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Entries in Data Handlers (10)


PQView Integration with PQube

Electrotek Concepts® has completed a new module for automatic integration of PQView® with PSL Power Standards Labs® PQube® monitors.

The new module is an optional data handler for the Dranetz® Encore Series® Software (ESS) InfoNode® Server. Measurement download is completed using the InfoNode, which runs as multi-threaded background service. More than one PQube can be downloaded at one time, and measurements are downloaded to an IEEE PQDIF Annex C Folder. For more information, visit the PQView Integration with PQube page or contact us at pqview@electrotek.com.


PQView 3.75.5 Released

PQView® 3.75.5 is available for download. This version includes more than 150 changes that result in improvements in nearly all components of the PQView application, including the charting engine, PQView Launcher, PQView Agent, PQView Explorer, the Power Quality Data Manager, and the Power Quality Data Analyzer. Here are some highlights for this release:

PQView Editions: PQView 3 is now delivered in two editions.  If you were using PQView before, you will have access to download PQView Enterprise.  PQView Enterprise has no hard-coded limit on the number of sites that can be stored in a single PQView database, and measurements can be stored in a Microsoft SQL Server database or in a Microsoft Access database.  If you were using PQView Express before, you will have access to download PQView Professional.  PQView Professional is limited to build a PQView database with no more than 50 sites in a single database, and the PQView database can be stored in Microsoft Access format only.  Other than those two points, the two editions of PQView are identical. 

Folder Options: You can now use the options window in PQView Launcher to specify alternative locations for the following special folders: the PQView Temporary Files Folder, the PQView Application Data Folder, and the PQView Personal Folder.  Previous versions of PQView hard-coded these folders to defaults specified by Microsoft Windows itself.  However, some companies limit write-access to these special folders, requiring administrator or power-user permission to run PQView.  This new PQView version allows you to specify the location of these folders. 

Multiple Downloads by PQView Agent: PQView Agent now allows you to specify whether multiple dial-up remote access connections are allowed. This means that PQView Agent could be used to download measurements from more than one Dranetz InfoNode or DualNode by telephone modem at one time.  If you enable this feature, we strongly suggest that you use a different IP address for each remote InfoNode. 

Updated Data Handlers: We improved the data handlers for importing the following data store formats: Cooper CYMDIST Network and Equipment Databases, Dranetz ESS/InfoNode Server, Dranetz DDB Files, Electro Industries Log Databases, New York ISO System Load Data, NOAA Daily Geomagnetic Data, PJM Interconnection System Load Data, Qualitrol Q-Wave Information System (QIS) Databases, SATEC PAS Databases, Schneider Electric ION Enterprise Databases, SoftSwitching Technologies I-Grid Web Site, and the SCADA Database for APC. 

PQ Event Roll: We added new derived charts for displaying form factor and crest factor from waveform samples.  We also added check boxes for enabling the computation and display of point-by-point and cycle-by-cycle calculations for symmetrical components.  We improved integration of the PQ Event Roll and the Fault Viewer. 

Zoom Window on Interactive Charts: The zoom window introduced as a chart option in PQView 3.68.0 can now be toggled on or off by pressing the <Ctrl><Z> key combination when viewing an interactive PQView chart.  This zoom window appears at the bottom of interactive charts in the PQDM and PQDA. 

Fault Location Add-in Module: We updated the Fault Location Add-in Module to provide residual overcurrent (that is, zero-sequence overcurrent) and “subsequent event” detection and notification.  We updated the Fault Viewer in PQDA after working with numerous PQView users in the last few months, making many improvements based around usability.


PQView 3.72.4 Released 

PQView® 3.72.4 is available for download.

This version includes 250 changes that result in improvements in nearly all components of the PQView application, including the charting engine, database schema, PQView Launcher, PQView Agent, PQView Explorer, the Power Quality Data Manager, and the Power Quality Data Analyzer.

Here are some highlights for this release:

Support for Microsoft® SQL Server® 2012: We made changes that allow PQView applications to open more quickly when used with databases hosted by SQL Server 2012.

Data Handler for BTECH® Battery Validation Manager: We added a new data handler for PQView that can import voltage, current, temperature, and impedance measurements from databases managed by BTECH’s Battery Validation Manager software application.

Other Data Handlers: We improved the data handlers for importing the following data store formats:

  • IEEE® Std 1159.3 PQDIF Single File
  • IEEE® Std 1159.3 PQDIF Basic Folder
  • IEEE® Std 1159.3 PQDIF Annex C Folder
  • IEEE® Std 37.111 COMTRADE Folders with No Mapping
  • Dranetz® DDB Files
  • Electro Industries/GE® Communicator Log databases
  • GridSense PowerView CSV Folder
  • Qualitrol®/LEM Instruments Q-Wave Information System (QIS) databases
  • SATEC PAS databases
  • Schneider Electric® ION Enterprise® databases
  • Unipower PQ Secure databases.

Optional Capacitor Switching Analysis Answer Module: We completed changes in PQView to support the first version of an optional add-in module that allows automatic capacitor switching analysis.

Follow-On Fault Analysis: We completed many changes to PQView for single-event and follow-on fault analysis.  The updated module allows correlation of faults with voltage sags, voltage swells, overcurrents, temperature, time of day, and more.

Chart Units: You can now control the normalization of units shown in charts that show temperature and impedance.  For example, this version allows temperature time series to be displayed in either Celsius or Fahrenheit, and impedance time series can be displayed in ohms, milliohms, or kilohms.

Phasor Charts: The phasors displayed in the PQ Event Roll will now be referenced to the first cycle of the voltage on Phase A no matter which phasors are selected for display.


PQView 3.71.3 Released

PQView® 3.71.3 is available for download.

This version includes more than 180 changes that resulted in improvements in nearly all components of the PQView application, including the installation program, database schema, SQL Server scripts, PQView Launcher, the Power Quality Data Manager, the Power Quality Data Analyzer, and PQView Agent.

Here are some highlights for this release:

Installation Program: This version of the installation program restores shortcuts to the Power Quality Data Manager and Power Quality Data Analyzer in the PQView 3.0 program group under the Microsoft Windows Start Menu.  These shortcuts had been removed in PQView 3.65.0 as part of changes to support Microsoft Access 2007 and Access 2010.

Digital Signatures: Beginning with this release, the executable files for PQView Agent, PQView Launcher, and PQView Agent each are digitally signed by Electrotek.

Default Site Properties: It is now possible to specify default values for site properties of new sites added to a PQView database during data source import.

PQView Database Library: Many new functions were added to the PQView Database Library (pqview.dll) and several existing functions were optimized for speed.  This library is used by many third-party applications designed to work with a PQView database.

PQView Agent: We completed many changes to make PQView Agent more reliable and easier to set up as an application for managing more than one PQView database on a single computer.  Also, changes were made in the PQView PQ Data Manager that increase its awareness that an instance of PQView Agent is running.  We need to remind you that PQDM and PQView Advisor can determine if each other is running only if your computer is Windows XP or later, which would be a reason for upgrading your computer from Windows 2000.  Note that Windows 2000 is no longer supported by Microsoft.

Data Handler for Dranetz DDB Files: We made more than ten changes to the data handler, which was the first time it was revised since 2003.  The changes focused on reducing memory needed during import, making the data handler more responsive to user cancellations, and handling incomplete or invalid data blocks better.

Other Data Handlers: We modified the modules used to import from the following data sources: CYMDIST Network and Equipment Databases, Dranetz ESS/InfoNode, ION Enterprise Databases, Electro Industries Communicator Logs, Qualitrol Q-Wave Information System (QIS) Databases, and Unipower PQ Secure Databases.

New Data Handlers: We added new data handlers for importing from General Electric Communicator Logs and from the AMR Database used at Provincial Electric Authority (PEA) in Thailand.  We also added a window for importing waveforms from Microsoft Wave Sound Format (WAV) Files.

EDMI Data Files: We updated the module that allows import from EDMI text files.  It now allows import of measurements from new meters without first adding a serial number for the PQView database as a site property.  As part of the change, you can specify a default value for nominal frequency and nominal voltage for new sites.

Chart Copy to Clipboard: You can now specify the format copied to the Windows Clipboard or to Microsoft Word from interactive charts.  You can choose between five formats: metafiles, enhanced metafiles, enhanced plus metafiles, bitmap files, and JPEG files.  The default is enhanced plus metafiles (EMF+).  These advanced types of metafiles better support display of languages other than English.  EMF+ plus files also can include Greek characters common in power systems analysis such as Δ, Ω, and σ.

PQ Event Roll: Several new charts were added to the PQ Event Roll: Second Derivative, Third Derivative, Rapid Voltage Change Analysis, Mean Values (PPC) and RMS Values (PPC).  You can now export measurements directly from the PQ Event Roll to the Event Roll, which allows you to view digital channels loaded with the event as thin and thick lines.  Additionally, you can now add, edit, or delete a text description of each event using the key combination <Ctrl><N>.  The event description text will appear at the bottom of each event chart if the “Show Event Desc” check box is marked in the PQDA Options window.

Steady-State Trends Window: We added two new derived charts.  One shows the minimum value of the subsets displayed in the chart, and a second displays the maximum value.  These complement the derived charts that were available in previous versions of PQView for showing the average and sum.

Rapid Voltage Changes: We updated the rules for compliance with Rapid Voltage Change limits to reflect current Norwegian NVE 1157 regulations.  Previous versions of PQView evaluated Maximum Voltage Change (ΔUmax) only.  This version of PQView evaluates an additional parameter: Steady State Voltage Change (ΔUss).  The Maximum Voltage Change is the difference between maximum and minimum rms values of a voltage change characteristic.  The Steady State Voltage Change is the difference between two adjacent steady state voltages separated by at least one voltage change characteristic.

Thai Support: We completed many changes in this version of PQView in order to better support computers configured with a Thai locale setting or Thai character set.

Requests from the Fall 2011 Users Group Meetings: We added many of the requests made by users at the 2011 North American and 2011 European PQView Users Group Meetings.


PQView 3.70.0 Released 

PQView 3.70.0 is available for download.  Here are some highlights for this release:

Translated User Interface: To complement the Simplified Chinese user interface that has been available since 2008, we added a new Traditional Chinese user interface.

PQView Database Library: The software library used by third-party software engineers to provide data to custom PQView applications was significantly updated.  The new version of the library can return data log samples up to 35% faster, and waveform samples can be returned up to 80% faster.  Examples of third-party applications developed by PQView users in Asia and Europe are posted in the PQView Users Group Meetings Archive.

Point-in-Wave CharacteristicsIEEE P1159.2 Module: We added a new module for analyzing voltage sags using the methods described in drafts of IEEE P1159.2 and in EPRI Report TR-113044.  The rms characteristics defined by IEEE P1159.2 include sag start, sag stop, sag duration, rms minimum, rms average, rms maximum, and three-phase rms imbalance.  The point-in-wave characteristics defined by the draft standard include point of initiation, point of recovery, duration, initial transition angle, phase jump, final phase shift, final transition angle, post event angle, and maximum harmonic rms value.

Data Handler for Dranetz ESS/InfoNode: We completed optimizations in the data handler used to download measurements from Dranetz InfoNode servers that will reduce download time from remote InfoNodes by about 50%. Another improvement will reduce CPU utilization during stored data download by as much as 95%.

Data Handler for IEEE PQDIF Files: We increased the limit on the number of samples that could be imported from a single series in an IEEE 1159.3 PQDIF file to one million.   We also updated the PQDIF-to-PQView translation table within the PQDIF Data Handler for PQView to allow import of sliding window long-term flicker perception and real power at the fundamental frequency.

Updates to Other Data Handlers: We updated the data handler used when importing measurements from the SoftSwitching Technologies I-Grid web site, from IEEE COMTRADE files, and from EDMI EziView text files.

Linear Regression Scatter ChartLinear Regression Charts: You can now create scatter charts for data logs that feature linear regression lines and statistics.

X-Axis Annotations: We are no longer using vertical lines to indicate when status values change for digital channels imported from a microprocessor relay.  We now use x-axis annotations, which allow many more digital status changes to be shown very close in time.