IEEE C57.131-2024
$57.42
IEEE Standard Performance Requirements and Test Methods for Tap-Changers (Approved Draft)
Published By | Publication Date | Number of Pages |
IEEE | 2024 | 86 |
Revision Standard – Active. Electrical and mechanical performance and test requirements for on-load tap-changers of both resistor and reactor types, de-energized tap-changers, and their motor-drive mechanisms installed in power and distribution transformers, reactors, and voltage regulators are covered.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | IEEE Std C57.131™-2024 Front cover |
2 | Title page |
4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
8 | Participants |
10 | Introduction |
11 | Contents |
13 | 1. Overview 1.1 Scope 1.2 Application 1.3 Word usage |
14 | 1.4 Utilization of normative references 2. Normative references |
15 | 3. Definitions, acronyms, and abbreviations 3.1 Definitions |
20 | 3.2 Acronyms and abbreviations 4. Service conditions 4.1 Temperature of tap-changer environment |
21 | 4.2 Temperature of tap-changer motor-drive mechanism environment 4.3 Overload conditions 5. Requirements for on-load tap-changers (OLTCs) 5.1 General requirements |
23 | 5.2 Type tests for OLTCs |
39 | 5.3 Routine tests for OLTCs |
40 | 6. Requirements for motor-drive mechanisms for OLTCs 6.1 General requirements |
42 | 6.2 Type tests for motor-drive mechanism |
43 | 6.3 Routine tests for motor-drive mechanism 7. Requirements for de-energized tap-changers 7.1 General requirements |
44 | 7.2 Type tests for DETCs |
50 | 7.3 DETC test report 7.4 Routine tests for DETCs |
51 | 7.5 DETC warning label 8. Requirements for motor-drive mechanisms for DETCs 8.1 General requirements |
52 | 8.2 Type tests for motor-drive mechanism |
53 | 8.3 Routine tests for motor-drive mechanism 9. Nameplate 9.1 On-load and de-energized tap-changers |
54 | 9.2 Motor-drive mechanisms 10. Manufacturer’s operating instructions |
55 | Annex A (normative) Switching duty relating to resistor type on-load tap-changers A.1 Duty on main and transition contacts |
67 | Annex B (normative) Switching duty relating to reactor type on-load tap-changers B.1 Additional test parameters B.2 Duty on switching contacts |
78 | Annex C (normative) Method for determining the equivalent temperature of the transition resistor using power pulse current |
79 | Annex D (informative) Simulated AC circuits for service duty and breaking capacity tests for resistor type on-load tap-changers D.1 General D.2 Transformer method |
80 | D.3 Resistance method |
82 | Annex E (informative) Example of a synthetic test circuit for service duty test of vacuum type tap-changers21 E.1 Definitions with relevance to the synthetic test circuit E.2 Example for the test setup of a synthetic test circuit |
83 | E.3 Example for breaking/making condition during a switching operation |
85 | Annex F (informative) Bibliography |
86 | Back cover |