FIELD: electricity.
SUBSTANCE: supply voltage and phase current are continuously measured in three phases of the electric motor. Using signals of instantaneous current and voltage values, instantaneous values of consumed capacities are continuously calculated. The value of the average capacity is calculated for a period, spectrograms of consumed capacities are built. The value of energy losses is calculated in the motor at each of the spectrum frequencies. The technical condition of the motor is assessed by comparison of produced spectrograms of losses to similar spectrograms produced on a presumably operable motor.
EFFECT: higher accuracy and validity of electric drive elements damage diagnostics as a result of taking into account the load of a diagnosed motor, which is of a random nature.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DIAGNOSTICS OF INDUCTION MOTOR STATOR WINDINGS INSULATION | 2013 |
|
RU2537744C1 |
| METHOD OF DIAGNOSTICS OF TURN-TO-TURN SHORT CIRCUITS OF ASYNCHRONOUS ELECTRIC MOTOR | 2013 |
|
RU2529596C1 |
| METHOD TO DIAGNOSE AND ASSESS RESIDUAL RESOURCE OF AC ELECTRIC DRIVES | 2013 |
|
RU2532762C1 |
| MODE OF DIAGNOSTICS OD ELECTRICAL ENGINES OF ALTERNATING CURRENT AND OF MECHANICAL ARRANGEMENTS INVOLVED WITH THEM | 2005 |
|
RU2300116C2 |
| METHOD TO DIAGNOSE AND ASSESS RESIDUAL RESOURCE OF AC ELECTRIC DRIVES | 2009 |
|
RU2425390C1 |
| METHOD TO DIAGNOSE TECHNICAL CONDITION OF ELECTRIC DRIVE BY EVALUATION OF DYNAMICS OF ITS ELECTRICAL PARAMETERS | 2013 |
|
RU2546993C1 |
| METHOD OF DIAGNOSTICS OF ELECTRICALLY DRIVEN MECHANISMS AND SYSTEMS | 2009 |
|
RU2431152C2 |
| METHOD FOR DETERMINATION OF TECHNICAL CONDITION OF ELECTRIC AND HYDRAULIC DRIVES | 2022 |
|
RU2799489C1 |
| METHOD OF DIAGNOSING TECHNICAL CONDITION OF ELECTRIC MOTORS IN REAL TIME | 2024 |
|
RU2826152C1 |
| DIAGNOSTIC METHOD OF ALTERNATING CURRENT MOTOR AND ASSOCIATED MECHANICAL APPLIANCES | 2007 |
|
RU2339049C1 |
