直流应用用轴承

[中文适用范围]： 本国际标准适用于直流系统中使用的任何电压等级的户外和户内套管，包括电容分级或气体绝缘类型的套管，用作液浸式换流变压器和平波电抗器的组件，以及空气-空气直流套管。它适用于线路换向换流器（LCC）和电压源换流器（VSC）技术。 本文件不适用于以下内容： • 电缆终端（电缆头）； • 用于仪用变压器的套管； • 用于测试电源的套管； • 外部使用气体绝缘（除大气压力下的空气外）的套管； • 用于工业应用的套管； • 用于牵引应用的套管； • 用于配电变压器的套管。 本文件参考IEC 60137的一般术语和条件，并定义了用于直流应用的套管的特殊术语、操作条件、额定值、测试程序以及一般机械和电气要求。 [外文原描述]： IEC/IEEE 65700-19-03:2025 applies to outdoor and indoor bushings of any voltage used on DC systems, of capacitance graded or gas insulated types for use as components of liquid-filled converter transformers and smoothing reactors, as well as air-to-air DC bushings. It applies to both line commutated converter (LCC), as well as voltage source converter (VSC) technologies. This document does not apply to the following: - cable terminations (potheads); - bushings for instrument transformers; - bushings for test power supplies; - bushings applied with gaseous insulation (other than air at atmospheric pressure) external to the bushing; - bushings for industrial application; - bushings for traction application; - bushings for distribution class transformers. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision and includes the following significant technical changes with respect to the previous edition: - service experiences as well as established market requirements have been harmonized with existing IEC and IEEE standards, primarily IEC 60137, Insulated bushings for alternating voltages above 1 000 V, and IEEE Std C57.19.00™, IEEE Standard General Requirements and Test Procedures for Outdoor Power Apparatus Bushings; - inclusion of voltage source converter (VSC) technologies.