Branch Feeder Monitor
Fitting for both new and retrofit projects, SATEC’s Branch Feeder Monitor™, is a multi-circuit power meter, monitoring up to 18 three-phase power circuits or 54 single-phase, or any combination. The BFM-II utilizes High Accuracy Current Sensors (HACS) and is ideal for a wide range of applications, from monitoring medium-voltage substations through commercial multi-tenant billing in shopping-centers or office buildings.
It is designed for DIN-rail mounting, equipped with built-in communication ports and anti-tamper enclosures. Modular expansion allows installation of additional I/O modules and power supply.
Cost-effective: saves drastically on installation costs and space occupied by dozens of legacy meters
Multi-circuit: Modular options for multi-load metering
- up to 18 three-phase loads
- up to 54 single-phase loads
- various combinations of the two
Dual Input Voltage: 2 parallel measurements for two independent 3-phase power sources (VIM module; optional)
Revenue Meter:
- Class 0.5/0.5S accuracy per ANSI C12.20 / IEC 62053-22
- anti-tamper design
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 I/O: up to 72 digital I/O
- Analog: up to 16 inputs
Multi-option Current Inputs
- 40mA for HACS CTs (5 – 3,000A)
- 3V AC inputs for flex clamps (Rogowski coil)
Technical Specifications
Power Meter
- Power: True RMS volts, amps, power, energy, power factor, neutral current and many more
- Event and parameter data-logging
- measurement at 50/60 Hz
- Sampling frequency: 64 samples per cycle
Harmonic Analyzer
- Voltage and current THD, TDD and K-Factor,
- Voltage and current harmonic spectrum and angles, up to the 25th order harmonic
Revenue Meter
- Class 0.5S / 0.5 accuracy per IEC 62053-22 / ANSI C12.20 for active energy
- Anti-tamper design
- Bills up to 18 individual three-phase clients or 54 single-phase clients or various combinations in between
- Time-of-Use billing and logging: 8 energy/demand registers x 8 tariffs, 4 seasons x 4 types of days, 8 tariff changes per day, easy programmable tariff schedule
- Automatic 120-day daily profile for import/export energy and maximum demand readings (total and tariff registers) for each submeter
- Pulse reading via DI for water and gas meters
Variable Current Inputs
- HACS: 40mA HACS CT designated inputs (available HACS ratings: 100A-3,000A)
- RS5: inputs for specific split-core HACS CTs rated 5A
- 3V AC: inputs for Flex Clamps (Rogowski Coil)
Voltage & Power Supply
- Nominal voltage: 120/208 – 277/480V AC (L-N/L-L)
- Operating range: 70-561V AC 50/60 Hz (direct connection, L-L)
- Self-Energized from measured voltage
- Optional auxiliary power supply:
50-290V AC, 40*-290V DC
* Above 60°C – minimum 90V DC
Dual Voltage Inputs
- Voltage Input Module: a set of 3-phase voltage inputs for metering parallel power sources
- Calibrated at either 50 Hz or 60 Hz
- every submeter can be assigned to one of the measured voltages.
- rating: identical to main voltage inputs (70 – 571V AC, L-L)
Note: When the VIM module is used, the total maximum amount of 3-phase current channels is 12
Modular I/O
- Up to 72 DI
- Up to 18 DO
- 4 Analog input option
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)
- USB (Type A)
Optional:
- 4G modem
Communication Protocols
- Modbus
- ASCII
- BACnet
- DNP3.0
- IEC 60870-5-101/104
Meter Security
- 3 level password security for protecting meter setups and accumulated data from unauthorized changes
- Anti-tamper design (wiring seal)
Mounting
- DIN-rail
The BFM supports various add-on modules:
- Current inputs
- Additional voltage 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
Up to 1 CIM module per instrument when employing VIM module (below)
- 6 current input module – HACS version
- 6 current input module – RS5 version
- 6 current input module – FLEX version
- 18 current input module – HACS version
- 18 current input module – RS5 version
- 18 current input module – FLEX version
2nd Voltage Input Set (VIM)
One Voltage Input Module (VIM) per device (optional)
calibrated at either 50 Hz or 60 Hz.
Rating:
- Nominal voltage: 120/208 – 277/480V AC (L-N/L-L)
- Operating range: 70-561V AC 50/60 Hz
Digital & Analog I/O Modules
Optional I/O modules expand the BFM-II with digital inputs, analog inputs and relay outputs for pulse counting, status monitoring, alarms and control.
Available modules::
- 9DI: nine digital inputs, dry contact or 24/125/250V DC; 1-cycle update time; unlatched, latched, pulse, KYZ and energy pulse operation
- 18DI: eighteen digital inputs; up to 4 modules per device
- 4AI: four analog inputs; selectable 0–20mA, 4–20mA, 0–1mA and ±1mA ranges; 2-cycle update time
- 9RO: nine Form A relay outputs; up to 2 modules per device
Auxiliary Power Supply
Rated voltage: 50 – 290V AC, 40*- 290V DC
* Above 60°C – min. 90 VDC
4G Cellular Modem
One Voltage Input Module (VIM) per device (optional)
calibrated at either 50 Hz or 60 Hz.
Rating:
- Nominal voltage: 120/208 – 277/480V AC (L-N/L-L)
- Operating range: 70-561V AC 50/60 Hz
Downloads
BFM-II
Brochure
Datasheets
Manuals
Communication
