MFR 3 Series

Woodward’s MFR 3 Series Multifunction Relays

 
The MFR 3 Series multifunction relays offer a comprehensive package of industrial grade protection and power management features. These devices were designed for generators and switchgear equipment that require independent protection, whether in isolated operation or in parallel with the utility.

Closed PID control loops, by analog or discrete bias outputs, offer control of voltage, frequency, active and reactive power. The MFR 3 Series can be remote controlled via interface and digital inputs. Analog inputs, metering features via interface, and analog outputs complement the MFR 3 Series.

Features include: 

• Front Panel with dedicated push buttons and a clear readable 2-Line LCD Display and embedded synchronoscope
• True RMS sensing for generator protection and mains monitoring features
• Synchronization including breaker monitoring
• Automatic load transfer schemes such as open and closed transition, soft loading
• Mains export/import control
• Active and re-active power load sharing for up to 14 participants by CAN bus communication
• Counters for kWh, kvarh, engine starts, operating hours, maintenance call
• Freely configurable discrete and analog inputs/outputs
• CAN bus based communication
• Password protection

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