IEEE DRAFT C37.119 : D7 2005

1.0 OVERVIEW
     1.1 SCOPE
2.0 REFERENCES
     3.0 DEFINITIONS
     3.1 ABBREVIATIONS
     3.2 PRIMARY PROTECTION
     3.3 BACKUP PROTECTION
     3.4 BREAKER FAILURE PROTECTION
     3.5 LOCAL BREAKER FAILURE PROTECTION
     3.6 REMOTE BACKUP PROTECTION
     3.7 CONTROL TIMER
4.0 THE NEED FOR BREAKER FAILURE PROTECTION
5.0 BACKUP PROTECTION
     5.1 INTRODUCTION
     5.2 BACK-UP PROTECTION CONSIDERATIONS
     5.3 BREAKER FAILURE PROTECTION
     5.4 SUMMARY
6.0 BREAKER FAILURE MODES
7.0 BREAKER FAILURE PROTECTION SCHEMES
     7.1 BASIC BREAKER FAILURE SCHEME
     7.2 BASIC BREAKER FAILURE WITH RE-TRIP LOGIC
     7.3 50BF RESET TIME
     7.4 TWO-STEP TIMING ARRANGEMENT
     7.5 BREAKER FAILURE INITIATE (BFI) SEAL-IN
     7.6 MINIMAL CURRENT SCHEME
     7.7 FAST 52AA, DUAL TIMER BREAKER FAILURE SCHEME
     7.8 TRIPLE TIMER BREAKER FAILURE SCHEME
     7.9 SINGLE PHASE RE-TRIP LOGIC
     7.10 BREAKER FAILURE TIMER BYPASS SCHEME
     7.11 MULTIPLE SCHEMES WITHIN A RELAY:
     7.12 DUAL BREAKER ALTERNATIVE
8.0 BREAKER FAILURE DESIGN CONSIDERATIONS
     8.1 BREAKER FAILURE CURRENT DETECTORS
     8.2 PART OF EXISTING PROTECTION
     8.3 BREAKER FAILURE INITIATION
     8.4 BREAKER FAILURE ACTIONS
     8.5 RESET MECHANISMS FOR BREAKER FAIL TIMERS
9.0 FACTORS INFLUENCING SETTINGS
     9.1 TOTAL CLEARING TIME REQUIREMENTS
     9.2 CONTROL TIMER SETTING FOR SCHEME DESCRIBED IN 7.3
     9.3 SETTING CONSIDERATIONS FOR SCHEME DESCRIBED IN 7.4
10.0 COMMUNICATIONS BASED BREAKER FAILURE PROTECTION
     10.1 COMMUNICATIONS IN CONVENTIONAL BREAKER FAILURE PROTECTION
     10.2 HIGH SPEED PEER TO PEER COMMUNICATIONS ON SUBSTATION LAN
11.0 BREAKER FAILURE RELAY TESTING
     11.1 END TO END TESTING
ANNEX A (Informative) Bibliography
APPENDIX B (Informative) Breaker Failure Setting Example

Provides help to relay engineer to understand the application considerations when applying breaker failure protection to power circuit breakers.