| 摘要 |
The method involves detecting electric values i.e. current values, which represent an electric variable as a function of time, where the electric variable is relevant to an electric arc. A wear value is computed from wear range values (d1-d3), where the wear value represents wear of a contact element. The wear range values are calculated from the electrical values detected by partial value amounts, so that each wear range value is calculated from the partial value amounts according to wear range calculation specifications, where the wear range calculation specifications differ from each other. An independent claim is also included for an electronic unit i.e. control and/or monitoring system, for an electric switch i.e. switching system for high voltage and medium voltage. |
