General individual use UPS, choose backup type can, single PC selection capacity is 500VA, two units PC choose 1000VA. If you need more power, you should consider using more than 1000KVA online UPS, specific manufacturers can query. Consider brand products when choosing
The power factor is divided into the input power factor and the output power factor. Meaning is the cosine of the angle between the voltage waveform and the current waveform. The general input power factor, the bigger the better, the 0.7 is the general design standard (motor) to 0.99 (high frequency), the output power factor of the load and decide, not the bigger the better, the general design standard is (0.7, 0.8).
There are three main types of UPS: backup, online, interactive and online.The backup voltage of electricity in the normal electricity output, power inverter power supply output from the battery is abnormal, the backup UPS features a simple framework and power inverter with high efficiency, low efficiency, a switching time, the price is cheap, generally used in personal computer.The online interactive mode is similar to the backup type. The main difference is that the bi-directional inverter is adopted, that is, the inverter can charge the battery and also can invert the output.On line, the current most widely used UPS framework, when the city power is normal, the UPS will be rectified after the city power into direct current, charging the battery, while the inverter will convert DC to pure AC. When the city is out of order, the DC supplies power from the battery to the inverter and outputs the alternating current. The characteristic of online UPS is that the inverter has high efficiency, high output waveform precision, wide application range of power supply and short switching time (0MS can be done in general).
What type of UPS does a typical computer use?Answer: general computer can use backup type UPS, different manufacturer name way is different, general price is in 500 the following are.
