高压开关设备和控制设备. 第211部分: 额定电压大于52 kV的电力变压器和气体绝缘金属封闭式开关设备的直接连接

[中文适用范围]： “IEC 62271的这一部分适用于额定电压高于52 kV的气体绝缘金属封闭开关设备（GIS）和变压器装置之间的单相和三相直接连接，以建立电气和机械互换能力并确定供电限制用于变压器连接。直接连接一端浸入变压器油或绝缘气体中，另一端浸入开关柜的绝缘气体中。变压器布置为单相封闭布置的单相变压器@三相变压器具有三个单相封闭布置或具有三个变压器套管的三相封闭布置的三相变压器。连接满足IEC 62271-203气体绝缘金属封闭开关设备@电力变压器的IEC 60076和IEC的要求60137 用于完全浸入式套管。就本国际标准而言，术语“开关设备”用于“气体绝缘金属封闭开关设备”。 [外文原描述]： IEC 62271-211:2014 is applicable to single and three phase direct connections between gas-insulated metal-enclosed switchgear (GIS) for rated voltages above 52 kV and transformer arrangements to establish electrical and mechanical interchange ability and to determine the limits of supply of for the transformer connection. This first edition cancels and replaces the first edition of IEC TR 61639:1996 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) transfer from technical report to international standard; b) the minimum voltage rating was changed from 72,5 kV to above 52 kV; c) update of normative references; d) definition of insulated junction including limit of supply; e) definition of dielectric test of gas-insulated metal-enclosed switchgear for transformer connection in a three phase enclosure; f) addition of interface tolerances at transformer side; g) addition of transformer tolerances in service; h) addition of exceptional loads for bushings and flanges; i) consideration of oil- and gas-insulated transformers; j) inclusion of three-phase enclosed direct connections. The contents of the corrigendum 1 of August 2015 and corrigendum 2 of August 2017 have been included in this copy.