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GB/T 34940.3-2017Static transfer systems (STS) -- Part 3: Method for specifying performance and test requirements (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 34940.3-2017 (Static transfer systems (STS) -- Part 3: Method for specifying performance and test requirements) is available as an English-translated PDF.

GB/T 34940.3-2017 — GB/T 34940 is suitable for stand-alone operation, scheduled to ensure continuous power supply load AC Static Switching System (STS). The system is two or multiple independent AC source for interrupted or uninterrupted controlled switchover.

GB/T 34940 includes the STS and its accessories into the AC power grid integrated information, but also includes the switching element and its control and the requirements for protection components (if applicable).

Part 1 of GB/T 34940 covers general and safety requirements. Part 2 of GB/T 34940 is Electromagnetic Compatibility (EMC). GB/T 34940 provisions of this section determine the performance of the methods and test requirements, including GB/T 34940.1 requirements, applicable safety Full test.

This section applies to AC voltage not exceeding 1000V single-phase, two-phase and three-phase static switching system. This section takes precedence over versatility can be standard in all aspects, and without additional performance testing.

These requirements are taken into account the physical dimensions of the STS and the coverage of the power rating data are required for different test conditions.

This section applies as a standalone product STS, whether it be a unit of equipment or a combination of units.

This section does not apply to. --- Switching DC source device; --- Single AC source system; --- Only use the mechanical and electrical switching device to allow the interruption of the load during the switching process, and is intended for emergency power supply system or be GB/T 14048.11 covered by the static switching system; --- Integrated in the UPS, is covered by GB/T 7260 automatic switching device.

Note. Emergency power supply systems intended for use in vehicles, boats, aircraft, and specific regulations (eg for medical facilities, firefighting and emergency rescue, etc.) and tropical There are additional or different requirements for STS in areas or at altitudes above 1000m.

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Document preview — GB/T 34940.3-2017

National Standard of the People's Republic of China

ICS: 29.200; 29.240.30
Classification: K 85

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 General Definitions
3.2 Rating
3.3 Enter the value
3.4 Output value
4 Performance requirements
4.1 Declared Electrical Characteristics
4.2 Normal operating conditions
4.3 Switching characteristics
4.4 Neutral management
4.5 Performance requirements determined by purchaser
5 STS test
5.1 Overview
5.2 Electrical test
5.3 Transport and Environment
Appendix A (Normative) Reference load
Appendix B (Normative) STS voltage detection tolerance
Appendix C (Informative) Purchaser Specification Guide
Appendix D (Informative) Static Switch System Neutral Line Management
Appendix E (informative) output short circuit test procedures
Appendix F (Normative) Neutral switching in static switching systems - Additional requirements
Appendix G (Normative) Back-feed protection test
Appendix H (normative) Minimum and maximum cross-sectional area of copper conductor suitable for connection
References
Figure 1 Compliant Load Current (AC Input Power Common Ground, Common STS Neutral)
Figure 2 abnormal load current (AC input power ground alone, the public STS neutral)
Figure 3 STS circulation test
Figure 4 Typical Circuit for Measuring Conduction Losses
Figure A.1 Reference resistive load (linear)
Figure A.2 Reference Inductance - Resistive Series Load (Linear)
Figure A.3 Reference Inductance - Resistive Parallel Load (Linear)
Figure A.4 Reference Capacitance - Resistive Series Load (Linear)
Figure A.5 Reference capacitance - resistive parallel load (linear)
Figure A.6 Reference Nonlinear Load
Figure B.1 Class 1 power tolerance
Figure B.2 Class 2 power tolerance
Figure B.3 Class 3 power tolerances
Figure B.4 Class 4 power tolerance
Figure D.1 STS Neutral with AC Input Power Common Ground (Load Current Compliance)
Figure D.2 STS neutral with AC input power Independent ground isolation transformer (load current complies with specification)
Figure D.3 STS with neutral switch isolated from AC input power supply (steady-state load current complies with specification)
Figure E.1 STS output withstand current test circuit
Figure F.1 Neutral Switch Failure Causes Load Voltage Change
Figure F.2 Switching Overlap STS Neutrals (AC Input Power Grounded Separately, Transient Load Current Flows in Protective Earth Conductor)
Table 1 Switch interrupt category "T"
Table 2 STS performance characteristics of the test
Table 3 Short-time withstand current
Table 4 free fall test
Table C.1 STS Technical Data Table
Table E.1 corresponds to the test current power factor and time constant and the current peak value and the root mean square value of the value of n
Table H.1 suitable for connecting copper conductor minimum and maximum cross-sectional area (taken from GB/T 7251.1-2013)

Foreword

GB/T 34940 "Static Switching System (STS)" is divided into the following sections.

--- Part 1. General and safety requirements;

--- Part 2. Electromagnetic compatibility (EMC) requirements;

--- Part 3. Determination of performance methods and test requirements.

This section GB/T 34940 Part 3.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This section uses the redrafted law to amend the use of IEC 62310-3:2008 "Static Switching System (STS) Part 3. Determination of performance Method and test requirements. " this part made the following structural adjustment.

--- According to the referenced IEC terminology standard version and chapter number changes, adjust the entry number of the referenced terms (see 3.1.25, 3.2.4, 3.2.5);

--- According to the order mentioned, adjust the number of some appendix Appendix C is adjusted to Appendix D, Appendix D adjusted to Appendix F, Appendix E adjusted to Appendix C, Appendix F adjusted to Appendix E (see Appendix C ~ Appendix F);

--- Unnumbered overhang number, followed by the same level of reg number followed by adjustment (see 4.1.2.1 ~ 4.1.2.10, 5.2.6.1 ~ 5.2.6.3 and 5.2.10.2.1 ~ 5.2.10.2.3);

This section there are technical differences compared with IEC 62310-3:2008, the provisions of these differences have been passed in the outer margin of its margin the position of the vertical single line (-) is marked.

This part of IEC 62310-3:2008 technical differences and the reasons are as follows.

--- On normative references, this section made a technical difference with the adjustment to meet the technical conditions in China, the specific adjustment as follows.

- Replacing IEC 60146-1-1 with revision GB/T 3859.1 using international standards - Use IEC 60529 instead of GB/T 4208 equivalent to international standards - Replace IEC 60950-1 with GB 4943.1 modified to use international standards - Replaces IEC 62040-3 with International Standard GB/T 7260.3 modified - Replacing IEC 60947-6-1 with revision GB/T 14048.11 adopting international standards - Replace IEC 61000-2-2 with GB/T 18039.3 equivalent to international standards - Replace ISO 7779 with GB/T 18313 equivalent to international standard - Equivalent with the international standard GB/T 34940.1-2017 static switching system (STS) Part 1. General and safety all requirements of IEC 62310-1 - Equivalent with the international standard GB/T 34940.2-2017 static switching system (STS) Part 2. Electromagnetic compatibility Sexual (EMC) requirements replace IEC 62310-2

--- The term "synchronous switching" uses the definition 3.1.19 of GB/T 34940.1-2017, so that different parts of the same standard consistent (See 3.1.15);

--- Increasing the switching limit of 5ms, corresponding to the switching interrupt category T = 3. The original switch interrupt category T = 3,4,5 adjusted accordingly cut Interrupt category T = 4,5,6 (see 4.1.1);

--- Reference standard GB/T 7251.1-2013 in Table A.1 rated current "12A" to "13A", Appendix H in Table H.1 Change accordingly (see Appendix H);

According to the provisions of GB/T 1.1, delete the E.5.1 article number and title.

This section made the following editorial changes.

--- Clause 5.2.1.2 quoted is corrected to "5.2.5.2" "4.1.2b" is corrected to "4.1.2.3" (see 4.3.1 and 5.2.6.2);

--- Added explanation of the meaning of the variables in equations (6) and (7) (see 5.2.8).

This part is proposed by China Electrical Equipment Industry Association.

This part of the National Power Electronic Systems and Equipment Standardization Technical Committee (SAC/TC60) centralized.

This section is drafted. Schneider Electric Information Technology (China) Co., Ltd., Xi'an Institute of Power Electronics, Guangdong Zhicheng Champion Group Co., Ltd., Huazhong University of Science and Technology, Qingdao Chuangtong Technology Development Co., Ltd., Zhejiang Kezheng Electronic Information Products Inspection Co., Ltd., Xiamen Kehua Hengsheng Co., Ltd., Zhuhai Titan Technology Co., Ltd., Xi'an love Paike Power Electronics Co., Ltd., China Power Industry Association Will, Renault (Changzhou) Electronics Co., Ltd., China Power Institute, Emerson Network Power Co., Ltd.

1 Scope

GB/T 34940 is suitable for stand-alone operation, scheduled to ensure continuous power supply load AC Static Switching System (STS). The system is two or multiple independent AC source for interrupted or uninterrupted controlled switchover.

Part 1 of GB/T 34940 covers general and safety requirements.

Part 2 of GB/T 34940 is Electromagnetic Compatibility (EMC).

GB/T 34940 provisions of this section determine the performance of the methods and test requirements, including GB/T 34940.1 requirements, applicable safety Full test.

These requirements are chosen to be consistent with the compatibility of low-frequency conducted disturbances and signal transmission in public low-voltage power supply systems GB/T 18039.3), and to ensure that STS has adequate performance levels for powering diverse and critical loads. These requirements are taken into account the physical dimensions of the STS and the coverage of the power rating data are required for different test conditions. This section applies as a standalone product STS, whether it be a unit of equipment or a combination of units. This section does not apply to.

--- Switching DC source device;

--- Single AC source system;

--- Only use the mechanical and electrical switching device to allow the interruption of the load during the switching process, and is intended for emergency power supply system or be GB/T 14048.11 covered by the static switching system;

--- Integrated in the UPS, is covered by GB/T 7260 automatic switching device.

2 Normative references

The following documents for the application of this document is essential. 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 2423.1 Environmental testing for electric and electronic products Part 2. Test methods Test A. Low temperature (GB/T 2423.1-2008, IEC 60068-2-1:2007, IDT) GB/T 2423.2 Environmental testing for electric and electronic products Part 2. Test methods Test B. High temperature (GB/T 2423.2-2008, IEC 60068-2-2:2007, IDT) GB/T 2423.3 Environmental testing for electric and electronic products Part 2. Test methods Test Cab. Constant hot and humid test (GB/T 2423.3-2006, IEC 60068-2-78:2001, IDT) GB/T 2423.5 Environmental testing for electric and electronic products Part 2. Test methods Test Ea and guidelines Impact (GB/T 2423.5-1995, IEC 60068-2-27:1987, IDT) GB/T 2423.8 Environmental testing for electric and electronic products Part 2. Test methods Test Ed. Free fall (GB/T 2423.8-

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 40 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 60068

Cited by

GB/T 7260.3-2024Uninterruptible power systems (UPS) - Part 3: Method of specifying the performance and test requirements

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