Power Quality Monitoring

GridVisProgramming and configurationUsing the software GridVis all power analysers are completely confi -gurable. Any name can be given to the instruments and connectionmode and PTs and CTs ratio values can be set. Trigger values for themeasurement of events and transients, as well as the measurementvalues which are to be stored and their recording intervals are determined.Limit values for the monitoring function of the digital outputs areprogrammed using the comparator or the pulse value for the digitalinputs or outputs is established. The external temperature sensor can beselected. The time server for time synchronisation is also determined. Ifit is necessary to carry out an update on the measuring instruments, thiscan con veniently be done by the software without the instrumenthaving to be dismantled or returned to Janitza. The most recent updatesfor software and instrument firmware are available free of charge atwww.janitza.de.Illustration: Configuration of power analyserUMG 604Online dataThe software GridVis allows an individual collection, reading out and visualisation of online data. The received data of multiplemeasuring points are collected, saved, processed, visualised and provided for further use. All measured values are availablein the mode of online measurement either as a line graph or bar graph. The line graphs are permanently actualised andthe most obsolete data are cancelled. Two scales can be created for two different units per graph. Any number of measurementdata from each unit, including from several measurement instruments, can be observed in the same graph. In the graphs,the indication of transients and events is displayed. The colour of the graphs can be adjusted as required.Illustration: GridVis indication of various online data150