What are the uses of dry-type cast resin transformers in cities?
Dry-type cast resin transformers are a type of transformers with high electrical strength, heat resistance and mechanical strength. They are products that cities use for grid retrofits. They are particularly suitable for high-rise buildings, power stations, airports and commercial centers, where higher requirements are placed on explosion-proof, fire-proof and moisture-proof properties. Dry-type transformers can also be used for terminal power supply and ring network power supply, etc. The whole conversion work is very convenient, which not only ensures the reliable performance of the power supply, but also ensures the flexibility of use. The centralized design of the transformer casing 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 cast resin transformers do not require distribution rooms. You can place the dry-type transformer directly indoors or outdoors, or install it in the greenbelt of the street. This can not only effectively ensure personal safety, ensure power supply facilities, but also properly decorate the environment. For the impedance of dry-type transformers, it mainly depends on the physical structure of the transformer. The main factors affecting the impedance of a transformer are the material type and quantity of the core and the composition size of the winding wires, 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 whole impedance measurement method is mainly to short-circuit the low-voltage winding and continuously increase the variable voltage until the current of the low-voltage winding reaches a certain value. Then the impedance value can be obtained in the dry-type cast resin transformer, and the rated value of the high-voltage winding can be calculated by calculating to determine and guarantee the overall voltage percentage.
