BFM-DFR

39-Channel Digital Fault Recorder

Monitoring up to 12 three-phase current channels sharing common voltage or two independent voltage sources.
Designed for substation digitalization in retrofit projects, the Branch Feeder Monitor provides Digital Fault Recording @ 40 X nominal current and full substation digitalization, enabled by extensive I/O options and communication interfaces.
It is a modular device, fitting every application with the optimal amount of current channels, I/Os and communication interfaces.
The BFM II is designed to interface SATEC’s High Accuracy Current Sensors.

Multi-circuit Digital Fault Recorder: Modular options for fault recording

Recording waveforms @ 64 samples/cycle; up to 40 x I_n
up to 12 three-phase loads
up to 36 single-phase loads
various combinations of the two

Communication

Built-in ports: RS485; ETH
Optional: 4G modem
BACnet; Modbus RTU; DNP3.0
IEC 60870-5-101/104

Digital & Analog I/O (modular)

Digital: up to 72 digital I/O
Analog: up to 4 inputs

Current Inputs

40mA for HACS CTs
recommended: 100A or 200A rated HACS for installation on protection CTs’ 5A secondary

Technical Specifications

Digital Fault Recorder

Waveform capture and logging
Up to 40 x I_n
sampling rate: 64 samples/cycle
simultaneous recording of 12 three-phase current channels
Dedicated DFR setup

Power Meter

Class 0.5S / 0.5 accuracy per IEC 62053-22 / ANSI C12.20
Power: True RMS volts, amps, power, energy, power factor, neutral current and many more
Power quality: individual voltage & current harmonic spectrum and harmonic angles up to 25th order harmonic
Voltage and current THD, TDD and K-Factor
Event and parameter data-logging

Harmonic Analyzer

Voltage and current THD, TDD and K-Factor,
Voltage and current harmonic spectrum and angles, up to the 25th order harmonic

Modular I/O

Up to 72 DI
Up to 18 DO
4 Analog input option

(see Module tab for detailed spec)

Programmable Logical Controller

Embedded programmable controller
4 control setpoints, programmable thresholds and delays for each submeter
Relay output control (for alarm and protection)
1 cycle response and update time

Graphic Display Module (GDM)

Optional 3.5” 320×240 pixel touch-screen graphic display

Real Time Clock

Built-in clock and calendar functions
Accuracy: < 5 sec/month @ 25°C

Communication interfaces

Built-in:

RS485
Ethernet 10/100Base-T

Optional:

4G modem

Communication Protocols

Modbus
ASCII
BACnet
DNP3.0
IEC 60870-5-101/104

Current Inputs

40mA current inputs designated for SATEC’s HACS CTs.
Recommended HACS rating: 100A or 200A nominal current, to be installed on the protection CT’s secondary (5A) allowing the reading of up to 40 x I_n accurately yet without saturation

Voltage & Power Supply

Nominal voltage: 120/208 – 277/480V AC (L-N/L-L)
Input range: 70-561V AC 50/60 Hz (direct connection, L-L)
Self-Energized from measured voltages
Optional auxiliary power supply:
50-290V AC, 40*-290VDC

* Above 60°C – minimum 90V DC

Meter Security

3 levels Password security for protecting meter setups and accumulated data from unauthorized changes
Anti-tamper design (wiring seal)

Mounting

DIN-rail

Documents

The BFM Digital Fault Recorder supports various add-on modules:

Current inputs
I/O
Auxiliary power supply
4G modem

please see below for options and rules regarding possible combinations

Current Input Modules (CIM)

up to 2 CIM modules per instrument
adding up to no more than 36 single-phase current channels altogether

6 current input module – HACS version
18 current input module – HACS version

I/O

up to 4 DI modules per BFM
up to 2 RO module per BFM

9DI: nine digital inputs (dry contact / 24/125/250V DC). 1-cycle update time; unlatched, latched, pulse and KYZ operation; energy pulses
18DI: eighteen digital inputs (max. 4 modules per device)
4AI: four analog inputs, selection of: 0-20mA, 4-20mA, 0-1mA and ±1mA output; 1 cycle update time
9RO: nine form-A relays (max. 2 modules per device)

Auxiliary Power Supply

50 – 290V AC, 40*- 290V DC

* Above 60°C – min. 90 VDC

4G Cellular Modem

Includes 2^nd RS-422/485 communication port