The transformer uses the principle of electromagnetic induction to change the installation of AC voltage. The main components are primary coils, secondary coils and iron hearts (magnetic cores).In electrical equipment and radio circuits, it is often used as a lifting voltage, matching impedance, and safe isolation.
Single -phase transformer wiring
The single -phase transformer also divides the wiring method is mainly star and triangle. Because different groups of load are suitable for different conditions, there are more than one group.
Single -phase transformer impedance
1. The impedance voltage of the transformer (the current standard is: "short -circuit impedance") standard value is represented by percentage (standard value).2. The short -circuit impedance of the transformer is related to many factors.3. This short -circuit impedance is an important technical indicator for users.4. The short -circuit impedance of the transformer is his own impedance.5. In addition, short -circuit impedance also affects the manufacturing cost of the transformer.
Single -phase transformer capacity
As of now, Hengchang Company has successfully developed the worlds first single -phase 400,000 kVA/1100 kV generator transformers, the worlds first single -pillar structure 160 mega lack/1100 kV high -voltage parallel anti -electrocomputer, 1 million kV safety/1000 kV power transformers, 500 kV worlds largest 1 million kVA on -site assembly transformers, and 500 kV worlds largest 860,000 kV security combined transformer, etc., represents the development direction of the world energy -saving technology development.High -tech products.
Single -phase transformer model
The power transformer model description is as follows: The model of the transformer is usually composed of symbols such as the number of materials such as phase, cooling mode, pressure regulation method, winding wire core, and transformer capacity, rated voltage, and winding connection.The meaning of the following power transformer type number: DSJLZSCSGJMBYDBK (C) DDGD-single-phase S-three-phase J-oil soaking L-winding is aluminum line ZSelf-Cold JMB-Local Lighting Transformer YD-Test Single Transformer BF (C) -Coloning Transformer (C is a C-type iron core structure)
Single -phase transformer principle
Single -phase transformers, first winding and secondary winding, are single -phase winding transformers.Single -phase transformers are simple, small, and low in loss. They are mainly iron loss and are suitable for application and promotion in low -voltage distribution grids with less load density.

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