Standard No.:	GB/T 18494.2-2007
Chinese Name:	变流变压器 第2部分：高压直流输电用换流变压器
English Name:	Convertor transformers—Part 2:Transformers for HVDC applications
Professional Classification:	K41 Transformer
Professional Classification:	GB National Standard
ICS Classification:	29.180
Issued by:
Issued on:	2007-04-16
Implemented on:	2007-08-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
Delivery:	via email in 1-3 business day

1 Scope

This Part of GB/T 18494 applies to oil-immersed three-phase and single-phase convertor transformers for use in HVDC power transmission. It applies to transformers having two, three or multiple windings.
This Part does not apply to:
— Convertor transformers for industrial applications;
— Convertor transformers for traction applications.

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 18494. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 1094.1 Power Transformers — Part 1: General (GB 1094.1-1996, eqv IEC 60076-1.1903)
GB 1094.2 Power Transformers — Part 2: Temperature Rise (GB 1094.2-1996, eqv IEC 60076-2:1993)
GB 1094.3 Power Transformers — Part 3: Insulation Levels, Dielectric Tests and External Clearances in Air (GB 1094.3-2003, IEC 60076-3:2000, MOD)
GB 1094.5 Power Transformers — Part 5: Ability to Withstand Short Circuit (GB 1094.5-2003, IEC 60076-5:2000, MOD)
GB/T 1094.10 Power Transformers — Part 10: Determination of Sound Levels (GB/T 1094.10-2003, IEC 60076-10:2001, MOD)
GB/T 2900.15-1997 Electrotechnical Terminology — Transformer, Instrument Transformer, Voltage Regulator and Reactor (neq IEC 60050-421:1990; IEC 60050-321:1986)
GB/T 2900.33-2004 Electrotoechnical Terminology — Power Electronics (IEC 60050-551:1908, IDT)
GB/T 3859.1-1993 Semiconductor Convertors — Specification of Basic Requirements (eqv IEC 60146-1-1:1991)
GB/T 3859.2-1993 Semiconductor Convertors — Application Guide (eqv IEC 60146-1-2:1991)
GB/T 4109 Technical Specification of High Voltage Bushing (GB/T 4109-1999, eqv IEC 60137:1995)
GB/T 7354-2003 Partial Discharge Measurements (IEC 60270:2000, IDT)
GB 10230 On-load Tap-changers (GB 10230-1988, eqv IEC 60214:1987)
GB/T 13499-2002 Power Transformers — Application Guide (idt IEC 60076-8:1997)
GB/T 15164-1994 Loading Guide for Oil-immersed Power Transformers (idt IEC 60354:1991)
GB/T 17623-1998 Determination of Componental Contents of Gases Dissolved in Insulating Oil by Gas Chromatography Method (neq IEC 60567:1992)
GB/T 18494.1-2001 Convertor Transformers — Part 1: Transformers for Industrial Applications (idt IEC 61378-1:1997)

3 Terms and Definitions