Hi,
Hope you’re well. Currently an electrical cadet on a product tanker.
We are having an issue onboard with one of our generators. The generator will take load, delivering the same power (KW) as the other generators in parallel, but the current tends to be roughly half of that as the other generators.
When the other generators go offline and the faulty one is running on its own we get a low voltage alarm followed by a blackout.
We have swapped the governor from one of the working generators onto the faulty one but did not solve the issue. While it was swapped we tested both generators under load and the governor of the faulty generator worked fine on the other generator.
I Believe it to be the AVR but the technician onboard seems to disagree. We have swapped the AVR with one from the spare parts bin ( used ) and still getting the same issue.
The generator first blacked out approx one month ago, during rough sea conditions.
Marine based system using Aconis-2000 PMS.
Both generators have set output of 450V 60hz
Trips approx 10 seconds after other generator goes offline.
Volt low trip - 95% - 10 seconds
Volt low low trip - 85% - 1 second
Any help or guidance greatly appreciated.
Thanks
Hope you’re well. Currently an electrical cadet on a product tanker.
We are having an issue onboard with one of our generators. The generator will take load, delivering the same power (KW) as the other generators in parallel, but the current tends to be roughly half of that as the other generators.
When the other generators go offline and the faulty one is running on its own we get a low voltage alarm followed by a blackout.
We have swapped the governor from one of the working generators onto the faulty one but did not solve the issue. While it was swapped we tested both generators under load and the governor of the faulty generator worked fine on the other generator.
I Believe it to be the AVR but the technician onboard seems to disagree. We have swapped the AVR with one from the spare parts bin ( used ) and still getting the same issue.
The generator first blacked out approx one month ago, during rough sea conditions.
Marine based system using Aconis-2000 PMS.
Both generators have set output of 450V 60hz
Trips approx 10 seconds after other generator goes offline.
Volt low trip - 95% - 10 seconds
Volt low low trip - 85% - 1 second
Any help or guidance greatly appreciated.
Thanks