Auto -coupled transformer refers to its winding is the transformer on the same winding of primary and secondary sections.Based on the structure, it can also be subdivided into adjustable voltage and fixing.Auto -coupled coupling means the meaning of electromagnetic coupling. Ordinary transformers are transmitted by electromagnetic coupling by the original auxiliary coil. The original auxiliary edge does not have a direct power connection.It is part of the high -pressure coil.Protective equipment such as auto -coupled transformers in communication lines can also be used.Here are related knowledge of auto -coupled transformers and other protective transformers.
Auto -coupled transformer model
1. Decreased winding capacity, less consumed materials, and low cost; 2. The transformer weight is light and the size is small, which is convenient for transportation and installation. 3. The copper loss and iron loss of auto -coupled transformers are reduced than the double winding transformer, so the benefits are higher.It generally uses industrial and mining enterprises, as well as places to enter/export equipment.
Auto -coupled transformer calculation
When calculating auto -coupled transformers, special attention should be paid to the following characteristics: 1. It can be considered that auto -coupled transformers are restructured by ordinary dual -winding transformers. Therefore, its calculation method is generally the same as the calculation method of ordinary transformers.However, there are some of its own characteristics: 2. Auto -coupled transformers are divided into two parts: public winding and high -voltage end winding.Regardless of whether it is a boost transformer or a lower -voltage transformer, the public winding is a low -voltage winding, that is, 1xee =; the series winding group part is part of the high -voltage end, that is, 21heee+=.(The lowering "X" in the formula represents the low pressure; "H" represents high pressure. The same.) 3. For auto -coupled transformers, its variable ratio can be used)/(21nnn+or 121/) (nnn+.
What is auto -coupled transformer
The self -coriander transformer is a transformer with a variable ratio.Auto -coupled coupling means the meaning of electromagnetic coupling. Ordinary transformers are transmitted by electromagnetic coupling by the original auxiliary coil. The original auxiliary edge does not have a direct power connection.It is part of the high -pressure coil.Protective equipment such as auto -coupled transformers in communication lines can also be used.
Auto -coupled transformer booster startup
Auto -coupled transformer boost start refers to the use of auto -coupled transformers to reduce the starting voltage that is added to the motor stator winding when the motor starts.After the motor is started, the motor is separated from the auto -coupled transformer, so as to press the normal exercise at full pressure.This antihypertensive startup is divided into two types: manual control and automatic control.
Principle
Basic principles: Two or more coils on a closed iron core, when a coil is connected to the AC power supply (that is, the primary coil), the coil flows through the interchange current.Magnetic field, the main magnetic flux of the intercourse generates its own inductive electromotive momentum in the primary coil, and at the same time, the inductive intestines in the other coil (that is, the secondary coil).The relationship between the primary and secondary coils is changed by changing the relationship ratio ratio ratio ratio ratio of the first and secondary coils, and the voltage transformation is achieved.

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