GB/T 14824-2021High-voltage alternating-current generator circuit-breakers (English PDF)

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.