8Dakin T W, Malinaric P J. A capacitive bridge method for measuring integrated corona-charge transfer and power loss per cycle. Trans AIEE PAS, 1960,79: 648～653.
9Izeki N, Tatsuta F. Three types of partial discharges in electrical insulation. Conf. Record on IEEE Intern. Symp. in El. Ins., Montreal 1984: 327～331.
10Boggs S A, Stone C. Fundamental limitations in the measurement of corona and partia discharge. IEEE Trans. on EI 1982, 17 (2): 143～150.
