SVG compensation device mainly rely on self commutated circuit through change thyristor conduction angle and amplitude so as to change the output inductive reactive power and capacitive reactive power, and the characteristics of harmonic compensation, due to the characteristics of the nonlinear circuit, resulting in voltage and current distortion is serious, the reactor application put forward very high requirements, our company after a lot of test research and development and process improvement, well solves the several reactor application of SVG user attention: