What is the function of an automatic air switch?

In today's home, air switches have become an indispensable item in every household. So what is the purpose of an air switch? Let's find out together!

1. Leakage protection: In fact, in the process of life, many things are not possible without electricity. However, in the process of using electricity, dangerous accidents are inevitable, and in order to avoid this phenomenon, contemporary people have developed air switches.

It is understood that the main function of the air switch is that when there is a leakage phenomenon, the electricity can be isolated immediately, so as to ensure safety.

2. Short-circuit protection: If the electrician accidentally connects the wrong circuit during construction, then it is very likely that a short circuit will occur. But this is where the air switch comes into play, and it is immediately isolated from the circuit when there is a short circuit, and it doesn't require a little effort on our part.

It can be seen that the air switch can also effectively ensure our safety.

3. Current limiting: We all know that when the circuit is short-circuited, it will immediately produce a high current, so that the electrical appliances at home will soon burn out. But as long as you have an air switch installed in your home, then the air switch can disconnect the appliance from the electricity in a high-current situation.

When buying an air switch, be sure to make a simple understanding in advance, so as to avoid a series of troubles.

The purpose of the air switch is:

1. Short-circuit protection between two phases or between phase and ground.

2. Overcurrent protection of electrical appliances (how many A is the nameplate of the air switch, the total power of the electrical appliances is too large, and the current is also increased).

3. Protection when leakage occurs in the circuit (but it depends on whether its leakage current exceeds its protection current).

When the contact is poor, it will only ignite instantaneously, and the current is generally not large, and it will not form a short circuit.

The working principle is: when the line is short-circuited or seriously overloaded current, the short-circuit current exceeds the instantaneous tripping setting current value, the electromagnetic tripper produces a large enough suction, the armature is sucked and hits the lever, so that the hook rotates upward around the hinge 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.

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.

To put it simply, the air switch is a safety barrier for our household electricity, if there is a short circuit fault, load, and its undervoltage at home, the air switch will automatically cut off the power supply to ensure our electricity safety. Air switch principle: The key to the guarantee effect of the air switch is completed according to the power tripHis principle is that when the amount of current in the circuit exceeds the rated voltage indicated by the air switch, the air switch automatically trips, which has the effect of maintenance. In addition, the principle of the air switch with leakage protector is that when the current in the circuit has 30mAh (30mA) of current outflow, the air switch will automatically trip, which has a protective effect to prevent electric shock to the human body.

We can take a specific look at the above figure, the air switch model specification in the figure is DZ47 63C32, in which, DZ indicates: small and medium-sized air circuit breaker; 47 is the design scheme number; c indicates that it is used for general lighting; 32 indicates the ampere, which is the jump value. The air switch is generally used for a long time to prevent the power supply circuit from being too heavy, and in order to prevent the human body from being electrocuted, it only has the actual effect of fusing wire.

The main reason is to use gas as the chemical substance of the insulating layer, access the current amount in the route, let the components generate heat, push the resistance band of the internal structure to bend it after touching the heat, push the rod, let the buckle lock open, cut off the switching power supply, so that the air switch will jump independently, with a practical effect of maintaining the amount of current.

An air switch is a power switch that responds to a short circuit in household wires. In daily life, there are sometimes short-circuits in wires and power shutdowns. At the moment of breaking the circuit, it will produce a very large working voltage and heat, which will lead to the destruction of household appliances and serious safety accidents, so the application of air switches can be more ensured.

The air switch, also known as the air circuit breaker, belongs to the disconnector, which is a power switch that will automatically turn off the power supply as long as the current in the route exceeds the limit current flow. The air switch is a particularly important household appliance in the low-voltage electricity consumption Internet and power engineering towing system software, which integrates management and a variety of protection functions. In addition to being able to carry out electric shock accidents and cut off routes,It can also be used for maintenance of short-circuit faults, heavy loads, and undervoltages caused by routes or electrical equipment, and can also be used for motors that are not frequently used.

1. The gas switch in each empty hall only controls a part of the lighting and socket equipment (one room) to avoid tripping all the way and the whole family losing power;

2. Prevent the local current from being too large, exceeding the load of the wire, and preventing the local short circuit, resulting in a power outage in the orange part of the whole thing;

3. It can realize local power failure, which is convenient for maintenance and maintenance operations.

4. Prevent a short circuit from affecting the entire circuit, and effectively prevent the damage of electrical appliances caused by short circuit.