Product description
The main application fields of EPS are: airports, stadiums, terminals, stations, cinemas, plazas, commercial summers, houses, tunnels, entertainment venues, schools, factories, etc. Especially for high-rise building applications. The basic working principle of EPS is similar to the backup UPS or inverter. When the mains is normal, the mains supply is directly supplied to the load through the EPS mains bypass. When the mains is cut off, the EPS is switched to the battery inverter to supply the load. The difference is: EPS strengthens the load output and battery monitoring and detection functions, and the output waveform is required to be sine wave, and the EPS design must meet the requirements of GB17945-2000 «Fire Emergency Lighting» standard.

The UPS inverter output voltage is converted to the required load application voltage, providing electrical isolation between the load and the UPS. The product is usually combined with an inductor and a transformer and combined with the capacitance of the output terminal to function as an LC filter to make the output voltage reach a sinusoidal waveform. The short-circuit impedance voltage Ucc% of the transformer is high.