UPS shutdown is divided into two steps:
1, in the UPS panel, press the "gray" shutdown button, shut down the UPS inverter.
2. Disconnect Q5N (output switch) - Q4S (static bypass switch) - QF1 (battery switch) - Q1 (rectifier input switch). ), at which point the UPS is completely shut down.
UPS is for China's power grid environment and network monitoring and network systems, medical systems, such as the reliability of the power supply requirements, to overcome the centralized power supply of medium-sized and large-scale computer network systems caused by the increasingly harsh power supply grid environment, the third generation of industrial frequency pure on-line intelligent UPS with a new digital technology. dc power supply, is to maintain the formation of a stable and constant current in the circuit of the device. Such as dry batteries, storage batteries, DC generators.
The main advantage of UPS, lies in its uninterrupted power supply capability. When the utility AC input is normal, UPS rectifies the AC into DC, and then inverts the DC into a stable and unadulterated AC, which is used by the back-end loads.
Once the utility AC input is abnormal, such as undervoltage or power outage or frequency abnormality, then the UPS will activate the standby energy source - the battery - and the rectifier circuit of the UPS will be shut down, and accordingly, it will invert the DC current from the battery into a stable and unadulterated AC current, which will continue to be used by the back-end loads.