need to solve voltage drop over long run

[dedwrinkle]

Ok so at some point I'm going to need to run another leg, until then. I have a main panel, 230v 80ft run to a we'll & pump, then a 900 ft run up to water tank and a pressure pump with another panel. Then a 120v leg off that that I want to plug an RV to. All 10 gauge 30 amps. With such a long run I have to much voltage drop for the 120 leg. Was thinking of a buck boost on the 120 leg but worried about to much voltage. Would a buck boost with a regulater work?

 

[Megawatt]

so the way I understand it I don't need a second sub panel I need to redo the first one. So I can add a separate breaker for it.

Yes but what do you mean about redoing the first sub panel.

 

[dedwrinkle]

Yes but what do you mean about redoing the first sub panel.

it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel
[automerge]1592929832[/automerge]

it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel

That didn't make sense. It has a 4:15 amp breaker block and that's all there room there's room for. So I would just need another panel with more space to add another breaker is what I understand it would be the same thing as getting another panel and adding a breaker

 

[Megawatt]

it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel
[automerge]1592929832[/automerge]

That didn't make sense. It has a 4:15 amp breaker block and that's all there room there's room for. So I would just need another panel with more space to add another breaker is what I understand it would be the same thing as getting another panel and adding a breaker

Yes it would probably be a good idea to change the panel that has like 12 or 16 circuits NEMA 3 panel which means outdoor approved

 

[dedwrinkle]

Yes it would probably be a good idea to change the panel that has like 12 or 16 circuits NEMA 3 panel which means outdoor approved

Thanks for the information!

 

[marconi]

An idea for you. Instead of running in a very long thicker cable to solve the voltage drop and power delivery problem, what about installing a Solar PV, battery and hybrid charger-inverter system at the location 800ft from the mains intake? See my outline sketch attached. Your required voltage, frequency and power is generated locally ie: at the 800ft location. The long run remains and is only used to charge the battery when solar alone is insufficient . The sizing of the solar panels and battery system depends on the power you require and the daily energy consumption and load profile of the pump(s) and RV etcetera. The battery charging scheme is over say 24 hours so can be at a lower current so less voltage drop. The high power/current requirement is satisfied by the inverter and battery. Solar PV of course will allow you to economise on your mains electricity bill. Voltage drop is now only a problem between the inverter and its loads (100ft?).

B = battery I = Inverter P = PV panels C= Charger