Study of On-line Monitor for Insulator String Based on Corona Pulse Method

摘要

Using the basic principle of the corona pulse current method, a portable on-line monitor for the insulator string was designed. By collecting the leaking current and corona pulse current signals, the computer reads the data and print out the corona pulse multicycle N-Ψ chart. Finally judging the inferior degree of insulator string uses the fuzzy mathematics theory. Experimentation in laboratory and on the outdoor location proves reliability of the On-line Monitor for Insulator String.