IEEE C57.13 2008
$60.13
IEEE Standard Requirements for Instrument Transformers
Published By | Publication Date | Number of Pages |
IEEE | 2008 | 94 |
Revision Standard – Active. Electrical, dimensional, and mechanical characteristics are covered, taking into consideration certain safety features, for current and inductively coupled voltage transformers of types generally used in the measurement of electricity and the control of equipment associated with the generation, transmission, and distribution of alternating current. The aim is to provide a basis for performance and interchangeability of equipment covered and to assist in the proper selection of such equipment. Safety precautions are also addressed. Accuracy classes for metering service are provided. The test code covers measurement and calculation of ratio and phase angle, demagnetization, impedance and excitation measurements, polarity determination, resistance measurements, short-time characteristics, temperature rise tests, dielectric tests, and measurement of open-circuit voltage of current transformers.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | IEEE Std C57.13-2008 Front Cover |
3 | Title Page |
4 | Abstract/Keywords |
6 | Introduction Notice to users Laws and regulations Copyrights |
7 | Updating of IEEE documents Errata Interpretations Patents |
8 | Participants |
10 | Contents |
13 | IMPORTANT NOTICE 1. Overview 1.1 Scope 1.2 Purpose |
14 | 2. Normative references 3. Definitions |
15 | 4. General requirements 4.1 Service conditions |
16 | 4.2 Effect of air density on flashover voltage 4.3 Frequency |
17 | 4.4 Effect of altitude on temperature rise and effect of ambient temperature on permissible loading 4.5 Basic impulse insulation levels, dielectric tests, and outdoor instrument transformer creepage distance and wet tests |
20 | 4.6 Temperature rise |
21 | 4.7 Tests |
22 | 4.8 Construction |
24 | 5. Accuracy classes for metering 5.1 Basis for accuracy classes |
25 | 5.2 Expression of Transformer Correction Factor at 0.6 power factor (lagging) of meteredload 5.3 Standard accuracy classes 5.4 Limiting values of Ratio Correction Factor and phase angle for standard accuracy classes |
27 | 6. Current transformers 6.1 Terms in which ratings shall be expressed 6.2 Standard burdens |
28 | 6.3 Accuracy ratings for metering |
30 | 6.4 Accuracy ratings for relaying |
31 | 6.5 Continuous thermal current rating factors based on 30 °C average ambient air temperature 6.6 Short time current ratings |
32 | 6.7 Secondary winding-induced voltages |
33 | 6.8 Nameplates 6.9 Terminals 6.10 Application data |
35 | 6.11 Routine accuracy tests 7. Voltage transformers 7.1 Terms in which ratings shall be expressed |
41 | 7.2 Standard burdens |
42 | 7.3 Accuracy ratings 7.4 Thermal burden ratings 7.5 Nameplates |
43 | 7.6 Terminals 7.7 Short-circuit capability 7.8 Application data 7.9 Induced voltage test |
44 | 7.10 Routine accuracy tests 8. Test code 8.1 Ratio and phase angle measurement and calculations |
62 | 8.2 Demagnetization |
64 | 8.3 Impedance and excitation measurements |
69 | 8.4 Polarity |
72 | 8.5 Resistance measurements |
74 | 8.6 Short-time characteristics |
78 | 8.7 Temperature rise tests |
82 | 8.8 Dielectric tests |
86 | 8.9 Measurement of open-circuit voltage of current transformers |
88 | 8.10 Partial discharge measurement |
92 | Annex A (informative)Bibliography |