One hertz is one cycle per second, meaning repeating cycle as an event. For example, hertz is applied physics measuring the number of times for a second wave (either acoustic or electromagnetic) is repeated or can be applied, among other uses, to ocean waves that reach the Beach vibrations per second or a solid. The quantity that measures the frequency hertz is called,in this regard, the inverse of the period. One hertz is an oscillation frequency of suffering a particle over a period of one second.

The phase ended in industrial installations (recommended for this type of facility) are those formed by three different phases. It is normally found in industries, but also can be found in old residential installation. Facilities include three-phase 5-wire cable 1. phase (black or brown cable) provides electricity. 2. The power phase 2 (brown) provides electricity. 3.Phase 3 cable (gray) provides electricity. 4. Neutral (blue wire) is responsible for the electricity back where it came from creating a circle. 5. Physical cable (two colors) protects the energy absorbing phase of their environment, in some cases this fifth wire is not used, but it should be done for safety. 1. In the image-phase power system three-phase power system 2.

VAC would be the abbreviation of Volt Altern Current which would be translated Volts of alternating current. The difference between VDC is that its sinusoidal oscillation achieving a more efficient energy transmission.

The alternating current is the energy that we receive in our homes, it is generated in the power plants by means of alternators.

The intensity of this type of current varies with time, and changes direction 50 times throughsecond (50hz). The generated voltage changes in the form of sine wave so it is not constant.

In the image:

1. Current by pulsations.
2. Direct current (DC).
3. Alternating current (AC).
4. Variable current.

Induction charging is a process by which a device can be a charger without direct contact.

Electrification or charging by induction is carried out when a body with an electric charge approaches another with a neutral charge, which causes a redistribution of charges due to the repulsion between them or when the neutral charge is rearranged upon receiving a nearby body with electric charge.

This reorderingor redistribution causes some areas to be loaded positively or negatively, by loading the device.

We can mostly find this charging system in mobile phones or smart watches which can be charged without connecting them with cable, it is only necessary to leave them in the induction base and the charging procedure will be performed automatically.

It must be said that not all devicesthey are of this technology, but it is possible in many cases to adapt them.