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 C57.131ā¢-2024 Front cover |
2 | Title page |
4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
8 | Participants |
10 | Introduction |
11 | Contents |
13 | 1.āOverview 1.1āScope 1.2āApplication 1.3āWord usage |
14 | 1.4āUtilization of normative references 2.āNormative references |
15 | 3.āDefinitions, acronyms, and abbreviations 3.1āDefinitions |
20 | 3.2āAcronyms and abbreviations 4.āService conditions 4.1āTemperature of tap-changer environment |
21 | 4.2āTemperature of tap-changer motor-drive mechanism environment 4.3āOverload conditions 5.āRequirements for on-load tap-changers (OLTCs) 5.1āGeneral requirements |
23 | 5.2āType tests for OLTCs |
39 | 5.3āRoutine tests for OLTCs |
40 | 6.āRequirements for motor-drive mechanisms for OLTCs 6.1āGeneral requirements |
42 | 6.2āType tests for motor-drive mechanism |
43 | 6.3āRoutine tests for motor-drive mechanism 7.āRequirements for de-energized tap-changers 7.1āGeneral requirements |
44 | 7.2āType tests for DETCs |
50 | 7.3āDETC test report 7.4āRoutine tests for DETCs |
51 | 7.5āDETC warning label 8.āRequirements for motor-drive mechanisms for DETCs 8.1āGeneral requirements |
52 | 8.2āType tests for motor-drive mechanism |
53 | 8.3āRoutine tests for motor-drive mechanism 9.āNameplate 9.1āOn-load and de-energized tap-changers |
54 | 9.2āMotor-drive mechanisms 10.āManufacturerās operating instructions |
55 | AnnexĀ A (normative) Switching duty relating to resistor type on-load tap-changers A.1āDuty on main and transition contacts |
67 | AnnexĀ B (normative) Switching duty relating to reactor type on-load tap-changers B.1āAdditional test parameters B.2āDuty on switching contacts |
78 | AnnexĀ C (normative) Method for determining the equivalent temperature of the transition resistor using power pulse current |
79 | AnnexĀ D (informative) Simulated AC circuits for service duty and breaking capacity tests for resistor type on-load tap-changers D.1āGeneral D.2āTransformer method |
80 | D.3āResistance method |
82 | AnnexĀ E (informative) Example of a synthetic test circuit for service duty test of vacuum type tap-changers21 E.1āDefinitions with relevance to the synthetic test circuit E.2āExample for the test setup of a synthetic test circuit |
83 | E.3āExample for breaking/making condition during a switching operation |
85 | AnnexĀ F (informative) Bibliography |
86 | Back cover |