UPS power supply management solution
1. Requirements for the front UPS power supply system
The UPS provides high quality power supply with high voltage stability, stable frequency, and low waveform distortion for loads. The UPS also provides uninterrupted power supply when it switches to the static bypass. But to do that, the quality of its front-end power supply cannot be ignored. We should consider the following aspects when designing the power supply system for the front stage of the communication room:
(1) The power quality of the front-stage power supply system should not be too poor, and the voltage and frequency should be stable within the normal range.
(2) The front power supply system should not carry other frequently started loads, such as frequently used elevators, frequently opened air conditioners, etc.
(3) The capacity of ac generator set in the front power supply system should be appropriately enlarged.
Two, UPS capacity determination
Selecting an appropriate UPS based on the load capacity and nature can not only ensure the power supply quality of UPS, reduce the failure rate, but also save investment and improve economic benefits. Generally speaking, the UPS capacity is determined mainly to meet the needs of the current load. At the same time, several factors should also be considered:
(1) Impact of load nature on UPS output power.
(2) The UPS capacity should not be too large compared with the load, so that it runs under excessive light load.
(3) The UPS capacity should not be too small, so that it is in a long-term heavy operation state.
(4) In the case of large area of communication room and gradual expansion of load, the mid-long-term development trend should be properly considered when the UPS capacity is configured in the early stage, and the models that can be operated by parallel or multiple machines should be selected in the selection, so that the output capacity can be expanded through the parallel UPS when the mid-long-term load capacity increases. When configu
