APF100 Three-Phase Four-Wire Power Supply System And Electric Control Box SolidWorks, 3D Exported

APF100 three-phase four-wire power supply system and electric control box, has been produced and put into the market, for personal reference and learning only, please do not do commercial use, including all parts and apparatus type selection. Active power quality filter, heat sink has been finite element analysis, the product is stable in operation.
Most of our current three-phase four-wire low-voltage power supply system, that is, 380V/220V neutral point directly grounded low-voltage power supply system, the power supply system has three phase lines (fire line) A, B, C, a zero line. The reason why this zero line is called zero line is because it is led by the secondary side of the transformer neutral point, and the secondary side of the neutral point is directly grounded with the earth zero potential connection, so called zero line. In the three-phase four-wire low-voltage power supply system, it is both work zero line, and protection zero line, now known as the PEN line, where PE is the protection zero line, N is the work zero line, together is the PEN line, PEN line that work zero line and do protection zero line, commonly known as “zero ground unity”.