The energy flow pattern of the current local power grid has undergone a transformation. The large-scale power supply of photovoltaic systems during lunchtime and the centralized power supply of charging piles and heat pumps in the evening lead to frequent voltage fluctuations, flicker, and harmonic problems, and in severe cases, even cause system failures or user complaints.

Core Facts:
The EN 50160 standard specifies the voltage quality that grid operators must ensure at transmission points
Only measurements that comply with the IEC 61000-4-30 standard are legally compliant and internationally comparable, and data generated by other measurement methods have no evidential value
A study by the Swiss Federal Office for Energy (SFOE) shows that voltage band problems caused by photovoltaic power supply in low-voltage power grids are continuing to worsen

What does this mean for power grid operators, energy suppliers, and municipal units? Lack of precise measurement data may lead to decision-making errors. Blindly investing in expensive cables or transformers often addresses the symptoms rather than the root cause. In practice, targeted measures such as phase balance adjustment, reactive power compensation control, or filtering devices are usually needed to fundamentally solve the problem.

Our solution:
LINAX ® PQ5000 (fixed type): Directly monitor power quality in the substation, strictly capture voltage sag, surge, flicker, harmonic distortion, and imbalance data according to standards, and adapt to long-term analysis and compliance reporting requirements.

LINAX ® PQ5000 Mobile: A flexible solution designed specifically for complaint investigation and verification of new photovoltaic parks/charging stations, maintaining equal measurement standards and data comparability.

SINEAX ® AM1000 (Distribution Network Cabinet): Compact equipment continuously monitors current, voltage, and imbalance, achieving direct monitoring in the distribution cabinet where problems are first emerging.

SMARTCOLLECT ® SC ² (software platform): Integrate all measurement data, automatically generate EN 50160 compliance reports, and transform massive data into clear decision-making basis.

Key insight: Many operators make grid investments based on intuition, but power quality is quantifiable and measurable. Only by relying on comparable data can we clarify the essence of the problem and accurately determine which solution is more effective for power grid expansion, parameter optimization, or load management.

👉 Professional advice: If you need to truly understand the operation status of substations or distribution cabinets, please feel free to contact us. We will jointly plan the measurement scheme (fixed/mobile optional) and develop a clear action plan based on international standards.