Products Relays

B-PRO 8701 Bus Protection Relay (1 Phase)

Data Sheet Manual Ordering Template Software Firmware 1.0b Release Description

The B-PRO 8701 provides bus & substation differential protection (low impedance), with CT saturation security, integrated breaker failure & overcurrent protection with DFR quality fault oscillography sequence of events logging and metering in a fully integrated protective relay solution. Application for 2 to 18 bus connections using three single phase B-PRO 8701 relays.

Protection

• Up to 18 sets of CT inputs for differential protection (54 currents) using percentage slope characteristics for security on external faults. One B-PRO relay (model 8701/BUS) for each phase
• CT saturation blocking for external faults
• Backup overcurrent and breaker failure for each input current. User defined directional control of overcurrent functions for networked lines. Apply 3 Phase voltages to apply over/under voltage and frequency functions.
• Apply 3 phase-to-neutral voltages to provide metering, plus over/under voltage, over/under frequency and Loss of Potential protection
• Protection functions include IEEE devices 87B, 27, 59, 60, 81, 50LS, 50BF, 50/51/67
• ProLogic - control logic statements

• High quality recording - fault recording (96 samples/cycle) and event logging (1 ms resolution)
• Metering functions for each input connection

• Direct-connect DNP3 and Modbus SCADA communication protocols
• 3 communication RS-232 ports
• IRIG-B time stamping and sample synchronization
• Optional 10 Base T Ethernet Port
• Optional internal modem

• Easy to use, simplified relay setting and record analysis software (Windows® 2000/XP) included
• Intuitive ASCII-terminal interface provides full local or remote access
• Coordinated operation - supports choice of internal modem, external modem or Ethernet card (requires 1/box)