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GB/T 14048.16-2016 English PDF

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GB/T 14048.16-2016: Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
Status: Valid

GB/T 14048.16: Evolution and historical versions

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GB/T 14048.16-2016English514 Add to Cart 3 days [Need to translate] Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines Valid GB/T 14048.16-2016
GB/T 14048.16-2006English919 Add to Cart 4 days [Need to translate] Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines Obsolete GB/T 14048.16-2006

PDF similar to GB/T 14048.16-2016


Standard similar to GB/T 14048.16-2016

GB/T 14048.5   GB/T 14048.6   GB 16916.1   GB/T 14048.9   GB/Z 14048.24   GB/T 14048.11   

Basic data

Standard ID GB/T 14048.16-2016 (GB/T14048.16-2016)
Description (Translated English) Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K31
Classification of International Standard 29.130.20
Word Count Estimation 27,282
Date of Issue 2016-08-29
Date of Implementation 2017-03-01
Older Standard (superseded by this standard) GB/T 14048.16-2006
Quoted Standard GB/T 2423.5-1995; GB/T 2423.10-2008; GB/T 2828.1-2012; GB 4824-2013; GB/T 7153-2002; GB/T 13002-2008; GB/T 17626.11-2008; IEC 60068-2-1; IEC 60417-2002; IEC 60751-1983; IEC 60751-1983/A1-1986; IEC 60751-1983/A1-1995; IEC 60947-1-2007; IEC 60947-5-1-2003
Adopted Standard IEC 60947-8-2011, IDT
Regulation (derived from) National Standard Announcement 2016 No.14
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 standard specifies the rules and industrial applications of the control unit. The control unit performs the switching function according to the signal of the thermal detector (in accordance with GB/T 13002-2008) integrated with the rotary motor. For systems with positive characteristic temperature coefficient (PTC) thermistor detectors, this standard specifies the rules for the system and its associated control units. The PT100 detector complies with IEC 60751, which specifies the resistance value corresponding to the detector temperature. This standard lists the mating characteristics of this particular positive temperature coefficient thermistor detector and its associated control unit (referred to as "Type A detectors and" "Type A control units") for thermal protection systems Claim.

GB/T 14048.16-2016: Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines


---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.
Low-voltage switchgear and controlgear.Part 8. Control units for built-in thermal protection (PTC) for rotating electrical machines ICS 29.130.20 K31 National Standards of People's Republic of China Replace GB/T 14048.16-2006 Low voltage switchgear and control equipment Part 8. Mounting thermal protection for rotating electrical machines (PTC) control unit Part 8. Controlunitsforbuilt-inthermalprotection(PTC)for Rotating electricalmachines (IEC 60947-8.2011, IDT) 2016-08-29 released.2017-03-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword III Introduction V 1 Scope 1 2 Normative references 1 3 Terms, definitions, symbols and abbreviations 2 3.1 Terms and Definitions 2 3.2 Symbols and abbreviations 5 4 Category 5 5 Features 5 5.1 General requirements 5 5.2 Types of electrical appliances 5 5.3 Electrical rating of the protection system 7 5.4 Characteristic change type thermal detector rating 7 5.5 Control unit detector circuit rated voltage 8 6 Product Information 8 6.1 Content of the data 8 6.2 Mark 8 6.3 Installation, Operation and Maintenance Instructions 9 7 Normal use, installation and transportation conditions 9 8 Structural and performance requirements 9 8.1 Structural requirements 9 8.2 Performance requirements 9 8.3 Electromagnetic Compatibility (EMC) 11 9 Test 13 9.1 Test Classification 13 9.2 Verifying structural requirements 13 9.3 Verifying Performance Requirements 13 9.4 EMC Test 17 9.5 Routine and sampling tests 19 Appendix A (Normative) Thermal detector 20 for thermal protection systems Appendix B (Normative) Special Test 22

Foreword

GB 14048 "Low-voltage switchgear and control equipment" currently includes the following parts. --- Part 1. General; --- Part 2. Circuit breakers; --- Part 3. Switch, isolator, disconnector and fuse combination; ---Part 4-1. Contactors and motor starters electromechanical contactors and motor starters (including motor protectors); --- Part 4-2. Contactors and motor starters - Semiconductor controllers and starters for AC motors (including soft starters); ---Part 4-3. Contactor and motor starters for non-motor load AC semiconductor controllers and contactors; ---Part 5-1. Control circuit electrical appliances and switching components electromechanical control circuit electrical appliances; ---Part 5-2. Control circuit electrical appliances and switching components proximity switches; ---Part 5-3. Control circuit electrical appliances and switching components with a defined function of proximity switches (PDF) under fault conditions Claim; ---Part 5-4. Special test for performance evaluation methods for small-capacity contacts of control circuit and switching elements; ---Part 5-5. Electrical emergency brakes with control mechanical and switching elements with mechanical latching function; ---Parts 5-6. DC interface (NAMUR) for control circuit and switching element proximity sensors and switching amplifiers; ---Parts 5-7. Requirements for control circuit appliances and switching components for access devices with analogue outputs; ---Part 5-8. Control circuit electrical and switching components three-position enable switch; ---Parts 5-9. Control circuit electrical and switching component flow switches; ---Part 6-1. Multi-function electrical switchgear; ---Part 6-2. Multi-function electrical appliances (equipment) Control and protection switchgear (equipment) (CPS); ---Part 7-1. Terminal block for auxiliary device copper conductors; --- Part 7-2. Protective conductor terminal block of auxiliary device copper conductor; ---Parts 7-3. Safety requirements for auxiliary device fuse terminal blocks; --- Part 8. Load-in thermal protection (PTC) control unit for rotating electrical machines. This part is the eighth part of GB 14048, numbered GB/T 14048.16. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 14048.16-2006 "Low-voltage switchgear and control equipment - Part 8 Protection (PTC) Control Unit. Compared with GB/T 14048.16-2006, the main changes in this section are as follows. --- Chapter 5 "Features" added 5.2.7 "short circuit detection in the sensor circuit"; --- Supplement 8.1 "Structural Requirements", add specific requirements such as glow wire test and test based on flammability category; ---8.2 "Performance Requirements", change 8.2.9 "wet heat" to "environmental test"; --- Amend 8.2.10 "Impact and vibration" to add specific provisions to the clause; --- Amend 8.1.21 "Inspection requirements for short circuit of sensor circuit"; ---8.3.2.2 "Electrical appliances with electronic circuits", modified the requirements of performance acceptance criteria; --- Amend 9.3.1 "Test Procedure" to classify the requirements of the test procedure into "General Requirements", "Self-standing Control Units" and "Other Devices" The control unit" is described in three categories; ---9.3.3 "Performance test" added sub-clause 9.3.3.12 "Sensor circuit short-circuit detection verification and 9.3.3.13" shock and vibration Required verification"; --- Table 1 "EMC immunity test" increased the type of test, and the severity of radio frequency electromagnetic field radiation immunity test increased Added 2 levels; --- Appendix B "Special Test", delete the original B.1 "short circuit detection of the sensor circuit"; --- Change the original B.3 "wet heat" regulations to B.2 "Special tests - damp heat, salt spray, vibration and shock" and specify the detailed requirements; --- Remove the verification requirements for the short circuit of the sensor circuit in Appendix C (informative). This section uses the translation method equivalent to IEC 60947-8.2011 (version 1.2) "Low-voltage switchgear and control equipment Part 8. Mounted Thermal Protection (PTC) Control Unit for Rotating Electric Machines. The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows. --- GB/T 2423.1-2008 Environmental testing of electrical and electronic products - Part 2. Test methods Test A. Low temperature (IEC 60068-2-1..2007, IDT); --- GB/T 5465.2-2008 Graphical symbols for electrical equipment - Part 2. Graphical symbols (IEC 60417DB.2007, IDT); ---GB 9254-2008 Radio disturbance limits and methods of measurement for information technology equipment (CISPR22.2006, IDT); --- GB 14048.1-2012 Low-voltage switchgear and control equipment - Part 1. General (IEC 60947-1.2011, MOD); --- GB 14048.5-2008 Low-voltage switchgear and control equipment - Part 5-1. Control circuit electrical and switching components Electrical control circuit electrical appliances (IEC 60947-5-1.2003, MOD); ---GB/T 17626.2-2006 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test (IEC 61000-4-2. 2001, IDT); ---GB/T 17626.3-2006 Electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity test (IEC 61000-4-3.2002, IDT); ---GB/T 17626.4-2008 Electromagnetic compatibility test and measurement technology Electrical fast transient burst immunity test (IEC 61000-4-4.2004, IDT); ---GB/T 17626.5-2008 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test (IEC 61000-4-5. 2005, IDT); ---GB/T 17626.6-2008 Electromagnetic compatibility test and measurement technology Conducted disturbance immunity of RF field induction (IEC 61000-4-6.2006, IDT); ---GB/T 17626.8-2006 Electromagnetic compatibility test and measurement technology Power frequency magnetic field immunity test (IEC 61000-4-8. 2001, IDT); ---GB/T 17626.13-2006 Electromagnetic compatibility test and measurement technology AC power port harmonics, interharmonics and grid letters Low frequency immunity test (IEC 61000-4-13.2002, IDT). This section makes the following editorial changes according to the specific conditions of our country. ---Delete the index of terms and definitions; ---IEC 60410.1973 "Counting Inspection Sampling Plans and Procedures" is currently abolished, revised edition of IEC SC121A related standards In the article, the reference file for this technical content has been changed to ISO 2859-1, and its corresponding national standard is GB/T 2828.1-2012. "Sampling sampling test procedures - Part 1. Batch-by-batch sampling plan by Retrieval of Acceptance Quality (AQL)", Changed to the national standard GB/T 2828.1-2012; --- 6.1 "Product Information" for the type A control unit's labeling regulations have been repeated, so simplified to a single sentence "for the A-type control unit should be another In addition to the external standard number, the letter 'A' is added. This part was proposed by China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Low Voltage Apparatus Standardization Technical Committee (SAC/TC189). This section drafted by. Shanghai Electric Apparatus Research Institute, Zhejiang Zhengtai Electric Co., Ltd. The main drafters of this section. Zhang Lili, Li Wei, Li Hui. The previous versions of the standards replaced by this section are. ---GB/T 14048.16-2006.

Introduction

The thermal protection system referred to in this section is based on the principle of monitoring the temperature of the protected component and prevents the rotating motor from malfunctioning due to the cooling system. Or a simple and effective measure of excessive temperature rise caused by excessive ambient temperature. Conversely, a protection system that only relies on monitoring current cannot ensure This type of protection. Since the operating temperature and response time of the thermal protection system are predetermined and cannot be adjusted according to the corresponding motor usage conditions, For all fault conditions or improper use of the motor, the protection may not be fully effective. A thermal protection system in accordance with this section may consist of a characteristic change type thermal detector having an associated control unit and At some point in the detector's characteristics, it can be turned into a switching function. Thermal protection systems are widely used, and in all cases motor manufacturers will A detector is installed in the motor, the motor manufacturer either provides a control unit with the motor or specifies the specific control unit used Claim. The control unit is also customarily considered to be part of the control system and does not have to be supplied with the motor, so there is an interchangeable system. It is essential that the interchangeable system specifies the fit between the detector and the control unit. Cannot think that this particular system is better than the match Other systems in this section, but in some areas may be used in this interchangeable system, and are represented by "Type A". Low voltage switchgear and control equipment Part 8. Mounting thermal protection for rotating electrical machines (PTC) control unit

1 Scope

This part of GB/T 14048 specifies the rules and industrial applications of the control unit, which is integrated with the rotating machine. The signal of the thermal detector (in accordance with GB/T 13002-2008) performs the switching function. For systems with special characteristics of positive temperature coefficient (PTC) thermistor detectors, this section specifies the system and its associated controls. The rules of the unit. The PT100 detector complies with the IEC 60751 specification, which specifies the resistance value corresponding to the detector temperature. This section lists when this special PTC thermistor detector is associated with its control unit (called the "Type A Detector" and "Type A Control Unit") is required for the compatibility characteristics of the thermal protection system. Note. Since the operational characteristics of the control unit depend on certain aspects of the thermal detector, it is not possible to specify all the requirements for the operational characteristics of the control unit. Thermal protection Certain requirements of the protection system can only be determined taking into account the characteristics of the protected rotating electrical machine and the manner in which the detector in the motor is installed. For the above reasons, it is necessary for each feature to specify which party is responsible for specifying the characteristic value, which party is responsible for the consistency verification, and which party is responsible for Confirmation test.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2423.5-1995 Environmental testing for electric and electronic products - Part 2. Test methods Test Ea and guide. Impact (IEC 60068-2-27.1987, IDT) GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2. Test method test Fc. Vibration (sinusoidal) (IEC 60068-2-6.1995, IDT) GB/T 2828.1-2012.Sampling procedures for sampling by sampling - Part 1 . Batch-by-batch inspections by Retrieving Quality of Acceptance (AQL) Plan (ISO 2859-1.1999, IDT) GB 4824-2013 Industrial, Scientific and Medical (ISM) Radio Frequency Equipment Harassment Characteristics Limits and Measurement Methods (CISPR11. 2010, IDT) GB/T 7153-2002 Direct thermal step type positive temperature coefficient thermistors Part 1. General specification (IEC 60738-1. 1998, IDT) GB/T 13002-2008 Rotating electric machine thermal protection (IEC 60034-11.2004, IDT) GB/T 17626.11-2008 Electromagnetic compatibility test and measurement techniques Immunity to voltage dips, short interruptions and voltage changes Test (IEC 61000-4-11.2004, IDT) IEC 60068-2-1 Environmental test Part 2-1. Test test A. Low temperature (Environmental testing-Part 2-1. Tests-TestA. Cold) IEC 60417.2002 Graphical symbols for equipment (Graphicalsymbolsforuseonequipment) IEC 60751.1983 Industrial Platinum Resistance Temperature Sensors (Industrialplatinumresistancethermometersensors) IEC 60751.1983/A1.1986 Amendment No. 1 (Amendment 1, 1986) IEC 60751.1983/A1.1995 Amendment No. 2 (Amendment 2,.1995) IEC 60947-1.2007 Low-voltage switchgear and controlgear Part 1. General (Low-voltageswitchgearandcon- trolgear-Part 1.Generalrules) IEC 60947-5-1.2003 Low-voltage switchgear and controlgear - Part 5-1. Control circuit electrical and switching components electromechanical Control circuit electrical (Low-voltageswitchgearandcontrolgear-Part 5-1. Controlcircuitdevicesandswitchingele- ments-Electromechanicalcontrolcircuitdevices) Electromagnetic compatibility (EMC) - Part 4-2. Test and measurement techniques Electrostatic discharge immunity test [Electromagneticcompatibility(EMC)-Part 4-2. Testingandmeasurementtechniques-Electrostatic Dischargeimmunitytest] IEC 61000-4-3.2006 Electromagnetic compatibility (EMC) Part 4-3. Test and measurement techniques Test [Electromagneticcompatibility(EMC)-Part 4-3. Testingandmeasurementtechniques-Radia- Ted,radio-frequency,electromagneticfieldimmunitytest] Amendment 1 (Amendment 1,.2007) of IEC 61000-4-3.2006/A1.2007 IEC 61000-4-3.2006/A2.2010 Amendment No. 2 (Amendment 2,.2010) IEC 61000-4-4.2004 Electromagnetic compatibility (EMC) Part 4-4 Test and measurement techniques Electrical fast transient burst immunity Test [Electromagneticcompatibility (EMC)-Part 4-4. Testing and measurementtechniques- Electricalfasttransient/burstimmunitytest] IEC 61000-4-4.2004/A1..2010 Amendment No. 1 (Amendment 1,.2010) Electromagnetic compatibility (EMC) - Part 4-5. Test and measurement techniques - Surge immunity test [Elec- Tromagneticcompatibility(EMC)-Part 4-5. Testingandmeasurementtechniques-Surgeimmunity Test] IEC 61000-4-5.2005/C1.2009 No. 1 errata (Corrigendum 1,.2009) IEC 61000-4-6.2008 Electromagnetic compatibility (EMC) Part 4-6. Test and measurement techniques Immunity [Electromagneticcompatibility(EMC)-Part 4-6. Testingandmeasurementtechniques-Im- Munitytoconducteddisturbances,inducedbyradio-frequencyfields] Electromagnetic compatibility (EMC) - Part 4-8. Test and measurement techniques - Power frequency magnetic field immunity test [Electromagneticcompatibility(EMC)-Part 4-8. Testingandmeasurementtechniques-Powerfre- Quencymagneticfieldimmunitytest] IEC 61000-4-13.2002 Electromagnetic compatibility (EMC) Part 4-1. Test and measurement techniques Low-frequency immunity test for inter-wave and grid signals [Electromagneticcompatibility(EMC)-Part 4-13. Testingand measurementtechniques-Harmonicsandinterharmonicsincludingmainssignalingata.c.power Port,low-frequencyimmunitytests] IEC 61000-4-13.2002/A1.2009 Amendment No. 1 (Amendment 1,.2009) CISPR22.2008 Radio disturbance limits and measurement methods for information technology equipment (Informationtechnologyequip- ment-Radiodisturbancecharacteristics-Limitsandmethodsofmeasurement) 3 terms, definitions, symbols and abbreviations 3.1 Terms and definitions The following terms and definitions as defined in IEC 60947-1.2007 apply to this document. 3.1.1 Mounted thermal protection built-inthermalprotection Protecting a specific part of the rotating machine (called a protected part) with a thermal protection system to prevent the specific conditions due to thermal overload The temperature is too high, and all or part of the thermal protection system is a heat sensitive device installed inside the motor. 3.1.2 Thermal protection system thermalprotectionsystem A system for thermally protecting a rotating electrical machine by means of a built-in thermal detector together with a control unit. 3.1.3 Thermal detector Temperature-sensitive, electrically insulated devices (components) generate a switching action within the control system when the temperature reaches a set value. 3.1.4 Switch type thermal detector switchingtypethermaldetector A thermal detector that enables the switching element to produce a direct action. Note. The combination of the thermal detector and the switching element is considered a unit and is mounted in a rotating electrical machine. 3.1.5 Control system A system that converts a particular point in the characteristics of the thermal detector into a switching function that turns the power of the rotating electrical machine. Note. The system can be reset (manual or automatic) when the temperature drops to the reset temperature. 3.1.6 Protected part protectedpart A portion of the rotating electrical machine whose temperature is limited to a predetermined value by the action of the thermal protection system. 3.1.7 Slow change thermal overload thermaloverloadwithslowvariation The temperature rises slowly when it exceeds the normal operating temperature. Note 1. The temperature change of the protected component is slow enough that the temperature of the thermal detector does not have a significant delay to follow the temperature change of the protected component. Note 2. Slow change thermal overload can be caused by the following reasons. --- failure of the ventilation or ventilation system, such as partial blockage of the ventilation ducts, excessive dust, dirt, etc. on the heat sink of the coil or the base; ---The ambient temperature or the temperature of the cooling medium is too high; --- Mechanical overload gradually increased; ---The motor power supply is under voltage or over voltage for a long time; ---The motor is subjected to heavy work. 3.1.8 Fast change thermal overload thermaloverloadwithrapidvariation The temperature rises rapidly when it exceeds the normal operating temperature. Note 1. The temperature of the protected component changes so fast that the thermal detector cannot follow the temperature change of the protected component without delay. This may cause heat There is a large difference between the temperature of the detector and the temperature of the protected component. Note 2. Fast change thermal overload can be caused by the following reasons. motor stall, or in some cases, phase failure or under abnormal conditions (inertia is too high, voltage Too low, the load torque is abnormally high) start. 3.1.9 Thermal key component of the motor thermalycriticalpartofamachine The part of the motor that reaches the dangerous temperature fastest. Note. Thermally critical components of the motor under slow-changing thermal overload conditions may not be hot critical components under fast-changing thermal overload conditions. 3.1.10 Thermal protection with detector A form of protection in which the components that mount the thermal detector are the hot critical components of the motor. 3.1.11 The highest temperature after tripping is maximumtemperatureaftertripping The maximum temperature value reached by the protected component of the motor during the thermal overload system for a period of time after the thermal protection system trips. 3.1.12 Thermal protection category categoryofthermalprotection The temperature level allowed by the motor windings when the motor is subjected to thermal overload. 3.1.13 Characteristic change type thermal detector characteristicvariationthermaldetector A thermal detector whose characteristic changes with temperature can be produced in the control system according to the pre-specified temperature at the time of manufacture or the temperature set by the control unit. Switch function. Note. For example. resistance detector, thermocouple detector, negative temperature coefficient thermistor detector, positive temperature coefficient thermistor detector. 3.1.14 Characteristic mutation type thermal detector abruptcharacteristicchangethermaldetector A thermal detector that mutates in a predetermined temperature at the time of manufacture to produce a switching function in the control system. 3.1.15 Control unit A device that converts a change in the characteristics of a thermal detector into a switching function. Note. The control unit may be part of another unit or system. 3.1.16 Control circuit A circuit that controls a switching device that is disconnected and powered on. 3.1.17 Detector operating temperature detectoroperatingtemperature (TNF) The temperature at which the detector operates during temperature rise, or the change in characteristics with temperature causes the control unit associated with the detector to operate temperature. 3.1.18 System operating temperature systemoperatingtemperature(TFS) During temperature rise, the detector and control unit together cause the detector temperature when the control unit is operating. 3.1.19 Reset temperature resettemperature Detector and control unit for detector temperature or temperature-related characteristic change during detector operation during temperature drop The detector temperature at which the control unit can be reset. 3.1.20 Electrically separated contact elements electricalyseparatedcontactelements The contact elements belonging to the same control unit are sufficiently insulated from each other that they can be independently connected to electrically separate circuits. 3.1.21 PTC thermistor detector PTCthermistordetector A characteristic sudden type thermal detector made of a PTC thermistor, the resistance temperature characteristic of the thermistor part is called PTC, once it is warm When the degree exceeds the specified value, the resistance increases significantly, and the power consumption is negligible. 3.1.22 Type A detector markAdetector A PTC thermistor detector with the specific characteristics described in Appendix A. 3.1.23 Type A control unit markAcontrolunit A control unit having the specific characteristics specified in this section is intended for use with the Type A detector. 3.1.24 Control unit with short circuit detection in the thermal detector circuit controlunitwithshort-circuitdetectionwithinthe Thermaldetectorcircuit A control unit capable of detecting a short circuit in the thermal detector circuit. 3.1.25 Dynamic disconnection detection control unit controlunitwithdynamicwirebreakdetection A control unit capable of indicating a thermal detector circuit interrupt line. 3.2 Symbols and abbreviations The following symbols and abbreviations are used in this section. EMC EMC Ie rated operating current (5.3.3) Ith agreed to free air heating current (5.3.3) PTC positive temperature coefficient Q amplification factor (9.3.3.13.3) TFS system operating temperature (3.1.18) TNF detector operating temperature (3.1.17)...

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