OMICRON - Your Partner for all
Renewable Energy Sources


The renewable energy transition poses significant challenges for the electricity sector. On the one hand, increasing demand for electrical energy (due to electrification of e.g. mobility and heating) and, on the other hand, replacing existing fossil fuel power plants with renewable energy resources. The most important renewable energy resources are hydropower, wind power and solar power. They can be large centralized systems like offshore wind parks or smaller and distributed ones, like rooftop PV systems.  

Interconnection Point

The increasing share of renewable energies in the electricity mix also has a significant impact on the electric power grids. Grid operators must be able to deal with intermittent generation and changing load flows in order to ensure reliable supply and system security. When it comes to enabling reliable grid operation, requirements for generation plants are typically defined in standards. They include requirements for the behavior of the plants during grid faults or voltage dips and interconnection protection.

Dedicated products

CMC 430

Ultra-portable protection test set and calibrator

CMC 353

Compact and versatile three-phase relay test set

Protection Testing Library

PTL: A comprehensive test template library for a wide range of protection relays


Three-phase voltage transformer

Special Applications

Grounding tests for wind turbine rotors:

Most wind turbine lightning strikes hit the rotor blades. To reliably discharge the lightning, the resistance from the rotor to the earth at the base of the mast must be sufficiently low. Due to the long measurement leads required, the micro-ohm meter must have high output power and current to take accurate measurements. The battery-operated COMPANO 100 can cover this application as well.

Induced onsite partial discharge testing:

Renewable energy poses challenges due to the higher stress that fluctuating energy generation puts on the transformer insulation.

Cast resin transformers are often used for the most common failure of epoxy-resin insulation breakdown.
In locations with narrow space like wind turbines, induced voltage testing and PD measurements can help provide a comprehensive transformer diagnosis.


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