[EPS power supply principle]: When the electrical input exception is automatically converted or quickly converted to the device to provide stable and reliable high-quality electricity, the device needs to use the unit.
Specific division four models:
1. In the conventional inverting EPS power supply, the working principle is normal, and the EPS power supply does not output electric energy or mains input through the EPS power supply directly to the equipment load, when the main electric input is abnormal, EPS power supply Switch to the battery inverter output electrical energy (DC-AC) after auto or by the instruction.
2. In the DC (DC) EPS power supply, the working principle is normal, and the EPS power supply output electricity or the mainstream power supply (AC-DC) is output by direct current, when the market is abnormal. When the EPS power supply is automatically or controlled, it is switched to the battery pack, and the electrical energy (DC-DC) is directly output in DC.
3. In the power type EPS power, its working principle is the battery pack and connects to the DC bus (DC-, DC +) of the inverter. When the main electricity input is normal, the inverter provides electrical energy in an electrical energy, giving the inverter as a When the device starts power, the inverter uses the battery pack to use the battery pack to use the battery pack to use, the starting method is: inverter and variable frequency start.
4. In the lighting / power mixing EPS power supply, the working principle is based on the conventional three-phase reverse illumination EPS power supply, and the output partial bracket re-serial inverter provides power to the power load, so that the EPS power output is equipped. The belt load has a hybrid power supply composed of lighting fixtures.
Summary: The above is the principle of EPS power supply, which is the most common in the fire equipment system, and the application of emergency lighting and power consumption pump and fire elevators provide high-performance products and more favorable prices and quality services.
Changchun Hongbao is an export-oriented enterprise specializing in research, development, production, sales and technical services in power field products.
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