(1) While only the R.S.T power is on, the red lamp will illuminate to indicate normal conditions, and the green lamp will illuminate for Negative Sequence.
(2) When normal, the red lamp is on and the corresponding relay turns ON.
If it is in negative sequence, the green lamp is on and the corresponding relay is turned ON.
(3) For circuit breaker, green lamp is on and the corresponding relay is turned ON
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