For a high-quality UPS power supply system, it should have the following characteristics:
(L) high reliability
the system should be able to provide 365 × 24. Continuously provide high-quality UPS inverter power supply capacity. This means that in the operation of UPS power supply system, neither any instantaneous power supply interruption / power failure accident nor the situation that ordinary mains supply directly supplies power to user loads through AC bypass is allowed.
(2) High anti-interference
UPS power supply system can make Internet equipment obtain high "availability" and create a good operating environment for it.
a large number of operation practices show that power interference is one of the important reasons for the decline of "availability" of Internet equipment. It should be noted here that the power interference not only comes from the ordinary municipal power grid, but also from the poorly designed UPS itself and the user's Internet equipment itself. This is because the servers, disk array machines and switches configured in IDC and MDC machine rooms are equipped with built-in switching power supplies. This rectifier filter type nonlinear load will reflect 3 ~ 23 low-order harmonic interference to the UPS power supply system, which may lead to the adverse effect of reducing voice quality. Practice has proved that excessive and frequent power interference will lead to hidden failures such as the decline of the transmission rate of the Internet and the increase of the packet loss rate of the network server, which will lead to the forced entry of the Internet equipment into the "reduced use" state and, in serious cases, the network paralysis.
it can be seen that the rapid development of high-speed information network technology puts forward stricter requirements for the quality of power supply provided by UPS power supply system.
