IEEE C57.13.1 1981
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IEEE Guide for Field Testing of Relaying Current Transformers
Published By | Publication Date | Number of Pages |
IEEE | 1981 | 17 |
New IEEE Standard – Inactive – Superseded. A description is given of field-test methods that will ensure that the current transformers used as a source of relay input current are connected properly, are of marked ratio and polarity, and are in condition to perform as designed both initially and after a period of service. The standard covers safety considerations; current transformer types and construction and the effect of these on test methods; insulation resistance tests; ratio tests; polarity check; winding and lead resistance (internal resistance); excitation tests; burden measurements; and specialized situations.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | Title Page |
3 | Introduction Participants |
5 | CONTENTS |
7 | 1. Introduction 2. Consideration of American National Standards Institute |
8 | 3. Safety Considerations in Field Testing Current Transformers 4. Current Transformer Types, Construction, Effect On Test Methods 4.1 Bushing, Window, or Bar-Type Current Transformers with Uniformly Distributed Windings 4.2 Wound Current Transformers, or Those without Uniformly Distributed Windings |
9 | 4.3 Consideration of Remanence |
10 | 5. Insulation Resistance Tests 6. Ratio Tests 6.1 Voltage Method |
11 | 6.2 Current Method |
12 | 7. Polarity Check 7.1 DC Voltage Test 7.2 AC Voltage Test ā Oscilloscope |
13 | 7.3 Current Method |
14 | 8. Winding and Lead Resistance (Internal Resistance) 9. Excitation Test |
16 | 10. Burden Measurements 11. Specialized Situations 11.1 Current Transformers in a Closed-Delta Transformer Connection 11.2 Generator Current Transformers |
17 | 11.3 Intercore Coupling Check |