IRV Directional Overcurrent Relay for Phase Protection

These relays are phase directional overcurrent relays which are used for the protection of transmission lines and feeder circuits. Both the time-overcurrent and instantaneous overcurrent units are directionally controlled.


Time Delay Characteristics
IRV - 2Short Time
IRV - 5Long Time
IRV - 6Definite Time
IRV - 7Moderately Inverse Time
IRV - 8Inverse Time
IRV - 9Very Inverse Time
IRV - 11Extremely Inverse Time

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    ABB contact for United States of America

    Sales: Pete Kovacic
    Service: Glenn Goldfarb
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