Voltage transformer by magnetic circuit structure: single-stage voltage transformer: primary and secondary windings (can be set as desired with multiple secondary windings wound on a core, the core of our country and below ground. voltage levels are single-stage; cascade voltage transformers: primary winding turns into several identical units connected in series between phase and ground Hengshui high voltage transformers, each unit has a separate core, with a plurality of cores Langfang high voltage transformer, and the iron core with a high voltage, secondary winding (as required may be provided a plurality of secondary windings and connected in the last unit. the voltage level of the common structure of such Type; Combined Transformer: Transformers by a combination of voltage and current transformers and integrally formed called modular transformers, there are the combination of electrical and supporting the production of transformers transformers transformers called modular type difference. : The most important difference is the status of their work in normal operation, mainly in the following aspects: 1 voltage transformer flux density close to saturation during normal operation, and fault when the magnetic flux density is decreased; current transformer normal When operating flux density is low, and when a short circuit due to a short-circuit current becomes large, so that the magnetic flux density increased significantly, sometimes even far more than the saturation value .2, voltage transformers are used to measure the high voltage grid special After the transformer, it will be a high voltage required for the lower voltage ratio converter, and then connect to the meter up to measure voltage transformer primary voltage regardless of how many volts, while the secondary voltage are generally defined as 100 volts to supply voltmeter, power meter and kilowatt-hour meter and relay coil voltage required voltage .3, can short-circuit current transformer secondary, but not open; voltage transformer secondary can open Changzhou high voltage transformer, but not short-circuit. The large proportion of current required to convert small current transformer electrical equipment, called the current transformer. Current general provisions of the current transformer secondary side of the 5-amp or a security, in order to supply meter, power meter, kilowatt-hour meter and relay .4 current coil current for the load on the secondary side, the internal impedance of the voltage transformer primary is small or even negligible, can be considered a large voltage transformer is a voltage source; a current transformer and the internal resistance was great, and even can be considered as a current source of infinite resistance. Tianjin high voltage power transformers _ Huayi (certified) _ transformers supplied by Huayi power plant in Xi'an, Xi'an Huayi power plant (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 a better future for Huayi electricity.