Fluke 1777 Power Quality Analyzer (three-phase, Class A)

Three-phase power quality analyzer for supply network assessments, load testing and troubleshooting equipment failures. It records voltages, currents, power, harmonics, voltage dips and swells, and fast transients. Recording starts automatically when connected, without manually configuring a session. Fluke Energy Analyze Plus software generates reports in accordance with EN 50160, IEEE 519 and G5/5.

Within the 1770 family, the 1777 offers the fastest transient sampling and the largest recording memory. Powering the instrument directly from the measured circuit eliminates the need to find a power outlet in a switchboard.

In traction substations and auxiliary-service switchboards, the analyzer documents AC-side power quality, loading of non-traction auxiliary transformers and switching surges that can damage power supplies and electronics in trackside cabinets. Measurements in DC circuits include DC voltage and current.

Specifications (Fluke 1777, from the 1770 Series datasheet):

• Measurement category (CAT, input overvoltage withstand) - CAT IV 600 V / CAT III 1000 V
• Voltage inputs - 4 (three phases and N relative to PE), max. 1000 V rms / 1000 V DC
• Power quality measurement compliance - IEC 61000-4-30 Class A, IEC 62586 PQI-A-PI
• Power quality bandwidth and sampling - DC to 30 kHz, 80 kS/s, 24-bit resolution
• Voltage transients - ±8 kV range, 1 MS/s or 20 MS/s sampling, DC to 1 MHz bandwidth
• Harmonics - up to the 100th harmonic and supraharmonics from 2–30 kHz
• Current inputs - 4, iFlex probes rated 1500 A / 3000 A / 6000 A or clamps
• Memory - 32 GB microSD card
• Power from measured circuit - 100–600 V (85–660 V), BP1770 battery for 75 minutes of operation
• Operating temperature - –10 °C to +50 °C; IP50 enclosure rating
• Weight - 2.1 kg