The All-In-One Solution for Power Grid Transparency across All Voltage Levels
The permanently installed PQI-LV, PQI-DA Smart, and PQI-DE analysers provide high-speed fault recording and comprehensive Power Quality monitoring across low-, medium-, and high-voltage networks. Ideal for industrial applications and utility network monitoring, these systems support detailed analysis of modern energy technologies, including photovoltaics, e-mobility infrastructure, and battery energy storage systems. Delivering Class A measurement accuracy in accordance with IEC 61000-4-30 Edition 4, all devices are fully compliant with NRS048-2:2025, South Africa’s Power Quality standard, as well as EN50160 and IEC 61000-2-2/-2-4. This ensures precise, reliable, and reproducible measurement results for effective network assessment and troubleshooting.
The PQI-LV is a compact and cost-effective Class A Power Quality analyzer and fault recorder designed for continuous low-voltage grid monitoring. With simple installation using Rogowski coils and current sensors, it is ideal for monitoring modern energy applications such as PV systems, e-mobility, BESS, heat pumps, and industrial networks. The device supports advanced Power Quality analysis, including supraharmonics up to 20 kHz, while offering secure integration through standardized communication interfaces and web server technology.
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The PQI-DA smart is a voltage quality and power meter as well as a fault recorder in one. It was developed for measurements in public networks, for smart grids and above all in industrial environments with a measuring voltage of up to 690V (LL). The device can be used both as a Power Quality interface and as a measuring device for recording all physically defined measured variables in three-phase networks. Thus PQI-DA smart impresses as a Power Quality all-rounder.
Product Enquiry Technical Data SheetThe PQI-DE is a voltage and Power Quality measurement device, fault recorder and residual current measurement device all in one. The device combines numerous functions. It can be used as a Power Quality interface to fulfil network quality standards or to check the technical connection guideline. It also offers SCADA interfaces and is fitted with a fifth power input. This means the device offers everything Power Quality experts need.
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With the new »I-Sense« technology for our fixed installed Power Quality analysers PQI-DE & PQI-DA smart, it is now possible to measure feeder current in the secondary substation securely, easily and economically for up to 16 feeders. The installation is easy and quick using Rogowski coils and, in addition to current measurement in the feeders, the system also offers the option of highly sophisticated Power Quality monitoring at the secondary substation transformer.
Product Enquiry Technical Data SheetA. Eberle Africa's distributor in Southern Africa - Magnet Electrical Supplies (Pty) Ltd - provides professional services in Power Quality-topics, tailored to your specific requirements. Magnet's team, of experts, in cooperation with our experts, have extensive experience in industry, and along with their problem-centric approach to every application, they are able to efficiently uncover the causes of PQ-problems in industrial plants and in electrical power grids.
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Continuous supervision of voltage quality, harmonics, and transients in transmission and distribution networks.
Long-term monitoring of power supply to protect sensitive equipment and ensure energy efficiency.
Permanent assessment of Power Quality at grid connection points for compliance with utility standards.
Integration into SCADA systems for real-time diagnostics and automated fault recording.
Ensuring uninterrupted, clean power supply for mission-critical operations.
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