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
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
Sent from my SM-N900T using Cruisers Sailing Forum mobile app
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
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.