The UPS power supply and the EPS power supply are more common in the electrical system, which is used to continue to supply power to important loads in the case of sudden power outages of the city. So what is the difference in the application?
UPS power system
UPS is called uninterrupted power supply system, its main function is to continuously supply power to the load in the case of sudden power-down power, is composed of some electronic circuits and batteries, and now UPS is divided into rear preparation, online The working principle of the UPS is also relatively simple, which is the use of our common rectifier inverter circuits, and the battery’s DC electrical conversion of the battery is used as the AC power of our needs and continues to power the system.
Let’s learn about the difference between the rear, online and online interactive UPS, and the rear-pre-collaborative UPS is usually not working. The rectifier inverter circuit is stopped. When it is detected that the main electric power failure is detected, the conversion will have time lag . On the contrary the online UPS is just in the backup, its inverter circuit has been in the working state, the time of the conversion, can seamlessly, so that the load system does not have to be powered off, and the interactive is more intelligent, automatic conversion Operating status.
EPS power system
EPS is called emergency power supply, which is basically the same as the composition of the UPS, but also using the rectifier inverter circuit plus the battery pack, the working principle is the same, when electric power is powered down, through the battery pack DC power into the exchange we need. The power supply continues to power the load device.
The EPS power classification is much more, and it is common to divide it into a lighting system EPS and lighting and power mixing EPS. The load is mostly the load in the lighting system EPS, and the hybrid also includes emergency equipment such as some fan.
The difference between the two
Although both provide continuous power supply for the load, the difference is still different, and the differences between the two should be different.
UPS is used in more than a variety of networks or automation control systems, providing uninterruptible power supplies for the control system, ensuring that the control system provides time to provide storage data at power outages. The EPS is mostly on the fire emergency system, and the power supply is supplied to some emergency equipment when there is a fire, such as some emergency indication mark, emergency fan, or small fire pump, etc., the EPS belt is more loaded.
There are some other differences that are nothing more than the equipment volume of the two, the size of the small UPS is similar to the chassis of the desktop computer, and the EPS covers a larger, after all, the load has been loaded.
In the ground, the use of the two is different, and the engineers should perform the selection of equipment according to the specific needs of the design, do not confuse the concept of the two devices.