Introduction of working principle of dual power automatic transfer switch

Do you know the dual power automatic transfer switch? This kind of power equipment is widely used in our daily life, and it is estimated that few people have access to some knowledge in this area! Although electricity is very important to us, people are generally reluctant to touch this knowledge because of its danger. You certainly don't know some working principles of dual power automatic transfer switch! In fact, it is very necessary to understand the working principle of this kind of equipment. Next, Bian Xiao will give you a detailed introduction!

The working principle of dual power automatic transfer switch is simply the replacement between a common power supply and a standby power supply. When the common power supply suddenly fails or fails, it is composed of one or several dual-power automatic transfer switches and other necessary appliances, which are used to detect the power supply loop and automatically switch one power supply to another.

Dual Power Automatic Transfer Switch-Summary

In the design and manufacture of dual power automatic transfer switch, advanced technologies such as double-row composite contacts, micro-motor pre-energy storage, transverse connection mechanism, microelectronic control technology, electrical interlocking technology, reliable mechanical interlocking and zero-crossing technology are adopted, which basically realizes zero arc extinguishing, and at the same time, the isolation reliability between power supply and load is extremely high, with a service life of more than 8,000 times. The fully automatic type does not need any external control elements, and has the advantages of small size, beautiful appearance and light weight.

Dual power automatic transfer switch-composition

Before understanding the working principle of dual-power automatic transfer switch, let's first understand the structure of dual-power automatic transfer switch. The common dual-power automatic transfer switch in the market generally consists of switch body and controller. Switch body is divided into integral type and circuit breaker type, which is the key determinant of dual power automatic transfer switch. The controller is mainly used to detect the working state of the power supply. When the detected power supply fails, the controller issues an instruction and the switch body switches from one power supply to another.

Dual power automatic transfer switch-enable standby power supply

Cut off the breaker supplied by the public power supply, open the double-throw anti-reverse switch on the self-contained power supply side, keep the self-contained power supply breaker in the double-power automatic transfer switch box in the off state, and then start the standby power supply. When the standby unit is in normal operation, close the air switch of the generator and the circuit breakers in the self-contained power control cabinet, and finally close the standby power circuit breakers in the power switch box one by one to send electricity to all required loads to meet the power demand.

Dual power automatic transfer switch-restore power supply

When the ordinary power supply is in a normal state, the power supply will return to normal. The sequence is as follows: first turn off the self-contained power circuit breaker in the dual-power switch box, then turn off the circuit breaker in the self-contained power distribution cabinet, then turn off the main switch of the generator, and finally turn the double-throw switch to the commercial power side. Close the circuit breakers one by one from the public main power switch, and put the self-contained power circuit breakers in the dual-power automatic transfer switch box in the closed position. Be sure to check whether the indicator and indicator light of the instrument are normal.

Dual power automatic transfer switch-working conditions

There are some conditions for the use of dual power automatic transfer switch, such as keeping the upper limit of ambient temperature below 40℃, the lower limit below -5℃, the average ambient temperature within 24 hours not exceeding 35℃, the altitude of the use place not exceeding 2000m, the atmospheric relative humidity not exceeding 50% when the ambient temperature is 40℃, and the relative humidity can be higher when the temperature is low, with the maximum relative humidity of 90%.

Well, Bian Xiao has given you the most detailed introduction about the working principle of dual power automatic transfer switch. We need to know more about these aspects, so let's popularize some knowledge in this area! In fact, there are many kinds of dual power automatic transfer switches, but their working principles are the same. However, on the other hand, electricity is a dangerous thing after all, so we must be more careful when touching electricity in our daily life, and never let it cause certain danger to our lives.