Originally Posted by
Self loading bear
Propulsion is diesel-electric which means that all engine-generators are kept at same revolutions and share their power on a common bus.
When one engine breaks down, the others can get overloaded if users other than propulsion are not switched-off quickly enough (automatic).
overloaded engines fall down in revolutions and are shut-off the common bus automatically.
Admittedly I know nothing about marine diesel-electric propulsion systems, but surely loss of one engine, even if it led to cascading trip off-line for the other overloaded engines would still leave you three running engines that can be brought back on-line fairly sharpish with reduced load.
And I'd have thought that for such a critical function there would be automatic load shedding for non-critical feeders anyway.