1. In terms of working principle:
The portable UPS power supply is to supply the inverter output standard voltage all the way after the electric rectification and filtering, and the battery all the way, when the mains is disconnected. The electricity in the battery is inverted by the inverter into a standard voltage to supply the load, ensuring a green, stable and continuous power supply to the load.
Portable UPS power supply The mains and the electrical equipment are isolated. The mains will not directly supply power to the electrical equipment. Instead, it will be converted into DC power when it reaches the UPS. It will be divided into two ways. One way is to charge the battery and the other way back. AC power is used to supply power to the equipment. When the quality of the mains power supply is unstable or there is a power failure, the battery will be switched from charging to power supply and will not be switched back to charging until the mains returns to normal. As long as the portable UPS has sufficient output power, it can supply power to any equipment that uses city power.
The emergency power supply adopts single inverter technology, which integrates charger, battery, inverter and controller. The battery detection and shunt detection loops are designed inside the system, and the backup operation mode is adopted. 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.
2. In terms of scope of application:
Emergency power supply application scope: emergency lighting controller, fire emergency lighting and other equipment, emergency lighting centralized power supply, crowded places with steps, ramps, escalators, etc., fire control room, power distribution room, power supply for various buildings Such places are indispensable equipment in today's important buildings.
Portable UPS power supply application scope: outdoor office, field photography, outdoor construction, backup power supply, emergency power supply, fire rescue, disaster relief, car start, digital charging, mobile power supply; it can also be used in mountainous areas, pastoral areas, and field surveys without electricity , It can be used as a DC or AC power supply when going out for travel or leisure or in a car or boat.
3. In terms of output power:
The power supply objects of the portable UPS power supply are computers and network equipment. There is little difference in the nature of the load, so the national standard stipulates that the UPS output power factor is 0.8. In order to ensure uninterrupted output power supply and high-quality power supply, on-line portable UPS chooses inverter priority.
The emergency power supply is mainly used as a power supply emergency protection, and the load properties are inductive, capacitive and rectifying loads. Some loads are put into operation after the mains power failure. Therefore, EPS is required to provide a large inrush current. Generally, it is required to operate normally for more than 10rain under 120% rated load. Therefore, EPS needs to have good output dynamic characteristics and strong anti-overload capability. EPS power supply is to ensure emergency use, and the city power is preferred. .