IEC 61363-1:1998 PDF

Name: IEC 61363-1:1998 — Electrical installations of ships and mobile and fixed offshore units - Part 1: Procedures for calculating short-circuit currents in three-phase a.c.
SKU: IEC 61363-1:1998
Price: 35 EUR
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Electrical installations of ships and mobile and fixed offshore units - Part 1: Procedures for calculating short-circuit currents in three-phase a.c.

Название (английский):

IEC 61363-1:1998

Electrical installations of ships and mobile and fixed offshore units - Part 1: Procedures for calculating short-circuit currents in three-phase a.c.

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 81
Дата публикации:: 26 февраля 1998 г.
Издание:: IEC IS 61363 edition 1 version 1
ICS:: 47.020.60

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Описание (английский):

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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

IEC 61363-1:1998 is an international standard published by the International Electrotechnical Commission (IEC) that defines procedures for calculating short-circuit currents in three-phase alternating current (a.c.) electrical installations specific to ships and mobile or fixed offshore units. This standard provides detailed methods tailored for unmeshed three-phase a.c. systems commonly found in marine and offshore environments. It replaces the earlier IEC 60363 (1972), reflecting updated technology and practices.

This standard ensures accurate evaluation of short-circuit currents, essential for the design, operation, and safety of electrical installations in demanding marine and offshore settings.

Key Topics

Scope and Purpose IEC 61363-1 focuses on the procedures necessary for determining short-circuit currents in three-phase a.c. systems on ships and offshore platforms. It addresses both mobile units and fixed offshore installations, ensuring comprehensive coverage of maritime electrical safety.

Definitions and Symbols The standard provides clear definitions, symbols, subscripts, and superscripts used in short-circuit calculations. Reference is made to IEC 60050 (International Electrotechnical Vocabulary) and other IEC publications for standard terminology and graphical symbols.

System Components and Modeling The document details components used in these electrical systems, including:

Synchronous machines (generators and motors)
Asynchronous motors
Shaft generators
Converter-fed motors
Cables, transformers, and reactors

Accurate modeling of these components is critical for reliable short-circuit current calculations.

Calculation Methods and Assumptions Various calculation techniques are outlined, supported by simplifying assumptions to balance accuracy and complexity. The methods consider factors like stator resistance, motor preload conditions, and transient phenomena in short circuits.

Equivalent Generator Application Procedures are provided for evaluating equivalent machines and generators, which simplify complex system components into manageable models for calculation purposes.

System-Level Calculations Instructions for evaluating short-circuit currents on busbars, transformers, generators in parallel, and static converters are included to cover real-world system arrangements.

Interpretation of Results The standard guides users on interpreting short-circuit current calculations for low voltage (up to 1 kV) and medium voltage (above 1 kV) systems, ensuring results inform practical design and safety decisions.

Applications

Marine Electrical Installations This standard is vital for engineers designing and maintaining electrical systems on commercial ships, naval vessels, and other marine craft that rely on three-phase a.c. power.

Offshore Oil and Gas Platforms Ensuring reliable power systems offshore requires precise short-circuit current calculations to protect equipment and personnel on both fixed platforms and mobile offshore units (e.g., drilling rigs).

Safety and Protection System Design Accurate short-circuit current calculation supports the correct sizing of circuit protection devices such as circuit breakers and fuses, minimizing downtime and damage from fault conditions.

Regulatory Compliance Adherence to IEC 61363-1 facilitates compliance with international maritime electrical safety regulations, enhancing equipment certification and system approvals.

Engineering Studies and Simulations The documented procedures aid electrical engineers in performing comprehensive fault current studies, capacity evaluations, and system optimizations for complex marine power networks.

Related Standards

IEC 60050 – International Electrotechnical Vocabulary: Provides standardized terminology referenced in IEC 61363-1.

IEC 60027 – Letter Symbols to Be Used in Electrical Technology: Supports consistent symbol usage in calculations.

IEC 60417 – Graphical Symbols for Use on Equipment: Provides standard graphical symbols.

IEC 60617 – Graphical Symbols for Diagrams: Adds further clarity for technical documentation and schematics.

IEC 60363 – Previous version of this standard, now replaced.

Marine and Offshore Electrical Standards – Other IEC and IMO standards complement IEC 61363-1, covering aspects such as equipment installation, electromagnetic compatibility, and safety management.

By following IEC 61363-1:1998, maritime and offshore electrical engineers can perform precise, reliable short-circuit current calculations essential for safe and efficient design, operation, and maintenance of three-phase a.c. electrical installations in challenging marine environments. This standard is a cornerstone for electrical safety and performance in the marine and offshore sectors.

IEC 61363-1:1998 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

BS IEC 61363-1:1998

Electrical installations of ships and mobile and fixed offshore units - Procedures for calculating short-circ…

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