ELECTRICAL INSTALLATIONS OF SHIPS AND MOBILE AND FIXED OFFSHORE UNITS - PART 1: PROCEDURES FOR CALCULATING SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C.
International Electrotechnical Committee
Foreword<br>Clause<br>1 Scope and object<br>2 Normative references<br>3 Definitions, symbols, subscripts and superscripts<br> 3.1 Definitions<br> 3.2 Symbols<br> 3.3 Subscripts<br> 3.4 Superscripts<br>4 Introductory information<br> 4.1 General<br> 4.2 Calculation accuracy<br> 4.3 Basic assumptions<br> 4.4 Calculation methods<br>5 System components and models<br> 5.1 Active components<br> 5.2 Non-active components <br>6 Simplifying assumptions<br> 6.1 General<br> 6.2 Synchronous machines<br> 6.3 Asynchronous motors<br>7 Application of the equivalent generator<br> 7.1 General<br> 7.2 Assumptions<br> 7.3 Evaluation of the equivalent motor<br> 7.4 Evaluation of the equivalent generator<br>8 System calculations<br> 8.1 General<br> 8.2 Effects of non-active components <br> connected in series with active components<br> 8.3 Short-circuit current at the generator busbars<br> 8.4 Short-circuit currents at secondary busses directly <br> connected to the generator bus<br> 8.5 Transformers<br> 8.6 Semi-conductor converters used on variable speed drives<br> 8.7 Calculation procedures<br>9 Interpretation and application of the results
Describes procedures for calculating short-circuit currents that may occur on a marine or offshore a.c. electrical installation.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 18 |
