| 摘要 |
FIELD: electricity. ^ SUBSTANCE: diagnostic system includes measuring device for contacts, which has the possibility of determining the contact position. Contact signal generated with the above measuring device indicated whether the contact is open or closed. Time interval is connected to maximum time during which the contact can be in contact position. Controller has the possibility of receiving the contact signal and generating the time interval if closing on the basis of contact signal and comparison of time interval of closing with threshold time interval in order to determine whether the time closing interval exceeds the threshold time interval. Warning message is generated with diagnostic system and indicates the exceedance of threshold time interval. ^ EFFECT: reducing the damage to equipment when performing the operations and excluding contact carbonisation. ^ 7 cl, 6 dwg |
