Leif Eriksson

An Accurate Fault Locator With Compensation For Apparent Reactance In The Fault Resistance Resulting From Remore-End Infeed

Method and a device for determining a fault on a transmission line

Phase selection for ground fault

Fault current filter

Method and apparatus for detecting flashover between conductors in power transmission lines of different voltage levels suspended in parallel from the same towers

Method and means for fault location in a multi-terminal network

Method and device for measuring and recreating the load current in a power network in connection with the occurrence of faults

Method and device for identifying single ground faults

Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault

A Method and a Device for Determining the Distance from a Measuring Station to a Fault on a Transmission Line