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GB/T 32825-2024: Technical parameters and requirements for three-phase dry-type tridimensional wound core power transformers
Status: Valid GB/T 32825: Evolution and historical versions
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| GB/T 32825-2024 | English | 439 |
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Technical parameters and requirements for three-phase dry-type tridimensional wound core power transformers
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GB/T 32825-2024
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| GB/T 32825-2016 | English | 219 |
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Specification and technical requirements for three-phase dry-type tridimensional wound-core distribution transformers
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GB/T 32825-2016
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PDF similar to GB/T 32825-2024
Basic data | Standard ID | GB/T 32825-2024 (GB/T32825-2024) | | Description (Translated English) | Technical parameters and requirements for three-phase dry-type tridimensional wound core power transformers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K41 | | Classification of International Standard | 29.180 | | Word Count Estimation | 22,223 | | Date of Issue | 2024-12-31 | | Date of Implementation | 2025-07-01 | | Older Standard (superseded by this standard) | GB/T 32825-2016 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 32825-2024: Technical parameters and requirements for three-phase dry-type tridimensional wound core power transformers
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 29.180
CCSK41
National Standard of the People's Republic of China
Replace GB/T 32825-2016
Three-phase dry type three-dimensional wound core power transformer
Technical parameters and requirements
Released on 2024-12-31
2025-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Performance parameters 1
5 Technical Requirements12
6 Inspection rules and methods 15
7 Marking, packaging, transportation and storage 16
Table 1 6kV and 10kV 30kVA~4000kVA three-phase dry-type non-excitation voltage regulating electrical steel three-dimensional coil core distribution transformer
Compressor 2
Table 2 6kV and 10kV 630kVA~12500kVA three-phase dry-type non-excitation voltage regulating electrical steel three-dimensional coil core power transformer
Compressor 3
Table 3 6kV and 10kV 315kVA~4000kVA three-phase dry-type on-load voltage regulating electrical steel three-dimensional coil core distribution transformer 4
Table 4 6kV and 10kV 30kVA~4000kVA three-phase dry non-excitation voltage regulating amorphous alloy three-dimensional winding core distribution transformer
Pressure 5
Table 5 20kV 50kVA~4000kVA three-phase dry-type non-excitation voltage regulating electrical steel three-dimensional winding core distribution transformer 6
Table 6 20kV 50kVA~4000kVA three-phase dry-type non-excitation voltage regulating amorphous alloy three-dimensional winding core distribution transformer 7
Table 7 35kV 50kVA~4000kVA three-phase dry-type non-excitation voltage regulating electrical steel three-dimensional winding core distribution transformer 8
Table 8 35kV 800kVA~25000kVA three-phase dry-type non-excitation voltage regulating electrical steel three-dimensional winding core power transformer 9
Table 9 35kV.2000kVA~25000kVA three-phase dry-type on-load voltage regulating electrical steel three-dimensional winding core power transformer 10
Table 10 35kV 50kVA~4000kVA three-phase dry-type non-excitation voltage regulating amorphous alloy three-dimensional winding core distribution transformer 11
Table 11 Sound power level limits for 6kV and 10kV three-phase dry-type electrical steel three-dimensional wound core transformers 12
Table 12 Sound power level limits for 6kV and 10kV three-phase dry-type amorphous alloy three-dimensional wound core transformers 13
Table 13 Sound power level limits for 20kV and 35kV three-phase dry-type electrical steel three-dimensional wound core transformers 13
Table 14 Sound power level limits for 20kV and 35kV three-phase dry-type amorphous alloy three-dimensional wound core transformers 14
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 32825-2016 "Technical parameters and requirements for three-phase dry-type three-dimensional wound core distribution transformers" and
Compared with GB/T 32825-2016, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the scope, the applicable voltage level of the product has been increased to 20kV and 35kV, and the core material has been expanded to electrical steel and amorphous alloy
Gold (see Chapter 1, Chapter 1 of the.2016 edition);
--- Changed the performance parameters to further reduce the loss parameters and loss level of 6kV and 10kV non-excitation voltage regulating distribution transformers
The codes were changed from "Type 11", "Type 12" and "Type 13" to "Type 12", "Type 14" and "Type 18" (see Table 1,.2016 Edition).
Table 1);
---Added 6kV and 10kV off-excitation voltage regulating power transformers and on-load voltage regulating distribution transformers, 20kV off-excitation voltage regulating
Distribution transformers, 35kV off-excitation voltage-regulating distribution transformers, off-excitation voltage-regulating power transformers and on-load voltage-regulating power transformers
Performance parameters (see Table 2 to Table 10);
---Changed the sound power level limits for 6kV and 10kV transformers, and added the sound power level limits for 20kV and 35kV transformers
Limits (see Tables 11 to 14, Table 2 of the.2016 edition);
--- Changed the technical requirements, deleted the "Schematic diagram of the base installation positioning hole device", and adjusted the hole center distance size; added
The insulation resistance value, the no-load loss increment of the transformer with amorphous alloy core before and after the short-circuit current impact, and the transformer
The inlet and outlet lines need to add requirements on how to calculate the load loss when extending the busbar (see 5.3, 5.8, 5.11, 5.12,
5.8 of the.2016 edition);
--- Changed the inspection rules and methods, adjusted the requirements for measuring the winding resistance unbalance rate, added on-load tap changer test and temperature
Supplementary test requirements for the lifting test (see 6.2, 6.4, 6.5, 6.2 of the.2016 edition).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee on Standardization of Transformers (SAC/TC44).
This document was drafted by. Shenyang Transformer Research Institute Co., Ltd., Haihong Electric Co., Ltd., Golden Triangle Electric Power Technology Co., Ltd.,
Guangxi Nanbaote Electric Manufacturing Co., Ltd., Mingzhu Electric Co., Ltd., Ningbo Aux Intelligent Technology Co., Ltd., Jiangsu Huachen
Transformer Co., Ltd., Hebei Gaojing Electrical Equipment Co., Ltd., Guangdong Kangdewei Electric Co., Ltd., Xi'an High Voltage Electrical Equipment Research
China Electric Power Research Institute Co., Ltd., Guangdong Kaifang Electric Co., Ltd., China Electric Power Research Institute Co., Ltd., Shanghai Zhixin Electric Co., Ltd., TBEA
Electric Intelligent Electric Co., Ltd., TBEA Hengyang Transformer Co., Ltd., Zhejiang Jiangshan Transformer Co., Ltd., Shandong Electric Power
EQUIPMENT LIMITED.
The main drafters of this document are. Zhang Zhongguo, Liang Qingning, Cai Xinhua, Yang Miao, Wei Xiaoxian, Cai Dingguo, Liu Tianfeng, Jiang Shuowen, Cao Jianfei,
Wang Wenguang, Li Xuanjiannan, Xu Kaixuan, Ying Si, Yang Qingfu, Fang Yujie, Su Zhonghuan, Jiang Zhenjun, Guo Penghong, and Dong Honglin.
This document was first published in.2016 and this is the first revision.
Three-phase dry type three-dimensional wound core power transformer
Technical parameters and requirements
1 Scope
This document specifies the performance parameters, technical requirements, marking,
Requirements for packaging, transportation and storage, and descriptions of inspection rules and methods.
This document is applicable to rated capacity of 30kVA and above, rated frequency of 50Hz, indoor use, core material is electrical steel and non
Crystalline alloy, voltage levels of 6kV, 10kV, 20kV and 35kV non-excitation voltage regulation and load voltage regulation three-phase dry three-dimensional winding iron core power
Manufacture of transformers.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 191 Pictorial markings for packaging, storage and transportation
GB/T 1094.1 Power transformers Part 1.General
GB/T 1094.11 Power transformers Part 11.Dry-type transformers
GB/T 1094.12 Power transformers Part 12.Duty guidelines for dry-type power transformers
GB/T 2900.95 Electrical terminology transformers, voltage regulators and reactors
GB/T 5273 Standardization of dimensions of high voltage electrical terminals
GB/T 5465.2 Graphical symbols for electrical equipment Part 2.Graphical symbols
GB/T 22072 Technical parameters and requirements for dry-type amorphous alloy core distribution transformers
JB/T 501 Power Transformer Test Guidelines
3 Terms and definitions
The terms and definitions defined in GB/T 1094.1, GB/T 1094.11, GB/T 2900.95 and GB/T 22072 and the following terms and definitions apply
This document.
3.1
The core is arranged in a triangular shape and is composed of three single-frame wound cores of the same geometric size.
3.2
An electric transformer with a three-dimensional wound iron core as its magnetic circuit.
4 Performance parameters
4.1 Rated capacity, voltage combination and tapping range, connection group number, no-load loss, load loss, no-load
The load current and short-circuit impedance should comply with the requirements of Table 1 to Table 4.
Note. The transformer cooling methods corresponding to the performance parameters in Tables 1 to 4 are all self-cooling (AN).
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