SXQ type 6 ~ 35kV harmonic elimination of DC electrical characteristics and traditional LXQ and TXQ harmonic elimination similar, but the structural design of harmonic elimination from the increased heat capacity of departure for a greater improvement; harmonic elimination uses electrical performance ultrafine particles of SiC substrates; through large-tonnage presses pressed into high-density, round pie in the body; in a reducing atmosphere; by thousands of degrees of heat sintering. Exposed surface of the resistor structure is specially treated to withstand sun and rain, can be directly used for indoor and outdoor. Its small size, light weight, fast heat dissipation, high strength, easy to install, very popular with users. Conditions of Use 1, indoor use, installed in the PT primary winding neutral point, although the rain harmonic elimination functions, not directly subjected to long-term sun and rain; 2, altitude less than 2000m; 3, ambient temperature: -40 ℃ ~ +60 ℃; 4, no serious contamination in the gas and the erosion of media sites; 5, AC power system frequency: 50 ~ 60Hz