What are the uses of dry-type transformers in cities

Dry-type transformer is a type of dry-type transformer with high electrical strength, heat resistance and mechanical strength. They are products of cities for grid transformation. They are especially suitable for high-rise buildings, power stations, airports and commercial centers, where explosion protection, fire protection and moisture resistance are more required. Dry-type transformers can also be used for terminal power supply and ring network power supply, etc., the whole conversion work is very convenient, not only to ensure the reliable performance of the power supply, but also to ensure the flexibility of use. The centralized design of the shell of the transformer has the advantages of low noise, high reliability, small size, low loss, good insulation, light weight, good sealing, beautiful appearance and compact structure.
Mainly dry-type transformers do not require a distribution room. You can place the dry-type transformer directly indoors or outdoors, or you can install it in the green belt of the street. This can not only effectively ensure personal safety, not only ensure power supply facilities, but also properly decorate the environment. The impedance of dry-type transformers mainly depends on the physical structure of the transformer. Transformer, the main factors affecting the impedance of the transformer are the type and quantity of material of the iron core and the composition of the winding wire.
size, as well as the degree of magnetic coupling and the number of turns between the two windings. Impedance can be expressed as a percentage, the entire impedance measurement method is mainly to short-circuit the low-voltage winding, continuously increase the variable voltage, until the low-voltage winding current reaches a certain value, and then dry in the transformer can obtain the impedance value, and can be determined and guaranteed by calculating the rating of the high-voltage winding.