Distributed Condition Monitoring of Power Cables

A Brief Update by Henrik Hoff - AP Sensing GMBH

Distributed temperature sensing (DTS) is an established and widely accepted method to monitor the condition of HV and EHV power cables. Thanks to the technology progress, distributed fiber optic sensing has developed further. Enhanced not only in performance and features but also in new techniques that allows measurement of acoustic signals, enabling a spatial distributed hearing into the cable and surroundings.  

This paper offers a brief overview about the status of DTS, Dynamic Current Rating (DCR or RTTR) and the new distributed acoustic sensing technology (DAS) as well as details on the world's first combined DTS/DAS installation.

Olympic-sized demand on city substation requires a reliable monitoring solution

The Olympic Park is the main center of competition for the 2016 Summer Olympics in Rio de Janeiro. Covering over 1 million square meters and including 9 different sports facilities, a new power substation was constructed to handle the enormous power demand in the park. APSensing’s fiber-optic based DTS (Distributed Temperature Sensing) solution was selected to monitor this valuable infrastructure.

Power Circuit Monitoring in the Czech Republic

In 2009 Brugg Cables installed a new 110 KV power circuit within the city limits of Prague. To protect valuable assets and to gain experience applying Distributed Temperature Sensing (DTS) technology the end customer chose to equip the new circuit with a fiber optical sensor cable and permanently monitor the temperature profile