Introduction To EPS Fire Emergency Power Supply
EPS fire emergency power supply principle
In an emergency, DC/AC inverter power supply
The power grid charges the battery inside through the circuit. Since there is an undervoltage electromagnetic mechanism such as an under-voltage relay in the circuit, the relay will only work when the external voltage suddenly drops below the set value or there is no voltage at all. Therefore, the light does not light up when the power grid is normal. It only works when there is a sudden power failure, and it turns to be powered by the battery, and the light is on at this time. When the power grid returns to normal again, it will automatically switch to the charging state and the light will go out.
EPS fire emergency power supply structure
1 The inverter has a large amount of redundancy and requires normal operation under 120% load
2 The incoming and outgoing cabinets are inside the emergency power supply
3 The motor load has variable frequency start
4 can be linked with fire
5 The casing and wires have flame retardant measures, and there are multiple mutual investment functions.
6 There are special measures such as moisture-proof, mildew-proof and rodent-proof
Other features of EPS fire emergency power supply
1 Target load: inductive, resistive load
2 Service objects: motors, pumps, fans, lighting
3 main features: strong adaptability to load
4 Purpose of work: to ensure that emergency power supply is foolproof
5 Place of use: placed in the building shaft or distribution room
EPS fire emergency power supply advantages
Power saving. In the sleep state when the power grid is normal, the power consumption is less than 0.1%, and the efficiency is more than 90% when there is no grid power supply
low noise. When the grid power supply is normal, it is in the sleep state, and there is no noise at rest. When there is no grid power supply, the noise is less than 55dB.
low price. The price of EPS host is lower than that of UPS, and the price advantage is obvious.
long life. The inverter work is only performed when the power grid is out of power. The service life of the host is relatively long, generally more than 20 years.
Especially suitable for inductive loads such as motors and various mixed electrical loads
