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MFR300

Measurement and protection

Measuring transducer and protection device for single- and three-phase power systems.

- connect a PLC via CAN bus
- use relays to push commands and to control a breaker

Measurement

	easYprotec 1410	MFR300
Functions
3 true RMS voltage inputs
3 true RMS current inputs
Class 0.5 measurement accuracy
Configurable trip/control setpoints
Configurable delay timers for individual alarms (0.02 to 300.00 s)
4 configurable relays (change-over)	2	4
1 “Ready for operation” relay
Switchable relay logic
2 kWh counters (max. 1012 kWh)
2 kvarh counters (max. 1012 kvarh)
CANopen / Modbus communication
Configurable via CAN bus / RS-485 / Service Port (USB/RS-232)
Configurable via Service Port (USB / RS-232)

Protection
Over-/undervoltage (59/27)
Over-/underfrequency (81O/U)
Voltage asymmetry (47)
Overload (32)
Positive/negative load (32R/F)
Unbalanced load (46)
Phase shift (78)
Overcurrent (50/51)
df/dt (ROCOF)
Ground fault
QV monitoring
Voltage increase
Freely configurable time-dependent undervoltage monitoring for: FRT (fault ride-through)

MFR 300 product specification

MFR-300 Multifunction Relay / Measuring Transducer with CANopen / Modbus Communication

The MFR 300 is a measuring transducer for monitoring single- and three-phase power systems. The MFR 300 has both voltage and current inputs for measuring an electrical power source. A digital processor makes it possible to accurately to measure true RMS values, regardless of harmonics, transients or disturbing pulses. The primary measured and calculated values are transmitted via CANopen / Modbus protocol to a supervisory control system.
The MFR 300 performs monitoring functions for mains decoupling, including four freely configurable time-dependent undervoltage monitoring functions for FRT (fault ride-through).
The primary measured values of voltage and current are used to calculate the real, reactive, and apparent power and the power factor (cosphi) values.

Accessories

Configuration Software

Toolkit

configuration via Woodward’s standard Software Toolkit.

Toolkit download

USB

USB configuration interface

USB port configuration interface. The PC/laptop side is seperated from the Woodward unit side through galvanic isolation.

part number: 5417-1251

English