What are the classifications of power transformers
Power transformer is a common electrical component in electrical engineering, used to convert AC voltage into the required voltage. According to its use and performance characteristics, power transformer can be divided into a variety of different classifications, mainly including the following categories:
1. according to the use of classification:
- General-purpose transformer: applicable to general household appliances and industrial equipment, mainly used to adjust the voltage size.
- Control transformer: used to regulate the voltage and current in the circuit, usually used in automatic control systems.
- Isolation transformer: mainly used to isolate the output and input electrical connection, to ensure the safety of equipment and personnel.
- Flyback transformer: used to supply power to switching power supply and other electronic equipment, with high efficiency and stability.
2. Classified according to structure:
- Core transformer: composed of iron core and winding, suitable for high power transformer.
- Toroidal transformer: the internal winding is ring-shaped, suitable for small power transformer.
- Open transformer: simple structure, good heat dissipation, but poor safety.
- Enclosed transformer: has good insulation performance and safety, suitable for some special environment.
3. according to the working frequency classification:
- Low-frequency transformer: working frequency is generally 50Hz or 60Hz, applicable to general household appliances.
- High-frequency transformer: higher frequency, generally in the tens of kHz to hundreds of kHz, applicable to electronic equipment and communication equipment.
4. according to the output voltage classification:
- Single-phase transformer: output for single-phase voltage, applicable to general household appliances.
- Three-phase transformer: output for three-phase voltage, suitable for high-power equipment and industrial equipment.
5. according to the working principle classification:
- Magnetic isolation transformer: through the magnetic field to transfer energy, has good isolation performance and stability.
- Electronic transformer: energy conversion through electronic devices, with high efficiency.
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power transformers
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