IEEE C37.245 2018:2019 Edition
$53.08
IEEE Guide for the Application of Protective Relaying for Phase-Shifting Transformers
| Published By | Publication Date | Number of Pages |
| IEEE | 2019 | 71 |
New IEEE Standard – Active. Protection methods for different types of phase shifting transformers (PST) are provided in this guide, and the interaction between protection and operating conditions of PSTs is discussed. Models representing PSTs to determine short circuit currents for relaying functions are presented. Sizing and location issues of protection current transformers employed in the protection of PSTs are included. Examples of appropriate relay applications and settings are provided.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C37.245™-2018 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 | List of Tables |
| 14 | 1. Overview 1.1 Scope 1.2 Purpose 2. Normative references 3. Acronyms and abbreviations |
| 15 | 4. Device numbers 5. Application and theory of PSTs 5.1 Introduction |
| 16 | 5.2 Basic principle of application |
| 19 | 5.3 Installation configurations |
| 20 | 6. Types of PSTs |
| 21 | 6.1 Single-core PSTs |
| 23 | 6.2 Two-core PSTs |
| 25 | 7. Equivalent MVA of the PST |
| 26 | 7.1 MVA calculation for single-core PSTs 7.2 MVA calculation for two-core PSTs |
| 27 | 8. PST overload mitigation |
| 28 | 8.1 Tap changer switching contact overcurrent mitigation for extreme overloads 9. Instrument transformers 9.1 Current transformers (CTs) |
| 29 | 9.2 Voltage transformers (VTs) 10. Short circuit study 10.1 General |
| 30 | 10.2 Fault current transfer from load to source side |
| 32 | 10.3 Modeling of PST for short circuit programs |
| 34 | 10.4 Short circuit cases to consider |
| 35 | 11. Protection 11.1 Introduction to PST protection |
| 36 | 11.2 Differential protection |
| 51 | 11.3 Circulating current (bypass off neutral) protection |
| 52 | 11.4 Overcurrent protection |
| 54 | 11.5 Current balance protection 11.6 Distance protection |
| 55 | 11.7 Sudden pressure and Buchholz relays |
| 56 | 11.8 Transmission line relays |
| 57 | Annex A (informative) Setting example, sequence component differential scheme A.1 Application background |
| 59 | A.2 87P Setting calculations A.3 POTT scheme setting calculations |
| 61 | A.4 Sequence component differential elements |
| 65 | Annex B (informative) Setting example, 87S phase, and magnitude compensation B.1 Application background B.2 PST nameplate data B.3 Secondary winding ampere turns differential calculations |
| 69 | Annex C (informative) Bibliography |
| 71 | Back cover |
