Cable Condition Monitoring System

An ap sensing distributed acoustic sensing das system is monitoring a 6 km high voltage power cable in germany.

Cable condition monitoring system.

Condition monitoring technique are presented along with a general discussion on the various properties of electric cable insulation that can be monitored to assess the condition of an electric cable and the dielectric integrity of cable insulation systems. With conventional systems a sensor is needed for each point of interest. The system consists of the functionalities of online dielectric loss dl monitoring outer sheath and earthing system condition monitoring and a rapid fault localization system all based on monitoring of cable sheath currents. A cable is simply made of a conductor wrapped in one or more layers of insulation material.

For applications spanning large areas and longer distances these solutions become over complicated bulky unreliable and costly to maintain. While testing conductors connectors and end devices is performed in response to specific operational problems cable condition monitoring is performed to identify degradation in cable insulation material and for cable aging assessment and remaining useful life prediction. This paper presents the research and development of an integrated high voltage hv power cable condition monitoring and fault localization system. This helps optimize transmission and distribution networks and reduces costly and unnecessary operational costs and asset downtime.

A key feature of das is the ability to immediately detect and locate cable faults.