The only way to do that is with a transformer. They make inline Transformers that convert 230 to 115 and they simply plug in inline.
Converting 9 volts to 230 volts would require a pretty hardcore step up transformer (Expensive) and you probably wouldn't have enough current to sustain the load.See discussion page for more information.
230 Volt
Usually in a 230 volt situation, there are three wires. One wire is called neutral or ground. When you hook a motor or lamp between one wire and neutral, you get 115 volts. They are designated usually as L1, L2 and neutral. Things hooked between L1 and L2 are at 230 volts. Anything between L1 and neutral or L2 and neutral are at 120 volts.
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16A
That is called an inverter.
There is no need to convert a 110-volt outlet to 115 volts as they are essentially the same. The slight variation is within the normal tolerance range for electrical systems. If you need to use a device that requires 115 volts, you can safely plug it into a 110-volt outlet without the need for an adapter.
If a precision voltage is needed from 200 to 230 an auto transformer could be used. If the load is a 230 volt motor to be operated on 200 then add 15% to the nameplate full load amperage for the calculation for overload protection.
Yes, you can use a 230 volt device on a 240 volt supply.
The greatest common factor for {115, 230, 345} is 115. Note that 115 x 2 = 230, and 115 x 3 = 345.
230% of 50 = 230% * 50 = 2.3 * 50 = 115
115 plus 115 = 230
Yes it would work pretty well but it might not meet its accuracy specification.
no
Yes, a 230 volt motor is generally more efficient and cheaper to run compared to a 115 volt motor. Higher voltage motors are more energy efficient because they draw less current, resulting in lower energy costs over time.
115
The wiring instructions for wiring a dual voltage motor are on the underside of the lid of the motors junction box. If it is not there look on the Internet for winding dual voltage motor connections.