A #1 copper or 1/0 aluminium conductor will limit the voltage drop to 3% or less when supplying 100 amps for 100 feet on a 240 volt a single phase system.
A 3/0 aluminum conductor will limit the voltage drop to3% or less when supplying 125 amps for 175 feet on a 220 volt system. If the 125 amp load is a sub distribution panel that is not going to be fully loaded to 125 amps then using the exact connected load, which might be smaller than 125 amps will effect the wire sizing. The grounding conductor for that size distribution panel is #6 bare copper.
That distance you are going to have to install a sub-panel and run AWG # 4 wire and even then you will have a voltage drop of 7.45 volts giving you 232.55 volts at the sub-panel which is acceptable.
30 inches
A #1 copper conductor is rated at 140 amps with an insulation rating factor of 90 degrees C at 240 volt single phase, will give you a full 100 amps at 200 feet. #4 wire should give you 95 amps. Anything over 200 feet you will start loosing more amps.
A 1/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 30 amps for 500 feet on a 240 volt system.
With out knowing the amperage rating of the panel, an answer can not be given.
A 3/0 aluminum conductor will limit the voltage drop to3% or less when supplying 125 amps for 175 feet on a 220 volt system. If the 125 amp load is a sub distribution panel that is not going to be fully loaded to 125 amps then using the exact connected load, which might be smaller than 125 amps will effect the wire sizing. The grounding conductor for that size distribution panel is #6 bare copper.
i have 200 hp motor what i need cable size in 100 feet distance
That distance you are going to have to install a sub-panel and run AWG # 4 wire and even then you will have a voltage drop of 7.45 volts giving you 232.55 volts at the sub-panel which is acceptable.
30 inches
A wire size of 250 MCM will limit the voltage drop to 3% over a distance of 200 feet.
What is the Solar panel wattage to use charging a 12 volt 45 amp battery.
A #4 copper conductor will limit the voltage drop to 3% or less when supplying 20 amps for a distance of 250 feet at 120 volts.
If you want to be a indoor grower like your self you do stupid shite like ask these questions i a hope you have bond money PS spelling is wrong purposely
No, the source voltage can not change to a lower voltage without using equipment to do so.
It depends on whether this is residential or commercial.Commercial has to be 12 guage in conduit.
A #1 copper conductor is rated at 140 amps with an insulation rating factor of 90 degrees C at 240 volt single phase, will give you a full 100 amps at 200 feet. #4 wire should give you 95 amps. Anything over 200 feet you will start loosing more amps.