In order to transmit electricity power system, often using AC voltage, high current loop power sent to the user Baoji high voltage transformer, can not be directly measured with instruments. The role of transformer transformer that AC voltages and currents can be reduced in proportion to the value of direct measurement instrument to facilitate direct measurement instrumentation Tongchuan high voltage transformer, while providing power for the protection and automatic device. Power systems is to deliver power transformer high voltage, high current information to a special transformer low-voltage, low-current measurement of the secondary side, measuring instruments and relay protection, automatic device, is a system and secondary system The contact element of the primary winding connected to the grid, the secondary winding respectively measuring instruments, protection devices connected to each transformer zero sequence effect: when an electric shock or leakage circuit when a fault occurs, the protection action, cut off the power supply. Use: can be mounted on a three-phase line current transformer Yan'an each high voltage transformer, or let the three phase conductors together through a zero-sequence current transformer can also be installed in a zero-sequence current transformer on the neutral line N use it to detect the three-phase current vector and. Zero sequence current transformer is made of ABS plastic shell, the whole cast resin into a sealed, effectively avoiding rust transformer in the process of long-term use. Good insulation, beautiful appearance. High sensitivity, good linearity, reliable operation, easy installation and so on. Its performance is better than the average zero-sequence current transformer, using a wide range, not only for the electromagnetic relay, but also applies to electronic and computer protection. Yulin high voltage transformer | Huayi Electric Power (certified) | transformer provided by Xian Huayi power plant. Xian 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. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.