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Type KS Out-of-Step Blocking Relay

The KS relay is a polyphase compensator distance type relay used with the type KD distance relay to prevent tripping while out-of-step or out-of-synchronism conditions exist on the system. It does not prevent or delay the type KD relay from tripping on phase-to-phase faults within its protective zone that occur during the out-of-step condition.
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    ABB contact for United States of America

    Sales: Pete Kovacic
    Service: Glenn Goldfarb
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