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GB/T 24841-2018: Technical specification for capacitor voltage transformers of 1 000 kV AC system
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24841-2018 | English | 279 |
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Technical specification for capacitor voltage transformers of 1 000 kV AC system
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GB/T 24841-2018
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Basic data | Standard ID | GB/T 24841-2018 (GB/T24841-2018) | | Description (Translated English) | Technical specification for capacitor voltage transformers of 1 000 kV AC system | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K41 | | Classification of International Standard | 29.180 | | Word Count Estimation | 14,128 | | Date of Issue | 2018-07-13 | | Date of Implementation | 2019-02-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 24841-2018: Technical specification for capacitor voltage transformers of 1 000 kV AC system---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.
Technical specification for capacitor voltage transformers of 1 000 kV AC system
ICS 29.180
K41
National Standards of People's Republic of China
Replace GB /Z 24841-2009
Capacitor voltage transformer for 1000kV AC system
specifications
Of1000kVACsystem
Published on.2018-07-13
Implementation of.2019-02-01
State Market Supervisory Administration
China National Standardization Administration issued
Content
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Conditions of use 2
5 Technical parameters and performance requirements 2
6 Structural requirements 6
7 Test 7
8 Life expectancy, packaging, transportation and storage 8
Appendix A (informative) Special conditions of use 9
Appendix B (informative) Special requirements for capacitive voltage transformers for 1000kV AC systems used as post insulators 11
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB /Z 24841-2009 "Technical Specifications for Capacitor Voltage Transformers for 1000kV AC Systems". versus
Compared with GB /Z 24841-2009, the main technical changes except editorial changes are as follows.
--- Some of the referenced documents have been added and revised in the normative references (see Chapter 2, Chapter 2 of the.2009 edition);
--- Definition of damage load added to terms and definitions (see Chapter 3);
--- Revised the technical parameters in the rated output (see 5.1.6, 5.1.6 of the.2009 edition);
--- Revised the technical parameters in the accuracy class (see 5.1.7, 5.1.7 of the.2009 edition);
--- Revised the technical parameters in the temperature coefficient of the capacitor divider capacitor (see 5.1.10, 5.1.10 of the.2009 edition);
--- Revised some of the technical parameters in ferromagnetic resonance (see 5.2.1, 5.2.1 of.2009 edition);
--- Added and revised some of the technical parameters of the external insulation requirements (see 5.2.10, 5.2.10 of the.2009 edition);
--- Revised the number and parameters of the pressure equalizing ring in the pressure equalization device (see 6.3, 6.3 of the.2009 edition);
--- Increased the test items in the type test (see 7.2);
--- Revised the formula for calculating the altitude correction factor (see A.1,.2009 edition of A.1);
--- Revised the temperature range in ambient temperature (see A.2,.2009 edition of A.2);
--- Added special requirements for capacitive voltage transformers that double as post insulators (see Appendix B).
This standard was proposed by the China Electricity Council.
This standard is under the jurisdiction of the National UHV AC Transmission Standardization Technical Committee (SAC/TC569).
This standard is drafted by. State Grid Corporation, China Electric Power Research Institute Co., Ltd.
Participated in the drafting of this standard. Guilin Power Capacitor Co., Ltd., Xi'an Xidian Power Capacitor Co., Ltd., Nisshin
Machine (Wuxi) Co., Ltd., State Grid Hubei Electric Power Company Electric Power Research Institute, State Grid Henan Electric Power Company Electric Power Research Institute.
The main drafters of this standard. Wang Xiaoqi, Ma Yue, Qiu Ning, Wu Shipu, Chen Guoqiang, Chen Xiaoming, Wang Zengwen, Ren Chunyang, Sun Min, Jin Tao,
Zhao Yufu, Mao Anzhen.
The previous versions of the standards replaced by this standard are.
---GB /Z 24841-2009.
Capacitor voltage transformer for 1000kV AC system
specifications
1 Scope
This standard specifies the use conditions, technical parameters and performance requirements, and structural requirements of capacitive voltage transformers for 1000kV AC systems.
Requirements, tests, life expectancy, packaging, transportation and storage.
This standard is applicable to 1000kV capacitive voltage transformers used in AC systems with a nominal voltage of 1000kV and a frequency of 50Hz.
Selection, manufacturing, testing and acceptance.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2900.16 Electrotechnical terminology power capacitor
GB/T 2900.50 Electrotechnical terminology General term for power generation, transmission and distribution
GB/T 2900.57 Electrotechnical terminology for power generation, transmission and distribution operation
GB/T 2900.94 Electrotechnical terminology transformer
GB/T 13540 high-voltage switchgear and control equipment for seismic requirements
GB/T 19749.1 Coupling capacitors and capacitor dividers - Part 1. General
GB/T 20840.1 Transformers - Part 1. General technical requirements
GB/T 20840.5 Transformers - Part 5. Supplementary technical requirements for capacitive voltage transformers
3 Terms and definitions
GB/T 2900.16, GB/T 2900.50, GB/T 2900.57, GB/T 2900.94, GB/T 20840.1, GB/T 20840.5
And the following terms and definitions apply to this document.
3.1
Stacked structure stackingstructure
The capacitive voltage divider and the electromagnetic unit are structurally integrated, and the piezoelectric divider and the electromagnetic unit are electrically connected internally.
3.2
Non-stacked structure non-stackingstructure
The capacitive voltage divider and the electromagnetic unit are structurally separated, and the capacitive voltage divider and the electromagnetic unit are externally electrically connected through the outlet bushing.
connection.
3.3
Destructive load breakingload
Vertically acting on the longitudinal axis of the porcelain sleeve or composite jacket transformer, resulting in mechanical damage to the transformer casing.
3.4
Running variationationofoperation
The error is affected by the operating environment and can be caused by operating conditions such as ambient temperature, proximity effects, contamination, and the like.
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