Section 10 Converter equipment
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 6 Control and Electrical Engineering - Chapter 2 Electrical Engineering - Section 10 Converter equipment

Section 10 Converter equipment

Parent topic: Chapter 2 Electrical Engineering

10.1 Transformers

10.1.1 The requirements for transformers are given in IEC 61892-3:2012, Mobile and fixed offshore units – Electrical installations – Part 3: Equipment, Section 6 and Pt 6, Ch 2, 10.1 Transformers of the Rules for Ships, which are to be complied with. Additions or amendments to these requirements are given in the following paragraph(s) of this sub-Section.

10.1.2 Transformers are to comply with the requirements of IEC Publications 60076, Power transformers, or alternative relevant International or National Standards amended where necessary for ambient temperature, see Pt 6, Ch 2, 1.9 Ambient reference and operating conditions.

10.2 Semi-conductor converters

10.2.1 The requirements for semi-conductor converters are given in IEC 61892-3:2013, Mobile and fixed offshore units – Electrical installations – Part 3: Equipment, Section 8 and Pt 6, Ch 2, 10.2 Semiconductor converters of the Rules for Ships, which are to be complied with. Additions or amendments to these requirements are given in the following paragraph(s) of this sub-Section.

10.2.2 Semi-conductor converters are to comply with the requirements of IEC 60146: Semi-conductor Converters, or alternative relevant International or National Standards amended where necessary for ambient temperature, see Pt 6, Ch 2, 1.9 Ambient reference and operating conditions.

10.3 Uninterruptible power systems (UPS)

10.3.1 The requirements for uninterruptible power systems are given in IEC 61892-3:2012, Mobile and fixed offshore units – Electrical installations – Part 3: Equipment, Sections 8 and 9, and Pt 6, Ch 2, 10.3 Uninterruptible power systems of the Rules for Ships, which are to be complied with. Additions or amendments to these requirements are given in the following paragraph(s) of this sub-Section.

10.3.2 UPS units are to comply with the requirements of IEC 62040, Uninterruptible power systems (UPS) – Part 1: General and safety requirements for UPS, or alternative relevant International or National Standard amended where necessary for ambient temperature, see Pt 6, Ch 2, 1.9 Ambient reference and operating conditions.

10.3.3 A.C. Uninterruptable Power Systems (UPSs) shall have isolated neutrals or TN-S, see Pt 6, Ch 2, 5.1 Systems of supply and distribution.

10.3.4 An external bypass, that is hardwired and manually operated, is to be provided to the UPS system, to allow for isolation of the UPS for safety during maintenance and maintain continuity of load power. When the UPS is operating in either normal or by-pass mode it must be ensured that there are no multiple system earths.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.