Ups is uninterruptible power supply eps is emergency power supply
Upstairs positive solution. Ups is uninterruptible power supply eps is emergency power supply. Its working principle is basically the same, are using the battery power, power after the battery-powered, the biggest difference is the use and safety level difference.
Ups is used as a working power source, the power of the load equipment to optimize and provide protection after the power, so that the device will not cause data loss due to power failure or other power failure caused by the accident.
EPS is a fire fighting facility that is used as an emergency power source for emergencies, such as safety lights, alarms, and so on. Not for other purposes, less power. But because it is fire facilities, it must be through the national fire safety monitoring, security level is relatively high.
UPS (Uninterruptible Power System), that is, uninterruptible power supply, is a kind of energy storage device, inverter as the main component of the constant voltage constant frequency uninterruptible power supply. Mainly for a single computer, computer network systems or other power electronic equipment to provide uninterrupted power supply.
When the mains input is normal, the UPS will be powered by the mains supply to the load, this time the UPS is an AC mains regulator, and it also charge the battery to the machine; when the electricity interruption (accident power failure) , UPS immediately put the battery power, through the inverter conversion method to continue to supply 220V AC load, so that the load to maintain normal work and protect the load soft, the hardware is not damaged. UPS devices are usually protected against excessive voltage and low voltage.
