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iamrobinson

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Posts: 8
Reply with quote  #1 
Thank you in advance for any relevant reply's  to this tread.

Location: USA

Would like Unit to support 48 Battery Strings, Output  240V 60 amps:
The controller / inverter would have local and/or remote monitoring capabilities


Example Loads:
110v or 240v Window A/C
240v 1hp Well - RLA 30A.
110v  or 220v Water Heater
220v Welder
110v Table Saw
Various Lighting

Rick H Parker

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Posts: 785
Reply with quote  #2 
Would like Unit to support 48 Battery Strings, Output  240V 60 amps:

240V * 60A = 14.4 kW.

Example Loads:
110v or 240v Window A/C
SLP and (RLP or RLA)?

240v 1hp Well - RLA 30A.
SLP or SLA.

110v  or 220v Water Heater
RLP or RLA?

220v Welder
RLP or RLA?

110v Table Saw
(SLP or SLA) and (RLP or RLA), under cutting load.

Various Lighting
RLP?


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Rick H Parker
Kansas, USA
Electronics Engineering Technologist
iamrobinson

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Posts: 8
Reply with quote  #3 
Thank you for the reply, If I understand you reply you are making comment about the "example loads" and thank you for those comments. However,

What Manufacture or Distributor has a solar Charger combined with a Solar Inverter unit that supports  48 v battery string, has an output of 240v and can handle up to 60 amps and has local and or remote monitoring capabilities?


Thanks again for the reply
stmbtwle

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Posts: 2,823
Reply with quote  #4 
Seems to me you're asking for two different parameters. Charge controllers are generally rated in amps; a 60a controller at 48 volts is only 2880 watts, not all that much.

Inverters are usually rated in watts, and an inverter that could deliver 60 amps @ 240v would be 14400 watts.

That's a BIG difference, and I don't know if anyone even makes such a beast. You might want separate units.

These folks might be able to help: https://www.solar-electric.com

What is it you're trying to do?

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Willie, Tampa Bay
iamrobinson

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Posts: 8
Reply with quote  #5 
From what I can find so far you are correct, I am mixing components.

I don't use the correct terminology yet, newbie. To cut down on the equipment's foot print I am looking to combine the inverter and charger if possible.

The Charger would support a 48 volt battery plant. My understanding 48v system has less power loss in components and components run dramatically cooler than 24v or 12 systems; in all the 48v system is more efficient when considering the Panels to support the battery system.

Inverter ( Pure Sine Wave) is to support a electronic that are sensitive to modified sine wave. Amperage requirement is enough to support RLA (Running Load Amps) of 30amps for a well and or a small window unit running in Cool only.  I haven't been able to capture the LRA ("lock rotor amp"- amps to get the motor started) for the well motor. 60 amp is a wish or like to have spec..

This system is going into a 16 x 12 x 12 Storage / Utility / Workshop Building generating Solar Power and Solar Hot Water - Ultimately an off-grid Power House to support future site buildings.

I look forward to any suggestions or constructive comments.

Have a fine day,

Jack
Rick H Parker

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Posts: 785
Reply with quote  #6 
Thank you for the reply, If I understand you reply you are making comment about the "example loads" and thank you for those comments.

Not comments .. questions. 
SLA? = Starting Load Amps?
SLP? = Starting Load Power?
RLA? = Running Load Amps?
RLP? = Running Load Power?



To cut down on the equipment's foot print I am looking to combine the inverter and charger if possible.

A hybrid inverter.  For 14.4kW three stackable 5000W units would get you 15kW

Inverter ( Pure Sine Wave) is to support a electronic that are sensitive to modified sine wave.

Electric motors can get fussy about the waveform. For electric motors PSW ( Pure Sine Wave) is the way to go.

The Charger would support a 48 volt battery plant.

Less loss then a 36V, 24v or 12v battery banks, also better current capacity because the discharge currents are lower. But more loss and less capacity  then higher voltage battery banks. You can get inverter/charge controllers for battery banks that run in the hundreds of volts.


We have people from all over the globe. It helps when other's know where you are, that is why many of us put our location in our signature line



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Rick H Parker
Kansas, USA
Electronics Engineering Technologist
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