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Entries in InfoNode (15)

Thursday
Oct242013

PQView 3.76.0 Released 

PQView® 3.76.0 is available for download. This version includes more than 160 changes that result in improvements in nearly all components of the PQView application, including the installation program, 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:

Easier Support of PQDIF Import in Windows 7: Many users have begun to use PQView on a Windows 7 computer, or the related Windows Vista, Windows 8, Windows 2008, or Windows 2012.   We made changes in the PQView installation program that will enable more complete import of IEEE PQDIF files when using these later editions of Microsoft Windows without needing administrator permission on your computer during normal usage. 

Parallel Data Source Importing: PQDM has some improvements that make the clean-up of temporary files less problematic when using PQView Agent to import more than one PQView data source at the same time.

Support for SQL Server 2012: You will find a T-SQL script that will ship with PQView 3.76.0 that can be used to convert an existing PQView database for full use in SQL Server 2012. 

COMTRADE File Data Handler: You can now specify more than one COMTRADE analog channel to be the source for a PQView waveform channel.  For example, if you are using PQView with a digital fault recorder that has more than one line current that needs to be summed to comprise the current for Phase A, then you can do so by simply adding the second channel in the COMTRADE-to-PQView channel map configuration file.  We converted some pop-up error messages to data source log messages.  We now allow you to override the line frequency in the configuration file, and allow you to import kW, kvar, and kVA if the COMTRADE file includes these power channels. 

ION Enterprise Data Handler: We added support the optional ION Enterprise Data Handler for PQView to allow import from Schneider Electric StruxureWare databases.

Reactance-to-Fault Add-in Module: In this optional add-in module used for automatic fault location, we added new e-mail notifications for negative-sequence overcurrent with no SCADA correlation, zero-sequence overcurrent events with no SCADA correlation, and events with missing current.

InfoNode Summary Window: We added a new window that can be used to show the status of all DataNodes associated with one or more InfoNode data sources in the PQView database.  The window lets you see the name, description, last connection time, status, health, serial number, model, version, IP address, and nominal voltage  for each DataNode.  Additionally, you can activate or deactivate multiple DataNodes at one time from within PQDM.  You can also use PQDM to request the InfoNode to poll one or more DataNodes on demand, and to view the InfoNode log.

New Chart Options: You can now specify the default chart size (small, medium, or large) and default zoom mode (horizontal, vertical, or horizontal & vertical) for interactive charts.

PQ Event Roll: We added a new derived chart that allows you to overlap voltage waveforms for a multi-cycle recording into a one-cycle window.  Also, you can now make frequency calculations for shorter measurements because we ignore just the first cycle and last cycle of the measurement before looking for zero crossings.  Previous versions of PQView ignored the first three and last three cycles.

Steady-State Trends Window: You can now add text annotations to the trend charts from the event descriptions or system event details. Also, you can use the window to display specific dates only, allowing easy comparison of the data logs for one day to another day.

Steady-State Load Forecast Tool: The load forecast tool, which can use temperature and/or humidity data along with historical load measurements to predict future load growth, was updated to be more flexible with correlation between load and weather data. A temperature sample needs only to be within fifteen minutes of a load sample in order to be compared.

PI Explorer: You can now query trend values from a PI Server without importing them into a PQView database.

Rapid Voltage Change Event Analysis Window: We made many changes to the tool that allows you to create RVC Event Lists and to make an RVC Summary Report to the specification of the Norwegian Water Resources and Energy Directorate.

Tuesday
Jul312012

PQView 3.73.0 Released  

PQView® 3.73.0 is available for download.

This release includes nearly 150 changes to PQView.  The changes result in improvements in all major components of the PQView application. 

Icons for PQView PQ Data Manager and PQView PQ Data Analyzer: The graphics for the program icons and splash screens for PQDM and PQDA were updated.  They now use the same theme used for PQView Agent.

Support for Microsoft® SQL Server® 2012: We made more changes to allow PQView applications to open more quickly when used with databases hosted by SQL Server 2012.  Also, the PQView23.sql script shipped with PQView was modified slightly to be more compatible with RTM edition of SQL Server 2012.

PQView Database Library: We made more than nine changes to the PQView Database Library that is used by an increasing number of third-party software engineers to query measurements from a PQView database.  Some of the changes include the important bug fixes in the subroutines that return statistics.  We also added properties that allow you to filter steady-state samples and harmonic samples based on valid minimum and maximum values.  New methods were also added for determining compliance for rms voltage, line frequency, negative-sequence unbalance, voltage THD, voltage fluctuations, and individual harmonics.

PQView Agent: You can now use PQView Agent to send overdue data source e-mail notifications.  That is, a PQView Agent instance running on one computer can send an e-mail notification if the data source owned by another computer is overdue for import.

Data Handlers for IEEE PQDIF Files: We made many improvements in the IEEE Std. 1159.3 PQDIF data handlers, focusing on improving our support of more types of data that can stored in a PQDIF file, and on better handling of errors encountered in PQDM during import of PQDIF files that do not completely follow the IEEE 1159.3 standard.

Data Handlers for IEEE COMTRADE Files: We improved the data source importing code for IEEE COMTRADE files, making it easier for PQDM to log problems with COMTRADE files noncompliant with IEEE Std C37.111-1991/1999. 

Data Handler for Dranetz InfoNode Servers: You can now specify the maximum number of PQDIF record chunks to download from an InfoNode server during an import session.  The default used to be 1000, but was upgraded to 5000 in PQView 3.70.0  Starting with this release, you can specify larger numbers of PQDIF chunks to download as an option. 

Data Handler for SoftSwitching Technologies I-Grid Web Site: We added options in the Data Source Setup that allow you to deselect import of Transient Events and Power Up Events. These options are not enabled for an existing data source, so be sure to mark them in your existing PQView database if you want to continue to import these characteristics.

Data Handler for ISO System Loads:  We added a new data handler to download and import data from the following Independent System Operators in North America: Electric Reliability Council of Texas (ERCOT), ISO New England (ISO-NE), New York ISO (NYISO), Ontario Independent Electricity System Operator (IESO), and the Pennsylvania-New Jersey-Maryland Interconnection (PJM).

Photo Courtesy of NASAData Handler for NOAA Daily Geomagnetic Data: We added a new data handler for downloading and importing NOAA’s daily geomagnetic data file for A indices and K indices for the current quarter.  These "space weather" indices assess the current level of geomagnetic activity caused by solar storms.

Silver Spring Networks Integration: You can now import voltage, current, and energy data from Silver Spring Networks export files. Silver Spring Networks provides services for collecting and managing data from smart energy meters. 

Other Data Handlers: We improved other data handlers in this new PQView version as well, including the modules used to import from the following sources: BTECH Battery Validation Manager, Electro Industries Communicator Log, and Schweitzer Engineering Laboratories® (SEL) EVE Folders.

Compliance Reporting: The functionality associated with the Compliance Setup Window in PQDM, which began in 2007, is finally completed.  The window allows you to create a configuration file usable by PQDM to create XML and HTML compliance reports.  The compliance setup includes the ability to specify two compliance intervals, which would allow computation of special compliance indices like “precarious voltage” required by ANEEL in Brazil.  Also, the PQView PQ Data Manager can now produce a compliance summary report for rms voltage, negative-sequence unbalance, voltage fluctuations (Pst and Plt), voltage THD, and individual voltage harmonics.

Steady State Trends Window: You can now specify the list of specific harmonics to display using commas, semicolons, and hyphens.  For example, if you set the harmonic text box to the string “1,2,3,10-12;21-25”, then the following harmonics would be trended: 1,2,3,10,11,12,21,22,23, and 24.  You can also specify another code to display inclusive lists of just the odd harmonics or just the even harmonics.  Also, you  can now display numeric site property values from a drop-down list box on the trend, histogram, and profile chart as horizontal or vertical line annotations.

Tuesday
Mar062012

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.

Sunday
Nov132011

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.

Tuesday
Nov012011

2011 Split User Group Meeting Presentations

The 2011 European PQView Users Group Meeting was held on 3-4 October in Split, Croatia.  The meeting was attended by twenty-seven people from Australia, Bosnia and Herzegovina, Croatia, Germany, Norway, Romania, Slovenia, Spain, and the United States.  Presentations and photos from the meeting and are available online.