What are the reliability indexes of high frequency online ups?

2026.05.25

Core reliability index of high frequency online UPS

Mean time between failures MTBF: measures the stable running time of the whole machine, and the higher the value, the more reliable it is.


Mean time to repair (MTTR): The shorter the recovery time after failure, the higher the maintenance efficiency.


Input voltage/frequency tolerance range: power grid fluctuation adaptability


Overload capacity: the upper limit of short-term load impact tolerance


Inverter switching time: switching speed from mains failure to battery power supply.


Battery backup time: continuous power supply after power failure.


Harmonic Distortion Rate THDi: the degree of self-pollution to the power grid


Insulation withstand voltage grade: anti-leakage, anti-lightning insulation performance


Working range of temperature and humidity: adaptability to high and low temperature and humid environment.


Redundancy reliability of parallel machine: fault tolerance and expansion stability of multiple parallel machines.


Failure rate: annual failure frequency.


Lightning protection and surge resistance level: ability to resist voltage shock.


Stable power supply, trustworthy. Yunhai Zhicheng high-frequency online UPS has solid and reliable performance, and strict quality control creates excellent quality, which can calmly cope with various power consumption dangers such as power grid fluctuations and sudden power outages. Millisecond speed switching uninterrupted power supply, all-round protection equipment safe operation. The failure rate of long-term operation is low, the power supply output is stable and efficient, and the power defense line is built with solid strength. The enterprise has peace of mind in the whole process of electricity consumption, and the purchase and use feel reliable.



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