ABB Protect IT REL 501 2.5 Series Operator's Manual page 28

Distance protection terminal

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DisturbReport

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Using the manual trigger creates an instant disturbance report. Use this function to get

a VQDSVKRW of the monitored line.

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The disturbance report has a dedicated storage memory, sufficient enough to save the

ten latest disturbances. The memory operates by the first-in – first-out principle (FIFO).

This means that when the memory is full, the oldest recorded disturbance will be delet-

ed from memory when a new disturbance occurs. After clearing, the entire disturbance

memory will be empty.

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