Summary
Read the summary in ELECTRAA new version of this Technical Brochure has been published: TB 962
Maintenance, availability and reliability are closely related and the transformer user has to specify a maintenance level that will ensure an acceptable reliability. This guide will help users to define and apply best maintenance: best practice, component selection, checking and testing in order to evaluate condition, time intervals for the various actions, advanced maintenance activities, human and material aspects of transformer maintenance.
Table of content
Chapter 1. Introduction
1.1. Guide for Transformer Maintenance
1.2. Transformer Operation and Maintenance Cycle
1.3. Standards and CIGRE References
Chapter 2. Maintenance Strategy
2.1. The Importance of Transformer Maintenance
2.2. Condition Monitoring
2.3. Time Based Maintenance and Time Based Condition Monitoring
2.4. Condition Based Maintenance
2.5. Corrective Maintenance
2.6. Continuous On-Line Monitoring
Chapter 3. Maintenance Process
3.1. Planning
3.2. Organization
3.3. Execution
3.4. Recording
3.5. Optimization
Chapter 4. Transformer Component Selection and Maintenance
4.1. Bushings
4.2. Oil Preservation Systems
4.3. Cooling Systems
4.4. Gaskets
4.5. Gauges, Indicators and Relays
4.6. Control Cabinet
4.7. Current Transformers
4.8. On-Load Tap Changer
4.9. De-energized Tap Changer
4.10. Lightning (Surge) Arresters
4.11. Transformer Active Part
4.12. Sensing and Monitoring Devices
Chapter 5. Maintenance Action Catalogue
5.1. Electrical Measurement Methods for On-Site Transformer Diagnosis
5.2. Dissolved Gas Analysis
5.3. Oil and Paper Tests
5.4. On-Load Tap Changer Tests
5.5. Maintenance Inspection Tasks
5.6. Insulation Drying
5.7. Physical and Chemical Oil Treatments
5.8. Treating Oil for Corrosive Sulphur Problems
5.9. Static Electrification and Maintenance
5.10. Precautions for Invasive Work
Chapter 6. Major Work – Transformer Repair
6.1. On-Site Repair
6.2. Advantages for On-Site Repair
6.3. Process for On-Site Repair
6.4. Economics
6.5. Environmental Considerations
Appendix.
1. Survey Results
2. SF6 Transformer Maintenance Particularities
3. Suggested Content for an Operation and Maintenance Manual
4. Maintenance Tracking
5. List of Acronyms Used in the Guide
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 445 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-134-3 |
| Study committees | |
| Working groups | WG A2.34 |
| File size | 2 MB |
| Pages number | 123 |
| Price for non member | 230 € |
| Price for member | Free |
Authors
C. Rajotte, Convener (CA)
M. Foata (CA), P. Jarman (UK), F. Larese (FR), P. Lorin (CH), B. Pahlavanpour (UK), J-P. Patelli (FR), J. Velek (CZ), R. Willoughby (AU), N. Fantana (DE), H. Gago (ES), J. Gebauer (DE), P. Gervais (CA), M. Krueger (AT), G. Lawler (IR), R. Maina (IT), C. Moldoveanu (RO), P. Mueller (CH), D. Olan (CA), L. Paulhiac (FR), M. Pena (BR), E. Perez-Moreno (ES), S. Quintin (ES), V. Samoilis (GR), A. Shkolnik (IS), F. Simon (FR), B. Sparling (CA), P. Warczynski (PL)
Keywords
Maintenance, troubleshooting, survey, diagnostic testing, procedures, inspection, repair
