Generator Model: 21429783 high-frequency machines and machine-frequency comparison: small size, light weight, high efficiency (low operating costs), low noise ESD, suitable for office space, high cost (under the same power, low price ) ESD5520E, space, the environment is small, relatively speaking, the impact (SPIKE) and transient response (TRANSIENT) high frequency charger for copiers, laser printers and motors caused by susceptible, due to frequency machine transformer to City electrically isolated from the load, mains under harsh environment, frequency machine provides high frequency performance than more secure and reliable protection, in some cases, such as medical and other ESD5221, require isolation device charger, therefore, industrial, medical and transportation applications, frequency machine is a better choice to select between the two trade-offs depending on the installation environment, and other conditions of the customer's load charger: 3972730 Those who questioned the reliability of the high-frequency machine, you can certainly, is the brand-name manufacturers of small charger. They own technology limited ESD5550E, inadequate testing equipment. Therefore, in the course of the development of high-frequency machine is limited by the development level of performance can not be perfect body, which can only be introduced in the late 1980s Taiwanese manufacturers to improve technology infrastructure work on the frequency machine. frequency machine to the development of high-frequency machine is very important that the interference problems of high frequency switching control to the front of technology, it is recommended that the selection of areas such as capital adequacy words or: make use of the power aspect frequency machine, high frequency machine 6KVA following ESD5550E, faithful electromechanical (certified), ESD provided by the Dongguan City, South City Zhongxin Electrical and Mechanical Services Department. Dongguan City, South City Zhongxin Electrical and Mechanical Services Department (zhongxin888.net.cn) is Dongguan, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Electromechanical faithful leadership in the staff warmly welcome all inquiries negotiations to create a better future for electromechanical faithful.