How does the protection device work for overvoltage?
The protection device for overvoltage, also known as surger suppression or surge protector, is a device designed to protect electrical equipment from the harmful effects of electric poles and overvoltage. The two most common methods that use overvoltage protection to operate this function are to divert excess electric increase to the ground and block the increase. Most preliminary surge devices use the grounding method that converts excess voltage to the ground conductor of the electrical socket. Spike lasts less than three nanoseconds or three billion seconds. Any power flow that lasts longer than the tip is called overvoltage. Any electrical value higher than the standard voltage in the area - for example, 120 volts in the United States - qualifies as a tip or increase. The overvoltage protection devices are designed to protect against the effects of spikes and overvoltage.
When the overvoltage protective device works properly, standard voltage levels go through unaffected butThe tip or increase will be filtered to the ground using a varistor of metal oxide oxide (MOV). The MOV acts as a magnet for harmful excess electricity, pulls it out of the living wire and transmits it to the ground wire of the scent, from any fine electronic equipment. The MOV has a limited lifetime and it may be necessary to replace it after resisting a certain number of overvolts. This is usually marked with light on the protection device for overvoltage itself.
Surge protection device can also use GDT tube to protect against overvoltage. The GDT uses an inert gas to divert electricity from the live wire to the ground conductor. During normal voltage, the gas is inert and creates a very bad conductor for the current. However, when there is an increase, the cause of excess duty gas for ionization and becomes an excellent conductor. The extra voltage moves through gas and into the ground wire until the voltage returns to a safe level when the gas does not return to its inert form. Like the MOV, GDT is only able to keep a certain Czecht overvoltage.
Although surge protection devices are an important device to protect fine electronic components, they are far from infallible. The increase beyond the ability to withstand the ability to withstand the protected overvoltage can still withstand any connected equipment. The best protection during a high -risk situation, such as a storm, is completely disconnected by electrical equipment.