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what is the three phase power transformer

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  • Time of issue:2022-10-29
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(Summary description)Three phase transformer is a combination of three single-phase transformers with the same capacity. It has three iron core pillars, each of which is surrounded by two coils of the same phase, one is a high-voltage coil, the other is a low-voltage coil.

what is the three phase power transformer

(Summary description)Three phase transformer is a combination of three single-phase transformers with the same capacity. It has three iron core pillars, each of which is surrounded by two coils of the same phase, one is a high-voltage coil, the other is a low-voltage coil.

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2022-10-29
  • Views:20000
Information

Three phase transformer is a combination of three single-phase transformers with the same capacity. It has three iron core pillars, each of which is surrounded by two coils of the same phase, one is a high-voltage coil, the other is a low-voltage coil.

A three-phase transformer is a generator that generates an equal amplitude, equal frequency and 120 ° phase difference potential, which is called a three-phase generator; The three-phase generator is used as the power supply, which is called three-phase power supply; The circuit powered by three-phase power supply is called three-phase circuit. U. V and W are called three-phase. The voltage between phases is line voltage, and the voltage is 380V. The phase to central line is called phase voltage, and the voltage is 220V. Working principle of three-phase transformer: the basic working principle of transformer is electromagnetic induction principle.

When the AC voltage is applied to the primary side winding, the AC current flows into the winding to generate excitation, generating alternating magnetic flux in the iron core. This alternating magnetic flux not only passes through the primary side winding, but also passes through the secondary side winding, which causes induced electromotive force in the two windings respectively. At this time, if the secondary side is connected to the load of the external circuit, there will be AC current flowing out, and then electric energy will be output.

What is the function of three-phase transformer? Three phase transformers have different service conditions, installation sites, voltage levels, capacity levels, structural forms and cooling methods, so they should be classified according to different principles. Transformers are divided into power transformers (step-up transformers, step-down transformers, distribution transformers, station transformers, etc.), special transformers (furnace transformers, rectifier transformers, welding transformers, etc.), instrument transformers (voltage transformers, current transformers), high-voltage transformers and voltage regulators for testing, etc.

 

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