Power System Telemechanics Electricity UPS System
It possesses on-line double conversion and zero switch function. After being isolated and filtered by regulator, Single-phase 220V or three-phase 380V can provide stable power for load through inverter when the AC is normal. If the failure of AC power grid supply or a power cut occurs, direct current panel, the backup of power system, can invert to supply electricity through non-return diode. If the direct current panel is under voltage or cut off, static switch can shift to bypass stabilized cabinet to supply electricity. When the AC power becomes normal, the static switch automatically shift to AC power grid to supply electricity reversely. If the inverter is overloaded or the fault occurs to it, the static switch shift to bypass stabilized cabinet to supply electricity and indicates a warning signal at the same time.