1. Bypass
A power supply circuit set up to ensure power supply to the load during UPS equipment failure, temporary overload or shutdown for maintenance. It is generally composed of an isolation transformer, a regulator, a static transfer switch, and a manual maintenance switch.
2. Parallel redundancy kill
By two or more parallel UPS mainframe to share the load, when one or more UPS mainframe failure, the remaining UPS can assume the full load.
3. Double-quantized redundancy
To meet the needs of redundantly configured control systems or dual power loads, set up two independent UPS systems, each consisting of UPS mainframe, bypass and distribution cabinets, etc., can provide two mutual backup power for the load.
4. Static transfer switch
UPS to achieve from the inverse crossover to the bypass or bypass to the inverse crossover conversion of electronic fast transfer switch.
5. Backstop diode
A device that prevents current from flowing from the UPS rectifier to the battery but allows current to flow from the battery to the UPS inverter, used when the UPS shares the battery with other systems.
6. Current peak factor
When the UPS output current is a periodic non-sinusoidal current, the ratio of the peak value of the non-sinusoidal current to its rms value. The size of the peak factor reflects the ability of the UPS to supply power to non-linear loads.
7. Switching time
The time required to switch from inverse crossover power to bypass power or vice versa.
8. Power correction factor
When the load power factor deviates from the rated power factor of the UPS, the UPS can actually carry the load capacity to the rated capacity ratio.
9. Capacity reduction factor (Kd)
When the installation site of the equipment is greater than the sea technology 1000m, the UPS can actually carry the load capacity and rated capacity ratio.
