Multi Busbar Protection Relay
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Multi Busbar Protection Relay Product Overview The B-PRO Multi Busbar (MBB) Protection System provides fast, reliable and secure protection for any busbar configuration with built in check zone feature. Its scalable architecture allows flexibility to use the optimum hardware combinations based on the actual number of zones and number of current inputs (bays) in the bus system. The IEC61850 station bus embedded B-PRO MBB system provides low impedance bus differential protection, independent check zone protection, CT open detection & blocking, advanced CT saturation detection, circuit breaker failure protection, end fault (blind zone) protection and backup over current & earth fault protection from distribution to EHV substations. It also provides control, automation, metering, monitoring, fault oscillography, event logging, fault logging and dynamic swing recording, with advanced communications in a flexible cost effective package. • Easy-to-use, intuitive setting and analysis software • Configure up to 4 B-PRO relays, each with 6 x 3 Phase CT Inputs, to protect one integrated Multi Bus System • Dynamic Bus Replica • Isolator and CB status monitoring and alarming for mismatch positions • Integrated Breaker Fail Protection with external singlephase initiation, End Zone and Over Current & Earth fault Protection for each input current (bay) • High quality fault recording and event log • Delta phase and Rate of Change of Differential Algorithms for improved selectivity and security • IEC 61850 communications via optical/copper ports • Two Ethernet ports with unique MAC addresses accommodate network access security needs

Application B-PRO MBB system can be effectively used for fast, reliable and secure differential protection of busbars, T-sections and meshed corners. It provides protection for multiple zones and finds application in a variety of bus and switchgear configurations. It can be used for differential protection of single or double bus with or without transfer bus, single and double breaker, breaker-and-a-half configurations and busbars with sectionalizing breakers or isolators. As a typical case, protection for 22 bays plus one bus transfer breaker and one bus coupler breaker can be provided...

Features & Benefits Ease of Use • Easy-to-use, install and maintain • User-friendly, Windows®-based relay setting and record analysis software • Relay Control Panel - for on-line monitoring, DR fault log & Event handling • Flexible programmable logic for building customized schemes with ProLogic™ statements - 24 control logic statements per relay Ease of Installation and Maintenance • Substation automation - includes IEC61850 station bus protocol to display and transfer operational data via local-area network (LAN) for local HMI and wide-area network (WAN) for remote monitoring SCADA • IEC...

Multi-Functional Recording and Event Logging • Exceptional fault recording capabilities with 96 samples/cycle and dynamic swing recording at 1 sample/cycle • Up to 150 seconds of transient record, or up to 150 mins of swing records, or combination of transient, swing and optionally event records • Metering functions for each current input • Sequence of Event Recorder with 1 ms resolution • Compressed event record capabilities – a compressed sequence of event fileiscreatedevery250events RecordGraphTM and RecordBase ViewTM • Display multiple channels simultaneously and combine records •...

Typical Application Diagrams Figure 1. Single Bus Application

Figure 2. Single Bus, Multi Zone Application

Figure 3. Multi Zone Application Topology Inputs & Outputs Inputs & Outputs Inputs & Outputs

Figure 4. Double Bus Application Topology

Best in Class Human-Machine Interface Large LCD display, allows for better metering display Navigation controls allow for an easy experience through maintenance, service and view menus New faster processor and hardware platform Programmable target LEDs provide tripping information to expedite response to system events Unique front panel USB and Ethernet ports provide easy and fast access to settings and set up Rear optical ports ready for IEC 61850 Protection & Control Function Diagram Transfer Bus Bus A Bus B PT X These protection functions are available for each current input. B-PRO Unit

Item General Nominal Frequency Operating Time Sampling Rate Power Supply Protection Functions IEEE Device 87B, 60 CTS, End Fault, 50BF, 50LS, 50/51/67, 50N/51N/67, 46-50/67, 46-51/67, 27,59, 60VTS, 81O, 81U Multiple Zones of Protection ProLogic Recording Record Capacity Quantity/Specs 50 or 60 Hz 87B: less than 15 ms 96 samples/cycle for recording Range: 43 - 275 Vdc, 90 - 265 Vac 6 x 3-phase current inputs (18 current channels) per B-PRO relay 1 x 3-phase voltage inputs (3 voltage channels) per B-PRO relay Up to 3 bus differential zones and a check zone 24 statements per B-PRO relay...

Item Quantity/Specs Output (contacts) for each 14 programmable outputs and 1 relay inoperative output B-PRO relay Virtual Inputs 30 Virtual Inputs B-PRO 4000 I/O External Inputs Up to 128 extended Inputs and 16 Outputs per I/O Unit. and Outputs Notes Make: 30 A as per IEEE C37.90 Carry: 8 A Break: 0.9 A at 125 Vdc 0.35 A at 250 Vdc Interface & Communication on each B-PRO 4000 Relay Front Display 240 x 128 pixels graphics LCD Front Panel Indicators 16 LEDs: 11 programmable and 5 fixed Front Panel Interfaces Rear User Interfaces SCADA Interface USB port and 100BASE-TX Ethernet...

Item Environmental Ambient Temperature Range Humidity Insulation Test (Hi-Pot) Electrical Fast Transient Oscillatory Transient RFI Susceptibility Vibration, Shock and Bump Conducted RF Immunity Voltage Interruptions Quantity/Specs Notes -40°C to 85°C for 16 hours -40°C to 70°C continuous Up to 95% without condensation Power supply, analog inputs, external inputs, output contacts at 2.0 kV, 50/60 Hz, 1 minute Tested to level 4 - 4.0 kV 2.5/5 kHz on power and I/O lines Test level = 2.5 kV 10 V/m modulated, 35 V/m unmodulated 3 g, 5 g and 15 g 200 ms interrupt Overall B-PRO Accuracies:...