IEEE C57.13.1 2017:2018 Edition
$33.58
IEEE Guide for Field Testing of Relaying Current Transformers
| Published By | Publication Date | Number of Pages |
| IEEE | 2018 | 46 |
Revision Standard – Active. This guide describes field test methods that assure that current transformers are connected properly, are of marked ratio and polarity, and are in a condition to perform as designed both initially and after having been in service for a period of time.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.13.1™-2017 Front cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 7 | Participants |
| 9 | Introduction |
| 10 | Contents |
| 12 | 1. Overview 1.1 Scope 1.2 Purpose 2. Normative references |
| 13 | 3. Definitions 4. Consideration of American National Standards Institute (ANSI) accuracy classes 5. Precautions in field testing current transformers (CTs) |
| 14 | 5.1 Demagnetizing CTs 5.2 Greater primary winding turns 6. Types of tests and measurements 6.1 Ratio test 6.2 Polarity test |
| 15 | 6.3 Insulation resistance test 6.4 Resistance measurement 6.5 Excitation test 6.6 Admittance test 6.7 Burden test 7. AC sources for primary current injection tests |
| 16 | 8. Ratio tests 8.1 Voltage method 8.2 Out-of-service current method |
| 18 | 8.3 In-service current manual method 8.4 In-service current automated method 9. Polarity test 9.1 DC voltage test |
| 19 | 9.2 AC voltage test—oscilloscope |
| 20 | 9.3 Current method 9.4 Phase angle method |
| 22 | 10. Insulation resistance tests |
| 23 | 11. Winding and lead resistance (internal resistance) |
| 24 | 12. Excitation test 12.1 Safety 12.2 Type of test |
| 25 | 12.3 How to interpret the test results |
| 29 | 13. Admittance test 14. Burden tests |
| 30 | 15. Burden measurements 16. Specialized situations 16.1 CT in a closed-delta transformer connection |
| 31 | 16.2 Generator CTs 16.3 Inter-core coupling check |
| 34 | Annex A (informative) Wiring integrity, test switches, and test equipment A.1 Wiring integrity A.2 Test switches |
| 37 | Annex B (informative) Excitation voltage measurement considerations B.1 Why average? B.2 Typical test results B.3 Effect of source impedance |
| 38 | B.4 Waveform simulation |
| 42 | Annex C (informative) Optical current sensor systems C.1 Components of optical current sensor systems |
| 43 | C.2 Why optical sensor systems are used—characteristics and benefits C.3 Conventional transformers characteristics and issues that are not applicable in the field testing of optical current sensors C.4 Field testing of optical current sensor |
| 45 | Annex D (informative) Bibliography |
| 46 | Back cover |
