\ mastering electricity WSR - Load resistors for current transformers Different to the old electro-mechanical devices the new, static kWh-meters are characterized by a significantly lower power consumption. This effect holds the risk of charging the current transformer with a burden below the minimum value. Subject to standard IEC60044-1, the connected burden must obtain a value between 25% and 100% of the rated burden. Thereby, a more favorable instrument security factor is achieved and the class accuracy ensured. The load resistors have been specially developed to bring the charge of a current transformer within 25% and 100% of the value mentioned on the type plate of the power transformer. The resistor has a reactance-free character because of which no extra phase displacement is caused. Technical specification -part of a smart world-