Experiments on reducing peak loads through measurements with active-current and maximum-demand meters demonstrate how the load on an electricity supply network can be reduced and evenly distributed over a 24-hour period.

An analysis of the power supply grid and connected consumers (loads) is necessary for effective use of the measurement techniques involved. Accordingly, each experiment permits a detailed investigation of static, dynamic, symmetric and asymmetric loads.

Malfunctions in electrical systems resulting from short circuits, overload etc. must be prevented or at least restricted by means of appropriate protective measures, and the faulty devices disconnected selectively from the network.

For the protective features to be properly implemented and correctly dimensioned, it is necessary to know their trigger characteristics and times, as well as their operational characteristics.

EUC 1 Complex loads, power consumption measurement and peak load monitoring

EUC 2 Dynamic loads

EUC 3 Manual and automatic compensation of reactive power

EEM 4.6 Protection for electrical machines

EDT 51 Motor management relays