v = volts a = alternating c = current vac is what the lights and appliances in your house use. Your TV uses 120VAC and your dryer or electric stove uses 240vac. 120vac is the accepted standard of electric current commonly used through out the U>S>. Vac speaks of ac or alternating current voltage. 240 volts is simply twice that amount. Electric lights, lighter appliances mostly use 120 volts to energize them but heavier duty appliances such as dryers required more voltage as they use more energy. Vac or alternating current as oppose to DC(Direct current )which is normally used on boats, ships, etc.
Oh, dude, you're asking about voltages now? Alright, so 120VAC and 240VAC are just fancy ways of saying how much power your electrical outlets can handle. The "VAC" stands for volts alternating current, which is basically the juice flowing through your wires. So, if you're plugging in something that needs 240VAC, just make sure your outlet can handle the power or you might end up with a shocking experience...literally.
"120VAC" and "240VAC" refer to the voltage of an alternating current (AC) electrical system. The "V" stands for volts, which is the unit of measurement for electrical potential difference. The numbers 120 and 240 indicate the voltage level of the electrical supply in volts. For example, in North America, standard household outlets are typically 120VAC, while larger appliances like stoves or dryers may require 240VAC for operation.
Well, hello there, friend! 120VAC and 240VAC are terms used to describe the voltage of electrical power in your home. The "V" stands for volts, which is a measure of electrical pressure. The "AC" means alternating current, the type of electricity that flows back and forth in a circuit. It's important to know the voltage so you can safely use your electrical devices and keep on creating those happy little sparks of creativity!
Most homes have a 240 volt supply that is center-tapped at the distribution transformer. The center tap is neutral and is also grounded. Each leg is hot. The voltage from neutral to either leg is 120 volts. The voltage between legs is 240 volts. Each leg, measured to neutral, is 180 degrees out of phase with respect to each other. This is still considered single-phase power. Sometimes, the term split-phase is used. Do not call it two phase, or partial three phase, because the phase angle is 180 degrees instead of 120 degrees. The advantage of 120 / 240 power is that you can connect normal loads (such as lights) from neutral to hot, and run them on 120 volts, while connecting larger loads (such as clothes dryers and ranges) from hot to hot, and run them on 240 volts. In an ideal configuration, the current on one leg is balanced to the current on the other leg. This results in zero or near zero current on neutral, and allows the distribution transformer to operate more efficiently.
240 volts alternating current (240vac)
you need a step up transformer
If you are referring to the 25KW Power Distribution Panel used by the military, NSN: 6110-01-244-3209, there are four 120VAC, 20A circuit breakers and four corresponding twist lock receptacles.
The power supply converts the high voltage (e.g. 120VAC in US, 240VAC in Europe) alternating current house electricity supply down to the various different low voltage direct current supplies needed by different devices that make up the computer. These low voltage direct current supplies are tightly regulated in the power supply circuitry to prevent transients in the house electric supply from perturbing the computer's electronics as well as to compensate for variations in power demand as the different devices that make up the computer operate.
In theory, you can. If you have a power transformer rated at 480 primary side and the secondary at say 120VAC, then the ratio is 4:1. Meaning that there are four times the number of turns on the primary side as to the secondary. So, if you were to power the primary side with 120VAC as opposed to 480VAC you would expect to see a 1/4 reduction in voltage output on the secondary, or 30VAC. The current would be dependant on the cross section of the secondary conductor and core construction. As current is increased thru the load (as in resistance welding) for example, you would expect voltage to decrease or lag, a larger Industrial sized transformer is able to compensate for this lag in voltage better than a compact household power transformer.
A small unit like that will most likely be 120vac. If you check the motor it may be 120/ 240vac, meaning that by changing wiring in motor, you have a choice of voltages. lc
240 volts alternating current (240vac)
In the U.S. the normal voltage for appliances (refrigerators, washing machines, lamps, microwaves, computers, televisions, etc.) is 120vac. Such things as air conditioners, electric ranges, electric clothes dryers, etc. use 240vac.
Sadly, there's no simple answer to this question. The only advantage of 120VAC that it's the standard in the US and Canada, so it's easy to find outlets, extension cords, and plugs, as long as you need less than 15 amps (about 2 horsepower). The same current flowing at 240VAC delivers twice the power that it would at 120VAC; so for equivalent power, 240VAC requires half the amperage. This lets you use smaller cheaper wires, and for a given wire size reduces the resistive heating in the wire. For these reasons, electricity-hungry appliances like electric water heaters, electric ovens, and big power tools are usually 240VAC. Surprisingly, other than perhaps a few percent reduction in resistive heating, you won't save any money on your electrical utility bill by switching to 240VAC. This is because you get charged by power used, not current used. When considering a new power tool, the downside of 240VAC is you often need a special branch line and outlet, which normally needs to be installed by an electrician, and may even require an upgrade to the house's electrical service. And your equipment will need special plugs, since there is no single standard 240VAC plug. The upside is lower resistive heating in the cord, and the ability to deliver up to tens of horsepower.
v = volts a = alternating c = current vac is what the lights and appliances in your house use. Your TV uses 120VAC. 120vac is the accepted standard of electric current commonly used through out the U>S>. Vac speaks of ac or alternating current voltage.
v = volts a = alternating c = current vac is what the lights and appliances in your house use. Your TV uses 120VAC. 120vac is the accepted standard of electric current commonly used through out the U>S>. Vac speaks of ac or alternating current voltage.
Neutral is the current return for the hot leg(s). Neutral is grounded, so as to limit the maximum voltage of any of the hots with respect to earth ground. In a typical residential 120/240VAC split phase system, either of the hots with respect to neutral is 120VAC. In a three phase system, neutral is at the center of the wye configuration, and each of the three hots returns power to it.
v = volts a = alternating c = current vac is what the lights and appliances in your house use. Your TV uses 120VAC. 120vac is the accepted standard of electric current commonly used through out the U>S>. Vac speaks of ac or alternating current voltage.
120VUC means 120VAC/DC
3 prong 120vac
850va 12vdc inverter transformer praemari tans
Most 3 Phase 480V Starters are controlled by 120VAC. This is because the coils on the contactors (starters) are 120VAC. Just ensure the voltage matches the coil.