Listen to the market suppliers themselves, such as C3KS, actually about 2K more than one day is how the matter?
This is the rated power with the effective output power of the difference, the general UPS effective output power is only 0.7, that is, 1000VA UPS can only take up to 700W load, so 3000VA effective output power is 2100W.
First of all I need to know what you are carrying the load (personal use is generally to the computer), backup time long, how is the economic capacity?
UPS --- uninterruptible power supply system.
1.UPS power than the load power of more than 20% (except for inductive load);
2. Backup time and conversion efficiency. The conversion efficiency is the power conversion efficiency of the UPS to convert DC into AC power.
3. Economic capacity permit, you can buy sine wave output of the UPS, it is the best load (price is the highest);
4.C3KS, the actual probably only 2K more: this is probably a square wave out of the UPS (cheap), the conversion efficiency will not be greater than 80%, and the load in the use of AC as a square wave, there will be square Wave to sine wave input loss, so the input from the UPS to the load of the entire efficiency of the output will not be greater than 60%.
Note whether the UPS is online or backup. What is the quality of the battery? There is no communication function.
Conversion efficiency refers to the ratio of the UPS input rated current to the final output value. The closer the better.
Note factors:
1, performance parameters. UPS uninterruptible power supply as a protective power supply equipment, its performance parameters of great significance, should be the focus of our purchase considerations. The mains voltage input range is wide, it indicates that the utilization of the mains is strong, the output voltage and the frequency range are small, which indicates that the electricity regulation ability is strong and the output is stable. The waveform distortion rate is used to measure the stability of the output voltage waveform, while the voltage stability is the stability of the output voltage when the UPS UPS power is suddenly added from zero load to full load.
2, power efficiency, power factor and conversion time. UPS uninterruptible power efficiency, power factor, conversion time and so are important parameters that characterize UPS performance, determines the protection of the load and the utilization of electricity. The better the performance, the stronger the protection, in general, off-line UPS on the load protection of the worst, slightly interactive online, online type is almost able to solve all the common power problems. Of course, the cost increases with the performance of the increase. Therefore, users in the purchase of Hills UPS power supply, the load should be based on the degree of power requirements and the importance of different load, and select different types of UPS.
The energy of the input power supply can not be converted into 100% of the energy used for the various components in the host, so that a conversion efficiency occurs.
Power conversion efficiency = power supply for the host to provide real-time output power / input power of the immediate power × 100%
1. Different power products, the conversion efficiency is different;
2. The same power supply products, in different working conditions, the conversion efficiency has changed.
