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GB/T 14824-2021: High-voltage alternating-current generator circuit-breakers
Status: Valid GB/T 14824: Evolution and historical versions
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High-voltage alternating-current generator circuit-breakers
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GB/T 14824-2021
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High-voltage alternating-current generator circuit-breaker
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Common technical requirements for generator circuitbreaker
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PDF similar to GB/T 14824-2021
Basic data | Standard ID | GB/T 14824-2021 (GB/T14824-2021) | | Description (Translated English) | High-voltage alternating-current generator circuit-breakers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K43 | | Word Count Estimation | 157,155 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14824-2021: High-voltage alternating-current generator circuit-breakers---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.
High-voltage alternating-current generator circuit-breakers
ICS 29.130.10
CCSK43
National Standards of People's Republic of China
Replace GB/T 14824-2008
High voltage alternator circuit breaker
Released on 2021-10-11
2022-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅴ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
3.1 General terms 2
3.2 Device 2
3.3 Parts of the device 2
3.4 Switchgear 3
3.5 Components of the generator circuit breaker 3
3.6 Operation 4
3.7 Characteristic parameters 5
3.8 Index of terms 13
4 Normal and special conditions of use 14
5 Rating 14
5.1 Overview 14
5.2 Rated voltage (Ur) 15
5.3 Rated insulation level 15
5.4 Rated frequency (fr) 15
5.5 Rated continuous current (Ir) 15
5.6 Rated short-time withstand current (Ik) 17
5.7 Rated peak withstand current (Ip) 17
5.8 Rated short-circuit duration (tk) 17
5.9 Rated supply voltage (Ua) of closing and opening devices and auxiliary and control circuits 17
5.10 Rated frequency of closing and opening devices and auxiliary circuits 17
5.11 Rated pressure of compressed air source for controllable pressure system 17
5.12 Rated charging level for insulation, breaking and/or operation 17
5.101 Rated short-circuit current 17
5.102 Rated short-circuit making current 20
5.103 Rated load switching current 20
5.104 Rated out-of-step closing and breaking current 20
5.105 Rated transient recovery voltage related to breaking current 20
5.106 Rated operating sequence 23
5.107 Rated time parameter 23
5.108 Number of mechanical operations 24
6 Design and structure 25
6.1 Requirements for liquids in generator circuit breakers 25
6.2 Requirements for gas in generator circuit breakers 25
6.3 Grounding of generator circuit breaker 25
6.4 Auxiliary and control equipment 25
6.5 Power operation 26
6.6 Energy storage operation 26
6.7 Does not rely on non-locking operations (operations that do not rely on manpower or power) 26
6.8 Manually operated drives 26
6.9 Trip unit operation 26
6.10 Low pressure and high pressure locking device 26
6.11 Nameplate 27
6.12 Interlocking device 28
6.13 Position indication 28
6.14 Degree of protection of the enclosure 28
6.15 Creepage distance 28
6.16 Gas and vacuum sealing 28
6.17 Liquid sealing 29
6.18 Fire hazard (flammability) 29
6.19 Electromagnetic compatibility (EMC) 29
6.20 X-ray emission 29
6.21 Corrosion 29
6.101 Requirements for synchronization between poles during single-in and single-point operations 29
6.102 General requirements for operation 29
6.103 Pressure limit of operating fluid 29
6.104 Escape hole 29
6.105 Warning signs 30
6.106 Manual 30
7 Type test 30
7.1 General 30
7.2 Insulation test 31
7.3 Radio interference voltage test 33
7.4 Measurement of loop resistance 33
7.5 Continuous current test 33
7.6 Short-time withstand current and peak withstand current test 35
7.7 Verification of protection level 35
7.8 Seal test 36
7.9 Electromagnetic compatibility (EMC) test 36
7.10 Additional tests for auxiliary and control circuits 36
7.11 X-ray test procedure of vacuum interrupter 36
7.101 Mechanical and environmental testing 36
7.102 Various regulations for closing and breaking test 44
7.103 System source short circuit closing and breaking test 63
7.104 Load current switching test 68
7.105 Generator source short-circuit current closing and breaking test 69
7.106 Out-of-step closing and opening test 76
7.107 Electrical life test 80
8 Factory test 80
8.1 Overview 80
8.2 Insulation test of the main circuit 80
8.3 Test of auxiliary and control circuits 80
8.4 Measurement of main circuit resistance 81
8.5 Seal test 81
8.6 Design and visual inspection 82
8.101 Mechanical operation test 82
9 Guidelines for the selection of generator circuit breakers 83
9.1 Overview 83
9.2 General selection conditions 83
9.3 Things to consider when selecting 85
10 Information provided with inquiry sheet, bidding document and order 106
10.1 Overview 106
10.2 Information provided with inquiry sheet and order 106
10.3 Information provided with the tender 107
11 Rules for transportation, storage, installation, operation and maintenance 108
11.1 Overview 108
11.2 Conditions during transportation, storage and installation 108
11.3 Installation 109
11.4 Run 112
11.5 Repair 112
12 Security 112
13 The impact of the product on the environment 112
Appendix A (informative) Structural changes of this document compared with IEC /IEEE62271-37-013.2015 113
Appendix B (normative) Application of mechanical characteristics and related requirements 117
Appendix C (informative) Application examples of generator circuit breakers 118
Appendix D (informative) Determination of asymmetry of generator source short-circuit breaking current 129
Appendix E (Normative) Tolerance of test parameters in type test 130
Appendix F (Normative) Type test records and reports 134
Appendix G (Normative) Humidity Test Procedure 138
Appendix H (Informative) Faults under the condition of three-winding step-up transformer 140
Appendix I (Informative) The generator circuit breaker is connected to the step-up transformer through a shielded cable --- Increase for system source faults
Examples of the impact of capacitance on TRV requirements 142
References 145
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 of Standardization Documents"
Drafting.
This document replaces GB/T 14824-2008 "High-Voltage Alternator Circuit Breaker", compared with GB/T 14824-2008, except for structural adjustments
In addition to the overall and editorial changes, the main technical changes are as follows.
---Modify the applicable system voltage range to 3kV~38kV, and increase the applicability of circuit breakers used in branch circuits for factory use
Ming (see Chapter 1, Chapter 1 of the.2008 edition);
---Added some terms and definitions, such as "switching equipment and control equipment" "medium asymmetry", etc., delete "(generator circuit breaker
) Excitation current switching capacity", add term index (see Chapter 3, Chapter 3 of the.2008 edition);
---Added 3.6kV, 7.2kV, 27kV, 30kV, 33kV and 38kV six rated voltage levels, delete the rated voltage
36kV (see 5.2, 4.1 of the.2008 edition);
---The rated insulation level corresponding to the above six rated voltages has been added, and the insulation level value "between fractures" has been deleted (see 5.3,.2008
Version 4.2);
---Relevant requirements on temperature rise have been deleted (see 4.4.2 of the.2008 edition);
--- The 2s rated short-circuit duration standard value is deleted, and 1s can be selected instead (see 5.8, 4.7 of the.2008 edition);
---Added the requirement of "Rated pressure of compressed air source for controllable pressure system" (see 5.11);
--- Set the rated short-circuit breaking current according to "Rated system source short-circuit breaking current", "Rated generator source short-circuit breaking current", and "Rated single-phase
"Earth fault breaking current" shall be specified separately (see 5.101, 4.101 of the.2008 edition);
---Modified the TRV parameters of the system source failure (Table 2), the TRV parameters of the generator source failure (Table 3), and the switching of the load current
TRV parameters (table 4) and TRV parameters for out-of-step current switching (table 5) (see 5.105.2, table 2~table 5 in the.2008 edition);
--- Deleted the capacitance current switching capacity rating requirements (see 4.107 in the.2008 edition);
--- Deleted the requirement for the rated value of the excitation current switching capacity (see 4.108 in the.2008 edition);
--- Amend "operations that do not rely on manpower" to "operations that do not rely on locks (operations that do not rely on manpower or power)" (see 6.7,
5.7 in the.2008 edition);
---Added "manually operated driver" (see 6.8);
---Added the relevant regulations for multiple releases, the action limits of the releases and the power consumption of the releases (see 6.9);
---Adjusted the circuit breaker nameplate parameters (see 6.11.1, 5.10 of the.2008 edition);
---Added the requirements for the nameplate of accessories (see 6.11.101);
---Added the nameplate requirements after the alternator circuit breaker (see 6.11.102);
---Added the requirements for X-ray emission (see 6.20);
---Added corrosion requirements (see 6.21);
--- The requirements for parallel resistors and capacitors have been deleted (see 5.105 in the.2008 edition);
--- Adjusted the list of type test items (see 7.1.1, 6.2.2 of the.2008 edition);
---Added the type test requirements for new products, transfer to factory production, etc., and required that "normally produced products should be carried out every eight years
Mechanical test at room temperature and basic short-circuit test method 1.Tests of other items may also be tested when necessary" (see 7.1.2);
--- Delete the grouping of type test (see 6.1.1 of the.2008 edition);
---Added a moisture test on outdoor generator circuit breakers that only require insulation to be exposed to outdoor conditions (see 7.2.6.1);
--- Modify the artificial pollution test of outdoor insulation from "not applicable" to "applicable" (see 7.2.8, 6.2.8 of the.2008 edition);
---Modify the main circuit test current value during the loop resistance measurement to a value between 100A and the rated value (see 7.4,.2008 edition
6.4);
--- Deleted "Measurement of temperature and temperature rise", "Ambient air temperature", "Auxiliary and control equipment temperature rise test" and "Solution of temperature rise test"
Interpretation" (see the.2008 version of 6.5.3, 6.5.4, 6.5.5, 6.5.6);
---Added "test current and duration", "temperature measurement during the test" and "criteria for passing the test" (see 7.5.3, 7.5.4,
7.5.5);
--- Deleted "the performance of the generator circuit breaker in the test" (see 6.6.3 of the.2008 edition);
---Additional tests for auxiliary and control circuits (see 7.10);
---Added the X-ray test procedure of the vacuum interrupter (see 7.11);
---Specify the mechanical life of infrequently operated generator circuit breakers as M1 class, and set the mechanical life of frequently operated generator circuit breakers
The life is specified as M2 level, and 10,000 mechanical life files have been deleted (see 7.101.2, 6.101.1.2 in the.2008 edition);
---Added the mechanical test at low temperature and high temperature (see 7.101.3);
---Modified the test procedures and limit provisions of the noise level test (see 7.101.4, 6.101.2 in the.2008 edition);
---Added humidity test (see 7.101.5);
--- Deleted the excitation current opening and closing test (see 6.109 in the.2008 edition);
---Added the electrical life test (see 7.107);
--- Deleted the pressure test of the shell (see 7.102 in the.2008 edition);
--- Deleted the selection guide for capacitive current switching (see 8.3.8 of the.2008 edition);
--- Deleted the selection guide for the opening and closing of the excitation current (see 8.3.10 of the.2008 edition);
---Added the general inspection and circuit inspection requirements of the handover test (see 11.3.102);
--- Increased the product's environmental impact (see Chapter 13);
---Appendix B (normative) application of mechanical characteristics and related requirements have been added (see Appendix B);
--- Tolerances of test parameters in Appendix E (normative) type test have been added (see Appendix E);
---Added Appendix F (normative) type test records and reports (see Appendix F);
---Added Appendix G (normative) humidity test procedures (see Appendix G).
This document uses the redrafting method to modify and adopt IEC /IEEE62271-37-013.2015 "High-voltage switchgear and control equipment
Part 37-013.Alternator Circuit Breaker.
Compared with IEC /IEEE62271-37-013.2015, this document has many adjustments in structure.
Comparison table of IEC /IEEE62271-37-013.2015 comparative chapter numbers.
The technical differences between this document and IEC /IEEE62271-37-013.2015 and the reasons are as follows.
---Modify the applicable system voltage range from 1kV~38kV to 3kV~38kV, delete the relevant information of rated frequency 60Hz
Capacity (except for 50Hz and 60Hz common content and 60Hz content involved in the appendix) added factory branch circuit interruption circuit
The standard applicability of the generator increases the referability of the circuit breaker directly connected to the generator (see Chapter 1).
---Regarding normative reference documents, this document has made adjustments with technical differences to adapt to my country's technical conditions and adjustments.
The situation is collectively reflected in Chapter 2 "Normative Reference Documents", and the specific adjustments are as follows.
● Replace IEC 62271-100.2008/AMD1.2012 with GB/T 1984-2014 which is modified to adopt international standards;
● Replace IEC 60296.2012 with GB 2536, which is modified to adopt international standards;
● Replace IEC 60050-441.1984 with GB/T 2900.20-2016 modified to adopt international standards;
● Replace IEC 62271-101.2012 with GB/T 4473-2018 which is modified to adopt international standards;
● Replace IEC 60480.2004 with GB/T 8905 modified to adopt international standards;
● Replace IEC 62271-1.2007/AMD1.2011 with GB/T 11022-2020 which is modified to adopt international standards;
● Replace IEC 60060-1.2010 with GB/T 16927.1 which is modified to adopt international standards;
● Replace IEC /IEEE62271-37-082.2012 with GB/T 33981 modified to adopt international standards;
● Added GB/T 762, GB/T 8349, GB/T 11023, GB/T 12022;
● Removed IEC 60529.1989/AMD1.1999/AMD2.2013, IEC 61180-1, IEC TR62271-306.
2012, IEEEStdC37.011TM-2011, IEEEStdC37.23TM-2003, IEEEStdC37.59TM-2007,
IEC 62262.2002.
---Deleted some common electrical
Gas terms and definitions, such as "neutral point effective grounding", "contact distance", etc. (see IEC /IEEE62271-37-013.2015
Chapter 3).
--- Deleted the opening operation diagram with closing resistance and the closing-opening cycle diagram (see IEC /IEEE62271-37-013.2015, Figure 4,
Figure 5).
---Modify the normal and special conditions of use to GB/T 11022-2020 Chapter 4 applies (see Chapter 4,
Chapter 2 of IEC /IEEE62271-37-013.2015).
---The rated voltage value is specified (see 5.2, 4.1 of IEC /IEEE62271-37-013.2015).
---The rated voltage is changed from the interval to the specific value, and the rated insulation level is modified to be consistent with GB/T 11022-2020 Table 2
(See 5.3, 4.2 and 4.2.101 of IEC /IEEE62271-37-013.2015).
---The rated frequency of 60Hz is deleted (see 4.3 of IEC /IEEE62271-37-013.2015).
--- Modify the rated current to the rated continuous current, remove the relevant regulations on temperature rise, and add the "generator circuit breaker in daily operation
The temperature of accessible operating parts should not exceed 50°C" requirements (see 5.5, 4.4 of IEC /IEEE62271-37-013.2015).
---The minimum value of the rated short-circuit duration should be 1s and 1s can be selected (see 5.8, IEC /IEEE62271-37-013.2015
4.7).
--- Amend the provisions in the rated supply voltage of the closing and opening devices and auxiliary and control circuits to 5.9 of GB/T 11022-2020
Applicable (see 5.9, 4.8 of IEC /IEEE62271-37-013.2015).
--- Deleted the different requirements for short-circuit breaking current breaking capacity under different voltages (see IEC /IEEE62271-37-013.2015
4.101.2.1).
---Modify the standard DC time constant from 133ms to 150ms (see 5.101.2.3, IEC /IEEE62271-37-013.2015
4.101.2.3).
--- Deleted the different requirements for short-circuit breaking current breaking capacity under different voltages (see IEC /IEEE62271-37-013.2015
4.101.3.1).
--- Deleted the requirement that the rated short-circuit making current is applicable to both 50Hz and 60Hz (see IEC /IEEE62271-37-013.
4.102 of.2015).
--- Modify the time delay in Table 2, Table 3, Table 4, and Table 5 to be equal to 1 μs to not greater than 1 μs (see 5.105.2, IEC /IEEE62271-
37-013.2015 4.105.2).
--- Increase the number of M1 generator circuit breaker operation requirements from 1000 to.2000, and operate the M2 generator circuit breaker
The frequency requirement has been increased from 3000 to 5000 (see 5.108, 4.108 of IEC /IEEE62271-37-013.2015).
--- Amend "operations that do not rely on manpower or power (non-locking operations)" to "do not rely on operations that do not rely on non-locking operations (do not rely on manpower or
Power operation)” (see 6.7, IEC /IEEE62271-37-013.2015, 5.7).
---Added "manually operated driver" (see 6.8).
--- Change the minimum power supply voltage for parallel release action from "20%" to "30%" (see 6.9.102, IEC /IEEE62271-37-
013.5.8.102 of.2015).
--- Deleted the nameplate requirements for the resistance value of each phase in parallel with the arc extinguishing chamber and the number of the manual in Table 6 (see IEC /IEEE62271-
37-013.5.10 of.2015).
--- Deleted the nameplate when changing the generator circuit breaker, see the description of IEEE Std C37.59TM-2007 guideline (see
5.10.102 of IEC /IEEE62271-37-013.2015).
--- The relevant requirements in the protection level of the enclosure have been deleted, and 6.14 of GB/T 11022-2020 is applicable (see IEC /IEEE62271-
37-013.5.13 of.2015).
---Added "electric life test" as a mandatory type test item (see 7.1.1).
---Added the type test requirements for new products, transfer to factory production, etc., and required that "normally produced products should be carried out every eight years
Mechanical test at room temperature and basic short-circuit test method 1.Tests of other items may also be tested when necessary" (see 7.1.2).
--- Deleted the "test grouping" requirement (see IEC /IEEE62271-37-013.2015, 6.1.1).
---Deleted the requirements for the description of the power frequency voltage test carried out to simulate the loss of voltage condition (see IEC /IEEE62271-37-013.
6.2.3 of.2015).
--- Amend the relevant requirements in the loop resistance measurement to GB/T 11022-2020 7.4 applicable (see 7.4,
6.4 of IEC /IEEE62271-37-013.2015).
--- Deleted "Measurement of temperature and temperature rise", "Ambient air temperature", "Auxiliary and control equipment temperature rise test" and "Solution of temperature rise test"
Interpretation” (see 6.5.3, 6.5.4, 6.5.5, 6.5.6 of IEC /IEEE62271-37-013.2015).
---Added "test current and duration", "temperature measurement during the test" and "criteria for passing the test" (see 7.5.3, 7.5.4,
7.5.5).
--- Deleted "the performance of generator circuit breakers in the test" (see IEC /IEEE62271-37-013.2015, 6.6.3).
--- Deleted "Electrical continuity test of grounded metal parts" (see 6.10.3 of IEC /IEEE62271-37-013.2015).
--- Change the insulation test of auxiliary and control circuit from GB/T 11022-2020 "not applicable" to "applicable" (see 7.10.5,
6.10.6 of IEC /IEEE62271-37-013.2015).
--- Added humidity test (see 7.101.5).
---The test requirements of the alternative operating mechanism listed item b) is modified to test method 1, and the machine under the longest arc time is required to be estimated.
Mechanical characteristics (see 7.102.7, 6.102.7 of IEC /IEEE62271-37-013.2015).
---Added "Visual inspection is usually sufficient to verify the insulation performance. If in doubt, the state inspection test in accordance with 7.2.11 is sufficient to verify
Its insulation properties. "And in column a) "After the generator circuit breaker is in a test mode, although its short-circuit breaking and closing performance
It may drop, but it should still be able to open and close its rated current under the rated voltage, and will be used as the voltage for status inspection
The test is modified after each test mode to test mode 1 (see 7.102.9.1).
---Modified Table 11 and Table 12 in accordance with the test parameters of GB/T 1984-2014 (see 7.102.10.3.3, IEC /IEEE62271-
37-013.2015 6.102.10.3.3).
--- Deleted the TRV test parameters for 60Hz systems (see Table 13 and Table 15 of IEC /IEEE62271-37-013.2015).
--- Modify the description of t in Table 15 and Table 16, from 0.25s to not less than 0.1s (see 7.105.12.4,
6.105.12.4 of IEC /IEEE62271-37-013.2015).
---Added the relevant provisions of the electrical life test (see 7.107).
--- Deleted the content of excitation switching current and capacitive switching current in the selection guide (see IEC /IEEE62271-37-013.2015
8.103.10 and 8.103.11).
---Added the "number of poles", "first open pole coefficient", "breaking time", "electric life characteristics" and "exceeding standard" in the characteristics required by generator circuit breakers.
Standard type test, factory test and handover test" requirements (see 10.2).
---Added "Information provided with bidding documents" (see 10.3).
---Modify the conditions of transportation, storage and installation to 11.2 of GB/T 11022-2020 applicable (see 11.2,
10.1 of IEC /IEEE62271-37-013.2015).
---Modify the installation to GB/T 11022-2020 11.3 applicable (see 11.3, IEC /IEEE62271-37-013.2015
10.2).
---Change the "verification of alarm function" to "measurement to be carried out" and stipulate the relevant measurement
Quantity item (see 11.3.102.5.1.2, 10.2.102.5.1.2 of IEC /IEEE62271-37-013.2015).
---Added the "Reset value of opening lock" and "Reset value of closing lock" in the column item a) of the pressure characteristic measurement of the operating fluid.
Item b) "Operation value of closing and blocking" and "Operating value of opening and blocking" measurement requirements (see 11.3.102.5.2.2).
---Relevant requirements for operation have been modified to be applicable to 11.4 of GB/T 11022-2020 (see 11.4, IEC /IEEE62271-37-013.
10.3 in.2015).
---Relevant maintenance requirements have been modified to be applicable to 11.5 of GB/T 11022-2020 (see 11.5, IEC /IEEE62271-37-013.
10.4 in.2015).
---Modified the safety-related requirements to be applicable to Chapter 12 of GB/T 11022-2020 (see Chapter 12, IEC /IEEE62271-37-
013.2015 Chapter 11).
---Relevant requirements for the impact of products on the environment have been modified to be applicable to Chapter 13 of GB/T 11022-2020 (see Chapter 13,
Chapter 12 of IEC /IEEE62271-37-013.2015).
---Added Appendix G (normative) humidity test procedures (see Appendix G).
The following editorial changes have been made to this document.
---In order to be consistent with my country's technical standard system, the standard name was revised to "High-voltage AC Generator Circuit Breaker";
--- Deleted Note 2 in the definition of "opening time" "For generator circuit breakers equipped with multiple breaking units per pole, all poles will be contacted by arc
The head separation time refers to the time when the first unit contact of the last pole is separated" (see IEC /IEEE62271-37-013.2015
3.7.126);
--- Deleted the note that "rated frequency can also be called rated power frequency" (see 4.3 of IEC /IEEE62271-37-013.2015);
---The note of R10 number system is deleted (see 4.101.2.2 of IEC /IEEE62271-37-013.2015);
--- Deleted the note "out-of-step switching and breaking current is also called out-of-step switching current" (see IEC /IEEE62271-37-013.2015
4.104);
--- Delete Note 2 and Note 3 in Table 6 (see 5.10 of IEC /IEEE62271-37-013.2015);
---Deleted the two legends of "generator circuit breaker housing" and "generator circuit breaker arc chamber cavity" in Figure 12 (see
Table 14 of IEC /IEEE62271-37-013.2015);
--- Added note 2 "According to b), the verification test carried out at one frequency (50Hz or 60Hz) is sufficient" (see 7.102.7);
---Merge similar items (see 11.3.102.3 and 11.3.102.4, 10.2.102.3 and 10.2.102.3 of IEC /IEEE62271-37-013.2015
10.2.102.4);
--- Deleted the empty appendix C and informative appendix G in IEC /IEEE62271-37-013.2015.
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National High Voltage Switchgear Standardization Technical Committee (SAC/TC65).
Drafting organizations of this document. Xi'an Xidian Switch Electric Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., Xi'an Xidian Electric
Research Institute Co., Ltd., China Electric Power Research Institute Co., Ltd., Schneider Electric (China) Co., Ltd., Tianshui Great Wall Switch Factory
Group Co., Ltd., Shanghai Electric Transmission and Distribution Test Center Co., Ltd., Cooper (Ningbo) Electric Co., Ltd., Shaanxi Shanrui Electric Co., Ltd.,
Schneider (Shaanxi) Baoguang Electric Appliance Co., Ltd., Schneider Electric (Xiamen) Switchgear Co., Ltd., General Electric High Voltage Switchgear (Su
State) Co., Ltd., Xiamen ABB Switch Co., Ltd., Siemens Medium Voltage Switch Technology (Wuxi) Co., Ltd., Siemens (China) Co., Ltd.
Shanghai Branch, New Northeast Electric Group High Voltage Switch Co., Ltd., Eaton Power Equipment Co., Ltd., Eaton Power Equipment Co., Ltd. Suzhou
Branch, Eaton Electric Co., Ltd., China Southern Power Grid Co., Ltd. EHV Transmission Company, Pinggao Group Co., Ltd., Shandong Taikai
Vacuum Switch Co., Ltd., Shandong Taikai Electrical Switch Co., Ltd., China Power Construction Group Northwest Survey and Design Research Institute Co., Ltd., China Power
Power Engineering Consulting Group Northwest Electric Power Design Institute Co., Ltd., Beijing Beikai Electric Co., Ltd., Beijing BOE Vacuum Electric Co., Ltd.
Company, Beijing Shuangjie Electric Co., Ltd., Chengdu Xuguang Electronics Co., Ltd., Toshiba Baiyun Vacuum Switch Tube (Jinzhou) Co., Ltd.,
Guangzhou Power Supply Bureau Co., Ltd., Guodian Bona (Beijing) Power Equipment Co., Ltd., State Grid Jiangsu Electric Power Research Institute, Hangzhou
Baimeng Intelligent Switch Co., Ltd., Henan Huasheng Longyuan Electric Co., Ltd., Henan Senyuan Electric Co., Ltd., State Grid Shaanxi Electric Power Company
Xi’an Power Supply Company, Henan High Voltage Electrical Apparatus Research Institute Co., Ltd., Jiangsu Daquan High Voltage Switch Co., Ltd., Jiangsu Nanrui Pawel Electric
Co., Ltd., Liaoning Dongda Electric Power Technology Co., Ltd., Qiqiqi Electric Technology Co., Ltd., Shanghai Anyiji Enterprise Development Co., Ltd., Shanghai
Huayin Switch Factory Co., Ltd., Shaanxi Baoguang Vacuum Appliance Co., Ltd., Shaanxi Sirui New Material Co., Ltd., Shenzhen Guanghui Electric
Industrial Co., Ltd., Xiamen Hongfa Electric Appliance Co., Ltd., Xi’an Alfa Switch Co., Ltd., Xi’an Senyuan Switch Technology Research Co., Ltd.
Co., Ltd., Xidian Baoji Electric Co., Ltd., Yihe Electric Group Co., Ltd., Zhejiang Switch Factory Co., Ltd., Shaanxi Baoguang Group Co., Ltd.
company.
The main drafters of this document. Ma Zhanfeng, Lu Yuanjing, Zhao Pei, Yan Xu, Wang Haibin, Tian Enwen, Li Gang, Zhe Yongxiang, Liu Haojun, Sun Mei,
Yuan Fuxing, Feng Wujun, Zhang Zhenqian, Cheng Li, Zhang Wenbing, Li Jianhua, Lei Xiaoqiang, Zhang Wei, Kong Xiangjun, Shen Zhongwei, Liu Chengxue, Yang He, Li Liuling,
Han Haiyang, Wu Bingchang, Liu Yingbin, Xu Gang, Liu Jiancheng, Fei Guangcheng, Yu Haiyang, Chen Jin, Gao Ning, Ye Liping, Bao Lihua, Li Yucheng, Li Weiguo,
Wang Xiangke, Fei Xiang, Qin Chengwei, Wang Xinjun, Kang Benxian, Li Honglu, Huo Peng, Geng Xuli, Meng Jia, Kong Guowei, Tian Zhiqiang, Zhang Jialin, Liu Junxiang,
Gao Guoxian, Yang Jinggang, Liu Yuan, Hu Qunrong, Tang Jinping, Liu Yang, Tian Xinyu, Xing Wenqi, Cai Ping, Wan Jiafei, Yao Huailin, Qu Jiaxing, Chang Yubin,
Zhou Lijuan, Wu Chunhui, Jin Xinglong, Qian Yuming, Wang Quan, Wang Xiaojun, He Wei, He Yue, Li Dongming, Qian Yupeng, Liu Chunfeng, Kong Xiangchong, Su Weimin,
An Wenyuan.
The previous releases of this document and the documents it replaced are as follows.
--- First published as GB/T 14824-1993 in.1993; first revised in.2008;
---This is the second revision.
High voltage alternator circuit breaker
1 Scope
This document specifies that it is designed to be installed indoors or outdoors and run in a system with a rated frequency of 50Hz and a nominal voltage of 3kV~38kV
The operating conditions, ratings, design and structure, type test, factory test of the three-phase generator circuit breaker (hereinafter referred to as the generator circuit breaker)
Inspection and so on.
This document applies to generator circuit breakers installed between the generator and the step-up transformer. This document applies to the rated capacity greater than or equal to
Generator circuit breakers equipped with 10MVA generators and transformers, and the generator circuit rated capacity is less than 10MVA, installed in the pump
Circuit breakers directly connected to generators under water storage power stations and other operating conditions are considered special applications, and their requirements do not fully cover
In this document.
This document also applies to the operating mechanism of the generator circuit breaker and its auxiliary equipment.
This document also applies to circuit breakers in branch circuits for factory use.
Note. The circuit breaker directly connected to the generator can also refer to this document.
2 Normative references
The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 762 standard current rating (GB/T 762-2002, eqvIEC 60059.1999)
GB/T 1984-2014 high voltage AC circuit breaker (IEC 62271-100.2008, MOD)
GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches (GB 2536-2011, IEC 60296.
2003, MOD)
GB/T 2900.20-2016 Electrical terminology high-voltage switchgear and control equipment [IEC 60050(441).1984,MOD]
GB/T 4473-2018 Synthetic test of high voltage AC circuit breaker (IEC 62271-101.2017, MOD)
GB/T 8349 Metal Enclosed Bus
GB/T 8905 Gas management and detection guidelines in sulphur hexafluoride electrical equipment (GB/T 8905-2012, IEC 60480.2004,
MOD)
GB/T 11022-2020 Common technical requirements for high-voltage AC switchgear and control equipment standards (IEC 62271-1.2017,
MOD)
GB/T 11023 High-voltage switchgear sulfur hexafluoride gas tightness test method
GB/T 12022 Industrial sulfur hexafluoride
GB/T 16927.1 High Voltage Test Technology Part 1.General Definition and Test Requirements (GB/T 16927.1-2011,
IEC 60060-1.2010, MOD)
GB/T 33981 Standard Regulations for Sound Pressure Level Measurement of High Voltage AC Circuit Breakers (GB/T 33981-2017, IEC /IEEE62271-37-
082.2012, MOD)
3 Terms and definitions
The following terms and definitions defined in GB/T 2900.20-2016 and GB/T 11022-2020 apply to this document.
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