Briefly describe the operation principle of three-phase isolation transformer

　　Three-phase isolation transformer refers to a transformer whose input winding and output winding are electrically isolated to avoid the danger of accidental contact with live objects and the ground. The principle is the same as that of ordinary dry-type transformers. The secondary circuit floats to the ground to ensure electrical safety.

　　The role of the three-phase isolation transformer A transformer with two or more independently separated coils can be called an isolation transformer, because the primary and secondary are completely separated (isolated), and the energy is transferred through the magnetic field. The role of the isolation transformer is for safe use. Electricity.

　　In terms of principle, the principle of the three-phase isolation transformer is the same as that of the ordinary transformer. It uses the principle of electromagnetic induction. The three-phase isolation transformer generally refers to a 1:1 transformer. There is no potential difference, it is safe to use, and it is often used to maintain the power supply.

　　Three-phase isolation transformers are not all 1:1 transformers. The power supply for the control transformer and valve equipment is also an isolation transformer. For example, power supplies such as tube amplifiers, tube radios, oscilloscopes, and lathe control transformers are all isolation transformers. In order to maintain the color TV safely, a 1-to-1 three-phase isolation transformer is commonly used. Isolation transformers are used for many purposes, as are air conditioners.

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