High-voltage networks are usually operated with voltages in the region of 110 kV to 380 kV, whereby urban areas and large-scale industrial facilities are supplied with 110 kV, and 380 kV is used for long-distance transmission lines. The line simulation system is designed for operation at model voltages between 110 V and 380 V. Various voltage levels and line lengths can be selected via corresponding overlay masks.

Examinations with the training system can be performed off-load, in normal operating mode, in the presence of a short-circuit or earth fault, with or without earth-fault compensation.

The system also permits assembly of complex networks by connecting the line simulation models in parallel or series.

EUL High-voltage transmission lines

• Investigations on three-phase transmission lines.
• Parallel and series connection of transmission lines.
• Transmission line with earth-fault compensation.
• Transmission systems with a synchronous generator.
• Investigations on three phase cables.
• Combined networks of cables and lines.
• Controlling flow of power in meshed networks.
• Load-dependent voltage regulation of a power transmission line.

ELP Protective systems for high-voltage transmission lines

• Overcurrent time protection for lines.
• Directional overcurrent time protection for lines.
• Overvoltage and undervoltage protection.
• Directional power protection.
• Earth-fault voltage protection.
• Protection of parallel-connected lines.
• High-speed distance protection.

EDC1 High-voltage direct current transmission (HVDC)

• Control of intermediate circuit voltage.
• Provision of reactive power but with no effect on the flow of active power (STATCOM).
• Manual and automatic synchronisation with the electric power grid.
• Control of HVDC reactive power with modification to the flow power.
• Individual control of reactive power for both converter stations.
• Observation of losses for various lengths of HVDC lines.