The Power Quality Expert Newsroom is the source for news about Sonel Measurement Instruments, Electrex Energy Management Systems, Elspec Power Quality Solutions and Power Quality Expert. Read press releases, get updates on events, watch training videos and download datasheets.
Harmonics Don’t Exist and How We Measure Them
Harmonics Don’t Exist – and How We Measure Them In the world of power quality there is one topic that constantly captures the imagination of electrical engineers: [...]
Fault Ride Through Solution for Wind Farms
The Worlds 1st Ride Through Compliant SVC “kVAR Booster” Solution Asynchronous generators, including doubly-fed rotors, are widely used in wind farms. During voltage drops, any slight speed [...]
Elspec UGM 2025 in Amsterdam
Elspec UGM 2025 in Amsterdam Power Quality Expert attended the 3rd Elspec annual general meeting held in Amsterdam. Elspec produce a range of specialist power quality analysers [...]
Measurements of Short Circuit Loop Impedance in Photovoltaic Farms in IT Networks at Voltages up to 900V AC
Measurements of Short Circuit Loop Impedance in Photovoltaic Farms in IT Networks at Voltages up to 900V AC Loop impedance measurement on photovoltaic farms in IT systems [...]
Comprehensive diagnostic testing of electric vehicle charging stations using the Sonel EVSE-100 multifunction analyser
Comprehensive diagnostic testing of electric vehicle charging stations using the Sonel EVSE-100 multifunction analyser The dynamic growth of electromobility calls for modern diagnostic tools that can ensure [...]
The Iberian Blackout: A Wake-Up Call for UK Grid Resilience and the Role of Advanced Monitoring
The Iberian Blackout: A Wake-Up Call for UK Grid Resilience and the Role of Advanced Monitoring On April 28, 2025, at precisely 12:33 CEST, the Iberian Peninsula [...]
Energy as a strategic resource to support growth
Energy as a strategic resource to support growth. The ISO 50001 Energy Management System certification of Amadori Group The degree of awareness of the “energy problem” for [...]
Measurement of the I-V characteristics of PV panels in accordance with IEC 61829
Measurement of the I-V characteristics of PV panels using the Sonel PVM-1530 Max in accordance with IEC 61829 The measurement of current-voltage (I-V) characteristics of photovoltaic panels [...]
Checking Surge Protective Devices and Best Practices for Surge Protective Device (SPD) Management
Best Practices for Surge Protective Device (SPD) Management Checking surge protective devices Having your electrical equipment damaged during a storm can prove very costly; to make matters [...]
Continuous measurement of power quality with the Sonel PQM-750 power quality sub meter
Continuous measurement of power quality with Class A sub metering. The Sonel PQM-750 analyser is the answer to the growing demands of the power quality market. The [...]
Power quality challenges from linear and non-linear loads
Power quality challenges from linear and non-linear loads The evolution of technology has transformed the way we consume electricity—but it has also introduced new challenges from linear [...]
How to verify earth fault loop impedance (EFLI) with the ECA
Verifying Earth Fault Loop Impedance (EFLI) The ECA (Electrical Contractors Association) presented their latest technical guidance as part of a CPD training presentation for their Midland area [...]