Abstract :
For pt.XIII see ibid., vol.8, no.4 (July/August 1992). The finer points of acoustic partial discharge (PD) detection systems and their common applications are treated. The PD source, propagation path of the waves, the acoustic sensor, and system noise are described. The design of acoustic PD instrumentation, the location of discharges, and the detection and evaluation of signals are discussed. Applications to outdoor insulation, medium-voltage air-insulated switchgear, capacitors, transformers, and cables are covered.<>
Keywords :
acoustic applications; cable testing; charge measurement; insulation testing; partial discharges; switchgear testing; transformer testing; PD source; acoustic PD instrumentation; acoustic partial discharge detection; acoustic sensor; cables; capacitors; discharge location; medium-voltage air-insulated switchgear; outdoor insulation; propagation path; signal detection; system noise; transformers; Acoustic applications; Acoustic noise; Acoustic propagation; Acoustic sensors; Acoustic signal detection; Cable insulation; Fault location; Instruments; Partial discharges; Signal design;
