IEEE C57.143-2012
$73.67
IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components
| Published By | Publication Date | Number of Pages |
| IEEE | 2012 |
New IEEE Standard – Active. Identification of the key parameters that can be monitored for obtaining an indication of the condition of liquid-immersed transformers is covered by this guide. It also covers risk/benefit analysis, sensor application, and monitoring systems application. This guide does not cover interpretation of monitoring results.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.143-2012 Front Cover |
| 3 | Title page |
| 6 | Notice to users Laws and regulations Copyrights Updating of IEEE documents Errata Patents |
| 7 | Introduction |
| 8 | Participants |
| 10 | CONTENTS |
| 12 | Important Notice 1. Overview 1.1 Scope 1.2 Purpose |
| 13 | 2. Normative references |
| 14 | 3. Definitions |
| 15 | 4. Surveillance needs of high-voltage transformers and accessories 4.1 General 4.2 Power transformers |
| 17 | 4.3 Instrument transformers |
| 19 | 4.4 Bushings |
| 21 | 4.5 Load tap changers |
| 27 | 5. Monitored parameters 5.1 General 5.2 Dissolved gas-in-oil analysis |
| 29 | 5.3 Moisture in oil |
| 30 | 5.4 Partial discharge |
| 32 | 5.5 Transformer temperatures 5.6 Winding temperatures |
| 33 | 5.7 Load current and voltage |
| 34 | 5.8 Insulation power factor 5.9 Pump/Fan operation |
| 35 | 5.10 Load tap changer (LTC) operations 5.11 Conservator membrane |
| 36 | 6. Monitoring systems and equipment 6.1 Monitoring system description 6.2 Sensors |
| 37 | 6.3 Hardware specification |
| 38 | 6.4 Signals 6.5 Signal acquisition |
| 39 | 6.6 Application of sensors |
| 40 | 6.7 Installation considerations |
| 42 | 6.8 Control function 6.9 Selecting communications hardware and protocols |
| 43 | 6.10 Data application |
| 44 | 6.11 Selection criterion for on-line monitoring system 6.12 On-line diagnostics for transformers |
| 45 | 7. Cost benefits 7.1 Introduction |
| 46 | 7.2 Inspection and maintenance costs |
| 47 | 7.3 Failure resolution cost |
| 54 | 7.4 Reinforcement of overload capability |
| 57 | 7.5 Deferring transformer replacement |
| 58 | 7.6 Monitoring system cost 7.7 Global evaluation |
| 59 | Annex A (informative) Bibliography |
| 65 | Annex B (informative) Bushing power factor and capacitance B.1 Introduction B.2 Current sum method |
| 66 | B.3 Tan δ method B.4 Relative Power Factor/Tan δ |
| 68 | Annex C (informative) Partial discharge: electrical and acoustic methods C.1 Introduction C.2 Electrical PD |
| 70 | C.3 Acoustic PD |
| 73 | Annex D (informative) Direct winding temperature D.1 Fluorescence decay time |
| 77 | D.2 Distributed temperature sensor |
| 79 | Annex E (informative) Communications protocols for on-line monitoring equipment E.1 Introduction E.2 The role and requirements of a protocol |
| 80 | E.3 Protocol selection |
| 81 | E.4 Recommended practice |
| 83 | E.5 Communication hardware considerations |
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