Monitoring voltage relay HRN-54

• SERVES TO MONITOR VOLTAGE , PHASE FAILURE AND SEQUENCE IN SWITCHBOARDS, PROTECTION OF DEVICES
• SERVES TO MONITOR VOLTAGE , PHASE FAILURE AND SEQUENCE IN SWITCHBOARDS.
• SUPPLY IS DONE FROM MONITORED VOLTAGE.
• FIXED T1(500MS) AND ADJUSTABLE T2 (0.1 – 10 S) DELAY TO ELIMINATE SHORT VOLTAGE DROPS AND PEAK.
• IN CASE SUPPLY VOLTAGE FALLS BELOW 60 %UN (UOFF LOWER LEVEL)RELAY IMMEDIATELY BREAKS WITH NO DELAY
• IT IS POSSIBLE TO SET UPPER AND LOWER LEVEL OF MONITORING VOLTAGE.
• MONITORING VOLTAGE RELAY IN 2 VARIANTS:

        HRN-54: SUPPLY FROM ALL PHASES WHICH MEANS THAT RELAY IS FUNCTIONAL ALSO IN CASE WHEN ONE                PHASE IS FAULTY
        HRN-54N: SUPPLY L1-N, MEANS THAT RELAY MONITORS ALSO FAILURE OF NEUTRAL WIRE

• FAULTY STATE IS INDICATED BY RED LED AND BY BREAKING OUTPUT RELAY CONTACT.