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With the double-conversion online design adopted, the UPS output is made into a frequency tracking, phase-locked and voltage-stabilized, noise filtered-out and non-interference from the electric grid fluctuations purifying sine wave power supply, so as for the UPS to provide more comprehensive and perfect protection of the users' equipment.
Zero switching time for the output, so as to meet the requirement of the precision equipment for the high standards.
The input power factor correction (PFC) technology is adopted, so that the input power factor is higher than 0.95, thus having improved the utilization rate of the electric energy, eliminated completely the harmonic pollution of the UPS to the commercial electric grid and reduced the running costs of the UPS.
High Overall System Reliability:
The microprocessor is adopted for the control, which generates directly the high frequency pulse width modulation wave (SPWM) to control the inverter of the UPS, thus having simplified the control circuit of the UPS and improved the stability of the UPS.
The digital control technology is used, so as to ensure the consistency and reliability of the UPS.
Strong Environmental Adaptability:
The wide input voltage range is high up to 140V ~ 304V, so as to avoid frequent switchover of the batteries and adapt to the areas where there is adverse environment for the electric power. When used for half load, the input voltage may be low to 118V at minimum without need for switchover of the batteries. (1KVA ~ 3KVA)
Input frequency range (50Hz ± 10%), so as to ensure the stable working, when connected with any of the various fuel generators, thus having met the requirement of the users for their use of the fuel generators.
High Optimized Performance of Batteries:
The intelligent battery management (ABM) technology is adopted, so as to extend the service life of batteries and reduce the times of battery maintenance.
The advanced constant-current and constant-voltage automatic conversion charging technology is adopted, so as to maximize the activation of the battery and save the charging time, thus extending the battery service life.
Comprehensive and Reliable Protection:
Provided with the self-diagnosis function at startup, so as to discover any hidden troubles in the UPS and avoid any negligence.
Provided with such multiple function protection as AC input over- & under-voltage
Protection, the output overload, the short circuit protection, the overheating protection of inverters, the battery undervoltage pre-warning protection and the battery overcharging protection, thus having greatly ensured the system stability and reliability.
Provided with a bypass function, when there is a trouble occurred in the UPS, it will be switched over to the bypass working state without interruption, in which the commercial power supply will continue to supply the electricity to the load and provide the alarm information.
DC start function, the UPS is started directly in case of no commercial power supply available, so as to meet the emergency needs of users.
Fan intelligent protection, the UPS adjusts automatically the fan rotation speed according to the load capacity, so as to extend the service life of the fan and, when the fan is abnormal, the UPS will carry out the detection automatically and send an alarm displayed.
Network Management Humanization:
The LED display panel provides accurately the UPS working environment and working status information and, through the combined display, the causes of the fault and trouble in the UPS can be quickly judged and determined, so as to make the maintenance of the UPS more convenient.
Via the RS232 interface and in coordination with the UPS intelligent monitoring software, communication can be carried out with the computer and the various parameters of the UPS are displayed clearly on the communication interface.
main parameter:
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