The GF438II Class A handheld three-phase power quality analyzer fully complies with IEC 61000-4-7 standards, supporting complete harmonic detection from the 1st to 63rd order, alongside interharmonics, high-frequency harmonics and subharmonics analysis. It accurately calculates voltage and current THD with high precision, outputs intuitive harmonic histograms and spectrum curves, and records harmonic power data to identify harmonic loss sources in power distribution systems.
Equipped with 4 voltage and 4 current input channels, the tester adapts to 50Hz/60Hz grid systems and fits 1P2W, 3P3W, 3P4W wiring modes. With 200kHz high-speed waveform sampling, it captures harmonic distortion data during equipment startup, inverter operation and load switching. Built-in 32G TF card enables long-term harmonic data logging, and matched GFUVEPQA upper computer software supports offline secondary analysis, data sorting and standardized power quality report generation.
Certified CAT IV 600V / CAT III 1000V safety rating, the portable GF438II is widely applied in photovoltaic stations, wind farms, industrial power grids, UPS systems and power utility inspection for harmonic pollution troubleshooting and grid compliance testing.
Learn more: https://www.gfuvegroup.com/power-quality-analyzer/three-phase-power-quality-analyzer.html
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