描述]: Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to IEC 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by IEC 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its associated control unit (designated "Mark A detector" and "Mark A control unit"), when they are used in thermal protection systems. NOTE It is not possible to specify all the requirements for the operating characteristics of a control unit, as they are dependent on some aspects of the thermal detectors. Some aspects of the requirements of the thermal protector system can only be specified when account is taken of the characteristics of the rotating machine to be protected and the method of installation of the detector within the machine. For these reasons, for each characteristic it is necessary to specify who is responsible for stating the required values and who is responsible for compliance with the requirement and for carrying out any confirmatory test.
英文名称Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines