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What are the characteristic parameters of the transformer core?

2019-04-01 15:25:14

1. Working frequency Transformer core loss has a great relationship with frequency, so it should be designed and used according to the frequency of use. This frequency is called the working frequency.

2. Rated power At the specified frequency and voltage, the Transformer core manufacturer transformer can work for a long time without exceeding the output power of the specified temperature rise.

3. Rated voltage Refers to the voltage allowed on the coil of the transformer. It shall not be greater than the specified value during operation.



4. The voltage ratio refers to the ratio of the primary voltage to the secondary voltage of the transformer, and the difference between the no-load voltage ratio and the load-to-voltage ratio.

5. No-load current When the secondary circuit of the transformer is open, there is still a certain current in the primary. This part of the current is called no-load current. The no-load current consists of magnetizing current (generating magnetic flux) and iron loss current (caused by core loss). Transformer core manufacturer introduction For a 50Hz power transformer, the no-load current is basically equal to the magnetizing current.

6. No-load loss refers to the power loss measured at the primary when the secondary of the transformer is open. The main loss is the core loss, followed by the loss (copper loss) of the no-load current on the primary coil copper resistance, which is small.

7. Efficiency refers to the percentage of the ratio of the secondary power P2 to the primary power P1. Generally, the higher the rated power of the transformer, the higher the efficiency.

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