As for the difference between portable UPS power supply and emergency power supply, in fact, many friends have already mentioned this problem. Indeed, many people can't tell the difference between portable UPS power supply and emergency power supply. Is there any overlap between the power supply scope of the two?

I hope you like the difference between portable ups and emergency power.

Portable UPS power supply: mainly composed of power converter energy storage device and switch to ensure the continuity of power supply static AC uninterruptible power supply device. Portable UPS power supply, from the literal meaning can be understood as a kind of portable, relatively small UPS power supply. In fact, portable UPS is a safe, portable, stable and environmentally friendly small energy storage system, which can provide a very portable and sustainable green energy solution.

Emergency power supply: composed of charger, inverter, storage battery, isolation transformer, transfer switch and other devices, it is an emergency power supply that reverses DC energy into AC energy. It is an emergency power supply to meet the special requirements of the fire industry. It is widely used in various construction projects to supply power for evacuation lighting or other electrical equipment in urgent need of fire and emergency. Its working principle is to use single inverter technology for dual power supply in case of emergency.

What's the difference between portable ups and emergency power?

1. In terms of working principle:

Portable UPS power supply is to supply standard voltage to inverter and battery after electric rectification and filtering, when the power is cut off. The electricity in the battery is converted into standard voltage by the inverter to supply the load, so as to ensure the green, stable and continuous power supply for the load.

The utility of portable UPS power supply is isolated from the electrical equipment. The utility will not directly supply power to the electrical equipment. Instead, it will be converted into DC power when it comes to UPS, and then it will be divided into two ways. One way is to charge the battery, and the other way is to switch back to AC power to supply power to the electrical equipment. When the quality of the utility power supply is unstable or power failure occurs, the battery will switch from charging to power supply, and then it will switch back to charging until the utility power returns to normal. As long as the output power of the portable UPS is enough, it can supply power to any equipment using commercial power.

The emergency power supply adopts single inverter technology, which integrates charger, battery, inverter and controller. The battery detection and shunt detection circuits are designed in the system, and the backup operation mode is adopted. When the mains power input is normal, the input mains power supplies the important load through the mutual switching device. At the same time, the system controller automatically detects the mains power and manages the charging of the storage battery through the charger.

2. In terms of application scope:

Application scope of emergency power supply: emergency lighting controller, fire emergency lighting and other equipment, emergency lighting centralized power supply, crowded places with steps, ramps, escalators, fire control room, power distribution room, work power supply of all kinds of buildings, etc. are indispensable equipment in today's important buildings.

The application scope of portable UPS power supply: outdoor office, outdoor photography, outdoor construction, standby power supply, emergency power supply, fire rescue, disaster relief, car start-up, digital charging, mobile power supply; it can also be used in the mountain area, pastoral area, field investigation, outdoor tourism leisure or in the car, ship, can be used as DC, AC power supply.

3. In terms of output power supply:

The power supply object of portable UPS is computer and network equipment. There is little difference in load properties, so the national standard stipulates that the output power factor of UPS is 0.8. In order to ensure uninterrupted output power supply and high quality power supply, online portable UPS chooses inverter first.

The emergency power supply is mainly used as the emergency guarantee of power supply, and the load nature is a combination of inductive, capacitive and rectifying load. Some loads are put into operation after the power failure. Therefore, EPS is required to provide a large impulse current, and it is generally required to operate normally for more than 10 rain under 120% rated load. Therefore, EPS needs to have good dynamic output characteristics and strong anti overload ability. In order to ensure emergency use, EPS power supply should choose municipal power supply first.