Lumel ND45 series IoT photovoltaic power frequency analyser

The Lumel ND45 is an IoT intelligent electronic device (IED) with data-logging and report-generating capabilities. It offers measurement and recordings of over 500 electric energy quality parameters, including harmonics and inter-harmonics up to the 51st harmonic, energy measurement in four tariffs, recording measurements before and after events (dips and swells), monitoring of up to six additional energy meters with pulse outputs, a configurable display and web server.

The series can be used in order to combat the numerous power quality issues that could arise with the use of solar panels. The IoT device can be programmed to capture power RMS, power and energy, unbalance, voltage dip/sag, voltage swell, voltage sub-cycle events, phase angle deviation, rapid voltage change, total harmonic distortion (THD), total demand distortion (TDD), gapless harmonics, gapless inter-harmonics, frequency and flicker. Once all data has been captured, it is important to analyse it and understand the implications of the data gathered.