The Principle Of Dry Type Transformer

The working principle of cast coil dry type transformer is the principle of electromagnetic induction. When the original coiled wire is connected to the AC, there is AC, and through the original coiled wire, the AC will produce the AC on the closed iron core. According to the principle of electromagnetic induction, the AC magnetic flux induces electrification through the primary winding and the secondary winding. When the secondary winding of the transformer is connected to the load, the inductive electrification in the secondary winding is equal to the electrical electrification of the load. Correctly select the lines of the transformer and the number of coils of the secondary winding, and the use of dry-type transformers can change the AC voltage and current. When the AC voltage on the primary side of the transformer is U1 and the AC current is I1, the voltage U2 and the current I2 generate the AC magnetic flux of the iron core through the secondary winding. The case of U 1 U 2 becomes a step-down transformer, which is the case of U 1

Epoxy resin dry-type transformers have a great impact on environmental conditions and cannot be used outdoors without an IP 23 protection rating. Therefore, there are certain requirements for the installation environment of dry-type transformers. Not only to ensure the ventilation of the environment, but also to keep the environment clean to prevent dust from entering the device. In addition, the dry-type transformer is also equipped with protection devices such as snakes and rats. When installing the dry-type transformer, be sure to install a protective cover. The external decoration of these protective devices is made of steel, aluminum alloy, stainless steel and other materials. Suitable for indoor IP 20 protective film, effectively preventing ≥12.5 mm solid foreign objects from intruding into the device, can prevent the harmful effects of 15° angle dripping.