5kw portable system possible?

D

Dill

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Hi all, I'm interested in building a portable power system.

Currently have this inverter and battery which is a 5kw inverter and 48v lithium battery. I was thinking of placing the battery in a server cabinet and mounting the inverter on the top of the cabinet.

These are similar systems that I would like to build it like
solarwarehousesa.com

Ecco 5500VA / 5500W Solar Ready Hybrid Inverter Trolley 5.12 KWh Lithi

The perfect solution for load shedding! The all-in-one portable plug & play inverter battery trolley system (Heavy Duty Inverter Trolley) Easy portable compact unit with lock wheels as well as handles to carry the system. PLEASE NOTE TROLLEYS TAKE 2-3 HOURS TO ASSEMBLE What is an all-in-one...
solarwarehousesa.com solarwarehousesa.com

I was advised by an electrician that if I'm are going to make a mobile system, I would need to remember the limitations of the cables. So a 16a extension can only handle a max of 3600w before it melts and for safety reasons, I would need to limit the output to around 3000w max, is order to not melt or set fire to the cables.

Any advise on how I go about building a similar system to the linked systems taking the above into account.
 
well the limitation is 16A per plug so having more than one connection you could utilise the 5kw no problem
you could even if you have a single device that has to use 5kw just power it by letting it connect with 2 x 16A plugs
as long as you use at least a 2.5MM cable

the cable wont melt the plug will melt if you exceed 16A, home electrics uses a 2.5mm cable to supply more than one plug with a 16A connection some electricians in certain scenarios will put a 25A breaker (normally 20A) on a 2.5mm cable naturally if you will be pulling the 5kw for extended periods i would go 4mm cable, if 5kw will be short stints 2.5mm should be ok

he was giving warnings not advice
 
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leon.davibe said:
well the limitation is 16A per plug so having more than one connection you could utilise the 5kw no problem
you could even if you have a single device that has to use 5kw just power it by letting it connect with 2 x 16A plugs
as long as you use at least a 2.5MM cable

the cable wont melt the plug will melt if you exceed 16A, home electrics uses a 2.5mm cable to supply more than one plug with a 16A connection some electricians in certain scenarios will put a 25A breaker (normally 20A) on a 2.5mm cable naturally if you will be pulling the 5kw for extended periods i would go 4mm cable, if 5kw will be short stints 2.5mm should be ok

he was giving warnings not advice
Click to expand...
How would I go about charging the battery for this system? Wouldn't a 16A plug be used to charge it?
 
Watch for over heating on your inverter. Run a fan or two.
 
Just sell it and buy a Nava Solar or similar unit.

Much less hassle.

Ironically Mecer used to sell exactly this hardware already boxed.
 
Dill said:
How would I go about charging the battery for this system? Wouldn't a 16A plug be used to charge it?
Click to expand...
Yes all you have to do is set the charging amps to fit the 16A no more than 70A. Ie 16*220 =3520w. Then 3520/50 = 70 A yea with liossses maybe 60A charging better idea

And then make sure overload bypass is disabled ie if the load exceeds 5000w the inverter does not switch to Eskom just powers down on overload
 
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Just do a proper job and you won't have issues.
So make sure you add a small DB that will trip to protect the wiring in case of over current, double insulate all wire/electrical equipment etc.
 
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