Quote:
Originally Posted by leftbrainstuff
That's quite a beast. Similar and much larger navy damage control pumps are all mechanically driven for reliability and portability. I couldnt follow the link. I assume its powered from a mains AC supply.
2.2kW will overwhelm your average cruising yacht inverter. That is also quite a load for the average genset.
What size inverter, battery bank and genset are you using?
We certainly couldn't run that pump with our 2500W inverter, 675Ahr battery bank or 1cyl 6kW genset with a 130A 12V alternator.
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Yes, this is not a solution for everyone.
Every
power source has certain pluses and minuses, and certain risks that it won't
work when you need it. You might not be able to start the
engine of an engine-driven
pump; you might not be able to get
electrical power into an
electric one.
Our particular
boat, which may be different from others, has a robust AC power supply which can power that beast fairly easily. The
generator is a 6.5kW Kohler 3-cylinder heavy duty one. Actually a derated 8kW
generator with a 1000cc
Yanmar engine. It won't even notice a 2.2kW load. It will put out 6.5kW 24/7/365 -- literally, as it's rated as prime power -- for continuous duty at 100% rated capacity.
That's what my
money is on if the chips are down. It lives high above the waterline and would not get swamped until the
boat is already basically sunk.
I could also power it from the inverter (3000 watts, from a 420 amp/hours @ 24v battery bank or from the 2.5kW
school bus alt on the main engine).
For my particular system, that seems a better bet then an engine-powered one.
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