IEC 61363-1:1998

Foreword
Clause
1 Scope and object
2 Normative references
3 Definitions, symbols, subscripts and superscripts
  3.1 Definitions
  3.2 Symbols
  3.3 Subscripts
  3.4 Superscripts
4 Introductory information
  4.1 General
  4.2 Calculation accuracy
  4.3 Basic assumptions
  4.4 Calculation methods
5 System components and models
  5.1 Active components
  5.2 Non-active components
6 Simplifying assumptions
  6.1 General
  6.2 Synchronous machines
  6.3 Asynchronous motors
7 Application of the equivalent generator
  7.1 General
  7.2 Assumptions
  7.3 Evaluation of the equivalent motor
  7.4 Evaluation of the equivalent generator
8 System calculations
  8.1 General
  8.2 Effects of non-active components
      connected in series with active components
  8.3 Short-circuit current at the generator busbars
  8.4 Short-circuit currents at secondary busses directly
      connected to the generator bus
  8.5 Transformers
  8.6 Semi-conductor converters used on variable speed drives
  8.7 Calculation procedures
9 Interpretation and application of the results

Outlines procedures for calculating short-circuit currents that may occur on a marine or offshore a.c. electrical installation. The calculation methods are for use on unmeshed three-phase alternating current systems. This standard cancels and replaces IEC 60363, published in 1972.