Self-Extinguishing Faults in MV Cable Networks - Feasibility Study of Fault Prediction
DOI:
https://doi.org/10.24084/repqj10.210Keywords:
self-extinguishing faults, transient faults, single-phase faults, MV cable networks, fault predictionAbstract
The Dutch grid operator Alliander started an ongoing substation refurbishment in 2006 with SASensor, a measurement, protection and control system, including fault localization of persistent faults. Around 20 percent of the recorded measurements comprise the phenomena of 1-phase selfextinguishing faults. In order to assess the usability of these events to predict faults, the phenomena and their behaviour in time are described in MV networks with isolated neutral and lowimpedance earthing. Furthermore the feasibility of fault localization using the information included in those events is discussed.
