Non Intrusive Monitoring of Electrical Cables in Ship Power Systems

The integrity of power cables is vital for the reliability and safety of an electrical system. The change in operating conditions of the electrical cable often leads to unanticipated faults or premature ageing and any such defects has to be monitored so that corrective measures can be taken within the time. This paper discusses about a non-intrusive power line quality monitoring technique that can be used on ships to detect the faults based on the Power Line Communication (PLC) technology. The relationship between the channel frequency response and the power line quality features are studied and any changes in the positions and values of peaks or valleys and distance between peaks or valleys are monitored