Safety Monitoring And Protection Of Switchgear

Through a series of sensing experiments with multiple light sources, the characteristics of internal fault arc light were determined. Based on this, a fiber optic sensor and an economically practical distributed multi-point internal fault arc detection and protection device were developed using the arc light single criterion rule. This device not only has a simple structure and low cost, but also has fast action time and strong anti-interference ability; Not only can it be used alone, but it can also be integrated with various relay protection devices, thereby greatly improving the technical level and added value of the switchgear without much cost increase