| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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An air switch, also known as an air circuit breaker, is a type of circuit breaker. It is a switch that automatically disconnects whenever the current in the circuit exceeds the rated current. The air switch is a very important electrical appliance in the low-voltage distribution network and power drive system, which integrates control and a variety of protection functions. In addition to completing the contact and breaking circuits, it can also protect the circuit or electrical equipment from short circuits, serious overloads and undervoltages, and can also be used to start the motor infrequently.
When the general overload occurs in the line, although the overload current can not make the electromagnetic tripper move, it can make the thermal element generate a certain amount of heat, promote the bimetal sheet to bend upwards when heated, push the lever to disconnect the hook and the lock, break the main contact, and cut off the power supply. When the line is short-circuited or seriously overloaded, the short-circuit current exceeds the instantaneous tripping setting current value, and the electromagnetic tripper generates a large enough suction force to suck the armature and hit the lever, so that the hook rotates upward around the shaft seat and disengages the lock, and the lock breaks the three main contacts under the action of the reaction spring to cut off the power supply.
The tripping mechanism of the switch is a set of connecting rod devices. When the main contact is closed by the operating mechanism, it is locked in the closing position by the latching hook. If a fault occurs in the circuit, the relevant tripper will act to disengage the locking hook in the tripping mechanism, so that the main contact is quickly disconnected by the release spring. According to the different protection functions, the trippers can be divided into overcurrent trippers and loss-of-voltage trippers.
Under normal conditions, the armature of the overcurrent tripper is released; In the event of a serious overload or short circuit fault, the coil connected in series with the main circuit will generate a strong electromagnetic attraction to attract the armature down and jack the locking hook, so that the main contact is disconnected. The undervoltage tripper works on the contrary, when the voltage is normal, the electromagnetic suction pulls the armature and the main contact is closed. In the event of a severe voltage drop or power failure, the armature is released and the main contact is disconnected. When the power supply voltage returns to normal, it must be re-closed before it can work, and the voltage loss protection is realized
Hubei Yixin Hualian Electromechanical Equipment Manufacturing Co., Ltd. was established and developed on the basis of the original Xiangyang Electromechanical Equipment Manufacturing Factory. It is a modern enterprise led by the electrical industry, with automation control, environmental protection, new energy, new materials, agriculture, animal husbandry, mining and other industries developing together and diversifying. The company has a long history of producing high and low voltage complete sets of electrical equipment. Its main products include high and low voltage complete sets of electrical equipment, motor soft starting equipment, high, medium, and low voltage frequency converters, and high and low voltage solid-state soft starting devices. It is also an enterprise that undertakes the supply and professional construction of power equipment for 35KV and below power engineering general contracting projects.
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