Parameters of The Power Transformer
The parameters of the power transformer include power, secondary voltage and current. The following are detailed descriptions:
The power of the transformer is proportional to the square of the iron core cross section, the larger the iron core cross section, the greater the transformer power. The power is generally marked directly on the transformer with text.
2. Secondary voltage
Refers to the rated output voltage of the secondary winding of the power transformer. A power transformer with multiple secondary windings can have multiple secondary voltages. A transformer with a secondary voltage that meets the requirements should be selected as required.
3. Secondary current
It refers to the maximum current that the secondary winding can provide, and the secondary current must be higher than the actual current value of the circuit when selected. The figure below shows the secondary voltage and current value of a power transformer, and the secondary voltage and current are generally directly marked on the transformer with text.
The primary voltage of commonly used power transformers is generally AC 220V, and there are also AC 380V. The parameters of the power transformer include no-load current, insulation current, insulation resistance, etc., and these parameters can be ignored when purchasing a finished transformer.
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