IEC TR 61850-90-17: Power Quality, PQDIF and WebPQ®
IEC TR 61850-90-17 describes the integration of power quality data into IEC 61850 environments. Learn about the role of PQDIF, COMTRADE and WebPQ® in data transfer, analysis and continuous PQ data processing.
Digital Substation
A digital secondary substation combines measurement, fault location and secure data analysis to improve transparency across medium- and low-voltage distribution grids.
»PQSys« Webinar: PQ-Monitoring & Feeder Current Measurement in Low-Voltage Grids 4
Webinar recording from 2026-05-13: »PQSys - PQ-Monitoring & Feeder Current Measurement in Low-Voltage Grids - part 4«.
Electrical Resistance
Electrical resistance is one of the fundamental quantities in electrical engineering. This article explains the definition, unit, symbol, Ohm's law, resistance measurement and the role of resistance in circuits and power networks.
Measuring Equipotential Bonding
Measuring equipotential bonding is essential for verifying low-resistance, continuous connections between conductive parts. This article explains equipotential bonding, relevant standards, typical measurement methods and its importance for safety, EMC, power quality and reliable grid operation.
Insulation Resistance and Insulation Measurement
Insulation measurement helps assess the safety and condition of electrical installations. This article explains insulation resistance measurement, relevant limits, test voltages and practical interpretation in real grid operation.
»PQMobil« Webinar: Power Quality Analysis in Public & Industrial Power Grids with A. Eberle PQ-Boxes - Part 4
Webinar recording from 2026-04-15: »PQMobil - Power Quality Analysis in Public & Industrial Power Grids – Part 4«.
Clamp Meter - Contactless Current Measurement in Grids and Electrical Installations
A clamp meter enables fast, non-invasive current measurement in AC and DC systems and supports troubleshooting, commissioning, and temporary load analysis in grid and industrial applications.
Power Plant Controller: Measurement Values at the Grid Connection Point
Power Plant Controller operation at the grid connection point depends on low-latency, accurate, and dynamically reliable measurement values. This article explains the technical requirements, the role of PQI-DA smart and PQI-DE, and why actual-value feedback must be clearly separated from formal verification under VDE-AR-N 4110/4120.
»PQ-Box ONE« Webinar: The New Single-Phase Power Quality Analyser for Measurements
Webinar recording from 2026-02-25: »PQ-Box ONE« - The New Single-Phase Power Quality Analyser for Measurements
Measuring Harmonics: Detecting Disturbances in Buildings
Harmonic distortion and supraharmonics can cause flicker, nuisance tripping and device malfunctions in modern buildings. This article explains how to measure harmonics at the socket outlet and interpret spectra (e.g., around 17 kHz) to identify the root cause.
»Cyber Security« Webinar: A Challenge for European Energy Companies
Webinar recording from 2025-11-26: »Cyber Security« - A Challenge for European Energy Companies
»PQMobil« Training Video 8: Setting up remote access for the PQ-Box
This video shows how to configure a PQ-Box remotely via Wi-Fi, LAN, network, and the Internet using a VPN tunnel, view live data, and transfer measurement data. Enjoy the video.
Total Harmonic Distortion (THD) in Low Voltage Networks
This study examines harmonic distortion in modern low-voltage grids, showing real measurement data, key standards (EN 50160, IEC 61000-3-2/-4-30) and practical ways to reduce THD in applications such as EV charging, PV systems, battery storage and hybrid working environments.
Power Quality Monitoring in Buildings - A Key Factor in Modern Building Design
Discover how Power Quality Monitoring in Buildings improves reliability, efficiency and grid stability. Learn more in our technical article.
