Smart Grids

Powering smarter, safer and more connected distribution grids

Mersen allows utilities and distribution network operators to modernize low-voltage grids through advanced protection, monitoring and digitalization solutions.

WHY GRIDS MUST EVOLVE

Distribution grids are under unprecedented pressure
- A growing demand in a renewable energy world
  
  EV charging, heat pumps and industrial electrification are increasing demand and reshaping load patterns. At the same time, distributed sources, solar and storage are creating more variable and bidirectional power flows.
- Aging infrastructure must do more
  
  Many substations and low-voltage distribution assets were installed decades ago. Utilities must maximize the performance of existing infrastructure while preparing for future demand.
- Limited visibility slows decision-making
  
  In many low-voltage networks, operators have little real-time information about the condition of feeders, substations and distribution cabinets. Without accurate data, identifying overloads, faults or capacity constraints becomes more difficult.
- Grid resilience is more important than ever
  
  Utilities need faster fault detection, improved asset monitoring and better maintenance strategies to ensure continuity of service.
Where does grid digitalization happen?

When people think about smart grids, they often focus on control centers and software platforms.

However, digitalization starts in the field.

Secondary substations and cable distribution cabinets are becoming strategic points within the distribution network. These locations are where electrical protection, measurement and operational data can be combined to create actionable insights for grid operators.

By collecting information directly at these critical assets, utilities gain a much clearer picture of how their network is performing.
From protection to grid intelligence

For many utilities, the journey toward smarter grids does not require necessarily replacing existing infrastructure fully.

A practical approach is to build on proven protection technologies while progressively adding monitoring and communication capabilities.
- PROTECT
  
  Reliable NH fuse protection and safe disconnection for low-voltage distribution assets.
  Reliable electrical protection remains the foundation of every distribution network. Safe disconnection and fault protection help maintain network reliability and personnel safety.
- MONITOR
  
  Adding measurement capabilities provides visibility into electrical parameters such as current, voltage, power and temperature. Utilities can better understand loading conditions and network performance.
- DIGITIZE
  
  The final step is connecting field data to monitoring and control systems. Real-time information becomes available to operators, enabling more efficient operation and maintenance of the network.
  
  The result is a protection point that becomes a source of operational intelligence.
Bringing intelligence closer to the grid edge

Mersen smart grid solutions
Mersen helps utilities modernize low-voltage distribution networks by combining electrical protection, measurement and connectivity technologies.

The objective is simple: provide reliable protection while delivering the operational visibility needed for modern grid management.

The Mersen approach combines five key elements:
- Protection devices installed in the distribution network
- Intelligent measurement modules
- Local monitoring of electrical and environmental parameters
- Open communication systems
- Integration with utility monitoring and control platforms
This modular architecture allows utilities to adapt solutions to their specific requirements rather than adopting a rigid, one-size-fits-all platform.
MERSEN SOLUTIONS ACROSS THE DISTRIBUTION GRID

A focused portfolio for grid protection and digitalization
- 01.
  
  SMART PROGRID
- 01.
  
  PROGRID
- 01.
  
  NH FUSES
- 01.
  
  HH / MV FUSES
- 01.
  
  SURGE PROTECTION
- 01.
  
  SMARTSTATION
AMONG THEM

Smart ProGrid: digital-ready protection for modern distribution networks

At the center of Mersen's smart grid offering is Smart ProGrid.

Smart ProGrid combines the core functions required by modern low-voltage distribution networks:

Reliable protection
Smart ProGrid combines proven NH fuse protection with safe switching, disconnection and integrated feeder-level measurement in same footprint as standard device.

Integrated monitoring
The platform can measure key electrical parameters and monitor fuse status directly at feeder level, giving operators greater visibility into network conditions.

Open connectivity
Through Modbus RTU communication, Smart ProGrid can be integrated into existing monitoring and control architectures, helping utilities leverage the systems already in place.

Flexible deployment
Smart ProGrid can be used in both new installations and retrofit projects, supporting utilities as they modernize existing infrastructure.

Utility-driven development
Smart ProGrid was developed around DSO requirements and approved by E.ON.
Designed for real-world utility projects

Every distribution network is different. That is why Mersen solutions are designed to be modular and adaptable.
Whether utilities are building new substations, upgrading existing panels or expanding monitoring capabilities across their network, Smart ProGrid can be configured to meet project-specific requirements.
Monitoring functions can include electrical measurements, temperature monitoring and environmental data collection, depending on operational priorities
Why utilities choose Mersen
Utilities need solutions that are reliable, scalable and compatible with existing infrastructure.

Mersen brings together:
- Decades of expertise in electrical protection
- Smart grid solutions developed around utility requirements
- Open communication architectures
- Flexible deployment options for new and existing installations
- Modular solutions that support gradual grid digitalization
By combining protection, monitoring and connectivity, Mersen helps utilities move from traditional distribution networks toward more intelligent and resilient smart grids.
More info
Smart grids and distribution-grid digitalization
- What does Smart ProGrid measure?
  
  Depending on the configuration, Smart ProGrid can provide current, voltage, active/reactive/apparent power, average and min/max calculation and thresholds, power factor, temperature and fuse-status data.
- Can Smart ProGrid be retrofitted?
  
  Yes. The portfolio includes configurations intended for new installations and compact retrofit approaches for existing panels.
- How does Smart ProGrid communicate?
  
  Smart modules use open Modbus RTU communication for connection to compatible master devices and customer-selected control systems.
- Is SmartStation a fixed package?
  
  No. Monitoring and integration scope can be adapted to each project, as a configurable ecosystem.
READY TO MODERNIZE YOUR DISTRIBUTION GRID?

Let’s build the right path from protection to grid intelligence.

Whether you are designing a new substation, retrofitting an existing panel or adding visibility at outgoing feeder level, Mersen can help define a modular protection and digitalization solution for your project.

CONTACT OUR SMART GRID EXPERTS