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12
2023
-
09
The principle of the overvoltage protector is based on a voltage sensor and a control circuit.
The principle of the overvoltage protector is based on a voltage sensor and a control circuit. When the voltage exceeds the set safety range, the voltage sensor will sense the voltage change and transmit the signal to the control circuit. The control circuit will immediately take measures to reduce the voltage and protect the electrical equipment from damage. Common overvoltage protectors include instantaneous overvoltage protectors and continuous overvoltage protectors.
When choosing an overvoltage protector, the following factors need to be considered: rated voltage, rated current, overvoltage cut-off time and overvoltage cut-off current. The rated voltage refers to the voltage range in which the overvoltage protector can work normally, and the rated current refers to the current that the overvoltage protector can withstand. The overvoltage cut-off time refers to the time required for the overvoltage protector to cut off the power supply from sensing the overvoltage, and the overvoltage cut-off current refers to the current that the overvoltage protector can withstand after cutting off the power supply.
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