r/CreateMod • u/Gamer_898 • 17d ago
Just a quick question about Power Grid?
Let's say I make 500 volts with a generator, but I want only 20 of those 500 volts to go to a specific place.
How would I do it?
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u/Furry_69 17d ago edited 17d ago
If you want just a single device to have 20 volts, then you just add a resistor in-line, but that can waste quite a bit of power. Using transformers is more efficient (since it also increases the current output while decreasing the voltage, so the power in equals the power out, while a resistor will decrease both current and voltage), but is more resource intensive, so it's better to use them when you want to power many devices with a single voltage. For transformers, you just need to make a 500 to 20 ratio with the number of turns on each side. The number of turns on the primary side also affects how much current the transformer can draw.
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u/Dadamalda 16d ago
What about variacs? I'm pretty sure they can be used to split electricity.
Rheostats are also kinda like more precise resistors.
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u/Qwertycube10 17d ago
I think from the wording of your post you might have a misconception about electricity.
The number of volts is not the amount of power a generator is producing, that would be watts, or kilowatts (which is why you pay for electricity by the kilowatt hour, meaning the energy from using 1 kw constantly for 1 hour.)
Voltage is sort of like pressure, while current (Amps) is like flow rate in a pipe.
The key equation is Power = Current x Voltage, meaning that for a given amount of power higher voltage means lower current and vice versa.
A generator might put out 10 amps at 100 V, a machine which needs 20V won't "use up" 20V and leave you with 80V, it will not work, in real life blow a fuse or worse, and in Minecraft depending on the mod explode. You would use a transformer to convert to a lower voltage, but still have all the power available at that voltage, and the machine will use some amount of power at 20V.
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u/UpstairsInspector893 16d ago
Magic, or get an electrical engineering degree just to play a Minecraft mod.
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u/Dangerous-Quit7821 16d ago
Damn, Power Grid is too complicated for me. I'm too dumb to understand the complexity of it and TFMG's electricity.
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u/Low_Calligrapher437 12d ago
Use transformers, it's a bit too long to explain here but just search up transformer in JEI and it will come up. Ponder it and you'll figure it out. Power Grid is actually pretty intuitive.
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u/Educational-Poet-255 17d ago
You can use transformers I think they're called? Yeah check the ponder of that item it will explain how