Overview: EA800 series UPS is for the high reliability requirements of China power grid environment and network systems, medical systems of power to the new digital technology developed in the third foundry frequency pure-line intelligent UPS. The system uses on-line double conversion topology architecture, completely eliminating the various interference grid; AC / DC input has a harmonic suppressors, UPS eliminates harmonic pollution on the grid; DC / AC converter using pulse width modulation SPWM technology, IGBT power module and output isolation transformer, so that the UPS output frequency stabilization, filter out noise, interference from power fluctuations and low distortion of pure sine wave power. This series UPS has load capacity, load compatibility, the mains input voltage, wide frequency range, the output without switching time, superior generator compatible matches and other characteristics, to meet the needs of a variety of application environments. Perfect protection circuit to improve system stability and reliability; advanced battery float charging technology, according to characteristics of the battery charging curve, greatly extending battery life; goodwill of Chinese LCD interface design, makes machines to communicate Zero; UPS and between PC via RS232 communication port can be communication, enabling users to easily understand the working conditions UPS, historical records and other control of the UPS, while through the remote network monitoring, remote UPS monitoring and management, truly unattended function. EA800 series can be composed of hot backup system, improve system reliability. Application areas: data processing center, computer room, ISP services, telecommunications, finance, securities, transportation, taxation, health care systems, etc. Features: 1. High Reliability 1) Using digital control technology and perfect protection circuit, good stability power devices using imported IGBT module design, strong overload and impact resistance 2) double conversion technology and static electronic bypass technology truly zero switching time is extremely wide input voltage and frequency range, reducing the chance of the battery discharge, extend battery life 3) the use of advanced automatic conversion constant current charging technology and float technologies to maximize activation of the battery 4) with superior cold start, in the absence of mains case, full of cold start to meet the emergency needs of users 5) output to the grid for precise zero phase synchronization, static electronic bypass to improve reliability 2. High compatibility 1) mains input wide range and frequency range, reducing the UPS input mains requirements, compatible with any form of electricity, including applicable to industrial power generation, wind power and other application areas. 3. High humane 1) goodwill of the man-machine interface design with Chinese LCD display, UPS operational status at a glance, makes machines to communicate zero distance. 2) LCD display: machine type, input and output voltage, frequency, load capacity, battery capacity, the internal temperature, work status, work status and fault 3) maintenance is simple: the internal use of modular design, structure concise, fluent, 4. High-definition environmental protection 1) The machine adopts advanced anti-electromagnetic interference, in line with international standards, with good electromagnetic compatibility, minimize or even eliminate the equipment caused by electromagnetic interference. 2) input and output features harmonic filters to minimize UPS harmonic interference on the grid.