Power quality analyser/disturbance recorder

April 2004 Electrical Power & Protection Surveillance Logistics (Industry)

The new Analyst 3Q makes provision for monitoring all key parameters on 3-phase systems including neutral currents:

* 3-phase power quality analyser and disturbance recorder.

* Unique power quality overview mode.

* Portable, robust and easy to use.

* Ideal for troubleshooting, load profiling and supply monitoring.

* All key parameters for 3-phase systems including neutral currents.

* Power and energy measurements.

* Measurement in accordance with EN50160 power quality standard.

The Analyst 3Q measures all the essential power quality parameters in 50 and 60 Hz systems: rms values of voltage and current, events, harmonics, flicker, voltage, unbalance for current and voltage and line frequency.

The instrument features a unique 3-phase power quality overview mode, displaying all key parameters on one screen for fast and easy diagnosis of power quality problems. The most important power parameters are measured, including active power, apparent power, reactive power, power factor, phase angle and active and reactive energy.

The analysis of the voltage quality is provided through an oscilloscope mode capable of displaying current and voltage waveforms for all three phases simultaneously. The measured parameters are sampled at 10,24 kHz, can be recorded over time and displayed on screen in chart mode and downloaded to a PC for further analysis and report generation. The chart mode facility is ideal for identifying intermittent problems, trends with time and peak demand figures.

Current monitoring is made via four flexible LEM Flex transducers. Voltage connections are made via substantial safety clips.

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