IEC 62271-110-2017 高压开关设备和控制设备.第110部分:电感负载开关

标准号：IEC 62271-110-2017
中文标准名称：高压开关设备和控制设备.第110部分:电感负载开关
英文标准名称：High-voltage switchgear and controlgear - Part 110: Inductive load switching
标准类型：K43
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：K43
国际标准分类号：29.130.10
引用标准：IEC 60050-441-1984;IEC 62271-1-2017;IEC 62271-100-2008;IEC 62271-100 AMD 1-2012;IEC 62271-106-2011
适用范围：This part of IEC 62271 is applicable to AC switching devices designed for indoor or outdoor installation, for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1000 V and applied for inductive current switching. It is applicable to switching devices (including circuit-breakers in accordance with IEC 62271-100) that are used to switch high-voltage motor currents and shunt reactor currents and also to high-voltage contactors used to switch high-voltage motor currents as covered by IEC 62271-106. Switching unloaded transformers, i.e. breaking transformer magnetizing current, is not considered in this document. The reasons for this are as follows: a) Owing to the non-linearity of the transformer core, it is not possible to correctly model the switching of transformer magnetizing current using linear components in a test laboratory. Tests conducted using an available transformer, such as a test transformer, will only be valid for the transformer tested and cannot be representative for other transformers. b) As detailed in IEC TR 62271-306, the characteristics of this duty are usually less severe than any other inductive current switching duty. Such a duty may produce severe overvoltages within the transformer winding(s) depending on the re-ignition behaviour of the switching device and transformer winding resonance frequencies. NOTE 1 The switching of tertiary reactors from the high-voltage side of the transformer is not covered by this document. NOTE 2 The switching of shunt reactors earthed through neutral reactors is not covered by this document. However, the application of test results according to this document, on the switching of neutral reactor earthed reactors (4-leg reactor scheme), is discussed in IEC TR 62271-306.