Power quality on-line monitoring device uses high-speed DSP as the core of energy quality test, adopts high precision 16-bit A/D and all the analog channel sampling at the same time. Realizing seamless monitor and analyze to all energy quality parameters. Except for the function of energy quality test, it can also analysis inter-harmonics, swells, sag, short interruptions of voltage, load impedance, power and power factor. The manifestations include real-time reports, test report, statistical reports, trend graph, spectrum, waveform, general reports and log. The measured data can be displayed, printed, saved, exported and uploaded, which can be a integral part of the energy quality monitoring network. This device uses the industrial computer. It is developed independently and owns its independent property rights. So it can meet the usage customs of Chinese and it can make a timely response for the user's command. Main Features: 1. Meet the requirements of the national "A" level standard. Adopt high precision A/D and all the analog channel sampling at the same time. 2. Real-time measurement and analysis of harmonic (2-50 times), frequency, unbalanced degree of three-phase, voltage deviation, flicker, fluctuations and inter-harmonic. 3. Analysis transient power quality monitoring such as voltage swells, voltage sag, short interruptions of voltage. 4. Analysis power and reactance such as active power, reactive power, apparent power, power factor and impedance analysis.

