I know that UPS is the uninterruptible power supply devices, but EPS seems to be uninterrupted power supply, the difference between the two please master. In addition, other uninterruptible power supply equipment and emergency security system? The most important application in what aspects in the city?
The UPS object is the power supply of computer and network equipment, load characteristics (input power factor) is not very different, so the national standard UPS and EPS power supply output power because the 0.8. object is power protection and fire safety, load properties for inductive and capacitive and rectifier type nonlinear load and the power factor, the output cannot be set to 0.8 (EPS GB will provide its value), and some only work load is stopped after power, thus EPS can provide high impact current, EPS needs better output dynamic characteristic, anti overload ability. Therefore EPS and UPS technology to design the index distribution of each component is different.
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 certification supervision, and accept the installation site fire inspection. UPS is used to protect the user equipment or service from the economic losses, the product certification by the Ministry of information industry. Safety regulations apply to both significantly different, have different values.
EPS and UPS can provide two-way selection output power supply, UPS power supply to ensure the quality, is the choice of the inverter and EPS is preferred; in order to ensure energy saving, electricity is preferred. Of course there are differences in the design index of the rectifier / charger and inverter is on.
UPS is online, failure can timely alarm, and power backup protection, the user can grasp the fault and troubleshooting, will not cause a greater loss of the accident. While EPS is offline use, is the last line of power supply, so the reliability design is more demanding, not simply as the backup UPS, otherwise put off. If the importance of EPS EPS in power failure, not through the emergency power supply battery, EPS as decoration, the consequences will be unbearable to contemplate.
