By end-use, voltage transformer is divided into two types of measurement and protection. Electromagnetic induction voltage transformer. It works the same transformer. The basic structure is the core and the primary and secondary windings. It is characterized by small capacity and relatively constant, close to the no-load condition during normal operation. Impedance voltage transformer itself is small zero sequence current transformer, when the secondary short-circuit occurs, the current will increase dramatically and burned coil. For this reason, the primary voltage transformer connected with a fuse, the secondary ground, in order to avoid the former, while the secondary damage to the insulation transformer factory direct, high potential for accidents caused by the secondary side appears. The same equivalent circuit electromagnetic induction voltage transformer equivalent circuit of the transformer. Capacitive voltage divider voltage transformer. Made on the basis of a capacitive divider. Capacitive coupling capacitor voltage transformer multi-carrier communication systems combined power to simplify the system and reduce the cost. At this point, it must meet the requirements of the communication on the run. Voltage transformer according to the structure classification, there are oil-filled and dry-type and three-core and single-phase five-column, as well as fully insulated and semi-insulating type. Multi-tap current transformer. This type of current transformer primary winding unchanged during the winding secondary windings, increase the number of taps to obtain a plurality of different ratio. It has a core and a fixed number of turns of the primary winding, the secondary winding with insulated copper wire wound on a package to the core insulation tube, tap of the secondary winding of the transformer opening different ratios, connected to the wiring terminal block transformer tap settings of each respective terminals, thus forming a plurality of variable ratio, the advantages of such a current transformer is based on the load current ratio, change the wiring of secondary terminals to change the ratio without the need to replace the current transformer, to use more convenient. Transformer factory outlets | Huayi Electric Power (certified) | Hohhot transformer provided by the Xi'an Huayi power plant. Xian Huayi Electric Power Equipment Factory (www.xahy.com) is a leader in Xi'an high-voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Huayi Electric Power leadership with the staff warmly welcome all inquiries negotiations to create Huayi electricity better future.