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GB/T 11024.1-2019Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V -- Part 1: General (English PDF)

标称电压1000V以上交流电力系统用并联电容器第1部分：总则

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 25, 2019

Implementation date

October 1, 2019

Scope

GB/T 11024.1-2019 is the English-translated version of 标称电压1000V以上交流电力系统用并联电容器第1部分：总则.

GB/T 11024.1-2019 is the Chinese standard "Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V -- Part 1: General". Its scope clause reads: This part of GB/T 11024 specifies the performance, test and determination of shunt capacitors for AC power systems with a nominal voltage above 1000V.

Amount, safety requirements, installation and operation guidelines. This section is applicable to AC power systems with a nominal voltage of 1000V or higher and a frequency of 15Hz~60Hz.

Power unit, capacitor unit and capacitor bank with improved power factor. This section also applies to capacitors intended for use in power filter circuits.

Additional definitions, requirements, and tests for AC filter capacitors Given in Appendix B. Additional requirements for capacitors with internal fuse protection and requirements for internal fuses are given in GB/T 11024.4-2019.

The requirements for capacitors with external fuse protection and the requirements for external fuses are given in Appendix C. This section does not apply to self-healing metallized dielectric capacitors.

This section also does not include the following capacitors. ---Power capacitors for induction heating devices [see GB/T 3984 (all parts)]; ---Series capacitors for power systems [see GB/T 6115 (all parts)]; ---Motor capacitors and the like [see GB/T 3667 (all parts)]; ---Coupling capacitors and capacitor dividers [see GB/T 19749 (all parts)]; ---Parallel capacitors for AC power systems with nominal voltages of 1000V and below [see GB/T 12747 (all parts) and GB/T 17886 (all parts)]; --- Small AC capacitors for fluorescent lamps and discharge lamps (see GB/T 18489 and GB/T 18504); ---Power electronic capacitors (see GB/T 17702); ---Capacitors for microwave ovens (see GB/T 18939.1); --- Capacitors for suppressing radio interference; --- A capacitor to be used under a DC voltage superimposed with an AC voltage.

Various accessories, such as insulators, switches, transformers, external fuses, etc., comply with the corresponding standards.

The purpose of this section is as follows. a) Describe the uniform rules for performance, rating and capacitor unit testing of capacitor units and capacitor banks; b) elaborate special safety rules; c) Provide installation and operation guidelines. Its clauses include scope and purpose.

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Document preview — GB/T 11024.1-2019

National Standard of the People's Republic of China

ICS: 31.060.70
Classification: K 42

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope and purpose
2 Normative references
3 Terms and Definitions
4 Conditions of use
4.1 Normal use conditions
4.2 Abnormal use conditions
5 Quality and test requirements
5.1 Overview
5.2 Test conditions
6 Test Category
6.1 Overview
6.2 Routine test
6.3 Type test
6.4 Acceptance test
6.5 Special test
7 Capacitance measurement (routine test)
7.1 Measurement procedure
7.2 Capacitance deviation
8 Capacitor loss tangent (tan delta) measurement (routine test)
8.1 Measurement procedure
8.2 Loss tangent requirement
9 Voltage test between terminals (routine test)
9.1 Overview
9.2 Exchange test
9.3 DC test
10 AC voltage test between terminal and housing (routine test)
11 Internal discharge device test (routine test)
12 Sealing test (routine test)
13 Thermal stability test (type test)
13.1 Overview
13.2 Measurement procedure
14 Capacitor loss tangent (tan delta) measurement at high temperature (type test)
14.1 Measurement Procedure
14.2 Requirements
15 Voltage test between terminal and housing (type test)
15.1 AC voltage test between terminal and housing
15.2 Lightning impulse voltage test between terminal and housing
16 Overvoltage test (type test)
16.1 Overview
16.2 Treatment of the test unit before the test
16.3 Test procedure
16.4 Acceptance criteria
16.5 Validity of the test
17 Short-circuit discharge test (type test)
18 insulation level
18.1 Standard insulation value
18.2 General requirements
18.3 Test between Capacitor Unit Terminal and Enclosure
18.4 Capacitors 16 in single-phase systems
19 Overload---Maximum allowable voltage
19.1 Long time voltage
19.2 Operating Overvoltage
20 Overload---Maximum allowable current
21 Safety requirements for discharge devices
22 Safety requirements for enclosure connections
23 Safety requirements for environmental protection
24 Other safety requirements
25 capacitor unit logo
25.1 Nameplate
25.2 Standardized connection symbols
25.3 Warning sign
26 capacitor bank logo
26.1 Instructions or nameplate
26.2 Warning Sign
27 Installation and Operation Guide
27.1 Overview
27.2 Selection of rated voltage
27.3 Operating temperature
27.4 Special conditions of use
27.5 Overvoltage
27.6 Overcurrent
27.7 Switch and protection device
27.8 Selection of insulation level
27.9 Selection of creepage distance and air gap
27.10 Capacitor connected to a system with an audio remote control
Appendix A (Normative) Preventive measures against PCB contamination of the environment
Appendix B (Normative) Additional definitions, requirements and tests for AC filter capacitors
Appendix D (informative) Calculation formula for capacitors and devices
Appendix E (informative) Capacitor group fuse protection and its unit arrangement
Appendix F (informative) Definition of component and capacitor case dimensions

1 Scope and purpose

This part of GB/T 11024 specifies the performance, test and determination of shunt capacitors for AC power systems with a nominal voltage above 1000V.

Amount, safety requirements, installation and operation guidelines.

This section is applicable to AC power systems with a nominal voltage of 1000V or higher and a frequency of 15Hz~60Hz.

Power unit, capacitor unit and capacitor bank with improved power factor.

This section also applies to capacitors intended for use in power filter circuits. Additional definitions, requirements, and tests for AC filter capacitors

Given in Appendix B.

Additional requirements for capacitors with internal fuse protection and requirements for internal fuses are given in GB/T 11024.4-2019.

The requirements for capacitors with external fuse protection and the requirements for external fuses are given in Appendix C.

This section does not apply to self-healing metallized dielectric capacitors.

This section also does not include the following capacitors.

---Power capacitors for induction heating devices [see GB/T 3984 (all parts)];

---Series capacitors for power systems [see GB/T 6115 (all parts)];

---Motor capacitors and the like [see GB/T 3667 (all parts)];

---Coupling capacitors and capacitor dividers [see GB/T 19749 (all parts)];

---Parallel capacitors for AC power systems with nominal voltages of 1000V and below [see GB/T 12747 (all parts) and

GB/T 17886 (all parts)];

--- Small AC capacitors for fluorescent lamps and discharge lamps (see GB/T 18489 and GB/T 18504);

---Power electronic capacitors (see GB/T 17702);

---Capacitors for microwave ovens (see GB/T 18939.1);

--- Capacitors for suppressing radio interference;

--- A capacitor to be used under a DC voltage superimposed with an AC voltage.

Various accessories, such as insulators, switches, transformers, external fuses, etc., comply with the corresponding standards.

The purpose of this section is as follows.

a) Describe the uniform rules for performance, rating and capacitor unit testing of capacitor units and capacitor banks;

b) elaborate special safety rules;

c) Provide installation and operation guidelines.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 311 (all parts) Insulation coordination [IEC 60071-1 (all parts)]

GB/T 311.1-2012 Insulation coordination Part 1. Definitions, principles and rules (IEC 60071-1.2006, MOD)

GB/T 1984 high voltage AC circuit breaker (GB/T 1984-2014, IEC 62271-100.2008, MOD)

GB/T 11024.4-2019 Parallel capacitors for alternating current power systems with nominal voltages up to 1000V. Part 4. Internal fuses

GB/T 11022 | GB/T 11024.4 | GB/T 11024.2 | GB/T 47158 | GB/T 19749.4 | GB/T 11024.3 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 84 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 311 · IEC 60071 · GB/T 311.1-2012 · IEC 62271

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