IEEE Std C37.119-2025 电力系统断路器故障保护指南

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STANDARDS

IEEE Power and Energy Society

Developed by the

Power System Relaying and Control Commiee

IEEE Std C37.119™-2025

(Revision of IEEE Std C37.119-2016)

IEEE Guide for Power System

Circuit Breaker Failure Protecon

IEEE Std C37.119™-2025

(Revision of IEEE Std C37.119-2016)

IEEE Guide for Power System

Circuit Breaker Failure Protection

Developed by the

Power System Relaying and Control Committee

of the

IEEE Power and Energy Society

Approved 10 September 2025

IEEE SA Standards Board

Abstract: Methods to protect a power system from faults that are not cleared because of failure of

a power circuit breaker to operate or interrupt when called upon by a protective relay are described

in this guide. The intent is to provide the reader with a guide on how to detect when a circuit

breaker has failed to clear a fault and how to electrically isolate the fault after the circuit breaker

has failed to clear it. Additionally, schemes that provide primary protection of the power system from

performance failures of the power circuit breaker other than fault clearing failures such as failure to

operate, either tripping or closing, manual or automatic, are also described. Such schemes, when

applied, are typically integrated as a part of the overall breaker failure protection scheme. Also

covered are recent practices that take advantage of new technologies.

Keywords: BFP, breaker failure, breaker failure protection, circuit breaker, fault, IEEE C37.119™,

power system

The Institute of Electrical and Electronics Engineers, Inc.

3 Park Avenue, New York, NY 10016-5997, USA

Published 30 January 2026. Printed in the United States of America.

IEEE is a registered trademark in the U.S. Patent & Trademark Oce, owned by The Institute of Electrical and Electronics Engineers,

Incorporated.

PDF: ISBN 979-8-8557-3021-0 STD28572

Print: ISBN 979-8-8557-3022-7 STDPD28572

IEEE prohibits discrimination, harassment, and bullying.

For more information, visit https:// www .ieee .org/ about/ corporate/ governance/ p9 -26 .html.

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission

of the publisher.

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摘要：

本指南详细解读IEEE Std C37.119-2025标准，专注于电力系统中断路器故障保护（breaker failure protection）的设计、整定与运维要求。该标准为保护工程师提供了系统化的方法，用于检测断路器在跳闸命令发出后未能正常开断的情况，并采取本地或远程后备保护措施，以最短延时清除故障，防止设备损坏和系统失稳。指南涵盖了短路电流的判据、电流互感器配置、计时器逻辑、跳闸回路监视以及与相邻保护装置的配合策略，同时针对现代智能变电站中的数字化通信和自适应保护方案给出了最新建议。通

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IEEE Std C37.119-2025 电力系统断路器故障保护指南

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