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Entries in ANEEL (6)

Friday
Oct152010

PQView 3.68.1 Released

PQView 3.68.1 is available for download

We completed nearly two hundred changes to PQView in upgrading from version 3.66.0 to 3.68.1.  Here are some highlights:

  • PQView Users Group Meetings: During August and September, more than ninety users participated in PQView training sessions in New Zealand, Australia, China, and New York.  This PQView release includes many changes specifically requested at these training sessions.
  • Charting Libraries: We upgraded the charting engine used for interactive charts in PQView.  The new charting engine renders charts about 60% faster, which will be most evident when making a chart with hundreds of thousands or millions of data points.  The chart engine now uses modern Windows charting technologies such as GDI+, antialiased text, and antialiased graphics.  The most noticeable enhancement is an optional zoom window that will appear at the bottom of each chart once you zoom in.  The zoom chart shows the entire chart and highlights the area that is currently zoomed.
  • Updates to Data Handlers: We updated the data handlers or modules used to import from the following data store formats: IEEE COMTRADE Folders, Dranetz ESS/InfoNode, Schneider Electric ION Enterprise, Unipower PQ Secure databases, SoftSwitching I-Grid, OSISoft PI System, PQView databases, and SEL Report Files.
  • Updates to PQView Agent: We modified the way in which PQDM instances shut down when launched from PQView Agent.  As an option, you can have PQDM terminate itself after a data source import initiated by PQView Agent.  This option prevents PQDM instances being left stranded after a Microsoft Access automatic restart.
  • RAS Support: We made major improvements in PQDM when used to download Dranetz InfoNodes using dial-up networking (RAS) connections.
  • Proxy Server Support: We added support for specifying proxy server settings when downloading measurements from InfoNode and I-Grid servers.
  • Fault Viewer: The Fault Viewer in PQDA now features a command button that can export one-line diagrams to applications associated with KML files (e.g., Google Earth)..
  • ANEEL Calculations: The derivations for indices required by the Brazilian National Electrical Energy Agency were modified to include monitor availability as part of the precarious and critical voltage ratio.

 

 

Monday
Aug022010

PQView 3.66.0 Released

PQView 3.66.0 is available for download.

We completed nearly sixty changes to PQView in upgrading from version 3.65.1 to 3.66.0.  Here are some highlights:

  • Microsoft Access 2010: This version of PQView includes support for the just released Microsoft Access 2010.  We also posted the free Microsoft Access 2010 runtime edition for download.
  • Microsoft Access 2007: Some users reported problems using PQView with Access 2007.  We discovered that there was a defect in the original release of Access 2007 that prevented launching PQView.  Microsoft corrected the problem in Microsoft Office 2007 Service Pack 1 (SP1).  In PQView 3.66.0, the PQView Launcher and PQView Agent applications will show a warning message if your computer is using the original release of Access 2007, and will advise you to install SP1 or SP2.
  • Updates to Data Handlers: The following data handlers were updated: PQView 2.x/3.x Databases, IEEE COMTRADE Folders (No Map), Dranetz-BMI PASS 8010 PQNode Database, and GridSense PowerView Text Files.
  • Data Handler for GridSense PowerView Text Files:  The data handler was updated to import waveform samples and rms samples from event files.  Previously, you could import data log measurements only.
  • SEL Report Files: We added a new window for importing from report files created by Schweitzer Engineering Labs (SEL).  The only report supported by the window with this release is the Load Profile (LDP) report.  We plan to expand on this window in the future to import other SEL report files, including EVE, CEV, and SSI.  Until then, there is a separate data handler specifically designed to import EVE files.
  • Derivation of ANEEL Indices: We revised the module in the PQView PQ Data Manager used to derive indices required by the Brazilian Electricity Regulatory Agency (ANEEL).
    Fault Analysis Window: We added three new charts: distribution of maximum voltage, maximum voltage per fault event, and maximum voltage per fault event in a time line display.  The fault data for this report is added by the optional Reactance-to-Fault Add-in Module.
  • Follow-On Fault Analysis Window: We added a new window that analyzes faults that “follow” other faults measured by a site at the same station.
Wednesday
May122010

PQView® 3.65.1 Released

PQView 3.65.1 is available for download.  We completed nearly one hundred changes to PQView in upgrading from version 3.64.0 to 3.65.1.  Here are some highlights: 

  • PQView Launcher: A shortcut to a new application now appears rather than the traditional shortcuts to the Power Quality Data Manager and the Power Quality Data Analyzer.  PQView Launcher allows you to use PQView without having write permission to the “Program Files” folder where PQView is usually installed, which provides better compatibility with Microsoft Windows Vista and Windows 7.  It also allows you to have more than one PQView application open at a time.  For example, you could have three instances of PQDA open at one time, each connected to a different PQView database.  PQView Launcher can be used to “trust” folders when using Microsoft Access 2007 or Access 2010; a database in a trusted folder can be opened without any warning messages from Microsoft Access.
  • PQView Agent was upgraded to work on Microsoft Windows 2003 Server and Windows 2008 Server.
  • Updates to Data Handlers: The following data handlers were updated: IEEE Std 37.111 COMTRADE Folders, IEEE Std 37.111 COMTRADE Folders with No Mapping, Dranetz® PASS/PNDS Databases, Dranetz® ESS/InfoNode, Electro Industries® Communicator Log, and SoftSwitching® I-Grid® Web Site.
  • Data Handler for Electro Industries Communicator Log:  This data handler was redesigned to load data log samples in batches.  This change means that large volumes of data will be imported up to 400% faster than when using PQView 3.64.0.
  • PQ Event Roll: We modified the functionality of the Auto Zoom checkbox.  When checked, the time axis of all charts in the same PQ Event Roll window will be zoomed together.  That is, when one chart with time values for an x-axis is zoomed, all other charts will have their x-axis zoom modified to match the zoom of the chart that was just zoomed.  This feature has been requested by many users in the past.
  • Optional Fault Location Add-in Module: The add-in module was updated to show the distance to fault in miles or kilometers when non-default values of line parameters are specified.  This makes it easier to use the add-in module with transmission line data.  For distribution circuits, the Fault Viewer was updated to allow one-line diagrams to be displayed that show only the line segments with phases that correspond to the fault phases.
  • Derivation of ANEEL Indices: We revised the module in the PQView PQ Data Manager used to derive indices required by the Brazilian Electricity Regulatory Agency (ANEEL).  We also added an ANEEL report in the PQView PQ Data Analyzer.
  • Steady State Trends Window:  You can create a new derived chart that cross tabulates the values in the trend chart by day.  This allows each day being plotted to be overlaid on top of each other day.
Friday
Mar122010

User Group Presentations from Knoxville Meeting in 2006

Presentations from the 2006 PQView Users Group Meeting in Knoxville are now available online.

The meeting focused on PQView 3.27.  The archive includes presentations describing how to import measurements from Schneider Electric ION Enterprise® Databases, the I-Grid® Server, Square D® System Manager Databases, Dranetz-BMI Power Xplorer® files, Dranetz-BMI InfoNode® Servers, and Fluke Scenario databases.   It also includes a presentation on the ONS Approach for Power Quality Management at the Transmission Level in Brazil.  Two cases studies were presented.  One was a study on power system interharmonics from a cycloconverter, and the other was the first use of PQView as part of an automatic distribution fault location system.

Friday
Dec112009

PQView 3.63.0 Posted for Download

PQView® 3.63.0 is available for download.  Here are some of its highlights:

Updates to Data Handlers: The following data handlers were updated: IEEE Std 37.111 COMTRADE Folders, IEEE Std 37.111 COMTRADE Folders with No Mapping, ION Enterprise Database, Landis+Gyr® MAXsys 2510 Text File Folder, Dranetz-BMI DDB File, GridSense PowerView Text Files, SATEC PAS Databases, and the OSISoft PI System.

ANEEL Indices: You can now derive voltage regulation indices that were established by the Brazilian Electricity Regulatory Agency (ANEEL).  The derived indices include the Relative Duration of Precarious Voltage Violation (DRP), the Relative Duration of Critical Voltage Violation (DRC), and Instrument Availability (DISP).

Fault Location Updates: We modified the fault location setup window, fault one-line diagram visualization window, the fault identification algorithm, and the fault location notification system.  Most notably, you can configure a new Overcurrent e-mail notification to be sent for events that have a large current magnitude but do not have all the necessary characteristics to be identified as a fault.

PQView Users Group Meeting: We made changes to PQView requested at the October 2009 PQView Users group Meeting.

Updates in the PQView PQ Data Analyzer: We updated the Event Viewer, Event Roll, PQ Event Roll, RMS Voltage Variations Analysis Panel, and the Steady-State Trends Window.