This recommended practice specifies the procedure for selection of insulation levels of UHV AC transmission lines and substations. It also specifies reliability criterion under switching overvoltage and lightning overvoltage. It also suggests the calculation methods of insulation coordination design. According to the characteristics of UHV AC systems, overvoltages mitigation measures are recommended. Some examples of insulation coordination are presented.
Working Group Details
- IEEE Power and Energy Society
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- Sponsor Committee
- PE/SWG - Switchgear
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- Working Group
UHV-WG - DELETE - Ultra-High Voltage Working Group - DELETE
Learn More About UHV-WG - DELETE - Ultra-High Voltage Working Group - DELETE
- IEEE Program Manager
- Soo Kim
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- Working Group Chair
- Weijiang Chen
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
IEEE Guide for Voltage Regulation and Reactive Power Compensation at 1000 kV AC and Above
This guide applies to voltage and reactive power control in 1000 kV and above ac systems. It establishes criteria and requirements for electric power utilities in the planning, design, infrastructure, operation, and scientific research of voltage or reactive power in 1000 kV and above ac systems, which should guarantee the system stability and equipment safety.
IEEE Guide for On-Site Acceptance Tests of Electrical Equipment and System Commissioning of 1000 kV AC and Above
On-site acceptance tests of ultra-high-voltage power equipment are subject to this guide. Criteria and requirements for test items, conditions, methods, and results are established. The stated specifications and requirements, both technical and for testing, are universally needed for acceptance tests on-site and commissioning of ultra-high-voltage power equipment, including power transformers, reactors, capacitive voltage transformers, bushing-type current transformers, gas-insulated switchgear, air insulated grounding switches, air insulated disconnecting switches, bushings, metal-oxide surge arresters, suspension insulators, post insulators, and insulating oil, etc. It will be sufficient for most installations.
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
No Inactive-Reserved Standards