IEEE C57.138 2016:2017 Edition
$50.38
IEEE Recommended Practice for Routine Impulse Tests for Distribution Transformers
| Published By | Publication Date | Number of Pages |
| IEEE | 2017 | 68 |
Revision Standard – Active. General test procedures for performing routine quality control tests that are suitable for high-volume, production line testing are included in this recommended practice. Transformer connections, test methods, circuit configurations, and failure detection methods are addressed. This recommended practice covers liquid-immersed, single- and three-phase distribution transformers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.138™-2016 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 7 | Participants |
| 9 | Introduction |
| 10 | Contents |
| 11 | List of Figures |
| 13 | 1. Overview 1.1 Scope 1.2 Purpose 2. Normative references |
| 14 | 3. Acronyms and abbreviations 4. General test procedures 5. Fault detection methods 6. Circuits for routine impulse testing 6.1 Impulse wave shape |
| 16 | 6.2 Transformer connections |
| 26 | 6.3 Grounding consideration |
| 27 | 7. Neutral current detection circuit 7.1 Ground current circuit |
| 28 | 7.2 Neutral-impedance circuit 7.3 CT circuit |
| 30 | 8. Failure detection method 8.1 Detection requirements 8.2 Comparison of wave shapes |
| 31 | 8.3 Automatic failure detection |
| 43 | 8.4 Special considerations |
| 44 | 9. Verification of detector sensitivity |
| 47 | Annex A (informative) Distribution transformer voltage distribution and impulse fault detection5 A.1 Introduction A.2 Components of an impulse current shunt |
| 48 | A.3 Fault detection in distribution and power transformers A.4 Equivalent network for single-section, layer-wound transformer coil |
| 50 | A.5 The effects of multiple winding sections |
| 60 | A.6 Turn-to-turn and layer-to-layer winding faults |
| 62 | A.7 High-voltage winding to ground faults |
| 65 | A.8 Effects of core saturation |
| 66 | A.9 Eliminating core saturation |
| 68 | Back cover |
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