Select the appropriate fields in different sectors of the electricity power transformer standards are not the same. 380 power transformers in life, generally two-phase alternating current. Factories in three phases. An all total more than 50 kinds of power transformer 15v power transformer, in different places, using the corresponding power transformer is very important. Take a small high-current power transformer is very dangerous, easily hot fire. Large power transformers connected to a small electric current it is a waste, and even lead to "swallow electricity" phenomenon. Household power transformer power slightly, choose low-power cost-effective. In low power, the circuit configuration according to needs, to select a different shape. The main reason causing several power transformer temperature does not rise to normal: the first one is the deterioration of the thermal conditions of the power transformer. Refers to the heat sink is damaged. The second is a short circuit of the power transformer. Usually around the point coil. The third is that the short-circuit power transformer core part formed. The fourth is the power transformer magnetic flux leakage phenomenon may occur. The fifth is the power transformer overload long run, it may cause an accident. Switching power supply transformer, NJWTT Wal Teng Technology (certified), power transformers supplied by Nanjing Wolfowitz Proton Technology Electronic Equipment Factory. Nanjing Wolfowitz Proton Technology Electronic Equipment Factory (www.njwtt.com) is Nanjing, leader of the transformer, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In NJWTT Wal Teng technology leadership with the staff warmly welcome all inquiries negotiations to create fertile Teng Technology NJWTT a better future.