The voltage supervision relay MRU3-1 protects electrical power generators, consumers or operating components generally against over- or under-voltages. Among other applications the relay can be used for detection of over- or undervoltages in power genrating plants and energy supply systems to protect generators against critical overvoltages in case of defective voltage regulators as undervoltage protection for motors as generator stator earth fault protection as over- and undervoltage protection with evaluating the symmetrical components (MRU1-2, detailed information on this type can be found in the relevant technical description) There is also a similar protection relay IRU1 avail-able in a more simpler design, i.e. with less function, without display and without serial interface.
FEATURES & FUNCTIONALITY
The voltage supervision relay MRU3-1 protects electrical power generators, consumers or operating components generally against over- or under-voltages. Among other applications the relay can be used for detection of over- or undervoltages in power genrating plants and energy supply systems to protect generators against critical overvoltages in case of defective voltage regulators as undervoltage protection for motors as generator stator earth fault protection as over- and undervoltage protection with evaluating the symmetrical components (MRU1-2, detailed information on this type can be found in the relevant technical description) There is also a similar protection relay IRU1 avail-able in a more simpler design, i.e. with less function, without display and without serial interface.