Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 16 replies
  • Subscribers 32 subscribers
  • Views 1978 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Inverters?

Tomgunn
Happy Easter to all! ?


My friend's escaped Ewell, due to where we are today, and staying on his narrow boat he's owned for decades and is spending most of his time, apart from the beer, doing lot's of repairs.


Now, what's missing from his ship is... a washing machine. The thing is, the power supply, to that area of narrow boat ships', is somewhat low so, I suggested about an 'inverter'. He said that some of those ships have installed 'inverters' BUT, they have to have lot's of heavy duty batteries.


Can an inverter be run off of the mains'?  I guess that that may be a stupid question as the inverters' that I have run off of my car battery supplying 240v so, I KNOW how amazing you lot are and the wealth, (grovel, grovel), of information is unrivaled! 


So... he want's a 3K washing machine... can an inverter be worked, without lot's of batteries, to run this?


Thanks...


regards too, Tom


Parents
  • 0

    Tomgunn:

    Happy Easter to all! ?

    Can an inverter be run off of the mains'?



    Why would you want to?

     So... he want's a 3K washing machine... can an inverter be worked, without lot's of batteries, to run this?


    You can run a whole submarine off batteries, so anything is possible.


    A 3 kW machine clearly isn't going to pull that amount of power for long - just while heating the water. Let's assume 1 kWh for a load. Roughly 4 A at mains voltage which (ignoring inefficiencies in the inverter) is equivalent to 80 A at 12 V. So yes, a couple of large car batteries would be plenty.


    In fact you would want boat batteries 'cos they are more suited to the type of charge/discharge cycle. It might be that you would need more batteries to give a peak load of 3 kW, but you wouldn't need "lots" of them.

Reply
  • 0

    Tomgunn:

    Happy Easter to all! ?

    Can an inverter be run off of the mains'?



    Why would you want to?

     So... he want's a 3K washing machine... can an inverter be worked, without lot's of batteries, to run this?


    You can run a whole submarine off batteries, so anything is possible.


    A 3 kW machine clearly isn't going to pull that amount of power for long - just while heating the water. Let's assume 1 kWh for a load. Roughly 4 A at mains voltage which (ignoring inefficiencies in the inverter) is equivalent to 80 A at 12 V. So yes, a couple of large car batteries would be plenty.


    In fact you would want boat batteries 'cos they are more suited to the type of charge/discharge cycle. It might be that you would need more batteries to give a peak load of 3 kW, but you wouldn't need "lots" of them.

Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines