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Position: Chinese Standard in English/GB/T 18494.2-2007
GB/T 18494.2-2007   Convertor transformers—Part 2:Transformers for HVDC applications (English Version)
Standard No.: GB/T 18494.2-2007 Status:superseded remind me the status change

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Language:English File Format:PDF
Word Count: 7000 words Price(USD):170.0 remind me the price change

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Implemented on:2007-8-1 Delivery: via email in 1 business day
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Standard No.: GB/T 18494.2-2007
English Name: Convertor transformers—Part 2:Transformers for HVDC applications
Chinese Name: 变流变压器 第2部分:高压直流输电用换流变压器
Chinese Classification: K41    Transformer
Professional Classification: GB    National Standard
Issued by: AQSIQ; SAC
Issued on: 2007-4-16
Implemented on: 2007-8-1
Status: superseded
Superseded by:GB/T 18494.2-2022 Convertor transformers—Part 2: Transformers for HVDC applications
Superseded on:2022-10-1
Abolished on:2022-10-01
Language: English
File Format: PDF
Word Count: 7000 words
Price(USD): 170.0
Delivery: via email in 1 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
Contents Foreword III Introduction V 1 Scope 2 Normative References 3 Terms and Definitions 4 Service Conditions 4.1 General 4.2 Temperature 4.3 Load current 4.4 Direction of power flow 5 List of Variables 6 Ratings 6.1 General 6.2 Rated voltage 6.3 Rated current 6.4 Rated frequency 6.5 Rated power 7 Tolerances 7.1 General 7.2 Short-circuit impedance tolerances 7.3 Guarantees 8 Losses 8.1 General 8.2 No-load loss 8.3 Load loss under rated power-frequency conditions 8.4 Load loss under service conditions 8.5 Determination of hot-spot temperature 9 Insulation Levels 9.1 Line windings 9.2 Valve windings 9.3 Induced voltage level with partial discharge measurements 10 Sound Level 10.1 General 10.2 Guaranteed sound-power levels 10.3 Sound-power level at site 11 Testing 11.1 General 11.2 Tests 11.3 Load-loss measurements 11.4 Factory dielectric tests 11.5 Temperature-rise test 11.6 Load-current test 11.7 Determination of transformer sound-power level 12 High-frequency Modelling 13 Loading of Transformer Above Rating 14 Bushings 14.1 AC bushings 14.2 Valve winding bushings 15 Tap-changer 15.1 General 15.2 Current wave shape
Referred in GB/T 18494.2-2007:
* GB 1094.1-2013 Power transformers--Part 1: General
* GB 1094.2-2013 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
* GB 1094.3-2003 Power transformers?Part 3:Insulation levels,dielectric tests and external clearances in air
* GB 1094.5-2008 Power transformers - Part 5: Ability to withstand short circuit
* GB/T 1094.10-2003 Power transformers - Part 10: Determination of sound
* GB/T 2900.15-1997 Electrotechnical terminology - Transformer, instrument transformer, voltage regulator and reactor
* GB/T 2900.33-2004 Electrotoechnical terminology - Power electronics
* GB/T 3859.1-1993 Semiconductor convertors—Specification of basic requirements
* GB/T 3859.2-1993 Semiconductor convertors Application guide
* GB/T 4109-2008 Insulated bushings for alternating voltages above 1 000V
* GB/T 7354-2003 Partial discharge measurements
* GB 10230-1988
* GB/T 13499-2002 Power transformers--Application guide
* GB/T 15164-1994
* GB/T 17623-1998 Determination of componental contents of gases dissolved in insulating oil by gas chromatography method
* GB/T 18494.1-2001 Convertor transformers - Part 1: transformers for industrial applications
GB/T 18494.2-2007 is referred in:
* GB/T 20838-2007 Specification and technical requirements of oil-immersed convertor transformers for HVDC applications
Code of China
Standard
GB/T 18494.2-2007  Convertor transformers—Part 2:Transformers for HVDC applications (English Version)
Standard No.GB/T 18494.2-2007
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count7000 words
Price(USD)170.0
Implemented on2007-8-1
Deliveryvia email in 1 business day
Detail of GB/T 18494.2-2007
Standard No.
GB/T 18494.2-2007
English Name
Convertor transformers—Part 2:Transformers for HVDC applications
Chinese Name
变流变压器 第2部分:高压直流输电用换流变压器
Chinese Classification
K41
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2007-4-16
Implemented on
2007-8-1
Status
superseded
Superseded by
GB/T 18494.2-2022 Convertor transformers—Part 2: Transformers for HVDC applications
Superseded on
2022-10-1
Abolished on
2022-10-01
Superseding
Language
English
File Format
PDF
Word Count
7000 words
Price(USD)
170.0
Keywords
GB/T 18494.2-2007, GB 18494.2-2007, GBT 18494.2-2007, GB/T18494.2-2007, GB/T 18494.2, GB/T18494.2, GB18494.2-2007, GB 18494.2, GB18494.2, GBT18494.2-2007, GBT 18494.2, GBT18494.2
Introduction of GB/T 18494.2-2007
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
Contents of GB/T 18494.2-2007
Contents Foreword III Introduction V 1 Scope 2 Normative References 3 Terms and Definitions 4 Service Conditions 4.1 General 4.2 Temperature 4.3 Load current 4.4 Direction of power flow 5 List of Variables 6 Ratings 6.1 General 6.2 Rated voltage 6.3 Rated current 6.4 Rated frequency 6.5 Rated power 7 Tolerances 7.1 General 7.2 Short-circuit impedance tolerances 7.3 Guarantees 8 Losses 8.1 General 8.2 No-load loss 8.3 Load loss under rated power-frequency conditions 8.4 Load loss under service conditions 8.5 Determination of hot-spot temperature 9 Insulation Levels 9.1 Line windings 9.2 Valve windings 9.3 Induced voltage level with partial discharge measurements 10 Sound Level 10.1 General 10.2 Guaranteed sound-power levels 10.3 Sound-power level at site 11 Testing 11.1 General 11.2 Tests 11.3 Load-loss measurements 11.4 Factory dielectric tests 11.5 Temperature-rise test 11.6 Load-current test 11.7 Determination of transformer sound-power level 12 High-frequency Modelling 13 Loading of Transformer Above Rating 14 Bushings 14.1 AC bushings 14.2 Valve winding bushings 15 Tap-changer 15.1 General 15.2 Current wave shape
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Keywords:
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