| 摘要 |
<p>The present invention concerns a method and a device (10) for diagnosing the status of an electrical apparatus (14) having a sealed fluid based insulating system. The device (10) comprises at least one input (24) for receiving measurements of a current running through the apparatus and measurements of an actual apparatus pressure as well as a diagnosing unit (26). The diagnosing unit (26) determines a corresponding theoretical apparatus pressure based on the measured current, compares the actual apparatus pressure with the theoretical apparatus pressure and diagnoses the status of the apparatus based on the comparison.</p> |
