When the power input is normal, UPS electric voltage supplied to the load, the UPS is an AC power regulator, it is also the built-in battery; when the power interruption (outage), UPS will immediately machine battery power through the inverter conversion method continue to supply 220V AC power to the load, the load to maintain normal working load and protection of software and hardware is not damaged. UPS devices usually provide protection against too large voltages and too low voltages.
UPS (Uninterruptible, Power, System), that is, uninterruptible power supply, is a kind of energy storage device, inverter as the main component of constant voltage constant frequency uninterruptible power supply. Used primarily to provide uninterrupted power supply to a single computer, computer network system, or other power electronic equipment.
The UPS is an uninterruptible power supply, and the EPS is an emergency power supply. Its operating principle is basically the same, are the use of battery storage, power failure after the battery power supply, the biggest difference is that the use and safety level of difference.
EPS is a fire fighting facility for emergency power supplies, such as safety channels, lights, alarms, etc.. No other use, less power. But because it is fire fighting facilities, it is necessary to pass the national fire safety monitoring, and the safety level is relatively high.
The UPS is used as a power supply to optimize the power supply of the load equipment and provide protection after power failure, so that the equipment will not cause data loss or other power failures due to power failure.
