The air switch ensures the safety of the power environment in actual life. In the world of electronic engineering, each component has its unique importance and function.The air switch is such an inconspicuous but crucial guardian who silently protects our safety in a place where we cant see.
In modern society, electricity has become an indispensable part of our daily life and work.However, the power safety problem that follows cannot be ignored.Among many electrical equipment, the air switch is a basic and critical component, playing a vital role.
The air switch, as the name suggests, is a switch that uses air as an insulating medium.It is mainly used in electrical systems in households, commerce, and industrial places. It is used to control the interruption of the circuit and automatically cut off the power when the circuit is abnormal to protect the safety of the circuit and equipment.
Specifically, the working principle of air switch is mainly based on electromagnetic principles and thermal effects.When the circuit works normally, the current through the contact in the air switch. Because the current volume is within the rated range, the calories generated on the contacts will not cause failure.At this time, the current flowing through the coil generates a magnetic field, but the magnetic force is not enough to promote the operation of the operating mechanism, so the switch is kept closed.
Once the circuit occurs overload or short -circuit failure, the current flowing through the contact will increase sharply.At this time, the heat generated on the contact is increased rapidly. If a certain threshold is reached, it will cause the double metal sheet to bend and deform, thereby pushing the operating mechanism to make the switch jump and cut off the circuit.At the same time, overload currents will also significantly increase the magnetic field strength of the coil. The powerful magnetic force can also promote the operating agency and achieve the purpose of rapid disconnect circuit.
Specifically, the protection function of the air switch includes short -circuit protection and overload protection.Short -circuit protection means that when the circuit has a short circuit, the air switch can cut off the power in a very short period of time to avoid serious consequences of short -circuit current.The overload protection means that when the circuit works above the rated current, the air switch will automatically cut off the power after a certain period of time to prevent the circuit from being damaged due to long -term overload.
In addition to the above basic protection functions, the modern air switch also has a leakage protection function.When there is a leakage in the circuit, the leakage protection device detects abnormalities and quickly cuts off the power to effectively prevent electric shock accidents and fire risks caused by leakage.
The air switch ensures the safety of the power environment in actual life. In the world of electronic engineering, each component has its unique importance and function.The air switch is such an inconspicuous but crucial guardian who silently protects our safety in a place where we cant see.

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