MEDIUM VOLTAGE SWITCHING DEVICE AND CONTROL UNIT FOR MEDIUM VOLTAGE SWITCHING DEVICE Russian patent published in 2024 - IPC H01H33/666 H01H9/56 

FIELD: electrical engineering.

SUBSTANCE: invention relates to medium voltage switching device. Medium voltage switching device (1) contains one or more electric poles (2), each of which is made with possibility of electric connection with corresponding electric line. For each electric pole, fixed contact (3) and movable contact (4), wherein movable contact is made with possibility of reversible movement between position of disconnection from fixed contact and position of connection with fixed contact, wherein movable contact is made with possibility of movement from position of disconnection to position of connection during manoeuvre of switching device closing and with possibility of movement from position of connection to position of disconnection during manoeuvre of switching device opening. Driving means (5) configured to actuate movable contacts (4) of one or more electric poles. Switching device is functionally connected to control unit (7) or contains control unit (7) for control of driving facilities (5). Control unit (7) comprises a plurality of input devices (I1, I2, I3, I4), on which the control unit can receive input signals (C1, C2, C3, C4) provided by one or more devices (100) functionally connected to the control unit or included in the control unit. Control unit (7) is configured to perform a plurality of different selectable control procedures (R1, R2, R3, R4) for controlling drive means (5) during the switching device manoeuvre, as a result, drive means operate in accordance with different operating modes, each of which implements different law (L1, L2, L3, L4) of motion for movable contacts (4) of electric poles (2). Control unit is configured to select and execute a selected control procedure (R1, R2, R3, R4) in response to receiving an input signal (C1, C2, C3, C4) at an input device (I1, I2, I3, I4) corresponding to the selected procedure. When control unit (7) performs the selected control procedure (R1, R2, R3, R4) to control driving means (5) during the switching device manoeuvre, drive means (5) actuate movable contacts (4) of electric poles (2) so as to implement law (L1, L2, L3, L4) of motion for movable contacts corresponding to the performed control procedure.

EFFECT: high reliability of operation, as well as high flexibility of using a switching device, that is, the implementation of the load control function or protective functions without interference at the hardware or software level in the switching device itself.

10 cl, 8 dwg