First, use CHENGE manufactured tuning reactor harmonic source device in the system sends power factor devices For capacitors, transformers and capacitors may result in harmonic resonance. In order to avoid a series of harmonic resonance can be tuned reactors before the capacitors. Frequency tuning the design of the reactor must be set well below the lowest harmonic frequency of the system, so the frequency of the fundamental wave (50Hz) to compensate reactive power, and there is no danger of harmonic resonance. Second, the tuning reactor design point: the smaller the size, weight and loss of touch and temperature insulation test selectable frequency tuning linearity and low noise high stability and robust mechanical structure / high reliability and high quality manufactured CHENGE The tuning system for the reactor core reactors, all product is in a vacuum bet polyester resin injection process reactor was manufactured at 40 ℃ ambient temperature, the drying temperature of 140 ℃. Tuning reactor linearity of llin = 1.2 * (l1 + l2 + ... + ln-1 + ln) = 1.2 * Σl, the inductance value of the degree of attenuation in this case not more than 5% of the rated inductive reactance tuning Inductor error is ± 3% √ reactors with intermediate coil thermostat to avoid overheating reactors damaged rated current is usually specified by the customer. If not specified, the rated current system calculated by the following formula: where l1 = 1.05 * ln (5% considered over-voltage)