For instance the Oroville Dam has 600 feet of head (water pressure). Flowing 1000 cubic feet per second of water, it can make a lot of power. To make that same power, a Mississippi River dam (with only 20 feet of head) has to drop 30,000 CFS. So your 560 watt pump can happen either at. 2.33 amps at 240V; 4.7 amps at 120V; 47 amps at 12V; Why Now, you may wonder why not use a small-sized breaker and be done with it? Well, if it trips frequently, it can damage your pump. Also, that’s why you can’t use a 15 amp switch in a 20 amp circuit. On the other hand, a high-amperage circuit breaker is also bad. Although, it is pretty self-explanatory. What will happen with a valve amp is that filaments get over run. If you have a 220 to 6.3 vac filament supply then the ratio is approx 35:1 meaning 220 volts gives 6.3 volts. 245 volts would give nearer 7 volts. Also, the HT supplies will rise by a similar percentage. Can I use European 230V appliances on a 220 volt U.S. circuit? Understand U.S. 220v has two live/hot line while European has only one. Would 50 vs/ 60 hz be a huge problem? Yes, certainly, provided that it is rated for the 50Hz power used in China. That voltage is less than 5% low, so you'll just get slightly less air flow and slightly less (acoustic) noise. At least in Italy such a voltage variation is well within the grid spec, that is +-10% meaning from about 200V to 250V. Some general information on the use of I will run 220v to a breaker box in the building and wire my 110/220 lathe and 115/230 mill to use their high voltage side. Then run 110 from the buildings breaker box to receptacles for lights, bench grinder and other stuff like that in the building. Yes, but you should color the white wire to be a red or black in the panel as well as at the device. It is not being used as a white (neutral) so make it look like a hot (black or red). The bare goes to the same bus that the other grounding wires are on. Upvote. Electrical - AC & DC - 220 volts on 10-2 wire - I bought a small electrical heater Watts Formula: Watts = Volts x Amps. 120V x 15A = 1800 Watts. compare to. 240V x 7.5A = 1800 Watt. Kilowatts Per Hour Formula: Watts x Hours Run ÷ 1000. 1,800 Watts x 10 Hours ÷ 1000 = 18 kWh. The watt usage is virtually identical when calculated in this manner. Part of the reason watts is the same is because of the way the two voltages are .

can i use 230v in 220v