A capacitor is an electronic component that has the capacity to store electrical energy. It stores this electricity according to the voltage it receives and does this in a proportional manner. It is one of the most important electrical components, being present in electronic and electrical circuits; which means that any digital device has these components, which are necessary for its proper functioning.

Reviews on have it that the easiest way to find out if a capacitor is working is by observing to see if it is swollen. Of course, if it is swollen, then it is damaged. Another way to find out if a capacitor is already completely damaged is to use a multimeter, which measures the electrical frequencies of electrical devices, as well as to check if they have an electrical charge even though they are unplugged. For this, we will place the device in the highest resistance range with the multimeter test leads, we then touch the terminals of the component, if the device is digital, by means of the sound of a beep, we will be able to know whether the capacitor is working or not. If the beep sounds and goes out after a while, it means the capacitor is functional and vice versa.

It is important to note that before testing a capacitor, discharge the energy it has available, as it is very possible that if you touch it when it is charged you could receive an electric shock and in the worst-case scenario, die of cardiac arrest. The electric load can be high enough for this, so it is recommended to use some apps about capacitors and also use necessary protective equipment to check the capacitors.

Types of Capacitors

Depending on the material with which the capacitors are made, we can find three (3) main types;

Ceramic capacitor

These capacitors use ceramic as an insulating material between their sheets. Unfortunately, their carrying capacity is very low, but they compensate for it by supporting extremely high electrical frequencies.

Polyester capacitor

They use polyester as sheets and on them aluminum is deposited, together acting as an insulator. These capacitors have a good power factor and their pressure drop is very low, moreover, they are able to withstand high-frequency variations without any problem. In this type of capacitor, we can find those in polycarbonate and polypropylene.

Electrolytic capacitor

These capacitors use an ionic liquid; that is, a liquid compound composed exclusively of ions, which are electrically charged particles. This electrolytic component is used as an electrical conductor of one of the plates (the one which is charged by the electrons). The electrolytic capacitors are further subdivided into three other types of capacitors; they depend on the reinforcement and the electrolyte used. These capacitors are aluminum capacitors, tantalum capacitors, and bipolar capacitors.

Final Notes

These are the most common types of capacitors and are mainly used in an electrical circuit. They have a large storage capacity (greater than that of the previous two) and are used in circuits that operate with large amounts of current but at low frequency.

In conclusion, capacitors can be used in electrical installations to ‘smooth’ the voltage in a circuit. They are therefore present in many household appliances that you have in your home, including; Hotplates, Radiators, Water heater, Computer, Kettle, Hairdryer, etc.

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