【资料名称】：变压器保护 IEEE

【资料作者】：IEEE

【资料日期】：IEEE

【资料语言】：英文

【资料格式】：PDF

【资料目录和简介】：

Abstract: This guide is intended to provide protection engineers and other readers with
guidelines for protecting three-phase power transformers of more than 5 MVA rated capacity and
operating at voltages exceeding 10 kV. In some cases, a user may apply the techniques
described in this guide for protecting transformers of less than 5 MVA ratings or operating at
voltages less than 10 kV. Information to assist protection engineers in applying properly relays
and other devices to protect transformers used in transmission and distribution systems is
provided in this guide. General philosophy, practical applications, and economic considerations
involved in power transformer protection are discussed. Emphasis is placed on practical
applications. Types of faults in transformers are described. Technical problems with the
protection systems, including the behavior of current transformers during system faults, are
discussed. Associated problems, such as fault clearing and reenergization, are discussed as well.
Keywords: analysis of dissolved gases in transformer oil, application of multifunction relays for
transformer protection, differential protection, failures of transformers, overcurrent protection,
protection of phase-shifting transformers, protection of transformers, volts-per-hertz protection
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