Output Options
The following illustration below depicts two main generating sets and one stand by generating set which can be arranged in multiple configurations to suit the vessels application requirements.
Auto Stand By
In this application each generating set is sized to carry the full electrical load of the vessel. Each generating is arranged for automatic stand by to each other with their outputs controlled through a change over contactor. Failure of the selected running generator set would automatically initiate the starting of the second generating set which when running, would take over the electrical load.
The electrical load black out would be milliseconds should the change over be controlled by a pre-alarm on the running generating set or initiated by the operator.
In this application the use of a stand by emergency / essential services set may be obviated. However, if the machinery has to built to classification, the relevant classification society rules will dictate the final requirement that will need to be met.
| DI09 074M 04-01A | DI09 074M 04-01B | DI09 074M 04-02 | DI09 074M 04-03 | DI09 074M 04-04 |
Auto Stand By | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI13 074M 04-04 | DI13 074M 04-05 | DI13 074M 04-01 | DI13 074M 04-02 | DI13 074M 04-03 |
Auto Stand By | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI16 074M 04-01 | DI16 074M 04-02 | DI16 074M 04-03 | DI16 074M 04-04 | DI16 090M 04-45 |
Auto Stand By | Opt. | Opt. | Opt. | Opt. | Opt. |
n/a = not applicable/available.
Auto Stand By With Parallel Operation
In this application the arrangement is the same as Auto Stand By (above) but the change over contactor is replaced by independent contactors or motorised circuit breakers. In the event of sudden failure of the running generator set the operation procedure would also be the same as Auto Stand By. However, under controlled shutdown of the running generator the second generating set could be run up either manually or automatically and paralleled with the with the outgoing generating set enabling a smooth take over of the load before the outgoing set is shut down.
| DI09 074M 04-01A | DI09 074M 04-01B | DI09 074M 04-02 | DI09 074M 04-03 | DI09 074M 04-04 |
Auto Stand By with
Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI13 074M 04-04 | DI13 074M 04-05 | DI13 074M 04-01 | DI13 074M 04-02 | DI13 074M 04-03 |
Auto Stand By with
Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI16 074M 04-01 | DI16 074M 04-02 | DI16 074M 04-03 | DI16 074M 04-04 | DI16 090M 04-45 |
Auto Stand By with
Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
n/a = not applicable/available.
Full Parallel Operation
In this application both generating sets power the load either continuously or dependent upon demand, the arrangement can be manually or automatically operated. It is common for the vessels switchboard to incorporate a load shedding arrangement so that in the event of a failure of one of the main generating sets that all essential services loads would be maintained by the other generating set.
In this arrangement the installation of an emergency / essential services generating is set is recommended.
| DI09 074M 04-01A | DI09 074M 04-01B | DI09 074M 04-02 | DI09 074M 04-03 | DI09 074M 04-04 |
Full Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI13 074M 04-04 | DI13 074M 04-05 | DI13 074M 04-01 | DI13 074M 04-02 | DI13 074M 04-03 |
Full Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
| | | | | |
| DI16 074M 04-01 | DI16 074M 04-02 | DI16 074M 04-03 | DI16 074M 04-04 | DI16 090M 04-45 |
Full Parallel Operation | Opt. | Opt. | Opt. | Opt. | Opt. |
n/a = not applicable/available.
Bespoke Arrangements
The above options can be modified and adjusted for bespoke vessel operational needs. There may be more or less generating sets (than depicted above) to suit these needs with bespoke control, appropriate for the final arrangement.
Many requirements are dictated by any relevant classification society class rules which are set to ensure the safety of both the crew and the vessel. These rules will embody SOLAS (Safety Of Life At Sea) as issued by the IMO (International Maritime Organisation).