Huabao Golden Samurai UPS power supply 2020.6.15

Emergency power supply (EPS) is an emergency power supply device used for power protection and fire safety in important buildings today. Emergency power supplies are widely used in building electrical fields and special emergency power supply occasions. The principle is: when the AC grid is normal, the AC grid will supply power to important loads through the mutual input device. When the AC grid is powered off, the mutual input device will immediately switch on and off To the inverter power supply, when the grid voltage is restored, the emergency power supply will be restored to the grid power supply, effectively avoiding personal injury and property loss in the event of a disaster.

⑴ When the mains input is normal, the input mains supplies power to the important load through the mutual input device, and the system controller automatically detects the mains and manages the charging of the battery pack through the charger. Generally, the capacity of an EPS charger is only equivalent to 10% of the battery pack capacity (Ah), and only needs to provide the battery pack floating charge or supplementary power function, and does not need to have the ability to directly provide DC power to the inverter. At this time, the city power supplies power to the user's emergency load via the mutual input device in the EPS. At the same time, under the control of the EPS system controller, the inverter stops working and is in an automatic shutdown state. The user load actually uses the grid power supply at this time. At this time, it is usually said that the EPS emergency power supply is in a sleep state, which can effectively achieve the effect of energy saving.

⑵ When the input mains power supply is interrupted or the mains voltage exceeds the limit (±15% or ±20% of the rated input voltage), the system controller commands the mutual input device to switch to the inverter in a short time (0.1~4)S With the support of the DC energy provided by the battery pack, the EPS system supplies power to the user load.

⑶ When the input mains voltage returns to normal operation, the EPS system controller issues an instruction to shut down the inverter, and at the same time, it performs the switching operation from the inverter power supply to the AC bypass power supply through the mutual switching switch. After that, the EPS provides commercial power to the load through the AC bypass power supply path, while continuing to charge its battery pack through the rectifier charger.

Emergency power supply EPS products are one of the important products of Huabao Golden Samurai UPS power supply companies. We not only attach importance to participating in new infrastructure to help the construction of high-speed data networks, we also pay attention to the safety of traditional fields, especially the fire protection field. We Huabao Golden Samurai UPS power supplies The company is determined to create high-quality UPS and EPS power products that are affordable, safe and reliable for the whole people.