FIELD: engines.
SUBSTANCE: invention relates to online detection of deterioration of electric motor insulation. With the help of a converter cascade voltage is applied to the engine winding (windings). Induced current (i) and/or its temporary leakage (di/dt) is recorded as a measuring signal using sensor (6, 7, 8). Then it is resampled with a frequency higher then the one that is typical for its oscillation. Obtained oversampled signal is analyzed using such parametric values of transient process, as redundant pulse (Δh), and/or intrinsic frequency (1/Δt), and/or damping constant, to detect possible deterioration of insulation condition.
EFFECT: technical result is reliability of online detection of deterioration of insulation at minimal hardware costs.
15 cl, 9 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REAL-TIME MONITORING OF OPERATING CONDITIONS OF CAPACITIVE SENSOR | 2015 |
|
RU2686522C2 |
| SYSTEM FOR MONITORING AND DIAGNOSING STATE OF TURBINE GENERATOR | 2023 |
|
RU2814856C1 |
| SYSTEM FOR MONITORING AND DIAGNOSING STATE OF TURBINE GENERATOR | 2023 |
|
RU2814857C1 |
| DEVICE FOR REGISTERING SERVICE LIFE OF MACHINES | 0 |
|
SU1569856A1 |
| SYSTEM AND METHOD FOR ELIMINATING GROUND SHORT CIRCUIT MODE WHICH CAN APPEAR IN ELECTRIC MOTOR SYSTEM | 2006 |
|
RU2395146C2 |
| SYSTEM FOR MONITORING, DIAGNOSTICS AND MANAGEMENT OF THE TECHNICAL CONDITION OF POWER TRANSFORMERS | 2022 |
|
RU2791597C1 |
| COMPENSATING ACCELEROMETER | 2007 |
|
RU2341805C1 |
| DEVICE FOR TESTING INSULATION OF DC POWER SUPPLY AND LOCATING INSULATION FAULTS | 2004 |
|
RU2284537C2 |
| METHOD FOR MONITORING THE TECHNICAL CONDITION OF THE DIRECT CHARGE SENSOR OF THE IN-REACTOR CONTROL SYSTEM OF A NUCLEAR REACTOR | 2022 |
|
RU2783505C1 |
| METHOD OF MEASURING INSULANCE IN MULTI-PATH DC CIRCUITS | 2008 |
|
RU2363960C1 |
