Electrical overload at bow area
Electrical overload at bow area
(OP)
Hi,
I build yachts and in this industry there tends to be lots of additional demands on equipment with reduction in power supply. I'm using limited 8D and 4D AGM batteries for engine, house and generator but I can't figure out how to keep the bow thruster, anchor windlass and down to something below 4/0 wire size. Often my calculations show an overload.
Theoretically the engines should be connected to its own battery, but will it have serious implications if I connect another equipment with a moderately large load to the engine battery as well? The total load does not exceed requirements.
I need advice.
I build yachts and in this industry there tends to be lots of additional demands on equipment with reduction in power supply. I'm using limited 8D and 4D AGM batteries for engine, house and generator but I can't figure out how to keep the bow thruster, anchor windlass and down to something below 4/0 wire size. Often my calculations show an overload.
Theoretically the engines should be connected to its own battery, but will it have serious implications if I connect another equipment with a moderately large load to the engine battery as well? The total load does not exceed requirements.
I need advice.





RE: Electrical overload at bow area
Could there be serious implications NOT separating the starting batteries... YES, you may not get the engine(s) started!
The way I have set up several different boats (yachts, a tug, 2 fishing boats 30+ ft, etc,) was to have 2 separate generating (charging) systems, 1 for the starting batteries, the other for the rest of the equipment. But with a tie to the starting batteries to the communications equipment, just in case.
RE: Electrical overload at bow area
I do have a sizeable generator and efficient battery charger though and it will most probably keep the batteries charged and in good shape.
Then again, I might look into it deeper - I haven't launched the boat yet.
RE: Electrical overload at bow area
Best Regards
Angel
RE: Electrical overload at bow area
I've been advised against parallel switching. I'm wondering if it's possible to stagger or sequence the starting, so it doesn't overload at once. What kind of circuitry will that require?
RE: Electrical overload at bow area
RE: Electrical overload at bow area
Not to mention I have my fresh water tanks at the forward section. It is very damp.
Actually, I deal directly with Sleipner but the Norwegians don't seem to be able to help with our own internal circuitry. They are good with their products though.
All my boats have ELCB and GFCI.
RE: Electrical overload at bow area
RE: Electrical overload at bow area
The switching for the winch controls were wired into a solonid ~ triggered fron engine oil pressure. which in effect would not allow the winch to be opperated unless the engine was running. Hence avoiding the unforunate situation of running the batterys low and all the other problems arrising from this condition.