7.3 Trip circuit supervision 7 Application Technical description
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Figure 7.3.1-1 Trip circuit supervision using a single digital input and an
external resistor R. The circuit-breaker is in the closed position. The
supervised circuitry in this CB position is double-lined. The digital input is
in active state when the trip circuit is complete.
Figure 7.3.1-2 Trip circuit supervision using a single digital input, when the
circuit breaker is in open position.
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