Summary
Results from a world wide utility survey of failures and service experience with instrument transformers rated for 60 kV and above are presented. The surveyed service experience comprises 1 290 335 single phase instrument transformer years. Statistical information about 690 major and 2 489 minor failures - such as origin, cause and failed subcomponent - are provided. In addition, failure frequencies as a function of voltage level, technology, age, design and maintenance strategy are presented.
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 512 |
| Publication year | 2012 |
| Publisher | CIGRE |
| Study committees | Transmission & distribution equipment (A3) |
| Working groups | WG A3.06 |
| File size | 3 MB |
| Pages number | 193 |
| Price for non member | 300 € |
| Price for member | Free |
Other parts
- Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 1: Summary and General Matters
- Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 2: SF6 Circuit Breakers
- Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 3: Disconnectors and Earthing Switches
- Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 5 - Gas Insulated Switchgear
- Final Report of the 2004 - 2007 International Enquiry on Reliability of High Voltage Equipment - Part 6: GIS Practices
