Uninterruptible power supply UPS and EPS what is the difference? What is the difference?
2016-11-8 3600 Clicks 
1 EPS is the application development of UPS
In Europe and the United States advanced countries, due to grid connected power supply, power supply, and good quality, coupled with the use of electrical equipment specifications, will not cause pollution on the grid, mutual interference. Therefore, many occasions do not recommend the use of dual inverter UPS online, but to recommend the use of such ECO (ECONOMY CONTROL OPERATION) under the working state of UPS, which is usually by the power supply load in power is not normal, then the battery by the inverter output power supply. In Europe, this has energy-saving work state of UPS called CPS (Center Power Supply), the reason is the widely used online dual inverter working mode of UPS, when power supply is normal, the energy conversion efficiency of the AC - DC - AC is about 90%, and the energy conservation work under the condition of UPS (CPS, EPS) in the normal electricity, the energy conversion efficiency as high as 99%, and grid electricity availability can reach more than 99.99%, only 0.01% of the outage probability, so the use of CPS (EPS) power supply, its energy saving effect is very significant. At the same time, the EPS inverter is in the start state, but not the output power, similar to the sleep state, EPS inverter than the UPS inverter output power can greatly extend the life. In fact, EPS's high-end products is dormant UPS. When the city is normal, EPS in addition to the transmission quality is less than UPS, but in the grid connected to the city today, to meet the requirements of most of the electrical equipment. Therefore, people are concerned about the eternal theme of power saving and high reliability two factors, in most cases, EPS is better than UPS. If the power grid is of good quality, reliable power supply and electric equipment specifications, it is possible to replace the double inverter on line UPS in many occasions in our country instead of using UPS instead of EPS. Of course, in some very critical equipment, still need to double inverter online UPS.
2 the difference between EPS and UPS
(1) the development of EPS in China is the origin of power grid sudden failure, to ensure that the need for power protection and fire control, it can provide immediate emergency escape lighting and fire protection, user life or body from harm, the products by the Ministry of public security fire supervision, fire inspection and accept the installation site. UPS is only used to protect the user equipment or business from economic losses, its product technical requirements by the Ministry of information industry certification. The safety rules of the two are obviously different, so they have different values.
(2) EPS and UPS can provide two-way choice of output power supply, UPS to ensure the quality of power supply, is the choice of inverter priority; and EPS is to ensure the energy saving, is to choose the city electric priority. Of course, there are differences between the two in the design of the rectifier / charger and the inverter.
(3) UPS as a result of the use of online, failure can be timely warning, and a backup protection for the city, the user can promptly grasp the fault and troubleshooting, the accident will not cause a greater loss. While EPS is offline use, is the last line of power supply, so the reliability design is more demanding, not simply the backup UPS, otherwise put off the importance of EPS. If the EPS is in fault, not through a battery of emergency power supply, EPS as decoration, the consequences will be unbearable to contemplate.
(4) UPS power supply is the computer and network equipment, load characteristics (input power factor) is not different, so the standard UPS output power because 0.8. The EPS object is the power supply power protection and fire safety, the nature of inductive and capacitive load and rectifier type nonlinear load combination, the output power factor can be set to 0.8 (GB EPS will provide its value), and some only work load is stopped after power, thus EPS can provide the impulse current great, EPS needs better output dynamic characteristic, anti overload ability. Therefore, the EPS and UPS components of the technical design index assignment is different.
Tres Department of electronic technology
In Europe and the United States advanced countries, due to grid connected power supply, power supply, and good quality, coupled with the use of electrical equipment specifications, will not cause pollution on the grid, mutual interference. Therefore, many occasions do not recommend the use of dual inverter UPS online, but to recommend the use of such ECO (ECONOMY CONTROL OPERATION) under the working state of UPS, which is usually by the power supply load in power is not normal, then the battery by the inverter output power supply. In Europe, this has energy-saving work state of UPS called CPS (Center Power Supply), the reason is the widely used online dual inverter working mode of UPS, when power supply is normal, the energy conversion efficiency of the AC - DC - AC is about 90%, and the energy conservation work under the condition of UPS (CPS, EPS) in the normal electricity, the energy conversion efficiency as high as 99%, and grid electricity availability can reach more than 99.99%, only 0.01% of the outage probability, so the use of CPS (EPS) power supply, its energy saving effect is very significant. At the same time, the EPS inverter is in the start state, but not the output power, similar to the sleep state, EPS inverter than the UPS inverter output power can greatly extend the life. In fact, EPS's high-end products is dormant UPS. When the city is normal, EPS in addition to the transmission quality is less than UPS, but in the grid connected to the city today, to meet the requirements of most of the electrical equipment. Therefore, people are concerned about the eternal theme of power saving and high reliability two factors, in most cases, EPS is better than UPS. If the power grid is of good quality, reliable power supply and electric equipment specifications, it is possible to replace the double inverter on line UPS in many occasions in our country instead of using UPS instead of EPS. Of course, in some very critical equipment, still need to double inverter online UPS.
2 the difference between EPS and UPS
(1) the development of EPS in China is the origin of power grid sudden failure, to ensure that the need for power protection and fire control, it can provide immediate emergency escape lighting and fire protection, user life or body from harm, the products by the Ministry of public security fire supervision, fire inspection and accept the installation site. UPS is only used to protect the user equipment or business from economic losses, its product technical requirements by the Ministry of information industry certification. The safety rules of the two are obviously different, so they have different values.
(2) EPS and UPS can provide two-way choice of output power supply, UPS to ensure the quality of power supply, is the choice of inverter priority; and EPS is to ensure the energy saving, is to choose the city electric priority. Of course, there are differences between the two in the design of the rectifier / charger and the inverter.
(3) UPS as a result of the use of online, failure can be timely warning, and a backup protection for the city, the user can promptly grasp the fault and troubleshooting, the accident will not cause a greater loss. While EPS is offline use, is the last line of power supply, so the reliability design is more demanding, not simply the backup UPS, otherwise put off the importance of EPS. If the EPS is in fault, not through a battery of emergency power supply, EPS as decoration, the consequences will be unbearable to contemplate.
(4) UPS power supply is the computer and network equipment, load characteristics (input power factor) is not different, so the standard UPS output power because 0.8. The EPS object is the power supply power protection and fire safety, the nature of inductive and capacitive load and rectifier type nonlinear load combination, the output power factor can be set to 0.8 (GB EPS will provide its value), and some only work load is stopped after power, thus EPS can provide the impulse current great, EPS needs better output dynamic characteristic, anti overload ability. Therefore, the EPS and UPS components of the technical design index assignment is different.
Tres Department of electronic technology
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