Detailed explanation of the principle of transformer
- Categories:Industry Dynamics
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- Time of issue:2022-01-14
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(Summary description)A single-phase transformer can convert high-voltage power supply into single-phase low-voltage for use by various equipment. For example, AC 6600V high voltage can be converted into AC 220V low-voltage through a single-phase transformer to supply power for lighting or other equipment. Single-phase transformers have the advantages of simple structure, small size and low loss, and are suitable for use in low-voltage distribution lines (below 60Hz) with small loads. Figure 4-5 is a functional schematic diagram of a single-phase transformer. Wonderful demonstration Figure 4-5 Functional diagram of single-phase transformer Three-phase transformer is mainly used for step-up or step-down in three-phase power supply system.
Detailed explanation of the principle of transformer
(Summary description)A single-phase transformer can convert high-voltage power supply into single-phase low-voltage for use by various equipment. For example, AC 6600V high voltage can be converted into AC 220V low-voltage through a single-phase transformer to supply power for lighting or other equipment. Single-phase transformers have the advantages of simple structure, small size and low loss, and are suitable for use in low-voltage distribution lines (below 60Hz) with small loads. Figure 4-5 is a functional schematic diagram of a single-phase transformer. Wonderful demonstration Figure 4-5 Functional diagram of single-phase transformer Three-phase transformer is mainly used for step-up or step-down in three-phase power supply system.
- Categories:Industry Dynamics
- Author:
- Origin:
- Time of issue:2022-01-14
- Views:0
A single-phase transformer can convert high-voltage power supply into single-phase low-voltage for use by various equipment. For example, AC 6600V high voltage can be converted into AC 220V low-voltage through a single-phase transformer to supply power for lighting or other equipment. Single-phase transformers have the advantages of simple structure, small size and low loss, and are suitable for use in low-voltage distribution lines (below 60Hz) with small loads.
Figure 4-5 is a functional schematic diagram of a single-phase transformer.
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Figure 4-5 Functional diagram of single-phase transformer
The three-phase transformer is mainly used for step-up or step-down in the three-phase power supply system. The commonly used one is to change the high voltage of several thousand volts into a low voltage of 380V to provide power supply for electrical equipment. Figure 4-6 is a functional schematic diagram of a three-phase transformer.
Transformers use the principle of mutual inductance when inductive coils are close together to transfer electrical energy or signals from one circuit to another. A transformer is a device that transforms voltage. It is the main function of a transformer to increase or decrease the AC voltage.
Figure 4-7 is a schematic diagram of the voltage conversion function of the transformer.
Figure 4-6 Functional diagram of three-phase transformer
Figure 4-7 Schematic diagram of the voltage conversion function of the transformer
The transformer can realize impedance transformation through the primary coil and the secondary coil, that is, the turns ratio of the primary and secondary coils is different, and the impedance of the input and output is also different. Figure 4-8 is a schematic diagram of the impedance transformation function of the transformer.
Figure 4-8 Schematic diagram of the impedance transformation function of the transformer
According to the transformation principle of the transformer, the AC voltage of the primary part is "induced" to the secondary winding through the principle of electromagnetic induction, without the actual electrical connection, so the transformer has the function of electrical isolation.
Figure 4-9 is a schematic diagram of the electrical isolation function of the transformer.
Figure 4-9 Schematic diagram of transformer electrical isolation function
By changing the connection of the primary and secondary windings of the transformer, the phase of the input signal of the transformer can be easily inverted. Figure 4-10 is a schematic diagram of the phase transformation function of the transformer.
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