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Appliance Voltage and Travel Issues

If you’re traveling, check out which voltage the country you’re visiting uses before plugging in electrical appliances. In North America and South America they use 110-120 volts; most other regions use 220-240 volts.

3,242 Questions
Electronics Engineering
Appliance Voltage and Travel Issues

Is electrical power measured in coulombs?

No.

Coulombs are a measure of charge - literally electrons, although the whole unit is much larger than a single electron.

In some circuits, such as lithium ion battery chargers, literally measure the amount of current over time which gives you the amount of charge - coulombs - that has passed from the battery into the powered device or vice versa.

All that being said, in this case, the value of the coulombs can be negative. This simply represents a charge imbalance.

Power is measured in Watts. Power can be generated in Watts or consumed in Watts.

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Home Electricity
Appliance Voltage and Travel Issues
Modification of Old Electrical Work

Can you plug a 240v device into a 120v wall socket?

No, the device will not function properly.

Some devices can operate on both voltages, a computer power supply for example. Most devices require a properly wired outlet connected to the correct voltage source.

In the US most houses are supplied with 220/240 volt to their utility panel. An electrician can help you install an outlet for your device.

Note:

The above answer is correct. In addition, within the United States, cord caps, {plugs}, and receptacles, {outlets}, have unique configurations for various voltages and currents that prevent plugging in 120 volt loads to 240 volt sources. At the same time, they prevent you from plugging in a 30 amp device into a 20 amp outlet.

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Home Electricity
Appliance Voltage and Travel Issues
Home Appliances

Is it safe to use a 250V appliance with a 220 volt service?

Shouldn't be a problem. The 250V is likely a maximum rating and it is designed for 220-240 V service. Just make sure the current draw is less than the circuit breaker rating.

Another Answer

If you are referring to a European residential service, then you should be aware that the nominal voltage is 230 V, not 220 V, and there are no such things as 250-V appliances. An appliance's rated voltage will always match the nominal voltage of the supply they are designed to operate from.

But you should be aware that 230 V is a 'nominal', or 'named', value -the actual value is allowed to increase by 10% -in other words, it can be up to 23 V higher than its nominal value. This means that you can expect a 230-V supply to vary up to 253 V.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Engineering

Can 110volt fan motor be used in a 220 volt electric furnace?

Almost all furnace blower motors run on 120 volts. The 240 volt supply to the furnace is typically just a three wire cable two "hots" and a neutral. Furnaces are generally wired to tap one of the two "hot" wires to the neutral wire to run the blower motor.

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Home Electricity
Appliance Voltage and Travel Issues

Can you use a 9 volt 800ma adapter for 9 volt 200ma device?

Yes, the mA number is the maximum amount that the adapter will safely produce. A 200 milliamps device is well within that range.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Wiring

Will a 12 volt light work with 24 volt system?

It may work but may be brighter than the rating stamped on the bulb or the filament may burn out very quickly, depends on what sort of bulb it is, wherhet is uses a ballast or some form of regulator etc.. its probably best not to try unless your positive it is designed to take double the voltage

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Home Electricity
Electronics Engineering
Appliance Voltage and Travel Issues

Can you use a 9v dc 1000ma adaptor for a device that has 'power input' of 15v dc 800ma?

A: Disregarding the fact of different voltages there is the power to be concerned 9v x 1A = 9W, 15V X .8 = 12W. THE DEVICE WILL BE UNDER POWER.

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Home Electricity
Appliance Voltage and Travel Issues

How do you make a 110 volt device 220 volt compatible?

You have to buy a transformer or converter from 220v to 110v.

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Home Electricity
Appliance Voltage and Travel Issues

Can you use a 9v dc adapter for a device that calls for 12v dc adapter?

No, the voltage is too low.

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New Electrical Work
Appliance Voltage and Travel Issues

What size breaker do you need for a freezer?

The name plate, which is a metal plate on the back of the appliance with a lot of technical information on it, may tell you straight up what size the circuit needs to be. If it doesn't it will most certainly give you the wattage of the freezer. For single phase systems such as in a home, take that number, divide by the voltage, which gives you amps, and choose the next size larger breaker and corresponding wire size.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Wiring

Can a 9 volt motor rotate 9 volt dynamo?

Are you going to use the 9-volt motor as a dynamo, and the 9-volt dynamo as a motor? Yes, the motor can rotate the dynamo because DC motors and DC generators are actually the same thing--they just apply power to the terminals of a motor to make it turn, and turn the shaft of a generator to make power appear at the terminals.

Having said that, if you're going to try to connect the shaft of a 9v motor to the shaft of a 9v dynamo, and use the dynamo to power the motor so as to create a perpetual motion machine...that won't work. The motor wastes a little bit of energy, as does the dynamo. It is possible to build a device that uses a motor to drive an alternator, which is the AC version of a dynamo. You power the motor from the AC grid, and power something that's very sensitive to noise on the line from the alternator. This is called a Motor Generator set, and it's how they powered Cray-1 supercomputers.

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Appliance Voltage and Travel Issues
Philippines
50 Hertz Residential Electricity

What is the power rating in Hz in Cebu Philippines?

All of the Philippines uses 220 V at 50 Hz.

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Home Electricity
Appliance Voltage and Travel Issues
Audio Editing and Recording

Can you use a 230 volt plug in a 240 volt socket?

If the blade configuration is correct for the receptacle then yes.

Additional Answer

If you are referring to British sockets, then, as the nominal supply voltage is now 230 V, not 240 V, the answer will of course be yes.

In Britain the nominal voltage is 230 v but the actual voltage has not been changed from the original 240 v. Mine is 242 v at the time of writing.

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Appliance Voltage and Travel Issues
Electrical Engineering

Why are transformers rated in VA instead of watts?

VA, or volt-amperes, is a measure of the output of the transformer. VA is also called apparent power. Watts on the other hand, is also called true power. If the transformer feeds a resistive load, then watts are equal to VA, because the voltage and current are in phase. If the transformer feeds a reactive load, such as a motor, then the voltage and current are no longer in phase, and the true power (watts) is less than apparent power.

Since the true power, or watts delivered can change depending on the load, it is not very useful as a transformer rating. The VA remains constant irregardless of the load characteristics, and so is a much better indicator of transformer performance.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Wiring

How Convert 230 volt to 460 volt?

To convert single phase 230 to 460 volt, you would need a transformer that is rated at 460v and 230v respectively. It can be a step down or step up transformer. For 3 phase, you would need a 3 phase transformer.

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Appliance Voltage and Travel Issues

How many watts is a sump pump?

Sump pump motors come in various sizes. To give an answer, the HP or voltage and amperage of the motor must be given. You may find the following formula useful. Watts = Amps x Volts.

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Appliance Voltage and Travel Issues
Hong Kong

Will US electric appliances work in Hong Kong?

Hong Kong uses the same electrical output/sockets as the UK so US appliances will need an adaptor.

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Home Electricity
Appliance Voltage and Travel Issues
Home Appliances

Is there a 110 volt Clothes dryer?

The Kenmore 84722 (Sears.com) is a 110Volt dryer. Note that because it only has 110 Volts (not the 240 Volts of a typical dryer) it will take a long time to dry, and the capacity is small. There is also a 110 Volt laundry center (with the same caveats) Kenmore 88732.

Each unit also needs venting (permanent or temporary) to the outside.

Additional answer:

There are many clothes dryers that will operate on 110 volts - and they are usually ones with gas heaters. These include Maytag, Whirlpool, Kenmore, GE, Hotpoint, Haier, LG, Samsung and others.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Engineering

Calculate KWH from KW?

The unit kWh is a unit of energy, which is power multiplied by time. Multiply the power of the equipment (measured in W or kW) by time used (measured in h) and you get the energy in kWh.

Examples:

A power of 1 kW over a time of one hour is one kWh. A 100 W (0.1 kW) bulb left on for 5 hours uses 0.1 x 5 = 0.5 kWh.

If your home uses an average of 500 W (0.5 kW) then it will consume 12 kWh per day (24 h).

Also not the correct capitalization. Only the W (watt) is capitalized, the k (kilo = 1000) prefix and the time unit h (hour) are not.

Simply, multiply power (kW) from the time (in hours) the equipment has been used..

P (kW) x t (h) = Pt (kWh)

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Consumer Electronics
Home Electricity
Appliance Voltage and Travel Issues

Will 9v 300mA power adapter work with a 9v 700mA device?

No, the adapter's power output has to be equal to or greater that the current draw of the device.

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Engineering

Convert 220V 50hz to 120V 60hz?

use a DC link. power electronics stuff !! so in this DC link you convert the ac 50 hz to dc than convert back this dc to 60 hz with different voltage by controlling the amplitude modulation of the inverter....got it..;)

You can now purchase a frequency converter capable of converting both the voltage from 220v(+/-10%) 50Hz to 110v 60Hz and the Hz. This unit was primarily designed for the use in American RV's sold into Europe, there is also now a 2 phase model offering 2 x 3KVA on each phase at 60Hz.

See related links below

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Consumer Electronics
Appliance Voltage and Travel Issues

Can you power a 9v 700ma device with a 9v 300ma adaptor?

No. The device will try to draw 700 milliamps which will overload the 300 milliamp adapter most likely causing it to burn out and possibly catch fire.

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Home Electricity
Appliance Voltage and Travel Issues

How do you reduce 12 volts to 8 volts or 10 volts?

With step down Transformer which is having multi tappings / outputs

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Home Electricity
Appliance Voltage and Travel Issues
Electrical Wiring

What happens if you replace a 250 volt fuse with 32 volts?

In simple terms, whenever a fuse 'blows', the resulting gap in the melted element must be great enough to prevent the voltage across that gap from maintaining or re-igniting the resulting arc. So, in addition to their current rating, fuses are also rated according to the voltage at which they are designed to operate.

So, if you were to use a 32-V fuse in a 250-V circuit, it is likely that it will not be able to extinguish the resulting arc when the fuse operates, and the circuit will not be protected properly.

215216217
Consumer Electronics
Appliance Voltage and Travel Issues
Electrical Wiring

What happens when 110 volt equipment is plugged into a 240 volt source?

Each equipment has electrical specifications; for example most laptop chargers are rated to handle 110V to 240V at either 50-60Hz. In other words; the charger can be plugged into either 110V or 240V and it will adjust automatically and keeps the output at the voltage the computer requires.

Some desktops have an option on the power supply to accept either voltage, which must be set manually.

However; much of the electrical equipments are set to a single voltage and it can not be changed. should someone plug in a 110V rated equipment into a higher voltage (i.e. 240) then the internal parts will burn.

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