5-144 B30 Bus Differential System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
the same overall general concept except that it provides re-tripping of each single pole of the protected breaker. The
approach shown in the following single pole tripping diagram uses the initiating information to determine which pole is
supposed to trip. The logic is segregated on a per-pole basis. The overcurrent detectors have ganged settings. This
setting is valid only for single-pole breaker failure schemes.
Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command should be
given via output operand
BKR FAIL 1 TRIP OP.
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