China - The air switch which is also known as air circuit breaker is one sort of circuit breakers. This device automatically disconnect switch as the circuit current exceeds the rated current value. According to the explaining of engineer from Yueqing Lovadon electric Co., LTD www.lovadon.com which is a China most professional Miniature circuit breaker manufacturer, the air switch is one of the very important appliances in the wholly system of low-voltage distribution networks and electric drive systems, which combines the functions of control and protection.
In addition to complete the function of contacting and breaking the circuit, the air circuit breaker could also provide suitable protection to the situations such as short circuit, electrical circuit overloading and under-voltage. On the other hand, this device could also be used for infrequent starting the motor in workshops or factories.
After the description about the strong points of the Moulded case circuit breaker , some people should also have the puzzle about the working principle of this circuit breaker. Now, the engineer from lovadon.com will clearly let people know this.
When the circuit bear with the general overload, the overload current will not let the electromagnetic release have action but it could let the heating components generate some heat, prompting heated bimetal bent upward. This bending force will push the lever to separate the catch and lock, after this, the main contact will be broken. When the circuit face with the short circuit or severe overload current and the short-circuit current exceeds the setting current value, the electromagnetic release will generate the large enough sucking force to suck the armature and hit impact lever so that the main power point will be separated and the whole power supply will be shut off.
The trip structure of the Miniature circuit breaker is one kind of lever means. When the main contacts closed by the operating mechanism, it will be kept at the position of off. If the situations of failure occur in the circuit, the relevant release will do some measurement to let the hook in tripping mechanism be separated so the main power contact will be quickly separated in action of releasing spring. According to different protective effect, the trip of the air circuit breaker can be divided into over-current release, pressure-loss release and other types.
In a word, the air circuit breaker is a very commonly electrical protection device in people¡¯s daily life. Although this device has simple structure and small size, it plays great role in maintaining the normal operation of power network in people¡¯s daily life. If you want to order great amounts of circuit breakers with high quality and low price, please get more information from lovadon.com.
About Yueqing Lovadon electric Co., LTD
Lovadon which was founded in 2012 is China most professional manufacturer ans supplier for all kinds of circuit breakers. With the development of recent years, their production, sales and service have already been accepted by most of cliens all over the world.
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Website: www.lovadon.com