The alarm is always
Enabled
and
Latched
when both breaker feedback functions are configured for the breaker. The alarm action is
Warning
for external breakers and
Block
for all other breakers.
Table 5.33
Default parameters
Parameter
Range
Default
Delay
0.1 to 5.0 s
1.0 s
INFO
If only one or no breaker feedbacks are configured in the
Input/output
for the breaker, then the parameters are not visible.
All controllers in section under switchboard control
If the
Breaker position failure
alarm is activated, the controller cannot be sure whether the breaker is open or closed. The power
management system therefore forces all the controllers in the section under switchboard control. The controllers remain under
switchboard control until the position failure is fixed.
5.5.7 Breaker trip (external)
This alarm alerts the operator to an externally-initiated breaker trip.
The alarm is activated if the controller did not send an open signal, but the breaker feedback
shows that the breaker is open.
Closed
Open
Breaker
Time
Delay
Configure the parameters under
Configure > Parameters > Breakers > [Breaker] monitoring > Tripped (external)
.
For the tie breaker, the alarm action is always
Trip tie breaker
and
Latched
. For all other breakers, the alarm action is always
Block
and
Latched
.
The delay is always 0.1 s.
Table 5.34
Default parameters
Parameter
Range
Default
Enable
Not enabled, Enabled
Enabled
Inhibit
Controller under SWBD control
5.5.8 Breaker short circuit
The alarm response is based on the digital input with the
Breaker > Feedback > [*B] short
circuit
function (see below). This digital input is typically wired to the breaker's short circuit
feedback.
0
1
Breaker >
Feedback >
Short circuit
Time
Configure the parameters under
Configure > Parameters > Breakers > [Breaker] monitoring > Short circuit
. The alarm action is
Trip [Breaker]
.
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