GB/T 47158-2026Shunt power capacitors of the self-healing type for AC systems having a rated voltage above 1 000 V (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is modified to adopt IEC 63210:2021 "Self-healing parallel power capacitors for AC systems with nominal voltage above 1000V".

Compared with IEC 63210:2021, this document has undergone the following structural adjustments.

---Removed f) and g) of A.1 in Annex A of IEC 63210:2021, and the subsequent column numbers are automatically moved forward.

The technical differences between this document and IEC 63210:2021, and the reasons therefor, are as follows.

a) IEC 60071-1:2019 has been replaced with the normatively referenced GB/T 311.1-2012 to adapt to my country's technical requirements (see GB/T 311.1-2012).

29.9.2);

b) IEC 60071-2:1996 has been replaced with the normatively referenced GB/T 311.2-2013 to adapt to my country's technical conditions (see...).

29.9.2);

c) IEC 60549 has been replaced with the normatively referenced GB/T 15166.4 to adapt to my country's technical requirements (see Appendix C);

d) IEC 60060-1 has been replaced with the normatively referenced GB/T 16927.1 to adapt to my country's technical requirements (see 10.2 and section 1).

Chapter 15);

e) The clause 5.2 in IEC 63210:2021, which states that "for capacitors with a rated frequency below 50 Hz, the frequency should be 50 Hz or 60 Hz", has been removed.

The description of "Tests and measurements shall be conducted unless otherwise agreed between the manufacturer and the purchaser" is provided above, as this provision has already been covered (see [link to relevant document]).

f) The "energy flux density per unit area" in section 6.2 of IEC 63210:2021 has been removed, as it is not suitable for practical use in my country (see section 6.2);

g) The terms "plastic" and "non-conductive" in the "AC voltage test between terminals and housing" have been changed to "insulating" to standardize the terminology and facilitate application and understanding.

(See Chapters 10 and 15);

h) The requirement for "in the uncoated state" in Chapter 12 of IEC 63210:2021 has been removed to comply with actual test operation requirements;

i) The concept of tandelta0 in thermal stability tests has been added, "tandelta0 - value before the test", to facilitate reading and understanding (see Chapter 13);

j) The wording regarding the range of deviation variation has been revised to better reflect actual judgment requirements and align with other similar standards, including.

- The terminal voltage test should be changed to "The capacitance deviation caused by this test should be within the range of -0.5% to 0.5%." the range of tandelta deviation caused by the experiment should be -30% to 30% (see Chapter 9);

- The thermal stability test has been revised to "For capacitance deviation variation range, it should be -2% to 2%; for loss tangent tandelta..." the deviation variation range should not exceed 1.2tandelta0 1×10-4 (see Chapter 13);

- In the overvoltage test, change it to "The total capacitance deviation variation range should be -2% to 2%" and "The tandelta deviation variation range should not be..." Greater than 1.3tandelta0 1×10-4 (see Chapter 16);

- In the short-circuit discharge test, the following changes were made. "The capacitance deviation variation range should be -2% to 2%" and "The tandelta deviation variation range should not be..." Greater than 1.2tandelta0 1×10-4 (see Chapter 17);

- In the self-healing test, the values were changed to "the capacitance deviation variation range should be -0.5% to 0.5%" and "the tandelta deviation variation range should not be..." "Greater than 1.1tandelta0 1×10-4", and the requirement for the sign of loss was removed (see Chapter 18);

k) The requirement clause of IEC 63210:2021 has been amended to "Destructive testing may be performed using test specimens comparable to those used in the production of capacitors".

The addition of "" increases the options for actual operation (see 19.1);

l) The "heating method" in the test procedure (internal protection) for "capacitors without active monitoring safety devices" has been modified to match the specifications of similar products.

The product requirements must be consistent (see 19.2);

m) The insulation levels in Tables 3 and 4 of IEC 63210:2021 have been removed because they are inconsistent with my country's national conditions; at the same time, according to my country's...

In practice, Table 3, "Standard Insulation Level," was compiled using the values specified in Tables 4 and 5 of GB/T 311.1-2012.

(See Table 3);

n) The phrase "at a peak overvoltage of 1.9UN" has been changed to suit the actual situation in my country (see Chapter 23);

o) The clause "The potential impact on personnel safety should always be taken into account" has been changed to a requirement clause, emphasizing the importance of safety (see section [number]).

Chapter 24);

p) The following content has been added to the "Marking of Capacitor Units" section to adapt to the actual situation in my country (see Chapter 27).

- b) Name of the capacitor unit;

- c) The model number of the capacitor unit;

- h) Measured capacitance;

q) The following content has been added to the "Capacitor Bank Marking" section to adapt to the actual situation in my country (see Chapter 28).

- b) Name of the capacitor bank;

- c) The model number of the capacitor bank;

r) The value of Um in the instruction manual and nameplate has been changed (see 28.1);

s) Added the following to "Continuous Overcurrent". "The resonant current generated by the capacitor bank should not be connected when the transformer is under no-load conditions, as this could damage the capacitor."

t) The content of "Air Gap Distance" has been changed (see 29.9.2);

u) Removed f) from A.1 of IEC 63210:2021."For overvoltage cycle testing, the rated voltage and electrical stress shall be equal or..." for aging tests, the dielectric thickness should be within the range of 70% to 100%, but the rated electric field strength should be the same or higher.

"some" (see A.1);

v) The phrase "for overvoltage cycle test units" in section b) of A.2 "Test unit design" in IEC 63210:2021 has been removed (see A.2);

w) Modified section d) of A.2 "Test Unit Design" to state "The insulation thickness of the shell should be the same or thinner" (see A.2);

x) The calculation formula for "inrush" in D.4 has been changed (see D.4).

The following editorial changes have been made to this document.

a) The URLs for the ISO and IEC terminology databases have been removed from the "Terminology and Definitions" section;

b) Add "Routine Trials" to the titles of Chapters 7, 8, 11, and 12;

c) Note 3 of 8.1 has been amended, replacing the informative reference IEC 60996 with JB/T 8957;

d) Changed "loss" and "capacitor loss" in section 8.2 to "capacitor loss tangent";

e) Note 9.2 has been amended, replacing the informative reference IEC 60831-1 with GB/T 12747.1;

f) Notes to 9.2, 9.3, and 16.3 have been amended, replacing the informative reference IEC 60871-1 with GB/T 11024.1;

g) Replace IEC 60931-1, IEC 60931-2 and IEC 60931-3 with GB/T 17886 (all parts), and replace GB/T 3984 (all parts) with GB/T 17886 (all parts).

GB/T 6115 (all parts) replaces IEC 60110-1 and IEC 60110-2, and all parts replace IEC 60143-1.

IEC 60143-2, IEC 60143-3, and IEC 60143-4 are replaced by GB/T 3667 (all parts).

IEC 60252-2, replace IEC 61071 with GB/T 17702, replace IEC 61048 with GB/T 18489, and use...

GB/T 18504 replaces IEC 61049, GB/T 311 (all parts) replaces the IEC 60071 series, and GB/T 26218 is used.

(All parts) supersede the informative references to the IEC TS60815 series.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of Power Capacitors (SAC/TC45).

Deng Guangzhao, Li Shimin, Sun Jianru, Zhang Zhuping, Zheng Jushi, Ning Xiaobo, Zhu Lingyu, Xie Chong, Tong Kefeng, Yuan Jing, Chen Wei, Zhang Limei, Xiang Lei, Guo Deliang, Lu Wenhao, Qin Shaorui, Yao Cheng, Wang Lei, Zhao Chunsheng, Zhang Hailong, Guo Xiangming, Wang Zhandong, Ding Mingjun, Li Yinda, Wei Jun, Sun Jin, Huang Xiangqian, Yuan Tan, and Chen Shibo.

For AC systems with a nominal voltage of 1000V or higher Self-healing parallel power capacitors

1 Scope

This document specifies the usage conditions, quality requirements, and testing procedures for self-healing parallel power capacitors used in AC systems with a nominal voltage of 1000V or higher.

The requirements for testing classification, insulation level, marking, installation and operation guidelines are described, along with the corresponding test methods.

This document applies to AC power systems with a nominal voltage of 1000V or higher and a frequency of 15Hz to 60Hz, and is specifically designed to improve power efficiency.

Factor self-healing capacitor units and self-healing capacitor banks.

This document does not apply to the following capacitors.

---Self-healing parallel power capacitors for AC systems with a nominal voltage of 1000V and below [see GB/T 12747 (all parts)];

---Non-self-healing parallel power capacitors for AC systems with a nominal voltage of 1000V and below [see GB/T 17886 (all parts)];

---Non-self-healing parallel capacitors for AC power systems with a nominal voltage of 1000V or higher [see GB/T 11024 (all parts)];

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

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

--- AC motor capacitors [see GB/T 3667 (all parts)];

---Coupled capacitors and capacitive voltage dividers [see GB/T 19749 (all parts)];

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

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

---Capacitors for suppressing radio interference;

---Capacitors intended for use as components in various electrical devices;

---A capacitor intended for use under a DC voltage superimposed with an AC voltage.

Requirements for various auxiliary devices, such as insulators, switches, transformers, external fuses, and external protectors, are given in the relevant documents, but...

This is not included in the scope of this document.

The purpose of this document is.

a) To establish unified rules regarding the performance, rating, and testing of self-healing capacitor cells and capacitor banks;

b) Explain the specific safety rules;

c) Provide installation and operation guidelines.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 311.1-2012 Insulation Coordination - Part 1: Definitions, Principles and Rules (IEC 60071-1:2006) GB/T 311.2-2013 Insulation Coordination Part 2: Guidelines for Use (IEC 60071-2:1996, MOD) GB/T 15166.4 High-voltage AC fuses - Part 4: Fuses for external protection of parallel capacitors (GB/T 15166.4-2021, IEC 60549:2013, MOD) GB/T 16927.1 High Voltage Testing Techniques – Part 1: General Definitions and Test Requirements (GB/T 16927.1-2011)