Isolation Transformer Principle

Isolation transformers belong to a safe power supply, generally used for machine repair, maintenance, protection, lightning protection, filtering.

The principle of isolating the transformer and the principle of the ordinary transformer are the same. It is the principle of electromagnetic induction. Isolation transformers are generally (but not all) refers to a transformer 1: 1. Due to the secondary universal land. There is no potential difference between the secondary wire and the earth, safe use. It is often used as a maintenance power supply.

The power supply to control the transformer and tube equipment is also an isolation transformer. Such as electronic tube megaphones, tube radios and oscilloscopes, and power supplies such as the lathe control transformer are isolated transformers. For safe maintenance, the isolation transformer is commonly used in 1: 1. There is also use in air conditioners.

First of all, we used the AC power supply voltage to be connected to the earth, and there is 220V potential difference between the other and the earth. People contact will generate electric shock. The secondary of the isolation transformer is not connected to the earth, and there is no potential difference between any two-wire and the earth. There will be no electric shock in any one of the people, so it is safe.

Second, the output end of the isolation transformer is completely "disconnected" isolation, which effectively plays a good filtration of the input end of the transformer (the power supply voltage supplied by the grid). Thus, a pure power supply voltage is provided to the electric device.

Another use is anti-interference. It can be widely used in subway, high-rise buildings, airports, station, terminal, mineral enterprises and tunnel output and other places.

Isolation transformers refer to transformers that input windings and output windings in electrical, to avoid accidental simultaneously touching with electricity (or metal components that may be charged due to insulation) and the principles and ordinary The dry transformer is the same, but also the principle of electromagnetic induction, mainly isolating a power supply circuit, floating in the second loop to ensure electricity safety.