UPS and EPS?
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This post was last edited by liuquan1100 on 2017-12-29 at 14:47. Does your refinery have both UPS and EPS? What are the remaining capacities of UPS and EPS, and what are their respective uses?
UPS is the abbreviation for Uninterruptible Power Supply, which is what we commonly refer to as an uninterruptible power source. The common UPS power supplies available on the market are mainly of the online and standby types. The EPS emergency power supply system is an abbreviation for Emergency Power Supply; it is an emergency power source designed to meet the special requirements of the fire protection industry. UPS and EPS have similar functions, but they are not interchangeable. Regardless of whether the mains power is normal or not, a UPS is always powered by an inverter, following the process of \"mains input—rectification (charging)—inversion—output\"; it only switches to bypass power in the event of an inverter failure or overload. When there is mains power available, the mains power is output through KM1, and at the same time the charger charges the battery. When the control system detects a power outage or low voltage in the mains supply, KM2 closes, the inverter starts operating, which causes the switch to switch to emergency output mode in order to supply power to the load