Single phase in, Single phase out. double-conversion low frequency machine, IGBT full-bridge + inverter isolation transformer output. double-conversion online design, UPS output frequency tracking, phase-locked voltage regulator, filter out noise, low distortion, pure sine wave ,free from fluctuations of grid power supply, so that UPS on the user equipment to provide a more comprehensive and perfect protection. Transfer time between AC mode to Battery mode 0ms . The standard meet the precision equipment for high power requirements. Strong protection of the load he standard UPS with output isolation transformers, anti-interference , to provide all-around protection. A very small voltage difference, to meet the power needs of precision instruments and equipment to protect the safe operation of equipment. Load compatibility, can be applied to a variety of different types of loads, to meet the needs of various circumstance. Environmental adaptability Wide voltage input range, to avoid frequent switching to battery-powered, adapted to the harsh power environment, ensure access to a variety of fuel generators can work stably. comprehensive and reliable protection Power-on self-diagnosis function, to avoid the potential risk of failure for the UPS hidden trouble With a variety of protection functions such as output overload protection, output short circuit protection, inverter over-temperature protection, battery under-voltage protection and battery over-charge protection, which greatly ensure the stability and reliability of the system operation. Built-in static electronic bypass switch, when the UPS fails, can be transferred to the bypass work without interruption by the electricity supply to the load, and provide alarm function. DC start function, you can start the UPS without grid power to meet the emergency needs of users.