IEEE C57.143 2012
$61.21
IEEE Guide for Application for Monitoring Equipment to Liquid-Immersed Transformers and Components
Published By | Publication Date | Number of Pages |
IEEE | 2012 | 83 |
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 |