Measurement technology for Power Utilities
New requirements on energy supply, the energy transition, and changing load profiles are presenting power utilities with new challenges. They can be overcome with a good overview of what is happening in the grid, but this requires the right measurement technology.
DISTRIBUTION NETWORKS IN TRANSITION
For some years now, the classic planning model for unilateral energy supply (from the power station to the consumer) and the technology of electrical energy supply have been changing due to many external circumstances. The requirements for more efficient networks are increasing, as is the feed-in capacity from renewable energies. Charging stations for e-mobility and capacitive loads also add to the strain on networks.
Transformation of the mains entails serious consequences for the energy industry:
- Load flow reversal and regenerative feedback
- Equipment overloads
- Voltage range increases at the feed-in point
- Increasing excess energy production
- Asymmetries, especially in low-voltage networks
- Increased need for storage media
- Network loading through non-linear loads
Rapid fault analysis
Solid basis for network planning
Data basis for automation and control equipment
Monitoring of power quality
e.g. according to EN 50160
RETROFITTING OF DISTRIBUTION SUBSTATIONS
Distribution substations are increasingly being transformed into intelligent nodes. They perform tasks ranging from pure measurement, of energy flows, fault detection and power quality analysis alongside complete remote control and automation. When retrofitting existing distribution substations in particular, appropriate framework conditions must be taken into account when selecting measurement technology.
Cost effectiveness
Components must be very easy to install using "plug-and-play” methods, but at the same time, they must also cost as little as possible during operation.
Limited space
Additional monitoring and telecontrol systems must be adapted to the low expansion reserves of compact distribution substations.
Scalability
Solutions need to offer an economical entry level yet be easily expandable according to current needs and the desired resolution.
