Your question should read, "Can electrical energy be stored?", as 'power' is simply the rate of utilising energy. The answer is, in a sense, yes. Hydroelectric generation systems 'store' huge amounts of energy in reservoirs, which can then be converted into electrical energy upon demand. Some hydroelectric plants will actually pump water from a lower reservoir to an upper reservoir during periods of low demand so that the upper reservoir is refilled, ready to provide more energy on demand. Direct storage of very small amounts of energy can be achieved with capacitors, but the amount of energy stored is very low and not of much use other than for specific, low-energy, applications -certainly not enough for practical purposes. Finally, we could argue that batteries store electrical energy although, like hydroelectric dams, the energy is provided by the work done (in this case, by chemical reaction) by the battery rather than by 'storage'.
The symbol for alternating current is: ~
Vac usually stands for voltage alternating current. It represents the voltage of an alternating current electrical system.
Alternating Current is measured in Amperes.
Three-phase 408V systems typically use alternating current (AC).
An inverter is the apparatus that changes direct current (DC) to alternating current (AC). It does this by converting the fixed voltage and direction of DC electricity into an oscillating voltage and alternating direction of AC electricity.
An AC current can not be stored.
"Current" cannot be stored at all in any way; when you stop it moving, it isn't current any more and moving it means using it. The energy carried however, can be stored in several different ways.
"What is alternating current machine?"
The symbol for alternating current is: ~
Vac usually stands for voltage alternating current. It represents the voltage of an alternating current electrical system.
Alternating current. Direct current is used in batteries.
Why direct current (DC) can be stored but alternating current(AC) can not be? Current means flow of charge per unit second. Any flow cannot be made stationary. Then it is not flow. Hence both direct current and alternating current cannot be stored. We can store only charges. In capacitors we store charges and not current. For storing we use direct supply or direct voltage When a capacitor is connected to a battery, which is a source of direct voltage, each plate of the condenser get charged. Charges remain in the plates. No current flows in between the plates. When the source is removed, there are some charges left in the plates. We say that charges are stored in the plates. If an alternating source of supply is connected in between the plates,every instant ,the charges in the plates are alternating and they are not stationary. When ac supply is removed, all the charges move out of the plates and hence no charge is left in them. Hence charges can be stored with dc supply and not with ac supply. However as long as the ac is connected to the capacitor, the capacitor gets stored and emptied with the frequency of the ac supply.
Alternating Current is measured in Amperes.
Alternating current is better than direct current for transmission.
A generator produces alternating current.
Nicola Tesla is the father of alternating current.
It is technically an alternating current generator.It is technically an alternating current generator.