Due to the development of information technology, the network has become an indispensable part of people's life and work, the reliability of the digital computer room which constitutes the network has become the key, and the reliable power supply of the computer room is the most important. or switches, such as key commercial equipment or precision instruments uninterrupted operation to prevent computer data loss, UPS Uninterruptible Power Supply telephone communication network interruption or loss of control equipment, today we will look at the uninterruptible power supply related content introduction.
Uninterruptible power supply is in the network anomalies (such as power outages, undervoltage, interference or surge "also known as: Surge current") in the case of uninterrupted electrical load equipment to provide back-up AC power, UPS Uninterruptible Power Supply maintain the normal operation of electrical equipment.
Uninterruptible Power supply Features
1, green, energy-saving, environmental protection: in the world energy pattern changes intensified, the international oil price is volatile, the global energy supply is tense situation, energy saving and environmental protection has become UPS manufacturers to carry out product technology innovation guiding principles. For UPS, the level of input power factor indicates its ability to absorb active power and the degree of influence on the power grid. UPS Uninterruptible Power Supply Reducing the input harmonics of the power supply can not only improve the load characteristic of UPS to the power grid, but also reduce the serious pollution caused by the power grid, and reduce the harmonic interference to other network equipments. Many UPS manufacturers have introduced a product power factor close to 1, UPS Uninterruptible Power Supply can minimize the consumption of reactive energy.
2, High-frequency: Compared to the traditional power frequency ups, high-frequency ups using power factor correction and high-frequency soft switching technology, UPS Uninterruptible Power Supply eliminating the power frequency conversion link, so the operation efficiency is higher, the harmonic pollution of the grid and the reactive power consumption is very small, can meet the standard requirements of the relevant electrical industry at home and abroad. In addition, the high-frequency power converter in reducing the volume and weight of magnetic components, UPS Uninterruptible Power Supply reduce manufacturing costs, curb noise, energy saving and environmental protection, and so on, more and more users recognized.
3, high-power, modular: Because of the rapid development of the IT industry, data center data volume is also in the explosion of the speed of continuous growth, followed by the increase in power consumption. UPS on the one hand toward a more high-power direction, on the other hand to cope with the expansion of the capacity of uninterruptible power supply requirements, product modularity is an unstoppable trend. UPS Uninterruptible Power Supply More personalized user needs, a larger data center scale and higher maintenance costs, so that UPS is no longer a simple uninterruptible power supply equipment, for different industries in the field of a full set of power supply and management solutions will be favored by the market.
Uninterruptible Power supply Working principle
When the mains is normal 380Vac, DC main circuit has DC voltage, supply AC ac inverter, the output of stable 220V or 380Vac ac voltage, at the same time after rectification of the battery charging, when the mains voltage or suddenly off, the battery pack through the isolation diode switch to the DC loop feed power , UPS Uninterruptible Power Supply the power supply from the grid to the battery does not switch time. When the battery energy is about to run out, the uninterruptible power supply emits sound and light alarm and stops the inverter work at the lower limit of the battery discharge, ringing the alarm.
Uninterruptible power supply also has overload protection function, when overload (150% load), jump to bypass state and automatically return when load is normal. UPS Uninterruptible Power Supply When a severe overload (over 200% rated load) occurs, the uninterruptible power supply immediately stops the inverter output and jumps to the bypass state, and the front input air switch may also trip. After the elimination of the failure, just close the switch and reboot to begin to resume work.