| 摘要 |
<p>Fault detection system, power system, fault detection method, program element and computer-readable medium for subsea pipeline direct electrical heating cables. It is described a fault detection system for subsea pipeline direct electrical heating cables, the fault detection system comprising: a first ammeter for measuring a first phase current, a second ammeter for measuring a second phase current, a third ammeter for measuring a third phase current, a first calculation unit for calculating a negative sequence current from the first phase current, the second phase current, and the third phase current, and a first detection unit for detecting a change in the negative sequence current. Furthermore it is described a corresponding method, program element and computer readable medium.</p> |
