Yes you can, as long as they have the nearly the same output voltage it doesn't really matter. It is even more important to check three other things:
* that the amperage (current) drawn by the appliance is not greater than the rated output amperage shown on the transformer's label or rating plate;
* that the transformer or power supply unit produces an output that is the same kind as that required by the appliance. For instance, if the appliance requires a dc (direct current) supply it will not work on a power supply unit producing only ac (alternating current);
* if the power supply produces a dc output, be sure to check that the polarity ("+" and "-") of the power supply plug's inner and outer connections matches exactly what the appliance requires. If they are the wrong way round the appliance may not work or could even be damaged.
If you have them, it is best to check the rating plates of both the original power supply unit and the other one you are thinking of using, as well as the appliance's user handbook, to see exactly what voltage (ac or dc) and what amperage is required.
Using a fuse will not protect a 110-volt appliance from 220 volts. You will need a voltage converter or transformer to step down the voltage from 220 volts to 110 volts to protect the appliance. It is important to use the correct equipment to ensure the safety and proper functioning of the appliance.
The equation for wattage is W = A x V. Substitute your values into this equation and you will have your answer.
A 10 mm cable is most commonly used for a 500 KVA transformer, 240 volt, 3 phrase. The size of the wire that is used in a transformer is based on the voltage.
No, it requires a 180 Volt supply. Most appliances work +/- 10%, in this case 162 Volts to 198 Volts. I would question whether your appliance is really 180 Volt. No country uses this as domestic supply, it is usually 110V or 220-240V.
To power ten 12 volt 10 watt lights, you would need a transformer with a total output of at least 120 volts and 100 watts.
No, it is not safe to plug a 150V appliance into a 110V outlet. The appliance may not function properly and could potentially be damaged. Additionally, there is a risk of electrical hazards or fire due to the voltage mismatch.
If the power supply has a 5 volt tap on the secondary side of the transformer, yes. If there is no tap and the secondary side of the power supply is only 10 volts then no, you can not substitute the higher voltage unit.
Yes, you can typically use a 230V appliance in a 240V plug socket without any issues. The slight voltage difference is unlikely to cause damage to the appliance. However, if the appliance is sensitive, it's always best to refer to the manufacturer's guidelines or use a voltage converter for added safety.
In the US, Canada and other countries running a similar 60 Hz power supply service, household lighting and low-power appliances run at 120 volts plus or minus 10%. So the actual voltage supplied can change betwen 108 volts and 132 volts and would still be within proper limits. (To get the actual figures for your locality it is best to ask a local licensed electrician or your local electricity supply company.) But please note the above answer is for low-power appliances only, not clothes dryers. Dryers have to draw a much higher current or amperage than your normal 120 volt socket outlets can supply. For more information on installing a new breaker, circuit wiring and the correct socket outlet to suit a 120 volt dryer, please see the answers to the Related questionsshown below.
Use a properly rated potentiometer.
Yes this can be done with a step up transformer. Keep in mind that it is a 10 : 1 ratio. For every 1 amp that you want out of the 120 volt secondary there will have to be 10 amp input on the primary. This can lead to a very big wire size on the primary coil.
Using a 10 volt power supply for a 9 volt keyboard is not a good idea. The higher voltage will cause damage to the keyboard, burning it out and making it useless.