Basically, the aim for a grid operator is to provide every grid user with a voltage quality in accordance with EN50160, etc. at the transfer point. This is to ensure that all connected consumers can operate without disruption with a high degree of probability. The quality of the grid voltage provided is typically impaired by the connected customer systems, whose grid feedback must therefore be limited according to their connected load so that all the limit values of EN50160, etc. are complied with overall.

Features

• Metrological verification of compliance with harmonic limits in report form
• Identification of customer systems with impermissibly high grid perturbations
• Recognition of existing interactions between the grid and customer systems (e.g. compensation effects)

Benefits

• Avoidance of investments in unnecessary mitigation measures
• Consideration of faults in the neutral conductor for customer systems remote from the transformer
• More reliable operation of existing and future grids with more efficient use of the grid infrastructure
• Increased security of supply
• No in-depth knowledge required to evaluate the harmonic contribution
• Unknown system parameters can be replaced by standard values

Background: If the entire grid is fully developed with systems, then the compatibility level must be maintained everywhere in the grid with a high probability. This distribution is based on voltages! Each system may therefore only emit a fraction of the compatibility level.

Features

All voltages are monitored for faults such as dips, interruptions or surges in the supply. These faults are registered as events. There is no statistical evaluation as the number of permissible events is not limited.

Benefits

By evaluating a fault recording, the cause of the fault can be determined and, in the best case, a correlation with detected events (such as failure of control systems or operating equipment) can be established. Suitable remedial measures can be derived from this and their effectiveness checked.

Features

All relevant parameters of the supply voltage are monitored, statistically averaged and compared with default values. In this way, either conformity can be verified or attention can be drawn to possible problems.
The currents are also monitored for level, harmonic content and unbalance. However, as there are no limit values, these results are not part of the static evaluation.

Benefits

Verification of compliance with standards (e.g. EN 50160, IEEE519, GB/T, grid-specific) or contracts between energy suppliers and energy consumers.
By observing changes in the results, a deterioration in the grid quality can be identified at an early stage and reasons sought. The effectiveness of the measures introduced can be checked immediately..

Features

• Collection of load flow data for supply and demand
• Power parameters for P, Q, S
• Display via bar graph or trend line
• Additional display of minimum and maximum values
• Output via csv export possible

Benefits

Monitoring allows energy flows to be monitored, peaks to be localized in terms of time and free resources to be determined. This helps to optimize the grid, protect it from overload or underload and ultimately earn money.