Blackout close
You can enable blackout auto close (
Configure > Parameters > Local power management > Blackout > Blackout close
) for multiple
SHORE connection controllers. The response to a blackout then follows the
Multiple shore connections allowed
parameter.
Table 11.11
Effect of parameter on blackout close
Selected parameter
Effect
Max. one SC may connect
One close command connects corresponding SC
The PMS closes the SCB of the SHORE connection controller with the lowest
Controller ID
.
One close command connects all SCs
The PMS closes ALL the SCBs where blackout auto close is enabled, starting
with the SHORE connection controller with the lowest
Controller ID
.
Effect of ship-to-ship
Whenever
Ship-to-ship
is active for a SHORE connection controller, then that controller is not included as one of the shore
connections.
Opening multiple shore connections
For multiple shore connections, if there is a command to open any SCB, then the PMS checks the
Multiple shore connections
parameter to determine which actions to take to open one or more shore connections.
Table 11.12
Shore connection parallel parameter effect on the breaker open sequence
Parameter setting
Controller action
Max. one SC may connect
The PMS uses gensets to de-load the corresponding SCB.
When the SCB is de-loaded, the PMS opens the SCB.
One close command connects corresponding SC
The controller opens or trips the corresponding SCB, based on
the shore connection
Breaker action
parameter setting.
One close command connects all SCs
The PMS uses gensets to de-load all the SCBs in the section.
When the SCBs are de-loaded, the PMS opens all the SCBs in
the section. There is no particular order in which the SCBs are
opened.
If an SCB trips, the other SCBs are not necessarily affected, and can remain closed.
11.4.5 Sensitive shore connection (overlap)
Some shore connections cannot tolerate running in parallel with gensets or de-loading, for example, because the shore supply is an
inverter. The sensitive shore connection function (also known as the overlap) ensures that de-loading is not attempted, and that the
relevant breaker opens in less than 100 ms.
CAUTION
If you have multiple shore connections but only one is configured as a sensitive shore connection, all connected shore
connections will open without de-loading at the same time as the senstive shore connection.
Parameters
Configure the parameters under
Configure > Parameters > Breakers > Shore connection configuration > Configuration
.
Parameter Range
Default
Notes
Overlap
Not enabled,
Enabled
Not enabled
Not enabled
: The sensitive shore connection function is not active. All controllers
use their standard breaker open sequences.
Enabled
: The sensitive shore connection function is active. The relevant breaker is
opened in less than 100 ms, and de-loading is not attempted.
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