ERL 8700/BUS, User Manual, Page: 87 / 166

D01908R02.12 B-PRO User Manual 8700 Appendix A-1
Appendix A IED Specifications
B-PRO Model 8700/BUS Specification
Item Quantity/Specs Note
General:
Nominal Frequency 50 or 60 Hz
Operate Time 8–20 ms for 87B function
12–24 ms for 87T function Including relay output operation.
Sampling Rate 96 samples/cycle for recording
8 samples/cycle for protection
Power Supply Nominal Range: 48–250 Vdc, 120 Vac
Full Operating Range: 40–300 Vdc Battery load is 50 watts or 50VA AC cur-
rent.
Memory Settings and records are stored in non-
volatile memory. Records are stored in a circular buffer.
Protection Functions:
IEEE Dev. 87B, 59, 27, 60, 81, 87T, 50LS,
50BF, 50/51/67, 50N/51N/67, 46-50/46-
51/67 2 differential zones (bus and trans-
former, or Bus1 and Bus2) and overcur-
rent protection on each line. 15 ProLogic statements provide flexible
solutions.
Recording:
Fault 96 s/c oscillography of all analog and
external input channels.
Capacity: up to 15 x 2 second records Records up to the 25th harmonic.
Viewing software provides waveform,
symmetrical components and harmonic
analysis.
Dynamic Swing 1 s/c phasor measurements of line posi-
tive sequence V and I plus frequency
Capacity: up to 15 x 3 minute records
A/D Resolution 13 bits, 8192 counts full scale, peak–
peak.
Events 250
Input and Output:
Analog Input Channels 18 currents and 3 voltages Rating: In = 5 A or 1 A Vn = 69 V
Continuous: 3x In, 2x Vn
One Second: 20x In without distortion
One Minute: 3x Vn, once/hour
Sampling Resolution
12 bits plus sign, amplitude measure-
ment accuracy: ± 0.5% for 54 to 66 Hz
Burden (Analog Inputs) ac input voltage: < 0.15 VA @ 67 V
ac input current: < 0.50 VA @ 5 A
Analog Input Sampling
Sample rate: 96 samples/cycle for
recording, 8x/cycle for protection.
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