Please read carefully my replies. I wish you good luck with AI, it’s way to technical. 
I already mentîoned that English is not my 1st language, not even my 2nd.
The ram refers either to one piston side or to the single forged piece.
Please check page 3 of the Kawasaki document partially posted by KPChief where the FE Type is referred to as “2 Rams 4 Cyl.”. MacGregor also uses the same terminology. There are lots of other examples.
Both definitions are used, that’s why I edited my message, I also mentioned it.
When mentioning the S1 rating I was referring to the main pump motors of a ram-type hydraulic steering gear, those are typically rated S6 25 % or S6 30%. The motors are not manufactured specifically as S6 25 % rated motor, you just rate a motor according to specific conditions. You can get a given motor or generator and request an application-specific rating plate which corresponds to non-standard conditions, for example 31 °C cooling air temperature at an altitude of 2143 m. The motor remains the same as in the catalog.
Some rating corrections are published by the manufacturer or are parts of standards, others need to be established by the manufacturer.
SIL 3 is extremely common for a reduced set of saftey functions or even a single safety function, e.g. many emergency stops and also some burner control functions require SIL 3.
Somewhat less common but still very widespread are SIL 3 automation systems, mostly based on safety PLC’s. In-between you find safety relays. You can design simple SIL 3 controls electromechanically but you’ll spend a lot of time to document its conformity. In some cases you can also go the PL way instead of SIL.
Very rare is SIL 4, it’s mosty for emergency shut downs in the process industry and unlike SIL 3 it’s not handled by programmable control systems. Only a very few companies manufacture components for “true” SIL 4 safety controls.
Somewhere I inadvertently wrote 2-poles instead of 4-poles but I’ll let everyone read my posts and decide if I don’t know the difference or if it was an inattention.
The DG’s of the M/S Dali are 720 RPM 60 Hz (not just a guess) and the EDG is obviously a 4-stroke 1800 RPM diesel engine.
kVA (and not KVA as you wrote but don’t worry you even find it as typo in some classification society rules) and kW get often confused, the reason I mentioned it is because of possible discrepancies between the NTSB PR and the ClassNK data.
An BTW, the small servo pumps (auxiliary pumps) are shown in the PDF excerpt posted by KPChief above.
Also your quotes are misleading, just quoting “A 16 A socket can be fed directly from a 10’000 A busbar,” is tendencious as it looks totally wrong though it’s fully correct.
For example in true MCC’s with withdrawable modules you can have maybe 630 A modules as well as modules for 0.37 kW motors or a 6 A breaker for a busbar voltage monitoring circuit.
The “total generating capacity of just 2000 kW” you (retdmarineengineer) mention (let’s suppose you mean the diesel engine power, not the generator ratings in kVA) is pointless in this discussion, it’s not even 1/8 of M/S Dali’s power generation capability (beyond 16 MVA).
With only 2000 kVA you usually don’t need High Voltage.
440 V Low Voltage and 6600 V High Voltage are two totally different things, if you don’t know High Voltage well, don’t try to extrapolate your Low Voltage knowledge, HV is another dimension, the slightest mistake will probably kill you, with Low Voltage most accidents are not lethal.
And yes, the generators discussed here cannot provide high short circuit currents. I let you (retdmarineengineer) do the math.
LV BUS busbars are often so tightly sized that a lot of energy ends wasted in heat. Several percents of the produced electrical energy ist lost by Joule heating of the bus bars and cables.
Add around 1 or 2 tons of copper and you can save maybe 1 % of fuel used by the DG’s.
Maybe I’ll reply later about softstarter, DOL and motor protection. In some cases DOL is required by some supplier (e.g. MAN B&W) for specific motors. You’ll have to comply even if you’d have rather installed a softstarter, there as good reasons why DOL is sometimes the only option…
Hopefully someone who really knows can tell me where I was wrong, I always try to be accurate about technical details.
I won’t start any personal rant but denigrating someone instead of constructively discuss the points you (retdmarineengineer) consider as wrong is not that great.
Now I’m done, I won’t even check this post for typos and style.
