BLOCKING FROM ERRONEOUS ACTIONS OF OPERATIONAL PERSONNEL, WHEN SWITCHING BY SWITCHING DEVICES OF SINGLE-SIDED SERVICE ASSEMBLED CHAMBERS (SAC) OF 6-10 kV Russian patent published in 2022 - IPC H02H11/00 H02H7/22 H02B13/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering; it can be used as a system for blocking from erroneous actions of operational personnel, when switching by switching devices of single-sided service assembled chambers (hereinafter – SAC) of 6-10 kV. The blocking system is installed in SAC chamber containing a cable compartment and a switch compartment, in which switching devices are a cable disconnector, grounding knives of the cable disconnector, and it includes a sensor of the cable disconnector, a sensor of grounding knives of the cable disconnector, inductive approach sensors installed on bars fixed on side stiffness ribs of a frame of SAC chamber, a programmable logical controller (PLC), electromagnetic locks of blocking of switching devices, annunciators of the presence of high voltage at cable inputs and assembled buses of SAC chamber, inductive sensors for registration of a fact of opening of doors of the cable compartment and the switch compartment, a blocking controller, light-sound annunciators of the presence of high voltage in the cable compartment and the switch compartment.

EFFECT: increase in the reliability of operation of electromagnetic blocking at a power facility due to the use of inductive approach sensors for collection of data on change in a position of switching devices and issue of control impacts on electromagnetic locks of blocking of switching devices for permission of switching, as well as on light-sound annunciators of a cable compartment and a switch compartment in the presence of high voltage in compartments of SAC chamber and opening of compartment doors for drawing attention of operational personnel to inadmissibility of their actions.

1 cl, 2 dwg