Teachers: I would like to know about the use of emergency power supply, so I would like to ask you talk about the teacher EPS, UPS power supply is what does this mean? What are their respective uses? Thank you!
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EPS, emergency power supply, mainly used for fire, emergency lights and other occasions, low precision, cheaper than the same power UPS, the normal electricity when the bypass work, power failure when the inverter power supply work.
UPS, uninterruptible power supply, mainly used for IDC room, server array, precision control system power supply, high precision, high price, normal power inverter power supply, power failure when the battery power supply.
Their common place is that there are bypass, inverter, battery charging circuit, can be in the mains when the battery to provide emergency power supply. The difference is that the UPS is very precise, rectifier - inverter double conversion work to ensure that the output interruption time is less than 10 milliseconds (usually 0 millisecond intermittent, because the inverter has been working); EPS low precision, power outage time Generally greater than 10 milliseconds, between 10-50ms, if the server, so that more than 20ms intermittent time will restart.