METHOD OF REVERSE TRANSFORMATION LOCKING BY MEANS OF DISCONNECTION OF SWITCHING DEVICES IN LOW-VOLTAGE POWER TRANSMISSION LINES COMING FROM TRANSFORMER SUBSTATION AND INPUT SWITCHING DEVICE ON LOW SIDE OF TRANSFORMER SUBSTATION AND SIGNALING AND INFORMING PERSONNEL OF ELECTRIC GRID ORGANIZATION AT UNAUTHORIZED SUPPLY OF VOLTAGE TO OUTGOING FROM TRANSFORMER SUBSTATION POWER LINE OF LOW VOLTAGE FROM CONSUMERS OR TO LOW-VOLTAGE BUSES OF TRANSFORMER SUBSTATION Russian patent published in 2020 - IPC H02J9/06 H02J13/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to methods inverse transformation locking. It is achieved by the fact that at detection of voltage from side of any outgoing power transmission line on the side of consumers of this power transmission line or on low-voltage busbars of transformer substation, in the absence thereof on the side of high voltage of the transformer substation, recording the fact of unauthorized supply of voltage to this power transmission line on the side of consumers or the fact of unauthorized supply of voltage to low-voltage busbars of the transformer substation and in this case signaling of unauthorized supply of voltage to outgoing from the transformer substation power line low voltage from consumers with indication of specific line, in which voltage is supplied.

EFFECT: technical result consists in improvement of safety of electrical networks servicing.

1 cl, 1 dwg