IEEE C37.20.3-2023
$59.58
IEEE Standard for Metal-Enclosed Interrupter Switchgear Rated above 1 kV AC up to and Including 48.3 kV AC (Published)
| Published By | Publication Date | Number of Pages |
| IEEE | 2023 | 92 |
Revision Standard – Active. Metal-enclosed interrupter (MEI) switchgear assemblies containing, but not limited to, such devices as interrupter switches; selector switches; power fuses; circuit breakers; control, instrumentation and metering devices; and protective equipment are included in this standard. It includes, but is not specifically limited to, equipment for the control and protection of apparatus used for distribution of electrical power.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C37.20.3™-2023 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 9 | Introduction |
| 11 | Contents |
| 13 | 1. Overview 1.1 Scope 1.2 Purpose 1.3 Word usage |
| 14 | 2. Normative references |
| 16 | 3. Definitions, acronyms, and abbreviations 3.1 Definitions |
| 17 | 4. Service conditions |
| 18 | 5. Ratings 5.1 General 5.2 Voltage and insulation levels |
| 19 | 5.3 Rated power frequency (fr) 5.4 Rated current |
| 21 | 5.5 Temperature limitations |
| 23 | 5.6 Current transformer ratings |
| 24 | 5.7 Voltage transformers 5.8 Current-sensing devices other than conventional current transformers 6. Tests 6.1 General |
| 25 | 6.2 Design tests |
| 44 | 6.3 Production tests |
| 45 | 6.4 Conformance tests 6.5 Field dielectric tests |
| 46 | 6.6 Optional tests 7. Construction 7.1 Buses and primary connections |
| 47 | 7.2 Grounding and bonding |
| 48 | 7.3 Control and secondary circuits and devices, and all wiring |
| 52 | 7.4 Miscellaneous |
| 53 | 7.5 Materials, finishes, and color |
| 54 | 7.6 Precautionary labels 7.7 Barriers 7.8 Shutters |
| 55 | 7.9 Interlocks |
| 56 | 7.10 Interchangeability of removable switching and interrupting devices 7.11 Enclosure categories |
| 57 | 7.12 Switching devices open/close position indication 7.13 Voltage dividers 7.14 Ground and test devices 8. Application guide for MEI switchgear 8.1 Unusual service conditions |
| 61 | 8.2 System characteristics—voltage and frequency 8.3 Overvoltage considerations—insulation levels 8.4 Continuous current rating and overload capability |
| 68 | 8.5 Short-circuit considerations 8.6 Nuclear power plant application 8.7 Associated devices often used in MEI switchgear |
| 70 | 8.8 Protection and isolation of switchgear connected to other circuit protective equipment 9. Guide for handling, storage, and installation 9.1 General 9.2 Handling |
| 72 | 9.3 Preoperation check |
| 73 | 9.4 Interrupters and removable elements 9.5 Interlocks 9.6 Energization |
| 74 | Annex A (normative) Guide for enclosure categories and related requirements A.1 Introduction A.2 Enclosure categories |
| 75 | A.3 Enclosure requirements |
| 81 | Annex B (informative) Partial discharge testing B.1 General B.2 Definitions |
| 82 | B.3 Application |
| 83 | B.4 Test procedure |
| 85 | B.5 Maximum permissible repeatedly occurring partial discharge quantity B.6 Reference material |
| 87 | Annex C (normative) Voltage dividers C.1 Introduction C.2 Definitions C.3 Construction |
| 88 | C.4 Performance |
| 90 | Annex D (informative) Bibliography |
| 92 | Back cover |
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IEEE C37.20.3-2023
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