Earth faults are a large problem in the norwegian distribution network. Elvia has about 6000 earth faults each year. Identifying and fixing earth faults takes a lot of resources, both for the grid company and the end-Customer.

The aim of this pilot is to detect earth faults in the 230V IT distribution network based on measurements from smart meters at the end-customers (fuse < 80A). This will be done by use AMS meters for detection of earth faults, given by leakage current. The project is including development- and use of machine-learning methods, for safe detection and notification of earth-fault situations. There will also be developed cost effective tools for rectification of faults for both the end-customer and the grid Company.

Publications:

• Pilot "Detection of earth faults based on data from smart meters report" (in Norwegian)