Data for: Fault prediction of gas-insulated system with hypersensitive optical monitoring and spectral information

Phase-resolved scatterplots (φ, q), double-spectral scatterplots (Iband1, Iband2) for corona discharges occurring along the needle-plane gaps with different gap distances (d). (a)-(c): (φ, q); (d)-(f): (Iband1, Iband2); Data for Fig. 2.

Integral spectra of the corona discharge in SF6 (gap distance = 50 mm; gas pressure = 0.3 MPa; f = 15). A fiber-optic spectrometer (200-1150 nm), a collecting lens installed outside the quartz glass window of the test chamber, and a 19-core silica fiber were employed to measure the integral spectra of the discharges. Data for Fig. 7.