Description
Application in Multi-Busbar Protection Scheme
- Applications for bus configurations for up to 24 feeders Protection for 3 differential zones and a check zone.
- Scalable architecture allows flexibility to use the most cost effective hardware combinations, based on the actual number of zones and number of current inputs in the bus system
- Dynamic zone selection (including fixed zones) and Selective Bus Tripping based on Isolator status
Common Features and Benefits
- Functional Specific
- Delta Phase and Rate of Change of Differential (ROCOD) algorithms provide enhanced security during external faults with heavy CT saturation
- Protection functions include IEEE devices 87B, 27, 59, 60, 81, 50LS, 50BF, 50/51/67, 50N/51N/67, 46/50/51/67
- Backup overcurrent and breaker failure protection for each input current
- High quality fault recording capabilities and event log
- Flexible Communications
- State-of-the-art communications to accommodate the industry’s latest network-based communications
- Ethernet ports with 2 unique MAC addresses that easily accommodate network access security needs
- Substation Automation
- IEC 61850 Station Bus on dedicated optical/copper Ethernet ports included at no extra cost
- Enhanced DNP3.0 Level 2 SCADA communication protocol including user-selectable point lists, class support and multiple master station support
- Easy to Use
- User-friendly, Windows®-based relay setting and record analysis software
- Flexible programmable logic for building customized schemes with ProLogic™ statements – 24 control logic statements (total of 192 statements)
The B-PRO 4000 Multi-Busbar relay provides protection for any bus bar configuration with 3 differential zones and a check zone. Its scalable architecture allows flexibility to use the most cost effective hardware combinations, based on the actual number of zones and number of current inputs in the bus system. For example, protection for 23 feeders plus one bus tie breaker can be provided using four B-PRO 4000 relays communicating with each other.
The B-PRO 4000 Multi-Busbar system provides current differential bus protection, circuit breaker failure protection, end fault protection, backup over current protection, independent check zone, open CT and advanced saturation detection for EHV bus-bars. It provides control, automation, metering, monitoring, fault oscillography, event logging, and dynamic swing recording, with advanced communications in a flexible cost effective package.
- Easy to use, intuitive setting and analysis software
- Dynamic Bus Replica
- Integrated Breaker Fail Protection with single phase initiation, End Zone Protection and Over Current Protection for each input current
- Isolator and CB status monitoring and alarming
- Delta Phase and Rate of Change of Differential (ROCOD) algorithms provide enhanced security during external faults with heavy CT saturation
- Use 1 x B-PRO 4000 relay for every 6 x 3-phase CT inputs configured for the bus differential element
- High quality fault recording and event log
