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GB 19212.3-2012 English PDF

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GB 19212.3-2012: [GB/T 19212.3-2012] Safety of power transformers, power supplies, reactors and similar products -- Part 3: Particular requirements and tests for control transformers and power supplies incorporating control transformers
Status: Valid

GB 19212.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 19212.3-2012	319	Add to Cart	3 days	[GB/T 19212.3-2012] Safety of power transformers, power supplies, reactors and similar products -- Part 3: Particular requirements and tests for control transformers and power supplies incorporating control transformers	Valid
GB 19212.3-2006	319	Add to Cart	3 days	Safety of power transformers, power supply units and similar -- Part 3: Particular requirements for control transformers	Obsolete

Similar standards

GB/T 19212.5 GB/T 10228 GB/T 8286 GB/T 19212.2 GB/T 19212.1 GB/T 19212.11

Basic data

Standard ID: GB 19212.3-2012 (GB19212.3-2012)
Description (Translated English): [GB/T 19212.3-2012] Safety of power transformers, power supplies, reactors and similar products -- Part 3: Particular requirements and tests for control transformers and power supplies incorporating control transformers
Sector / Industry: National Standard
Classification of Chinese Standard: K41
Classification of International Standard: 29.180
Word Count Estimation: 12,116
Older Standard (superseded by this standard): GB 19212.3-2006
Quoted Standard: GB 1002-1996; GB 1094.1; GB/T 2423.2-2001; GB/T 2423.8-1995; GB/T 2423.55-2006; GB/T 4074.3-1999; GB/T 4074.5-1999; GB/T 4074.6-1999; GB/T 4207-2003; GB 4208-2008; GB/T 12113-2003; GB 15092.1-2003; GB/T 16935.1-1997; GB/T 16935.3-2005; GB/T 17045-2006; GB
Adopted Standard: IEC 61558-2-2-2007, IDT
Regulation (derived from): National Standards Bulletin No. 13 of 2012
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 specifies control transformer and integral control power transformer safety requirements, for example, on the electrical, thermal and mechanical aspects of the safety requirements. This standard applies to the control transformer and

GB 19212.3-2012: [GB/T 19212.3-2012] Safety of power transformers, power supplies, reactors and similar products -- Part 3: Particular requirements and tests for control transformers and power supplies incorporating control transformers

---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.
Safety of power transformers, power supplies, reactors and similar products.Part 3. Particular requirements and tests for control transformers and power supplies incorporating control transformers ICS 29.180 K41 National Standards of People's Republic of China Replacing GB 19212.3-2006 Power transformers, power supplies, reactors and similar products Safety - Part 3. control and built-in control transformer Particular requirements and tests of power transformers Safetyofpowertransformers, powersupplies, reactorsandsimilarproducts- Part 3. Particularrequirementsandtestsforcontroltransformersand (IEC 61558-2-2.2007, Safetyofpowertransformers, powersupplies, reactorsandsimilarproducts-Part 2-2. Particularrequirementsand transformers, IDT) Issued on. 2013-05-01 2012-06-29 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 2 General requirements 5 General notes 2 Rating 2 6 7 Category 3 8 Marking and other information 3 4 9 Protection against electric shock 10 change the input voltage setpoint 4 11 load output voltage and output current 4 12 no-load output voltage 4 13 short-circuit voltage 4 14 Fever 5 15 short-circuit and overload protection 5 16 Mechanical strength 5 17 to prevent dust, solid objects and moisture into the harmful Protection 5 18 insulation resistance, dielectric strength and leakage current 5 19 Structure 5 20 Component 6 21 Internal wiring 6 22 Supply connection and other external flexible cable or cord 6 23 Terminals for external conductors 6 24 protection grounding device 6 25 Screws and connections 6 26 creepage distances, clearances and distances through insulation 6 27 heat, fire and electrical resistance mark of 7 28 7 rust Appendix 8

Foreword

All technical content in this Part of GB 19212 is mandatory. GB 19212 "of power transformers, power supplies, reactors and similar products -" 1) now includes the following sections. 1) This series of standards, some parts are under "power transformers, power supplies, reactors and similar products," the title, some parts in the "Supply Voltage For the next 1100V and below transformers, reactors, power supply units and similar products, "the title, the title of this series of standards possible future release It will be modified. --- Part 1. General requirements and tests; --- Part 2. Particular requirements and general purpose test transformer isolated and built separate transformer power supply; --- Part 3. Specific requirements and test control and built-in control transformer transformer power supply; --- Part 4. Gas and oil burner ignition transformers for special requirements; --- Part 5. Particular requirements and tests and built-in isolation transformer isolation transformer power supply device; --- Part 6. Particular requirements for shaver transformers and shaver supply units; --- Part 7. Particular requirements and tests for safety isolating transformers and built-in safety isolating transformer power supply device; --- Part 8. Particular requirements for transformers for toys and power supplies and test; --- Part 9. Particular requirements for bell and bell transformers; --- Part 10. Particular requirements for class Ⅲ portable transformers for filament lamps; --- Part 13. Particular requirements for constant voltage transformers; --- Part 14. Particular requirements for auto and test transformers and autotransformers built power supply device; --- Part 15. Particular requirements for the regulator; --- Part 16. supply of medical locations Particular requirements for isolating transformers; --- Part 17. switched-mode power supply units and switch-mode power supply unit with the special requirements for transformers and tests; --- Part 20. Particular requirements for interference attenuation transformers; --- Part 21. Small reactors Particular requirements; --- Part 24. Particular requirements for transformers for construction sites. Other parts are under consideration. This is Part 3 GB 19212's. This is part of the GB 19212.1-2008 developed on the basis of this part of the need and GB 19212.1-2008 used in conjunction. This part is the GB 19212.1-2008 corresponding chapter, article supplement and modified so GB of content 19212.1-2008 Conversion-oriented part of the contents. The newly added section for GB 19212.1-2008 Terms numbered starting from 101. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB 19212.3-2006 "Safety - Part 3 power transformers, power supply units and similar products. control transformer Special requirements ", compared with GB 19212.3-2006, the main technical changes are as follows. a) the standard name to "Safety - Part 3 power transformers, power supplies, reactors and similar products. control transformer and built-in control System power transformer Particular requirements and tests "; b) Chapter 1 increase in the content related to the contents control transformer power aspect, and provides built-in control transformer and control transformer The power supply of the rated thermal output; c) Chapter 2 adds support for GB reference of 1094.11; d) Chapter 3 Modify the term "transformer" scope; modify the nominal heat output and allow instantaneous output of terms and definitions; increase Plus terms and definitions instantaneous rated output current; e) Chapter 6 increased the requirements for the internal operating frequency; f) modify the contents of 14.1; g) Modify the contents of 19.1, complemented output circuits. This section uses the translation method identical with IEC 61558-2-2.2007 "of power transformers, power supplies, reactors and similar products - Part 2-2. Control transformer and built-in control transformer power of special requirements and tests "(in English). Correspondence between the consistency of the standards of international documents and normative references of the following documents. Part 11 GB 1094.11-2007 power transformers. dry-type transformers (IEC 60076-11.2004, MOD). For ease of use, this part of the IEC 61558-2-2.2007 also made the following editorial changes. a) "this International Standard" by "this section"; b) Remove IEC 61558-2-2.2007 Foreword. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Small power transformers, reactors, power supply units and similar products Standardization Technical Committee (SAC/TC418) Centralized. This section is drafted. Shenyang Transformer Research Institute, China Electronics Standardization Institute, National Radio and Television Product Quality Supervision and Inspection Test center (Beijing Terrett detection technology services limited liability company), Ministry of Information Industry Institute of Electronics fifth quality inspection center, Shanghai Quality Inspection and Technical Research amount of electrical and electronic household appliances, quality inspection. The main drafters of this section. Zhang Xianzhong, Zhang Lili, Zhang Yafang, He Guofeng, Yu Yimin, Zhang. This part of the standard replaces the previous editions are. --- GB 19212.3-2006. Power transformers, power supplies, reactors and similar products Safety - Part 3. control and built-in control transformer Particular requirements and tests of power transformers

1 Scope

GB 19212.1-2008 this chapter is replaced by the following. This part of GB 19212 specifies the safety requirements and built-in control transformer control transformer power supply, for example with regard to electrical, temperature Mechanical and safety regulations. This section applies to control transformer and built-in control electronics and power transformers. This part is not intended to be used with the transformer And power input and output terminals or output receptacle connector and an external circuit components. This section does not apply to a transformer included in IEC 60076-11. This section applies to Stationary or mobile, single-phase or multi-phase, air-cooled (self-cooled or air-cooled), stand-alone or with matching transformers and control Built-in power supply control transformer, the rated supply voltage not exceeding AC 1000V, rated supply frequency and internal operating frequency not exceeding 500Hz. Nominal heat output does not exceed. --- Single-phase control transformer and built-in control transformer single phase power for 25kVA; --- Multi-phase control transformer control transformer and built a multi-phase power supply for the 40kVA. If the purchaser and producing another time protocol, this section also applies to the rated output does not limit the control transformer and built-in control Power transformer. This section applies to dry-type transformers, the windings may be encapsulated or non-encapsulated type. Load output voltage or the rated output voltage not exceeding 1000V AC or ripple-free DC 1415V. Independent of the control transformer control transformer and built an independent power source, no-load output voltage and/or the rated output voltage is not less than 50V AC or ripple-free DC 120V. This section includes a control transformer is used only for use between installation procedures or by the end product standard does not require double insulation or circuit plus Strong insulation occasions. Note 1. In general, transformers and control equipment built to supply a predetermined control transformers for use therewith provide the functionality required by the device with the power supply voltage Different voltages. Electric shock protection, for example, to provide or improve housing by other components of the apparatus. Part of the output circuit may be connected to the input circuit or Ground fault protection circuit. This section applies to a particular device (which is determined by the scope of the technical committee) supporting control transformer and built-in control transformer power supply. Note 2. Note the following. --- Transformer predetermined use on a vehicle, ship or aircraft, may require some additional requirements (according to other applicable standards, national regulations, etc.); --- Avoid the housing and the housing components such as protective measures by the outside influence of mold, insects, termites, solar radiation, and icing should also be considered; --- Transformer transport, storage and different working conditions should also be considered; --- Intended to be used for special circumstances, such as for the tropical environment transformers can be attached in line with national standards and other applicable rules of order Canadian requirements. Note 3. With the future development of transformer technology, may need to increase the upper limit frequency, but before then, you can use this section as a guide.

2 Normative references

In addition to the following references, GB 19212.1-2008 power transformers, power supplies, reactors and similar products - Safety - Part 1. General requirements and tests (IEC 61558-1.2005, IDT) of this chapter apply. The increase in the following chapter references. Part 11 IEC 60076-11 Power transformers. dry-type transformers (Powertransformers-Part 11. Dry-type transformers)

3 Terms and Definitions

Except for the following, GB 19212.1-2008 this chapter apply. The chapter, paragraph 3 should read. Since then, the term "transformer" means. if applicable, including the control transformer and built-in control transformer power supply. The chapter following is added. 3.1.101 Control transformer controltransformer The control circuit (for example, control, signaling, interlocking, etc.) to provide power transformer. 3.5.101 Nominal heat output ratedthermaloutput Rated output voltage and rated output current of the product, or multiphase transformer, equal to the rated output voltage and power factor 1 Corresponding to a multiple of the value of the product of the rated output current under continuous load operation (for example, three-phase transformer, which corresponds to a multiple of 3). If the transformer has more than one output winding or/and when the output winding with taps, its rated output is supplied to the load refers to the simultaneous Windings each rated output voltage and rated output current of the product of the sum. 3.5.102 Allow instantaneous output admissibleinstantaneousoutput Rated output voltage and rated output current instantaneous product of, or multiphase transformer, equal to the rated output voltage and power factor Rated 0.5 stars instantaneous output current to a value corresponding to a multiple of the product of (for example three-phase transformer, which corresponds to a multiple of 3). If the transformer has more than one output winding or/and when the output winding with taps, its rated output means simultaneously supplied instantaneous negative Windings contained in each of the rated output voltage and rated current is the sum of the product of the instantaneous output of. 3.5.103 Rated instantaneous output current ratedinstantaneousoutputcurrent When the power factor for manufacturing of transformers specified rated output voltage and rated power frequency specific operating conditions of 0.5 Output current.

4 General requirements

This chapter applies the GB 19212.1-2008. General Description 5 tests This chapter applies the GB 19212.1-2008.

6 RATINGS

GB 19212.1-2008 this chapter is replaced by the following. 6.101 rated output voltage shall not exceed 1000V AC or ripple-free DC 1415V, independent transformer, the rated output voltage should exceed Over 50V AC or ripple-free DC 120V. Independent transformer, if not ready output windings connected to each other are connected in series, the output voltage limits still apply. 6.102 nominal heat output shall not exceed. --- Single-phase transformers, 25kVA, except when otherwise agreed between the purchaser and producing; --- Multiphase transformers, 40kVA, except when otherwise agreed between the purchaser and the manufacturer side. 6.103 rated frequency and internal operating frequency should not exceed 500Hz. Rated supply voltage should not exceed 6.104 AC 1000V. It should be marked by visual inspection to verify compliance with the requirements of 6.101 to 6.104. Category 7 This chapter applies the GB 19212.1-2008.

8 Marking and other information

Except for the following, GB 19212.1-2008 this chapter apply. 8.1c) is replaced by the following items. Transformers shall be marked with the nominal heat output and allow VA value of the instantaneous output between them with a short a slash (such as 100/300VA); 8.1d) shall not apply. 8.1h) is replaced by the following items. Transformer should be marked with one of the graphic symbols shown in 8.11. 8.11 Addition of the following. Symbol or graphic symbol or name identification code Description No hazard control transformer Non-short-circuit proof Control transformers Short-circuit proof control transformer (inherently short-circuit proof non-inherently short-circuit proof) The chapter increased the following provisions. 8.101 If the power supply side of the transformer with a permit to adjust its supply voltage tap, these taps should be marked with the corresponding tap The input voltage or the input voltage value (e.g., 5V or -5V). Note. If the control voltage regulated power transformer with a tap, then tap the preferred level of 5%.

9 Protection against electric shock

This chapter applies the GB 19212.1-2008. 10 change the input voltage setpoint This chapter applies the GB 19212.1-2008. 11 load output voltage and output current Except for the following, GB 19212.1-2008 this chapter apply. Article 11.1 is replaced by the following. When the transformer is connected to the rated supply voltage rated frequency, and energy with a rated output voltage and rated power factor of 1 (for post Arising under flow) nominal heat output impedance as load, deviation of the output voltage and rated output voltage value should not exceed ± 5%. Meets the requirements, should be under steady state conditions is determined by measuring the output voltage. Thereafter, the transformer is applied to produce a permit instantaneous output impedance at rated output voltage and a power factor of 0.5 (inductive) under As a load, immediately measure the output voltage, its value should not be less than the rated thermal output of 95% of the measured voltage value. Note. within the permissible output measurement instantaneous output voltage under this overload should be applied after 50ms performed, so the additional heat effects on the transformer Min. To have more than one rated supply voltage transformer, the present requirements for each rated supply voltage are applicable. 12 no-load output voltage Except for the following, GB 19212.1-2008 this chapter apply. The chapter increased the following provisions. 12.101 load output voltage shall not exceed 1000V AC or ripple-free DC 1415V. Independent transformer, the output voltage limit also applies to the Ready output windings connected to each other was the case connected in series. 12.102 no-load output voltage difference between the output voltage and the load should not be too large. This chapter the measured load output voltage difference between the load output voltage test of Clause 11 when measured by, when expressed as a percentage of the latter When, should not exceed 10%. NOTE. This ratio is defined as follows. U -U load load U × 100% load Where. U --- load load output voltage, in volts (V); U load --- load output voltage, in volts (V). Meets the requirements of 12.101 and 12.102, and should be at ambient temperature transformer connected to the rated frequency of the rated supply voltage measuring Load output voltage to check. 13 short-circuit voltage This chapter applies the GB 19212.1-2008. Fever 14 Except for the following, GB 19212.1-2008 this chapter apply. Article 14.1 is replaced by the following paragraph 10. Rated frequency transformer connected to the rated supply voltage, and with rated output voltage and rated power factor (only AC) under Nengchan Students rated heat output impedance for the load. Upon reaching steady state, the output current is measured, and then the power supply voltage is increased by 10%, adjusted input The current to reach the previously measured output current value. Independent transformer without adjusting the output current. Thereafter, the test line is not changed. If you think no-load conditions are more adverse conditions, it should also repeat this test at no load. 15 short-circuit and overload protection This chapter applies the GB 19212.1-2008. 16 Mechanical strength This chapter applies the GB 19212.1-2008. 17 to prevent dust, solid objects and moisture into the harmful Protection This chapter applies the GB 19212.1-2008. 18 insulation resis......

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Question 5: Should I purchase the latest version GB 19212.3-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 19212.3-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.