Profile: Baoding Mingrui Optoelectronics Technology Co.Ltd is engaged in the research and development of solar power and LED lighting. We also offer power system automation equipments. Our complete device of arc & harmonic control and voltage protection is based on innovative theory, with full function & high automation. It could quickly eliminate the electric arc, arc flash transient over-voltage, ferromagnetic resonance associated with ground fault by increasing current instantly to locate the ground line accurately. Our device is widely used in 3-35kv power grid in electricity, metallurgy, chemical enterprises, coal mining, and in petroleum industries. We also offer wall bushings, pillar insulators, and neutral ground resistors.