ADVANCED DIAGNOSTIC SOLUTIONS FOR MEDIUM VOLTAGE SWITCHING DEVICES Russian patent published in 2023 - IPC H01H3/32 G01R31/327 

FIELD: electrical engineering.

SUBSTANCE: invention is related to switching devices for medium voltage electrical systems. The control unit (7) is configured to implement a diagnostic method (100) for monitoring the operating state of one or more components of said electrical poles (2). The diagnostic method (100) includes the following steps: - based on the selected optimal position curve (C_IP), one or more first curves (C_lv, C_IT ) are obtained (101) characterizing the optimal parameters of the specified switching device, during the opening or closing of the switching device; - based on the determination signals (P_F, v_F, T_F) issued by the feedback control circuit (72) of the specified control unit, by processing the specified signal (θ_D) state of the servomotor, one or more second curves (C_Av, C_AT) characterizing the actual parameters of the specified switching device during the opening or closing of the specified switching device are calculated (102); a comparison procedure (150) between the specified first and second curves (C_lv, C_IT, C_Av, C_AT) is performed (103).

EFFECT: increasing the reliability of monitoring the operating condition of the internal components of the electric poles.

16 cl, 9 dwg