Method e.g. for gainig information about progression of error current, involves inserting sum current transformer at power supply and power dissipation which run primary and secondary

摘要

The method involves inserting a sum current transformer at the power supply and power dissipation which run primary and secondary in the event of a fault current zero with different voltage created. Several variety of measurements are recorded and statistical analysis of the measurements are performed to determine statistical size. The value of a statistical size on the form of the fault current is closed. An independent claim is included for a fault circuit interrupter.