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GB 16926-2009: [GB/T 16926-2009] High-voltage alternating current switch-fuse combinations
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Basic data | Standard ID | GB 16926-2009 (GB16926-2009) | | Description (Translated English) | [GB/T 16926-2009] High-voltage alternating current switch-fuse combinations | | Sector / Industry | National Standard | | Classification of Chinese Standard | K43 | | Classification of International Standard | 29.120.40 | | Word Count Estimation | 40,438 | | Date of Issue | 2009-03-19 | | Date of Implementation | 2009-12-01 | | Older Standard (superseded by this standard) | GB 16926-1997 | | Quoted Standard | GB/T 15166.6-2008; GB 15166.2-2008; GB 1984-2003; GB 1985-2004; GB/T 2900.20; GB 3804-2004; GB/T 15166.1 | | Adopted Standard | IEC 62271-105-2002, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 3, 2009 (No. 143 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard applies to utility and industrial power distribution systems used in load isolation switch load switch includes limiting fuses functionality with a combination of three pole units, designed to possess: Breaking capacity: Rated recovery voltage, up to and including breaking rated short-circuit breaking current of any current, closing capacity | GB 16926-2009: [GB/T 16926-2009] High-voltage alternating current switch-fuse combinations---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 switch-fuse combinations
ICS 29.120.40
K43
National Standards of People's Republic of China
Replacing GB 16926-1997
High voltage AC load switch - fuse combinations
(IEC 62271-105.2002, High-voltageswitchgearand
controlgear-Part 105. Alternatingcurrentswitch-fuse
combinations, MOD)
Posted 2009-03-19
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Overview 1
2 normal and 2 special conditions of use
3 Terms and definitions 2
4 6 ratings
5 design and structure 7
6 Type Test 9
7 factory test 17
8 load switch - fuse combinations 17 Selection Guide
9 with the inquiry data book, tender and order provided with 18
10 transport, storage, installation, operation and maintenance of Rule 19
11 security 19
Appendix A (informative) fuse, load switch and transformer with 26 examples
Appendix B (normative) Determination of Transfer current program 27
Foreword
All the technical contents of this standard is mandatory.
This revised standard adopts IEC 62271-105.2002 "high-voltage switchgear and control equipment Part 105. AC load switch - fuse
Electrical breaker combination. "
This standard and IEC 62271-105. The main difference in 2002.
--- Scope. According to the actual situation of China's power grid, removing the IEC 62271-105 in the nominal frequency of 60Hz related content;
According to China's industry division of labor, the minimum voltage applied to the program by the IEC 62271-105 of 1000V to 3000V;
--- Rated voltage. Removed and the rated voltage value independent of the grid, listed in GB/T 11022 (or GB 156), in accordance with
The voltage is given;
--- GB 3804 in accordance with the load switch to test, and these tests may be different from another in accordance with this standard appliances in combination
Test conducted on the combination of electrical appliances;
--- According to GB 15166.2 Dui fuse test;
--- In accordance with the standard combination of electrical test;
--- Annex A (informative). To facilitate the use of this standard will be calculated in the case of the relevant parameters have been modified (such as transformers
Rated voltage generated by the 11kV to 10kV, etc.);
--- Remove the fuse - load switch combined electrical apparatus of the relevant provisions;
--- Nameplate increase the product characteristic parameters, such as the transfer of the rated current.
This standard replaces GB 16926-1997 "AC high voltage load switch - fuse combinations."
The main difference between this standard and GB 16926-1997 are.
Differences --- standard layout on. In conformity with the GB/T 1.1, try to be consistent with IEC 62271-105;
--- 6.101 in the GB 16926-1997 test method requires 3 as the requirements of the design and construction (5.102);
--- Appendix B (normative). To make the transfer current is determined more accurately, according to actual time - current characteristics as a function of the slope of the current
Number, a method using an iterative method to calculate the transfer current.
This standard should be used with GB/T 11022, unless otherwise specified in the standard, this standard reference GB/T 11022. To simplify phase
With the requirements of expression, this standard reg number and GB/T 11022 same. Terms of reference for supplementary new heading in the same from 101
Start number.
Appendix B of this standard is a normative appendix, Appendix A is informative appendix.
The standard proposed by China Electrical Equipment Industrial Association.
This standard by the national high-voltage switch equipment Standardization Technical Committee (SAC/TC65) centralized.
This standard was drafted. Xi'an High Voltage Apparatus Research Institute, China Electric Power Research Institute, Institute of high-voltage switches, Chongqing Bosen Electric Co.
The company, Shanghai days Ling Switch Factory Co., Ltd., high-voltage electrical machinery industry product quality inspection center (Shenyang), Ningbo Tianan Group Co., Ltd.,
Wenzhou New Electric Co., Ltd., Guangdong Fan Electric Equipment Manufacturing Co., Ltd. Jinhua power switch, Huayi Electric Group Co.,
The company, Schneider (Beijing) Medium Voltage Electric Co., Ltd., Guangzhou Baiyun Electric Equipment Co., Ltd., ABB Xiamen Switchgear Co., Ltd., Zhejiang
Jiang Switch Factory Co., Ltd., Tianjin Power Equipment Manufacturing Co., Ltd. three sources.
The main drafters of this standard. Tian Enwen, Xing Na
Drafters of this standard. Tian Enwen, Xing Na, Wang Ping, Pingwu Jun, Li Xiangyang, Wang farming, horsepower, Zhouqiao Ping, Yang Yingjie, Zhupei Long, Zhang Weiming,
Wu Jisong, Lu-an, the new Stella, wish keep spring, Lei Xiaoqiang, Yangcheng Mao, Yangxin Jie, Yu Huizhong, Gu Deming.
This standard replaces the standards previously issued as follows.
--- GB 16926-1997.
High voltage AC load switch - fuse combinations
1 Overview
1.1 Scope
This standard applies to utility and industrial power distribution systems used in load switch includes a switch disconnectors and current-limiting fuses combination of features
Three-pole unit, designed to have.
--- Switching capacity. rated recovery voltage, up to and including breaking rated short-circuit breaking current of any current;
--- Closing capacity. at rated voltage Closing rated short circuit breaking current applies.
This standard does not apply to the motor circuit fuse - breaker, fuse - contactor combinations, or contains a single capacitor bank
Load switch combined electrical apparatus.
This standard, a "combination" means a combination of each electrical element forming a functional component. A formula for setting the load switch
And to jointly shape a formula to determine the fuse of a type of combination units.
In fact, different types of load switch fuse combination and one can give a series of combination units with different characteristics, in particular,
The rated current. Furthermore, for maintenance purposes, the user should know and be able to type a load switch fuse combination without
Impact on the standard of compliance, but also clear the corresponding characteristic combination of such appliances.
Load switch - fuse combination by model number and the range of options is determined by the manufacturer of fuses (the so-called "reference
Fuse List ") to determine. Conforming to this standard a given combination of electrical means using any alternative electrical fuses for each combination
Device can prove compliance with this standard.
Load combination of electrical fuses is to increase the short-circuit rating, and short-circuit ratings than when alone with a load switch. Secure
Loaded striker, both for the operation of three-phase rely fuse load switch automatically separated, but also in the fault current is greater than the minimum melting current, small
To fuse the correct operation of the minimum breaking current. In addition to the fuse striker, the combination of electrical overcurrent release can be installed in parallel or off
Buckle device.
Note 1. This standard, when the text does not cause the total semantic confusion, "fuse" could refer to the fuse or the fuse.
Note 2. This standard, when the text does not cause semantic confusion, "load switch - fuse combinations" and "combinations" refers to "high voltage AC load opening
Off - fuse combinations. "
This standard applies to the frequency of 50Hz, and above the nominal voltage 3kV, 35kV and below the three-phase AC system, indoors or outdoors
The combination of electrical installation.
Fuses should comply with GB 15166.2.
Load switch, including their specific operating mechanism, taking into account the effect of limiting fuses, in addition to short-term and short-circuit current requirements, should
In line with GB 3804.
Become an integral part of the combination of electrical grounding switch should comply with GB 1985.
1.2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 11022 1.2 applies, and make the following addition.
GB 1984-2003 high voltage AC circuit breaker (IEC 62271-100.2001, MOD)
GB 1985-2004 high-voltage AC disconnectors and earthing switches (IEC 62271-102.2002, MOD)
GB/T 2900.20 Electrotechnical terminology voltage switchgear
GB 3804-2004 3.6kV ~ 40.5kV high voltage AC load switch (IEC 60265-1.1998, MOD)
GB/T 15166.1 AC high voltage fuses term
GB 15166.2-2008 AC high voltage fuses - Part 2. limiting fuses
GB/T 15166.6-2008 AC high voltage fuses - Part 6. high voltage fuses for transformer circuit the fuse selection
Guidelines
2 Normal and special service conditions
GB/T 11022 Chapter 2 apply.
3 Terms and Definitions
To facilitate the use of this standard, GB/T 2900.20, GB/T 11022 and GB/T 15166.1 of the following terms and definitions
Be applicable.
For ease of use, some of the terms and definitions restated here.
3.1
Generic term
No specific definition.
3.2
Assembly
No specific definition.
3.3
Assembly of parts
No specific definition.
3.4
Switch means
3.4.101
A composition of electrical, which includes a set of three-pole load switch and with a striker of three fuses, any impact the action will lead
From all three pole load switch automatic gates.
3.4.102
Fuse combinations - fuse load switch is not installed.
3.4.103
Within the composite element, there is a pole or multi-pole fuse load switch series.
3.4.104
By a fuse or vehicle fuse with a fuse element constituting the movable contact load switch.
3.4.105
In the open position, to meet the isolation switch isolation requirements specified in a load switch.
[GB 3804-2004 of 4.4.102]
3.4.106
A composition of electrical, automatic gates its load switch triggered by overcurrent release or shunt release.
3.5
Member of the switching device
3.5.101
[GB/T 2900.20 4.29]
3.5.102
[GB/T 2900.20 4.30]
3.5.103
[GB/T 2900.20 4.38]
3.6
operating
3.6.1
[GB/T 11022 3.6.1]
3.6.2
[GB/T 11022 3.6.2]
3.7
Characteristic parameters
3.7.101
[GB/T 2900.20 6.6]
3.7.102
[GB/T 2900.20 6.7]
3.7.103
[GB/T 2900.20 6.8]
3.7.104
[GB/T 2900.20 6.17]
3.7.105
[GB/T 15166.1 3.4]
3.7.106
[GB/T 15166.1 3.9]
3.7.107
Under specified conditions, including terminals, including short-circuiting switch means making capacity.
[GB 3804-2004 of 4.7.115]
3.7.108
[GB/T 15166.1 3.5]
3.7.109
Symmetrical three-phase current value at the time of the fuse with the breaking load switching functions.
NOTE. greater than this value, the three-phase current is only breaking the fuse. This value is slightly smaller than the first pole breaking of the current by the fuse breaking, then the two-phase current from the load
Switch or fuse breaking, depending on the fuse time - current characteristic variation and load switch fuse triggered opening time.
3.7.110
Two kinds of overcurrent protection device time - current characteristics of the current value of the intersection.
3.7.111
The current depends on the load switch and fuse time - current characteristics of the intersection, which corresponds to.
a) The maximum open time and, if applicable, with external overcurrent relays or ground fault relay maximum operating time;
The minimum arcing time b) fuse.
Figure 12.
3.7.112
The current depends on the load switch and fuse time - current characteristics of the intersection corresponding to.
a) load switch triggered by the release of the minimum opening time, if applicable, plus 0.02s to represent external overcurrent relays or
The minimum operating time ground fault relay;
b) has a maximum current rating of the fuse maximum operating time.
3.7.113
When the current-limiting device is a fuse, the short-circuit current is limited.
3.7.114
[GB/T 2900.20 6.13]
3.7.115
[GB/T 2900.20 6.30]
3.7.116
TR Vp
[GB/T 2900.20 6.31]
3.7.117
[GB/T 2900.20 6.32]
3.7.118
[GB/T 2900.20 6.33]
3.7.119
Fuse all poles arcing time to time until the arcing contacts separate.
3.7.120
Opening time is defined as the release triggered by the following methods to determine the trip, and with the integrated load switch any delay device
They are adjusted to a setting value.
a) any form of auxiliary energy for the tripping load switch is in the open position release the closing moments of charging load switch
All the time the pole arc contact separation time interval between.
b) For the main circuit current (different from striker) to pass through without the aid of any auxiliary energy release load switch in the closing
When the load switch in the main circuit current position reaches the overcurrent release operation timing values to all poles arcing contact separation
The time interval between the moment.
3.7.121
It became the setting value load switch delay means any part of the provision is to its lowest setting release trigger opening time.
3.7.122
It became the setting value load switch delay means any part of a provision is at its maximum setting value release trigger opening time.
3.7.123
[GB/T 2900.20 6.54]
3.8
Fuses
3.8.1
For a given load switch - fuse combination base, fuse manufacturer to determine the list, and all of its corresponding open load
Off - fuse combinations comply with the current standards.
Note. The list can be updated. Type Test validity conditions are given in the extended 8.102 in.
3.8.2
[GB/T 15166.1 2.20]
3.8.3
[GB/T 15166.1 2.24]
3.8.4
[GB/T 15166.1 3.11]
3.8.5
[GB/T 15166.1 3.13]
3.8.6
[GB/T 15166.1 3.12]
3.8.7
[GB/T 15166.1 3.14]
3.8.8
[GB 15166.2 of 3.1.21]
4 RATINGS
GB/T 11022 Chapter 4 apply and supplemented as follows.
k) rated short-circuit breaking current;
l) Rated transient recovery voltage;
m) rated short-circuit current;
n) the impact of the operation of the combination of electrical rated transfer current;
o) a combination of electrical release operation rated transfer current.
GB/T 11022 4.1 apply.
4.2 Rated insulation level
GB/T 11022 4.2 apply.
GB/T 11022 4.3 apply.
4.4 rated current and temperature rise
GB/T 11022 4.4.1 applies, and following addition.
Rated current applied to the complete combination of electrical appliances by a combination of base and the composition of the selected fuse.
Rated current is not required to choose from the R10 series.
4.4.2 Temperature Rise
GB/T 11022 4.4.2 applies, if it comes to the fuse, see GB 15166.2.
4.5 Rated short time withstand current (I k)
GB/T 11022 4.5 NA.
GB/T 11022 4.6 NA.
GB/T 11022 4.7 NA.
4.8 closing and opening devices and auxiliary circuits of rated supply voltage (U Rao)
GB/T 11022 4.8 apply.
4.9 Rated supply frequency of closing and opening devices and auxiliary circuits
GB/T 11022 4.9 apply.
4.10 Operation with compressed air rated pressure
GB/T 11022 4.10 applies.
4.101 rated short-circuit breaking current
Rated short circuit breaking current refers to the conditions specified in this standard and performance, circuit power frequency recovery voltage corresponding to the combination of electrical
Rated voltage, transient recovery voltage is equal to the expected 4.102 specified rating, that can be a combination of electrical breaking the maximum prospective short circuit current.
Rated short circuit breaking current with an effective value of the alternating component.
Rated short circuit breaking current should be below R10 Series selected.
8kA; 10kA; 12.5kA; 16kA; 20kA; 25kA; 31.5kA; 40kA; 50kA; 63kA; 80kA; 100kA.
Note. It should be recognized that the series combination of electrical impedance, fast action fuse or load switch may cause one or both of the following effects.
a) short-circuit current is reduced to a value not significantly lower than the value of the above-described effect can be achieved;
b) Such fast action causes the short-circuit current waveform is deviated from its original waveform.
This is the use of the term "prospective current" reasons in assessing the breaking and closing performance.
4.102 rated transient recovery voltage
Rated short circuit breaking current (in line 4.101) related to the rated transient recovery voltage is a reference voltage, which is a combination appliances can
When breaking short-circuit fault circuit loop is expected to limit the transient recovery voltage.
Expected transient recovery voltage parameters, GB 15166.2 apply.
4.103 rated short-circuit current
Rated short-circuit current is measured under the conditions of use and performance requirements of this standard, the loop frequency voltage corresponding to the combination of electrical rating
Voltage electrical appliances capable of closing the combination of the maximum expected peak current. It should be rated short-circuit breaking current value of 2.5 times.
Note. See also Note 4.101.
Rated transfer current is the maximum rms combination of electrical load switch capable of breaking the transfer of current.
Rated transfer current is the maximum rms combination of electrical load switch capable of breaking the transfer of current.
5 Design and Structure
5.1 pairs of load switch - fuse combinations required liquid
GB/T 11022 5.1 apply.
5.2 pairs of load switch - fuse combination gas requirements
GB/T 11022 5.2 apply.
5.3 load switch - fuse combinations ground
GB/T 11022 5.3 apply.
5.4 Auxiliary Equipment
GB/T 11022 5.4 apply.
5.5 operated by power
GB/T 11022 5.5 apply.
5.6 storage operations
GB/T 11022 5.6 apply.
5.7 does not rely on human action
GB/T 11022 5.7 NA.
5.8 release operation
GB/T 11022 5.8 apply.
5.9 low pressure and high pressure locking device
GB/T 11022 5.9 apply.
5.10 Nameplate
GB/T 11022 5.10 apply and supplemented as follows.
Load switch - fuse combination plate should contain a table of contents.
Table 1 Nameplate content
Acronym Unit
Load switch -
Fuse combination
Electric
Actuator
Labeling requirements
condition
(1) (2) (3) (4) (5) (6)
Factory X Y
Not only with the combination of electrical
Integral and/or manufacturing
Different plant
Model X (Y)
Serial number X (Y)
Standard Number X
Rated voltage Ur kV X
Rated power frequency withstand voltage kV X
Rated lightning impulse withstand voltage Up kV X
Amps (with fuses) See reference list A X
Rated short-circuit breaking current kA X
Rated short-circuit current kA X
Rated transfer current Itransfer A X
Rated over current Ito A Y
Combination release operation
Electric
Closing and opening devices and auxiliary and
Rated supply voltage control loop
When applicable Ua V Y
Year of manufacture X
Temperature Class Y
Different. -5 ℃ indoor
-25 ℃ outdoors
X represents the identity value is mandatory.
Y represents the identity value is mandatory, but depending on the column (6) conditions.
Identity values (Y) represented is optional.
Note 1. Column (2) of the abbreviation can replace column (1) term. If column (1) The term "nominal" word may not appear on the nameplate.
Note 2. If the combination of electrical current is greater than the nominal handover rated transfer current, you can not mark the transfer of its rated current.
5.11 interlocks
GB/T 11022 5.11 applies.
5.12 position indicator
GB/T 11022 5.12 applies.
5.13 Enclosure rating
GB/T 11022 5.13 applies.
5.14 creepage distance
GB/T 11022 5.14 applies.
5.15 gases and vacuum sealed
GB/T 11022 5.15 applies.
5.16 seal liquid
GB/T 11022 5.16 applies.
5.17 Flammability
GB/T 11022 5.17 applies.
5.18 Electromagnetic compatibility (EMC)
GB/T 11022 5.18 applies.
5.101 linkage striker tripping and load switch between
Maximum, minimum energy and the striker with a given impactor type (medium or heavy) of the operation mode (spring or explosion) independent of the fuse
Impacted the linkage with the release load switch between the three-phase and single-phase load conditions should make the switch to operate reliably. Impactor
The requirements are given in GB 15166.2.
5.102 low overcurrent conditions (long fuse pre-arcing time conditions)
Load switch - fuse combinations shall be designed so that the combination of electrical appliances at low overcurrent conditions can be reliably work. This can be
Satisfy the following conditions to achieve.
a) load switch and fuse should satisfy the following 1), 2) or 3) one of.
1) triggered fuse load switch fuse opening time is shorter than specified in GB 15166.2 capable of withstanding the maximum arcing
time;
NOTE. GB 15166.2 introduced a new test to assess at long arcing time conditions (fuses) the longest arc withstand for at least
100ms.
2) If the manufacturer can prove that the fuse from the fuse rated short-circuit breaking current value in the combination of electrical fuses, etc.
All current efficiency minimum melting current value can be reliably operated (that is, the full range fuses), it is assumed that the load opening
Off - fuse combinations of load switch fuse triggered opening time is not relevant;
3) If you can prove that before the fuse striker heat release in the load switch fuse arcing breaking all less than I3
(In line with GB 15166.2 minimum fuse breaking current);
b) in accordance with the test showed 6.104 for temperature rise under these conditions will not damage the combination of electrical performance.
6 Type tests
GB/T 11022 Chapter 6 applies, and make the following additions.
6.1 Overview
Objective type test is to demonstrate load switch - fuse combination of electrical properties, actuator and linkage means.
Should be clear, for the combination of electrical load switch, in addition to short-time withstand current and short-circuit requirements, shall be made in accordance with GB 3804
As a separate element tested; in addition, the requirements of GB 15166.2 fuse shall be tested.
Type tests include.
--- Insulation test;
--- Temperature rise test;
--- Main loop resistance measurement;
--- Verify the degree of protection;
--- Tightness test;
--- Electromagnetic compatibility test;
--- Closing and breaking tests;
--- Tripping linkage test;
--- Fuses mechanical vibration test;
--- Having a long fuse pre-arcing time of the thermal test.
The combination of electrical components should be according to the corresponding standard Type-tested products.
Delivery of electrical test combinations should be fitted with an appropriate fuse, clean, new combination appliances.
Type test sample should be the final production of the product design and technical conditions conform to, the following cases, load switch - fuse combination
Electric type tests should be carried out.
a) a new trial and should be all the type tests;
b) the plant and off-site production of products, all type tests should be carried out;
c) When and affect product performance product design, process or production conditions and major changes in the materials used, should accordingly
Type test;
d) normal products every eight years should be a temperature rise test, the trip linkage test and closing and breaking tests;
e) do not often produce the product (discontinued more than three years), should produce again d) test prescribed;
f) for products or derived products should be related to the type of test, part of the pilot project can refer to the corresponding valid test report.
6.1.1 Test packet
GB/T 11022 6.1.1 apply.
6.1.2 confirm the test data
GB/T 11022 6.1.2 apply.
6.1.3 Type test data should be included in the report
GB/T 11022 6.1.3 apply.
6.2 Insulation Test
GB/T 11022 6.2 applies, and make the following addition.
GB/T 11022 6.2.9 (partial discharge test) substituted with the following.
Complete combination of electrical partial discharge test is not required. However, elements in this regard should meet their relevant standards.
6.3 Radio interference voltage (RI Vp) test
GB/T 11022 6.3 NA.
6.4 main circuit resistance measurements
GB/T 11022 6.4 applies, and make the following addition.
Negligible impedance conductive bar instead of the fuse and the resistance of the conductive bar should be recorded.
6.5 Temperature Rise Test
GB/T 11022 6.5 applies, and make the following addition.
Combination of electrical temperature rise test shall be provided with the base combination of electrical test reference list of all the rated current. However, in accordance with
The following provisions can reduce the number of tests.
As long as the following four criterion, by a combination of a base an...
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