How to change single-phase electricity into three-phase electricity

March 17, 2023

The household uses an AC single-phase motor with a voltage of 220 volts. The factory uses a three-phase motor with a voltage of 380 volts. How do you want to convert single-phase electricity into three-phase electricity?

1. Changing single-phase electricity into three-phase electricity requires raising the voltage, which can be achieved through an inverter, that is, a device that can directly change the current and convert direct current into alternating current, called an inverter/converter. This voltage converter device can convert 220 volts of AC power into 380 volts of AC power, which is also a relatively easy way to operate. Because it has a circuit and a microprocessor to control the circuit, it adds pwm modulation technology. Through the microprocessor, it can control six high-power crystals, and then import and output them in turn in a three-phase sine wave manner, turning them into three-phase alternating current.

2. The second method is achieved through a unidirectional inverter, which is also a commonly used method. The triangular connection method needs to be adopted, and its working principle is similar to that of the inverter, which can change the mains power into three-phase power.

Transformer Converter Inversion

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