BS EN 61869-4:2014
$102.76
Instrument transformers – Additional requirements for combined transformers
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 26 |
This part of IEC 61869 applies to newly-manufactured combined transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
The requirements and tests of this standard, in addition to the requirements and tests of IEC 61869‑1 , IEC 61869‑2 and IEC 61869‑3 cover current and inductive voltage transformers that are necessary for combined instrument transformers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 7 | FOREWORD |
| 11 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations |
| 14 | 4 Normal and special service conditions 5 Ratings 6 Design and construction |
| 15 | 7 Tests Table 10 – List of tests |
| 20 | Figure 403 – Measurement 5 Figure 402 – Measurement 4 |
| 21 | Figure 404 – Error diagram of a voltage transformer class 0,2 Figure 405 – Error diagram of a current transformer class 0,2 at 5 % of rated current |
| 22 | 8 Rules for transport, storage, erection, operation and maintenance 9 Safety 10 Influence of products on the natural environment Annexes |
| 23 | Annex 4A (normative) The mutual influence of current and voltage transformers |
| 24 | Figure 4A.1 – Current conductor and magnetic field influencing a voltage transformer |
