PQ Standards

Since the inception of Electrotek Concepts in 1984, our expert PQ engineers have been engaged in the development of domestic and international standards with standards development organizations (SDOs). Each Electrotek engineer has either had previous experience in the development of power systems- or PQ-related standards before joining Electrotek, has participated in the development of standards by presenting technical results of Electrotek research and engineering work or by engaging in a leadership role to develop a new standard.

Electrotek’s Leadership in PQ Standards Development

Electrotek has held a leading role in the development of domestic and international PQ standards and PQ-related product standards. Electrotek’s membership in the IEEE Power & Energy Society (PES) committees led to development the first IEEE power quality standard, IEEE Standard 1159 – 1995 (2009), IEEE Recommended Practice for Monitoring Electric Power Quality. IEEE 1159 is the standard that defines PQ disturbances based on early PQ analytical studies conducted by Electrotek. The "text book" disturbances were the first waveforms applied to end-use equipment to characterize its PQ immunity performance. 

Electrotek engineers have held chair and vice-chair positions on the following IEEE committees:

  • IEEE Power Quality Standards Coordinating Committee (IEEE SCC-22)
  • IEEE PES Transmission and Distribution Committee
  • IEEE PES Power Quality Subcommittee
  • IEEE PES Distribution Subcommittee

Electrotek engineers have led the following IEEE Working Groups that developed the following PQ standards:

  • IEEE 1159-1995 – Recommended Practice on Monitoring Power Quality
  • IEEE 1159.3-2003 – Recommended Practice for the Transfer of Power Quality Data (PQDIF)
  • IEEE 1409-2012 – Guide for the Application of Power Electronics for Power Quality Improvement on Distribution Systems Rated 1 kV through 38 kV
  • IEEE 1564-2014 – Guide for Voltage Sag Indices

Electrotek represents the United States of America as a Technical Expert on two global standards subcommittees of the International Electrotechnical Commission (IEC). The Central Office of the IEC is located in Geneva, Switzerland. 

  • IEC Technical Committee 77A – Working Group 9: Defines requirements for IEC 61000-4-30 Class A and Class S power
    quality monitors.
  • IEC Technical Committee 85 – Working Group 20: Defines the tests for Class A and Class S power quality monitors.

Electrotek has held leadership positions and presented and taught basic and advanced workshops in dozens of US and international power system and PQ-related conferences.

Today, Electrotek expert PQ engineers still serve on IEEE and IEC standards committees regarding PQ phenomena, analytical methods, data formats and equipment performance. The penetration of Electrotek’s PQ software products and engineering services into US and international utility, manufacturing, government and educational PQ markets has impacted the design and grid operation of utility power  systems, the management and analysis of PQ data, and the testing and performance of domestic and international end-use electrical and electronic products.

Active involvement in standards making efforts on the part of IEEE, IEC, UIE, Cigre, and CIRED has impacted the stability and performance of utility power systems, customer power systems and power quality for utilities and their customers.

Advanced power quality emissions and power quality immunity testing techniques are derived from decades of characterizing utility grids, customer grids and facility electrical systems used in residential, commercial and industrial electrical environments. IEEE, ANSI, NEMA and other industry standards were developed for electrical and electronic equipment as a direct result of advanced PQ testing at Electrotek. Product designs in many electronic equipment areas have also been improved with assistance from Electrotek and/or data captured by Electrotek which was presented to SDOs including international organizations (e.g., IEC, CISPR, etc.) for which Electrotek expert engineers have led and/or participated in.

Impacts resulted from Electrotek’s focus on the development of the first harmonic control standard resulting from the increased use of energy-efficient power electronic-based technologies such as computer power supplies, adjustable-speed drives (ASDs) (also known as variable frequency drives (VFDs) and other electronic loads, along with stricter harmonic measurement procedures and limits. Without Electrotek’s involvement, harmonic problems would increase more than ever before. Responding to the demand for a harmonics standard, Electrotek has been a charter member of the IEEE 519 committee on harmonics control since its inception.

Other impacts result from Electrotek’s abilities to provide a range of technical evaluations, based on standards we led or helped develop, required to address a number of key PQ issues, including: power flow calculations, harmonic analysis, transient and steady state stability analysis, flicker analysis and the control of radiated and conducted emissions below, including and above frequency ranges promulgated by IEEE, IEC and CISPR standards. Electrotek’s involvement in these SDOs has provided key technical information and structure during the development of each power systems and PQ standard promulgated by these organizations.

Electrotek is also well-versed in recent system models defined in NERC Reliability Standards and similar international standards from the point when PQ and reliability of the nation’s grid intersected prior to the development of Internet data centers (IDCs) and e-Business sectors. Electrotek has been instrumental in shaping the standards that IDCs and other Internet-related infrastructures now rely on to operate high-reliability “data warehouses”.

As distributed generation (DG) and renewable energy sources took root, Electrotek utilized in experience in solving power systems and PQ issues regarding these technologies to provide key contributions to the IEEE 5147 standards. Renowned for our work in power systems and PQ engineering, Electrotek’s performance of extensive research for major utility research organizations (e.g., Electric Power Research Institute (EPRI)) and other organizations was the catalyst for upgrading existing standards and developing new ones. Electrotek has extensive experience with interconnection of distributed generation (DG), and has worked with many utilities, research organizations, and standards-making bodies on interconnection issues. Our employees have been instrumental in the development of domestic and international power quality standards and guidelines under IEEE’s 1547 series of standards for interconnection of renewable and distributed generation assets to the main power grid. Customers who ask the question: “Is my wind farm compliance with the expanding IEEE 1547 family of standards regarding islanding, control, power quality, monitoring and the control of generated radiated and conducted emissions to avoid EMI problems with nearby customers and their electronic equipment?” will get the answers they need, because of Electrotek’s key role in the development of the first IEEE 1547 standards and other standards in the IEEE 1547 family.

Electrotek also provides training on power systems and PQ stanards:

  • Power Quality Standards: Domestic & International – An Overview
  • Recent Developments in Power Quality Standards
  • Engaging in the Development of Power Quality Standards

For more information regarding domestic and international standards and how you can get involved in the standards-making process, please contact Electrotek Concepts for the appropriate contact information for the SDO of interest. Electrotek is an active promoter of participation from industry in the development of key standards that affect all areas of power systems and PQ engineering.