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IEEE 1159.3-2025

IEEE Recommended Practice for Power Quality Data Interchange Format (PQDIF)
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IEEE 1159.3-2025

IEEE Recommended Practice for Power Quality Data Interchange Format (PQDIF)

PUBLISH DATE 2025
PAGES 105
IEEE 1159.3-2025

Revision Standard - Active.

A file format suitable for exchanging power quality-related measurement and simulation data in a vendor-independent manner is defined in this recommended practice.

The format is designed to represent all power quality phenomena identified in IEEE Std 1159™-2009 and other power-related measurement data and is also extensible to other data types.

The recommended file format utilizes a highly compressed storage scheme to help reduce disk space and transmission times.

Utilizing Globally Unique Identifiers (GUID) to represent each element in the file permits the format to be extensible without the need for a central registration authority.

This recommended practice specifies the Power Quality Data Interchange Format (PQDIF) for the transfer of power quality data between monitoring instruments and computers. This includes raw data as well as processed, simulated, proposed, specified, and calculated data.

The scope of the transfer file format includes the power quality measurements as well as appropriate characterization parameters, such as:

  • sampling rate
  • resolution
  • calibration status
  • instrument identification
  • location
  • other related metadata or characteristics

The recommended practice also provides best practices for representing data and guidelines for transferring power quality data. This standard incorporates open-source material hosted on the IEEE SA Open Source Platform.

IEEE Std 1159.3 provides the power quality industry with the specification for PQDIF, which is an open and accepted data format standard for the transfer of power quality data between instruments and computers.

This transfer standard allows the processing and analysis of power quality measurements using multi-vendor and multi-device data.

Wider acceptance of PQDIF as a power quality data transfer format will significantly add to the value of power quality monitoring and open new opportunities for the resolution, planning, and understanding of power quality activities, including analysis and analytics.

Being able to exchange data between software systems will allow other functions needed in a power quality monitoring campaign, including:

  • validation
  • trending
  • comparison
  • overlay
  • transformation
  • and more
SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 1159.3
Publication Date July 22, 2025
Language en - English
Page Count 105
Revision Level
Supercedes
Committee Transmission and Distribution
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