Parameter
Range
Default
Notes
SHORE connection controllers to connect all the required shore
connections.
One close command connects all SCs
: When there is a close command
for an SCB, the PMS closes ALL the SCBs in the section, starting with the
SHORE connection controller that was given the close command. If an SCB
cannot close, then the PMS stops trying to close that SCB. The PMS then
tries to close the next SCB.
Connecting additional shore connections
The sequence for connecting to the first shore connection in a section is shown in the
Shore connection breaker close flowchart
.
The PMS uses
Dynamic synchronisation
to connect to the first shore connection.
The sequence for connecting additional shore connections in a section is shown in the following flowchart.
The controller uses the
Static synchronisation
parameters for connecting additional shore connections. If the additional shore
connection is from a different source, then static synchronisation is impossible, and the controller does not close the breaker.
Flowchart for connecting an additional shore connection
SCB+ close
command
Close SCB+
SCB+ closed
SCB+ closed
No
Yes
Close
conditions
OK
No
Yes
SC+
V & Hz
OK
No
Yes
Synchronised
No
Yes
Info message
Info message
Info message
Alarm
1.
SCB+ close command:
The additional shore connection breaker (SCB+) close
command can come from the following:
•
The operator can press the push-button
Close breaker
on the display unit.
•
The operator can use PICUS to send a close breaker command.
•
The command can come from an external source.
2.
Close conditions OK:
The controller checks that the close conditions are okay:
•
The SHORE connection controller is not under switchboard control.
•
Multiple shore connections are allowed.
3.
SC+ V&Hz OK:
The controller checks that the voltage and frequency from the
additional shore connection are within range. If not, the controller display unit
shows an info message and the sequence stops.
4.
Synchronised:
The controller checks whether the additional shore connection is
synchronised with the ship busbar. If not, the display unit shows an info message
and the sequence stops.
5.
Close SCB+:
When all the conditions are met, the controller activates the
Breakers > Shore connection breaker > Control > SCB close
output to close the
breaker.
6.
SCB+ closed:
The controller checks whether the additional SCB has closed.
•
If the SCB is closed, the additional SCB close sequence has been completed
successfully.
•
If the SCB is not closed, the
SCB close failure
alarm is activated.
DESIGNER'S HANDBOOK 4189340911K UK
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