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With the development of information and network technology, the new generation DC-AC power supply, sine-wave inverter, are widely used in telecom, mobile, air field, banking, office, industry, hospitals, military and research fields. By using battery as DC input, and sine-wave AC output after inverter, the output voltage and frequency of Sine-wave inverter are very steady and can work continuously, avoiding the problems of power break, voltage unsteady, noise and lightning invasion. With the sine-wave inverter can guarantee the utility and equipment reliable work and system safety. Sine-wave Inverter is a kind of DC-AC power supply, the output wave is pure sine-wave by SPWM technology, with the features of fast reaction, low wave distortion, output voltage and frequency steady. This inverter is also equipped with the protections of over DC input, low voltage, over AC output, overload, circuit shortage and internal over heat, these can guarantee good performance, working reliability and other technical specifications. Sine-Wave inverter is designed based on center control system to meet the power supply requirements of computer and other terminals, mainly applying for: l Various managing equipment of digital communication system, including terminal, monitor and cashier equipment. l Server, intelligent platform of information network system, power system and instrument. l Suitable for system which has main power of DC and require AC power system. Features of Inverter: a) With micro-CPU control, SET-IVS6000 Series inverter is an intelligence model product, good designing and reliability are the advantages. b) SET-IVS6000 series inverter is adopting SPWM technology, with the output of stabilized voltage and frequency, pure sine-wave. c) SET-IVS6000 series inverter has good compatibility, built-in by-pass switch, high overload feature for reliable and continuous power supply. d) SET-IVS6000 series inverter can be AC power type and DC power type: AC power type means the city power supply is main when the city power is normal, when city power is off, inverter comes into work state. DC power type means the inverter power supply is main when the city power is normal, when inverter power is off, city power comes into work state automatically. e) With the excellent designing, SET-IVS6000 series inverter can be auto switched to bypass on the running state, its easy to maintain and replace the battery without effecting load power supply. f) In case there is battery voltage high/low or overload, the overload warning shutdown output, when battery voltage recovers normal, battery voltage recovers; power supply output will auto recovers in 50 seconds after overload off. This function is very suitable for the communication station in which there is no person on duty. g) SET-IVS6000 series inverter can support network communication system, power working state can be monitored by the supervision software. h) SET-IVS6000 series inverter provides with two dry connectors which can be used for DC input fault checking and AC output problem warning.