IEEE Approves and Revises Standards for Energy Transmission
Contact: Karen McCabe, IEEE-SA
Marketing Director
+1 732-562-3824, k.mccabe@ieee.org
PISCATAWAY, N.J., USA, 5 November 2009 -- The IEEE has approved one new standard and two revised standards related to energy transmission.
The new standard is IEEE C57.12.38(TM), "Standard for Padmounted Type, Self-Cooled, Single Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 Volts and Below, Low Voltage, 240/120 Volts; 167 kVA and Smaller." The standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of single-phase, 60 Hz., mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers. These transformers are rated 167 kVA and smaller, with high voltages of 34 500 GrdY/19 920 volts and below, and with low voltages of 240/120 volts. These transformers are generally used for step-down purposes from an underground primary cable supply. This standard covers the connector, bushing and terminal arrangements for radial or loop feed systems.
IEEE C57.13.5(TM), "Standard of Performance and Test Requirements for Instrument Transformers of a Nominal System Voltage of 115 kV and Above," has been revised to replace the 2003 standard. It applies to single-phase instrument transformers of a nominal system voltage of 115 kV and above with capacitive insulation system for line-to-ground connection and for both indoor and outdoor application. This standard is intended for use as a supplement to IEEE Std C57.13(TM) and as a basis for performance and safety of equipment.
The revision to IEEE C57.15, "Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators," replaces the 1999 version of the standard. It is intended as a basis for the establishment of performance, limited electrical and mechanical interchangeability, and general requirements of equipment described. It also assists in the proper selection of such equipment
About the IEEE Standards Association
The IEEE Standards Association, a globally recognized standards-setting body, develops consensus standards through an open process that engages industry and brings together a broad stakeholder community. IEEE standards set specifications and best practices based on current scientific and technological knowledge. The IEEE-SA has a portfolio of over 900 active standards and more than 400 standards under development. For information on the IEEE-SA, see: http://standards.ieee.org.
About IEEE
IEEE (Institute of Electrical and Electronics Engineers, Inc.), the world's largest technical professional society, is commemorating its 125th anniversary in 2009 by "Celebrating 125 Years of Engineering the Future" around the globe. Through its more than 375,000 members in 160 countries, 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. Dedicated to the advancement of technology, IEEE publishes 30 percent of the world's literature in the electrical and electronics engineering and computer science fields, and has developed over 900 active industry standards. The organization annually sponsors more than 850 conferences worldwide. Additional information about IEEE can be found at http://www.ieee.org.
