PKR39809-02

Trips to Lockout

Although each protection group has its own Trips to Lockout settings, the number of trips to lockout in a single sequence can never exceed 4.

If a sequence begins when a fault causes a trip in the forward direction, it will be forward Trip 1. If after an auto reclose, another fault is detected in the reverse direction thus causing a reverse protection trip that would be Trip 1 of the reverse protection sequence.

If this pattern continues, the ACR will go to lockout after the 4th trip even if neither protection group has reached its Trips to Lockout setting.

A lockout applies to both the forward and reverse protection groups, it is not possible to have a lockout in one direction only.

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