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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
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[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
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| GB 19212.3-2006 | English | 319 |
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Safety of power transformers, power supply units and similar -- Part 3: Particular requirements for control transformers
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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| K41 | | Classification of International Standard | 29.180 | | Word Count Estimation | 12,116 | | Older Standard (superseded by this standard) | GB 19212.3-2006 | | Quoted Standard | GB 1002-1996; GB 1094.1; GB/T 2423.2-2001; GB/T 2423.8-1995; GB/T 2423.55-2006; GB/T 4074.3-1999;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
Table of Contents
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 resistance, dielectric strength and leakage current
Except for the following, GB 19212.1-2008 this chapter apply.
18.3 the following is added before Table 8a.
Transformer, basic insulation test voltage values (Table 8a in 1) and 3)) but also multiplied by a factor 1.4.
Note. because the load inductance of the transformer voltage has been shock, so basic insulation improved.
19 Structure
Except for the following, GB 19212.1-2008 this chapter apply.
GB 19212.1-2008 19.1 is replaced by the following.
19.1 input and output circuits shall be electrically isolated from each other. There can be no direct or indirect structure should enable these circuits
By connecting other conductive parts, except when you intend to take.
By visual inspection and measurement, taking into account the provisions of Chapter 18 and Chapter 26, to verify eligibility.
19.1.1 between the input winding and output winding insulation shall consist of at least basic insulation.
Moreover, it should meet the following requirements.
--- Class Ⅰ transformer input basic insulation insulation insulation by output winding and winding and the housing and between the housing constituted;
--- Of class Ⅱ transformer between the input winding and the housing, and the housing output winding insulation shall consist of double or reinforced insulation
constitute.
19.1.2 to change with no input connected to the housing and positioned intermediate conductive member (such as core) winding and output winding between
Insulation voltage, insulation intermediate conductive member and the input winding between the intermediate conductive member and the output windings shall be at least the basic
Insulation composition.
NOTE. There is at least basic insulation and with the input winding, output winding or housing spaced intermediate conductive member may be considered to be related components connected to it.
Moreover, it should meet the following requirements.
--- Class Ⅰ transformer, through basic insulation shall be insulated input winding and output winding between the intermediate conductive member constituted;
--- Transformers for class Ⅱ, through insulation between the output winding and the middle conductive housing member and the housing between the input winding insulation
It shall consist of double or reinforced insulation composition.
The chapter increased the following provisions.
19.101 should be no connection between the output circuit and protective earth, but with matching transformer, except when related equipment standards allow.
19.102 should be no connection between the output circuit and housing, but with matching transformer, except when related equipment standards allow.
It should by visual inspection to determine whether to meet the requirements.
20 Component
This chapter applies the GB 19212.1-2008.
21 Internal wiring
This chapter applies the GB 19212.1-2008.
22 Supply connection and other external flexible cable or cord
This chapter applies the GB 19212.1-2008.
23 Terminals for external conductors
This chapter applies the GB 19212.1-2008.
24 protection grounding device
This chapter applies the GB 19212.1-2008.
25 Screws and connections
This chapter applies the GB 19212.1-2008.
26 creepage distances, clearances and distances through insulation
Except for the following, GB 19212.1-2008 this chapter apply.
26.1 is replaced by the following paragraph 1.
Creepage distances, clearances and distances through insulation shall not be less than the value shown in Table 13, the value of basic insulation (table 1), 3) and
5)) but also multiplied by a factor 1.4.
101 Note. because the load inductance of the transformer voltage has been shock, so basic insulation improved.
27 heat, fire and resistance to tracking
This chapter applies the GB 19212.1-2008.
28 rust
This chapter applies the GB 19212.1-2008.
appendix
GB Appendix 19212.1-2008 apply.
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