With the rapid development of photonics technology Zhenjiang high voltage transformers, many developed countries have already turned to technology using optical sensor technology and electronics to develop new methods of electronic current transformer Taizhou high voltage transformers, current transformers referred photoelectric . International Electrotechnical Commission has published a standard electronic current transformer. Xuzhou meaning electronic transformer high voltage transformer, in addition to including the photoelectric transformer, also includes a variety of other electronic test principle of voltage and current sensors. Factors transformer error and the influence of the error (1) CT excitation loss and errors due to magnetic saturation of the impact itself, I1 measured value KNI2 in both numerical and phase difference. Respectively ratio error and angle error. Error factors affect the primary current I1; I1 is small when the error is large. So when I1 = (100-120%) I1e CT error is minimized. Dimensioning and structure; secondary load impedance; power factor; (2) PT error because of the excitation current and the impedance magnitude and phase measurements are error. The same as the ratio error and angle error. Error factors core structure dimensions; the secondary side load; power factor; the primary voltage. Should vary the power factor and a secondary side voltage is limited within a certain range. Changzhou high voltage power transformers _ Huayi (certified) _ high voltage 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.