Generally, electric power consumers are faced with the fact that the use of electrical and electronic devices in offices and industry have led to harmonics. Based on survey results found that the electrical system harmonics is the most dominant triplen so need to be addressed for a more comprehensive solution found. Harmonic polluted environment that is known to cause operational disruption to the existing electrical devices in buildings. Until now there is no effective and inexpensive method to overcome the third harmonic and triplen in the system three-phase four-wire distribution. By integrating the principle of inhibiting phase magnetic flux and simultaneously increase the inductive impedance through transposition zigzag transformer secondary coil, triplen harmonic reduction can be achieved. Based on the experimental test data and the simulation results on transformer loading indicated that there is harmonic current distortion reduction by 43% in the primary side of 75% on the load side. The result is that the electricity distribution system into the electromagnetic compatible with the burden of power electronics (ex, electronic ballast fluorescent lamps, and personal computer) that supplied.