The performance of transformers in the presence of oscillatory transients is addressed in this guide. Oscillatory transients are typically produced by the interaction of the switching device, transformer, load, and system. This guide describes operating conditions that may produce oscillatory switching transient voltages damaging to the transformer insulation system. It discusses the electrical characteristics of the source, switching device, transformer, load and the nature of their transient interaction. It discusses several mitigation methods. Two generic examples are included. This guide focuses on mechanical switching devices and does not address semiconductor switching devices.
- Sponsor Committee
- PE/TR - Transformers
Learn More - Joint Sponsors
-
PE/SWG
- Status
- Inactive-Reserved Standard
- PAR Approval
- 2008-12-10
- Board Approval
- 2010-12-08
- History
-
- ANSI Approved:
- 2011-08-23
- Published:
- 2011-04-27
- Inactivated Date:
- 2021-03-25
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/TR - Transformers
Learn More - Working Group
-
PerfCharac-WGC57.142 - Performance Characteristics - Mitigation of Switching Transients CB/Xfrmr Interaction Working Group
- IEEE Program Manager
- Malia Zaman
Contact - Working Group Chair
- James Mcbride
PC57.142
Guide to Describe the Occurrence and Mitigation of Switching Transients Induced by Transformers, Switching Device, and System Interaction
This Guide addresses the application of transformers in the presence of oscillatory switching transients. These oscillatory transients are typically produced by the interaction of the switching device, transformer, load, and system. This Guide defines operating conditions that may produce switching voltages damaging to the transformer insulation system. It discusses the electrical characteristics of the system source, switching device, transformer, and load and the nature of their transient interaction. It outlines several mitigation methods. Two examples are included. This Guide recognizes that many devices and/or system operations can produce oscillatory transient waveforms. The focus of this Guide is on the interaction between a transformer, the system, and a switching device as a result of several reports of transformer internal winding failures. This Guide focuses only on mechanical switching devices and does not cover semiconductor switching devices.
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards