Sices HS 315, Техническое руководство

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Technical Handbook 171
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The trip of the minimum/maximum temperature protections for the plant battery.
•
The trip of the maximum current protections (instantaneous and time dependant) for
the plant battery.
•
If the BCB is opened, the controller avoids its closure if the plant battery voltage is
above the maximum threshold or below the minimum one.
The following conditions always force the opening of the LCB circuit breaker (and avoid its
closure):
•
The trip of the minimum / maximum voltage protections on the loads (or on the
common bars), but only after the opening of both GCB and ACB circuit breakers (or
in case of opening failure). It acts as backup protection. The minimum voltage
protections in not checked if the controller is in MAN mode, to allow the charge of a
“very discharged” plant battery.
•
If the LCB is opened, the controller avoids its closure if the voltage on the common
bar is below the minimum threshold or above the maximum one.
•
The trip of the maximum current protections (instantaneous and time dependant) for
the loads.
•
The trip of the current reverse protection for the loads.
The following conditions force the opening of the ACB circuit breaker (and avoid its closure),
but only if one closure command for has been configured :
•
If the auxiliary source voltage is outside the tolerance thresholds.
•
As default, the controller is configured to not supply the loads if they are not connected
to the plant battery too (because the battery acts as a filter and stabilizes the voltage
produced by the auxiliary source). This configuration is achieved by setting the
parameter P.9653
to “0”. In this condition, if the LCB circuit breaker is closed but the
BCB circuit breaker is opened, the controller opens the ACB. This function is not
available in OFF and MAN mode.
The following conditions always force the opening of the ACB circuit breaker (and avoid its
closure):
•
The trip of the maximum current protections (instantaneous and time dependant) for
the auxiliary source.
•
The trip of the current reverse protection for the auxiliary source.
•
The trip of the maximum voltage protection for the loads (or the common bar), but only
if the auxiliary source is present.
•
The trip of the minimum voltage protection for the loads (or the common bar). This
condition is not checked if the controller is in MAN mode, to allow
the charge of a “very
discharged” plant battery.
•
If ACB is opened, when the auxiliary source voltage is outside the tolerance
thresholds.
See 9.8.3.
See 9.8.3.