The Fluke 1746 Three-Phase Power Quality Logger captures voltage, current, and power parameters across three phases simultaneously to quantify energy usage, troubleshoot distribution systems, and validate power quality compliance. This compact field instrument logs up to 500 parameters in real-time and stores over 20 separate sessions onboard, making it essential for energy assessments, harmonic analysis, and power distribution diagnostics.
Technical Specifications
The 1746 simultaneously logs voltage and current for all three phases plus neutral current. It measures harmonics and interharmonics for both voltage and current, unbalance, flicker, and rapid voltage changes. The instrument captures voltage dips, swells, and interruptions with RMS event profiles and event waveform data. Additional measurements include mains signaling, inrush current, energy forward/reverse, and peak demand calculation.
This instrument meets IEC 61000-4-30 Class A Edition 3 standard for power quality measurement techniques. Safety ratings reach 600 V CAT IV / 1000 V CAT III, permitting use at service entrances and downstream locations. Physical dimensions are 23 cm × 18 cm × 5.4 cm (9.1 in × 7.1 in × 2.1 in), and the unit achieves IP65 rating when used with an IP65 voltage input adapter.
– Key Features
• Logs up to 500 parameters simultaneously with configurable measurement intervals
• Stores over 20 independent logging sessions within the instrument
• Guided PC-based setup application with graphical interface for data capture configuration
• Intelligent measurement verification feature with amber/green connection status indicator on power button
• Auto-correction function identifies and flags connection errors
• Ethernet (wired and wireless) connectivity for instrument setup and data download
• Two external USB ports: one for PC connection, one for direct USB device download
• Wi-Fi data transfer capability
• Energy Analyze Plus software delivers standardized reporting (EN 50160, IEEE 519, GOST 33073) or exports in PQDIF and NeQual formats
• Optimized measurement accessories include tangle-free flat voltage cables and thin flexible current probes
• Rugged construction rated for harsh installation environments
– Typical Applications
• Three-phase power quality surveys and compliance verification
• Energy consumption monitoring and demand-side management
• Harmonic analysis in industrial and commercial distribution systems
• Voltage event capture and root-cause troubleshooting
• Power factor and unbalance diagnostics
– Compatibility & Integration
Data downloads via Ethernet, USB, or Wi-Fi directly to computers or removable storage devices. The included Energy Analyze Plus software processes logged data and generates standardized compliance reports or exports datasets for third-party analysis software.
