Earth fault trails and measurements in rural 20 kV networks as basis for improving the performance of these networks

Avacon AG is one of the biggest regional utilities in Germany. The area of supply is 31 200 km² and covers parts of Lower Saxony and Saxony-anhalt. The utility supplies more than 1.3 Million customers with electrical energy, gas, heat and water. The following table 1 shows a summary of electrical network information: