METHOD AND DEVICE FOR PROHIBITING AUTOMATIC SWITCHING OF RESERVE FOR SHORT CIRCUIT ON REDUNDANT SECTION OF POWER TRANSMISSION LINE

摘要

FIELD: electrical engineering.;SUBSTANCE: invention relates to the field of electrical engineering, in particular to automation of electric networks. According to the method of prohibiting automatic switching of reserve for short circuit on reserved section of power transmission line between ASR switch and sectioning point installed in power transmission line, controlling current and voltage on the reserved section in the SP installation point, controlling the position of the switching device of the SP, recording the occurrence of the short-circuit current in one, two or three phases, recording the disconnection of the switching device of the SP, thereafter, disappearance of all three phase voltages on the reserved section is recorded, and if the combination of said facts is recorded, a signal of inhibiting switching on of the ASR switch is sent using the communication channel.;EFFECT: technical result consists in improvement of functional capabilities and field of application of method of prohibiting automatic switching of reserve for short circuit.;2 cl, 2 dwg