A SiPM-Based Trinal Spectral Sensor Developed for Detecting Hazardous Discharges in High-Voltage Switchgear

Figure 13

Variations of the three spectral components with arc length for arc discharge (rod-plate): (a) light intensities in the three spectral bands vs. arc length; (b) normalized spectral proportions and driving power vs. arc length.

(a)

(b)