With the increasing popularity of computer applications and the continuous development of information processing technology, as well as the continuous improvement of the automation level of important equipment. Equipment is increasingly dependent on the reliability of the grid power supply.
In order to ensure the uninterrupted power supply of important monitoring systems, emergency lighting, fire fighting, computers, especially important equipment in the metallurgical industry, a dedicated UPS (uninterruptible power supply) or EPS (emergency power supply) is generally configured.
EPS fire emergency power supply and UPS uninterruptible power supply are both backup power supply equipment. They are both emergency power supply equipment that provides backup power to the load in the event of a mains power failure. Although these two power equipment has similar functions, they are required due to different use environments. The type of emergency power supply used is also different.
The difference between UPS power supply and EPS power supply is mainly reflected in the working mode, application occasions, component structure, load type, selection configuration, component selection requirements, fire-fighting characteristics, safety performance, and fire-fighting acceptance, etc. The following are made for these aspects Specific analysis:
The rated capacity of the UPS power supply is in KVA, and the rated capacity of the EPS power supply is in KW. The power supply objects of UPS are mainly computers and network equipment, and the nature of the load is relatively low. At present, the power factor of UPS output is specified as 0.8. The EPS is mainly used for power emergency protection, and the load is usually inductive or capacitive. Some loads are required to be put into use after power failure. All EPSs must be able to provide a large inrush current, usually requiring continuous power supply for more than 10 minutes under a 120% load.
offline uninterruptible power supply: offline ups price
It can be seen that there is a clear difference between UPS power supply and EPS power supply. In addition, eps emergency power supply will have a few seconds of switching, while UPS uninterruptible power supply has zero switchings. Therefore, for equipment with stricter use places, UPS power supply must be used. Rather than the eps power supply, such as hospital ICU intensive care unit equipment, computer room servers, computers, and other equipment or other places where UPS uninterruptible power supply is needed. Therefore, when choosing an emergency power supply, you should give a reasonable configuration according to the requirements of the required environment to make the equipment more effective.
Because UPS is an online application, an abnormality can be alerted immediately, and there is a voltage reserve to ensure that users can pay close attention to common faults and fault detection, and it is not easy to cause greater damage to safety accidents. EPS is to ensure energy saving, it is to choose city power priority. The EPS power supply is used offline and is the last power supply guarantee. If the EPS cannot be supplied with emergency power from the battery when the mains fails, the EPS will be virtual and the consequences will be unimaginable.
UPS power supply requires high power supply quality, emphasizing the requirements of inverter switching time, output voltage, frequency stability, purity of output waveform, voltage regulator tube, a filtering function, etc., to protect user equipment or business from economic losses. Used in strong and weak electrical rooms, computers, precision instruments, etc.