Most cruising boats in the US are wired with 120V AC for things like water heaters, air conditioners, refrigerators, and electrical outlets for all the stuff we bring from shore (blenders, table top ice makers, etc...).
We are typically ALSO wired with 12V DC for things like lights, radios, instrumentes, etc.
From your original post, it sounded like you were confusing the AC/DC separation.
It's fine to run AC appliances off 120V AC. It would be challenging to find a motor configuration for your boat that would work well with 120V AC - most electric boats work off DC.
By the same token, you generally cannot power typical 120V AC appliances directly from a string of DC batteries, even if the battery string adds up to 120V DC.
You CAN have one huge battery bank, and run inverters to get the 120VAC, while using the DC battery to power traction motors. If you use a 48 or even 72V DC battery bank, you can use regulators for the 12V DC circuits (lights, instruments, pumps, etc.). Though most people prefer to use separate battery banks for motor vs. house.
John
On Monday, December 2, 2024 at 09:17:05 AM CST, Newt via groups.io <mrkgillis=gmail.com@groups.io> wrote:
Thank you for your replies. I understand the relationship between battery motor and generator. Getting back to my question. Why would it be harmful to wire the boat with 120 ac? What disadvantages over 12v dc? The traction motor and relationship with generator are a different issue.
No comments:
Post a Comment