Automatic voltage protector and air circuit breaker, I believe everyone has heard of them and is very familiar with them, then do you know what the difference is between them and how to use them? Automatic voltage protector and air circuit breaker both play an important role in the power system, but each has its own characteristics.
The main difference between automatic voltage protectors and air circuit breakers lies in their protection functions and mechanisms.
Automatic voltage protectors, also known as overvoltage and undervoltage protectors, are mainly used to monitor, control, and protect voltage comprehensively. When the grid voltage suddenly changes, whether it is overvoltage or undervoltage, it can intelligently and automatically cut off the power supply quickly to ensure the safety of power facilities. This protector is mainly used in household and shopping mall distribution lines for overvoltage, Undervoltage, phase failure, and neutral line failure protection. Another feature of automatic voltage protectors is that they can automatically close when the voltage returns to normal, which is convenient for rapid power supply restoration.
Air circuit breakers, also known as air switches, are switches that automatically disconnect as long as the current in the circuit exceeds the rated current. Its main function is to protect the circuit from burning due to excessive current, and it does not work for leakage. Air circuit breakers integrate control and multiple protection functions. In addition to completing contact and disconnection of circuits, they can also protect circuits or electrical equipment from short circuits, severe overloads, and undervoltages, and can also be used to start motors infrequently.
How to use the automatic voltage protector
→ Inspection and installation:
It is necessary to open the shell of the overvoltage protector and check whether there are any abnormal phenomena, such as damage, burning, etc. Then, according to the requirements of the equipment, select the appropriate overvoltage protector model and specifications, and connect the protector to the equipment firmly according to the connection method in the manual
→ Parameter setting:
According to the actual working environment and system requirements, set the action value, delay time, and other parameters of the overvoltage protector. These settings are crucial to ensure the effective operation of the protector
→ Self-test and initialization:
Before starting the equipment, perform a self-test and initialization operations on the overvoltage protector to ensure that all cables are firmly connected and undamaged. This includes operating through the corresponding interface or button and performing system interlocking tests to ensure that the protector can act in time when an overvoltage event occurs.
→ Operation monitoring and maintenance:
Perform functional tests on the overvoltage protector regularly to ensure that it is in good working condition. At the same time, monitor the counting data of the counter, and record and analyze the frequency and intensity of overvoltage events.
→ Troubleshooting and Resetting:
Once a device failure or malfunction is discovered, immediately perform troubleshooting according to the device manual. After troubleshooting, reset the overvoltage protector and counter to restore their normal working state.
How to use an air circuit breaker
→ Disconnect the power supply. When installing, maintaining, and repairing, be sure to cut off the power supply of the relevant equipment first. Avoid electric shock, electric shock, or other dangerous accidents.
→ Operating environment. The operating environment of the air circuit breaker must be kept clean, dry, and well-ventilated. Avoid using and storing it in a humid, corrosive, and dusty environment.
→ Operating steps. When using an air circuit breaker, be sure to follow the correct operating sequence. First, turn the air switch off, and then connect the cables. Finally, adjust the appropriate air pressure to make the air circuit breaker operate normally.
→ Precautions. When using an air circuit breaker, be sure to pay attention to maintenance to avoid excessive contamination or moisture that may cause short circuits or failures. At the same time, during normal use, regularly check the air pressure, oil level, and sealing performance to ensure its safety and reliability.
Summary: Automatic voltage protectors focus on voltage monitoring and protection to prevent abnormal voltage from causing damage to equipment; while air circuit breakers focus more on current protection to prevent excessive current from causing damage to equipment or lines. Both have their important roles in the power system and jointly ensure the safe operation of the electrical system.
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