ERLPhase Power Technologies Ltd

B-PRO Bus Protection Relays

B-PRO Bus Protection Relays

The B-PRO relays provide low impedance differential protection for any bus bar configuration with CT saturation security, integrated breaker failure, overcurrent protection and SCADA control in a fully integrated solution. The B-PRO also provides control, automation, metering, monitoring, and high quality fault oscillography and sequence of events logging.

Application in B-PRO 4000 Bus Protection Relay

• Simple bus applications with up to 6 feeders and 2 differential zones with breaker failure, or 4 feeders and 1 transformer, including separate full transformer differential protection (87T)
• 1 or 2 separate differential zones - bus and transformer or Bus 1 and Bus 2 for multiple buses

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 o 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)