Working principle of the inductance ballasts for solar road lights when 220 v50hz are added to the switch in the closed circuit of ac power, the electric current flows through the ballast, lamp filament to the starter filament heating ( At the beginning of the starter is broken, because of the pressure is greater than 190 v alternating current (ac)
working principle of the solar road lights inductance ballast
when 220 v50hz are added to the switch in the closed circuit of ac power, the electric current flows through the ballast, lamp filament [the starter Is a used to preheat the starter fluorescent lamp filament, and improve the voltage on both ends of the tube, with light bulb automatic switch, the basic composition of the starter can be divided into: filled with neon glass bulb, the static and dynamic contact contact plate, moving contact for bimetallic strip. 】 For the filament heating ( At the beginning of the starter is broken, because the pressure is greater than that of more than 190 v ac voltage, the starter has jump of gas inside the bubble inside the arc discharge, the bimetallic strip 【 Bimetallic strip is composed of two or more have appropriate performance of metal or other material of a kind of composite material. 】 Heat deformation, two electrodes together, forming pathways to the filament heating) , when the starter of two electrodes together, since there is no arc discharge, bimetallic strip cooling, poles apart, due to the inductance ballasts are perceptual, when the circuit is suddenly interrupted, duration on both ends of the lamp can produce about 600 v - 1 ms The pulse voltage 1500 v, the exact voltage value depends on the kind of light.
in the case of discharge, the ends of the lamp voltage drop, immediately the lamp current limiting effect on the ballast on the one hand, on the other hand make the supply voltage and the working current of the lamp produces 55. - 65. Secondary start of phase, thereby maintaining the lamp voltage, the lamp can work more stable.