Products Relays

B-PRO 8700 Bus Protection Relay (3 Phase)

The B-PRO 8700 provides bus and substation differential protection (low impedance) with CT saturation security, integrated breaker failure and overcurrent protection with, DFR quality fault oscillography and dynamic swing recording, sequence of events logging, SCADA control and metering in a fully integrated protective relay solution.

Protection

6 sets of CT inputs for differential protection (18 currents) using percentage slope characteristic for security on external faults. Low impedance design allows different CT ratios for each of the 6 inputs
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.
Protection functions include IEEE devices 87B, 27, 59, 60, 81, 87T, 50LS, 50BF, 50/51/67, 50N/51N/67, 46/50/51/67
1 or 2 separate differential zones - bus and transformer or Bus 1 and Bus 2 for multiple buses
ProLogic - control logic statements

Recording, Monitoring and Metering

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

Substation Automation - Ethernet Ready

Direct-connect DNP3 and Modbus SCADA communication protocols
3 communication RS-232 ports
IRIG-B time stamping and sample synchronization
30 virtual inputs for local remote control
Standard 10 Base T Ethernet Port
Optional internal modem

Easy to Use

Easy to use, simplified relay setting and record analysis software (Windows® 2000/XP) included
Intuitive ASCII-terminal interface provides full local or remote access