INSTRUMENT TRANSFORMERS - PART 4: ADDITIONAL REQUIREMENTS FOR COMBINED TRANSFORMERS
International Electrotechnical Committee
FOREWORD<br>1 Scope<br>2 Normative references<br>3 Terms, definitions and abbreviations<br>4 Normal and special service conditions<br>5 Ratings<br>6 Design and construction<br>7 Tests<br>8 Rules for transport, storage, erection, operation <br> and maintenance<br>9 Safety<br>10 Influence of products on the natural environment<br>Annexes<br>Annex 4A (normative) - The mutual influence of current <br> and voltage transformers
Pertains to newly-manufactured combined transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 38 |
| Supersedes |
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