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What kind of material is used in the transformer core?

2019-04-04 14:02:12

The types of transformer core materials are as follows:
1. Pure iron, mild steel and silicon-free steel;
2. Silicon steel sheet;
3. Iron-nickel alloy (permalloy);
4. Iron aluminum alloy;
5. Amorphous alloy;
6. Microcrystalline alloy
Transformer core
The role of the transformer core is to strengthen the magnetic coupling between the two coils. In order to reduce the eddy current and hysteresis loss in the iron, the transformer core is laminated by a lacquered silicon steel sheet; there is no electrical connection between the two coils, and the coil is wound by an insulated copper wire (or aluminum wire). One coil is connected to the AC power source called the primary coil (or the primary coil), and the other coil is called the secondary coil (or the secondary coil). The actual transformer is very complicated, and copper loss (coil resistance heat), iron loss (core heat generation), and magnetic flux leakage (air-closed magnetic induction line) are inevitably present. For the sake of simplicity, only the ideal transformer will be described here. The ideal transformer is established by ignoring the leakage flux, ignoring the resistance of the primary and secondary coils, ignoring the loss of the core, and ignoring the no-load current (the current in the coil of the primary coil of the primary coil). For example, when the power transformer is running at full load (the rated output power of the secondary coil), it is close to the ideal transformer.

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