combines the wide features ofa power quality analyser, for example long time recording, with the considerable advantages of a modern power meter: Measurement of high voltages andcurrent in a frequency range of DCՖ20kHz with an accuracy of 0.1%Exactness evaluation of powerparameters and power factors also by small cos phiՕTabulate and graphical display of themeasured data in real timeAdoption of additional analog anddigital channels to acquire the control signals and non elictrical parameters. ZES ZIMMER Power Quality Analyser PQA450 The objectives of a power qualtityanalyser are manifold. Even manifold as the choice of measuring equipment. The right choice of the equipment is the premise for a successful analysis.Often itմs not enough to measure thevoltage at the point of common coupling only but also to evaluate the interaction between the grid and the connected loads. The required parameters are not only voltage and short ciurcuit level. It is also important to analyse the load currents, power components and power factor. It is well known, that the performanceof a modern electrical appliance should be described with a high precise current measurement in a wide frequency range. This means, that the use of a high precision power meter is essential.The measurement and analysis system > lmg_apps_fu e 10.03 size="-1">

Customer Designers of electrical appliances ՕDepartments of industrial powersuppliesSupply utilities ՕConsulting engineers Operators of wind power plants Features ՕStatistical analysis accordingto EN50160Evaluation of voltage dips ՕRecording ofvoltages, currents and powers Օharmonics and flicker unbalances Օhalf-wave r.m.s. values main signallings ՕRecording of the waveforms fromvoltages and currentsMeasurement without interruption ՕAdjustable trigger conditions forrecordingContinuous display of themeasured valuesՕAdditional measurement of controlsignals and non electrical valuesComfortable handling...