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Entries in PQDIF (20)


PQDiffractor 2.7.3 Released

PQDiffractor® is a free PQDIF viewer and free COMTRADE viewer written by Electrotek Concepts for viewing, browsing, diagnosing, and converting PQDIF files and COMTRADE files, and is a free software download from www.pqview.com.

The COMTRADE file viewer was updated to read the last analog or digital channel of the COMTRADE file. Previous versions would set all values to null for the last channel.

The following menu commands were added to the Window menu when using the PQDIF viewer and the COMTADE Viewer: Tile Horizontally, Tile Vertically, Cascade, and Arrange Icons.

The Close All menu command did not work when viewing COMTRADE files. This was corrected.


Daniel Sabin Elevated to IEEE Fellow

Piscataway, New Jersey, USA, January 14, 2016: Daniel Sabin, a Principal Engineer and Software Architect with Electrotek Concepts in Beverly, Massachusetts, USA, has been named an IEEE Fellow. He is being recognized for leadership in power quality database management and analysis software. Dan designs and develops database schemas and software libraries for PQView®, a software system capable of storing billions of measurements from power quality monitors, digital relays, fault recorders, and other devices in a single relational database.

Dan Sabin developed the first software module to combine measurements from power quality monitors & digital relays, distribution circuit models, and geographic information system (GIS) to provide automatic fault location based on reactance calculations. The software is used by electric utility operation departments in New York City, Detroit, Ottawa, New Haven, and more. It plays a major role in reducing the time to find both overhead and underground faults, in lowering O&M expenses, and in reducing the average interruption time experienced by each customer (CAIDI).

Sabin is currently the Vice Chair of the IEEE Transmission & Distribution Committee. Dan also chairs the IEEE 1159.3 Working Group, which is revising the Power Quality Data Interchange Format (PQDIF), used worldwide to exchange measurements between power quality monitoring systems.

The IEEE Grade of Fellow is conferred by the IEEE Board of Directors upon a person with an outstanding record of accomplishments in any of the IEEE fields of interest. The total number selected in any one year cannot exceed one-tenth of one- percent of the total voting membership. IEEE Fellow is the highest grade of membership and is recognized by the technical community as a prestigious honor and an important career achievement.

The IEEE is the world’s leading professional association for advancing technology for humanity. Through its 400,000 members in 160 countries, the IEEE is a leading authority on a wide variety of areas ranging from aerospace systems, computers and telecommunications to biomedical engineering, electric power, and consumer electronics. If you would like to learn more about IEEE or the IEEE Fellow Program, please visit www.ieee.org.

Electrotek Concepts provides power systems management services and solutions for electric utilities, commercial and industrial consumers, government agencies, and other parties. Electric utility clients include investor-owned, municipals, and cooperatives. Industrial and commercial clients include manufacturing, high-tech mission-critical operations, data centers, and energy intensive manufacturing plants. For more information about Electrotek, please visit www.electrotek.com, or call +1-978-927-8755.


PQDiffractor 2.5.0 Released

PQDiffractor® is a free PQDIF file viewer written by Electrotek Concepts for viewing, browsing, diagnosing, and converting PQDIF files, and is a free software download from www.pqview.com.

With the release of PQDiffractor 2.5, PQDiffractor can be used as a COMTRADE file viewer as well. PQDiffractor can now be used to view IEEE C37.111-1991 and IEEE C37.111-1999 COMTRADE Files.
Some other changes in this release of PQDiffractor include an upgrade in its chart engine to use the same version that will be used with PQView 4. Charts are now rendered by default using Microsoft’s Direct2D graphics API. PQDiffractor 2.2.2 rendered charts using GDI+.

Also, the installation program now installs version of the PQDIF COM Library, which can read and write series instances with up to 16 million samples. PQDiffractor 2.2.2 was limited to one million samples.

PQDiffractor now supports two command line options as well to support automatic conversion of native PQDIF files to XML format.


PQDiffractor 2.3.0 Released

PQDiffractor 2.3.0 has been released for download.
  • PQDiffractor can now read and write series instances with up to 16 million samples.
  • The interactive chart engine was upgraded to use Microsoft’s Direct2D graphics API, which means PQDiffractor will create charts with faster graphics, especially when dealing with many data points.
  • PQDiffractor now supports a new command line option that allows automatic conversion from PQDIF binary format to the PQDIF XML format. See the full release notes for examples.

PQView 3.78.0 Released

PQView 3.78.0 is available for download. Here are some highlights for this release:

PQDIF File Importing: We made changes to allow import of observation records that have up to 16 million samples. In previous versions of PQView, no more than one million samples could be imported from a single observation record.

Automatic COMTRADE File Download using FTP: It is now possible to have PQView’s PQ Data Manager download COMTRADE files automatically from a remote FTP folder before data source import.

Better Multithreading: We revised PQView’s thread locking code to better support data source import of multiple PQDM instances running on the same computer that are run as a service using third-party applications like FireDaemon.

Updated Data Handlers: The following data handlers were updated: IEEE® PQDIF Annex C Folder, IEEE® COMTRADE Folders, SATEC PAS Database, ION Enterprise®/StruxureWare® Database, Schweitzer Engineering Laboratories® (SEL) Event Report Folders, and System Loads

CYMDIST Database Data Handler: We updated this data handler to compute impedance for line geometries modeled using the average geometric arrangement method and to process line sections that have load tap changer models.

I²T Calculations: PQView will now compute accumulated I²t for the phases involved in the fault.