FIELD: electric engineering.
SUBSTANCE: according to method, electrical signal is generated from currents of three phases, for instance in power transmission line, in compliance with a certain rule, and as short circuit takes place on the line with transition process, the signal would contain an aperiodic component in its structure, which is used as detecting criterion indicating occurred short circuit. This detecting criterion may be discovered, for instance by available method of electric signal processing, as a result of which information signal is generated in the form of a certain decaying sinusoidal signal with permanent frequency fadd and which may be used in logics of according devices functioning, providing for proper operation of relay protection and automatics.
EFFECT: method reliability improvement.
4 dwg
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