T/CEEIA 415-2023 Insulation system for driving motor of new energy vehicle－Technical specification
1 Scope
This document specifies the technical requirements for insulation systems and insulation component materials of driving motors for new energy vehicles, describes the corresponding test methods and inspection procedures, and specifies the corresponding inspection rules.
This document is applicable to the design and test evaluation of insulation systems for driving motors of new energy vehicles.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 507-2002 Insulating liquids - Determination of the breakdown voltage at power frequency
GB/T 1408.1-2016 Insulating materials - Test methods for electric strength - Part 1: Tests at power frequencies
GB/T 2408-2021 Plastics - Determination of burning characteristics - Horizontal and vertical test
GB/T 2900.25-2008 Electrotechnical terminology - Rotating electrical machines
GB/T 4074.5-2008 Winding wires - Test methods - Part 5: Electrical properties
GB/T 4074.7-2009 Winding wire - Test methods - Part 7: Test procedure for the determination of the temperature index of enamelled winding wires
GB/T 5591.2-2017 Combined flexible materials for electrical insulation - Part 2: Methods of test
GB/T 5591.3-2018 Combined flexible materials for electrical insulation - Part 3: Specifications for individual materials
GB/T 5654-2007 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tanδ) and d.c. resistivity
GB/T 6109.1-2008 Enamelled round winding wire - Part 1: General requirements
GB/T 7095.1-2008 Enamelled rectangular copper winding wires - Part 1: General requirements
GB/T 7113.2-2014 Flexible insulating sleeving - Part 2: Methods of test
GB/T 7124-2008 Adhesives - Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies
GB/T 7304-2014 Standard test method for acid number of petroleum products by potentiometric titration
GB/T 11021-2014 Electrical insulation - Thermal evaluation and designation
GB/T 11026.4-2012 Electrical insulating materials - Thermal endurance properties - Part 4: Aging ovens - Single-chamber ovens
GB/T 11028-1999 Test methods for the determination of bond strength of impregnating agents to an enamelled wire substrate
GB/T 15022.2-2017 Resin based reactive compounds used for electrical insulation - Part 2: Methods of test
GB/T 17948.1-2018 Rotating electrical machines - Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
GB/T 17948.3-2017 Rotating electrical machines - Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
GB/T 17948.7-2016 Rotating electrical machines - Functional evaluation of insulation systems - General guidelines
GB/T 18488.1-2015 Drive motor system for electric vehicles - Part 1: Specification
GB/T 20112-2015 Evaluation and qualification of electrical insulation systems
GB/T 20139.1-2016 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system(EIS) - Part 1: Wire-wound winding EIS
GB/T 20139.2-2017 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system(EIS) - Part 2:Form-wound winding EIS
GB/T 20629.2-2013 Non-cellulosic paper for electrical purposes - Part 2: Methods of test
GB/T 20629.3-2019 Non-cellulosic papers for electrical purposes - Part 3: Unfilled aramid (aromatic polyamide) papers
GB/T 20631.2-2006 Pressure sensitive adhesive tapes for electrical purposes - Part 2: Methods of test
GB/T 21707-2018 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors
GB/T 22472-2008 Tests for flammability of plastic materials for parts in devices and appliances
GB/T 22720.1-2017 Rotating electrical machines - Qualification and quality control tests of partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters
GB/T 22720.2-2019 Rotating electrical machines - Qualification tests for the partial discharge resistant electrical insulation systems (Type Ⅱ) used in rotating electrical machines fed from voltage converters
GB/T 28046.3-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 3: Mechanical loads
GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 4: Climatic loads
GB/T 31838.2-2019 Solid insulating materials - Dielectric and resistive properties - Part 2: Resistive properties (DC methods) - Volume resistance and volume resistivity
JB/T 10508-2020 Slot wedges used in small and middle size electric machines - Specification
NB/SH/T 6042-2021 Lubricant oil for electric vehicle reducer
ASTM D6304-20: 2020 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.25 and GB/T 18488.1 and the following apply.
3.1
electrical insulating material
solid or liquid material, or a simple combination of such materials, having a negligibly low electrical conductivity, used to separate conductive parts at different potentials in electrical equipment
[Source: GB/T 11021-2014, 3.1]
3.2
insulation system
insulating material, or an assembly of insulation materials, to be considered in relation to associated conducting parts, as applied to a particular type or size, or part of electrical equipment
[Source: GB/T 2900.25-2008, 3.9]
3.3
coil
physical assembly of one or more electrical coil sections generally surrounded by common insulation
[Source: GB/T 2900.25-2008, 3.8]
3.4
random wound winding
winding in which the individual conductors occupy random positions in the coil side
[Source: GB/T 2900.25-2008, 3.8]
3.5
form-wound winding
regular winding consisting of coils which are given their shape before being assembled into the machine
[Source: GB/T 2900.25-2008, 3.8]
3.6
test object
unit being tested
[Source: GB/T 17948.7-2016, 3.2.1]
3.7
test specimen
individual component within a test object which can be used to generate one piece of test data (e.g. time to failure)
[Source: GB/T 17948.7-2016, 3.2.2]
3.8
thermal class
maximum continuous service temperature (in degrees Celsius) corresponding to the insulation system
[Source: GB/T 11021-2014, 3.1]
3.9
type I insulation systems
insulation system that is not subject to partial discharge during its life for frequency converter powered motor
Contents
Foreword i
Introduction iii
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
Annex A (Normative) Preparation of sealed containers
Annex B (Normative) Winding model coil
Annex C (Informative) Calculation of the water content in gearbox oil under sealed conditions
Annex D (Informative) Testing of gearbox oil
Annex E (Informative) Impulse voltage insulation class (IVIC)
Annex F (Informative) Dual-temperature test method for thermal evaluation of insulation systems
Bibliography
Figure 1 Schematic diagram of the bipolar symmetric square wave
Figure 2 Example of a rapid temperature change test cycle
Figure 3 Temperature cycle curve for the diagnostic test
Figure A.1 Schematic diagram of the sealed tube
Figure A.2 Schematic diagram of recommended dimensions of the sealed container
Figure B.1 Test specimen of random wound winding
Figure B.2 Test specimen of form-wound winding
Figure B.3 Examples of test objects
Figure C.1 Schematic diagram under sealed conditions
Figure C.2 Relationship between initial water content and actual water content in the liquid phase
Figure D.1 Water content
Figure D.2 Acid value
Figure D.3 Volume resistivity at 25°C
Figure D.4 Volume resistivity at 90°C
Figure D.5 Breakdown voltage
Figure D.6 Dielectric dissipation factor at 25°C
Figure D.7 Dielectric dissipation factor at 90°C
Figure E.1 Qualification test procedure for type I insulation systems
Figure E.2 Qualification test procedure for type II insulation systems
Figure E.3 Circuit diagram of a driving motor/inverter system of a new energy vehicle
Figure E.4 Circuit diagram of an industrial variable-frequency motor/inverter system
Figure F.1 Schematic diagram of the dual-temperature thermal evaluation test system
Figure F.2 Schematic diagram of the aging chamber
Table 1 General requirements for magnet wires
Table 2 Life of enamelled round copper wire under high-frequency impulse voltage
Table 3 Life of enamelled rectangular copper wire under high frequency impulse power supply
Table 4 Oil resistance of insulation component materials for direct oil-cooled motors
Table 5 Flame-retardancy requirements for insulation component materials
Table 6 Waveform parameters for the high frequency impulse resistance test
Table 7 Power-frequency withstand voltage limits between driving motor windings to ground
Table 8 Interturn impulse test voltage limits
Table 9 Recommended aging temperatures and aging subcycle exposure times
Table 10 Test voltage
Table A.1 Dimensions of sealed containers
Table C.1 Regression equations for saturated water vapor density versus temperature
Table D.1 Recommended test items for gearbox oil
Table E.1 Maximum permissible operating voltage at machine terminals as a multiple of UN
Table E.2 IVIC classification for type II insulation systems
T/CEEIA 415-2023 Insulation system for driving motor of new energy vehicle－Technical specification
1 Scope
This document specifies the technical requirements for insulation systems and insulation component materials of driving motors for new energy vehicles, describes the corresponding test methods and inspection procedures, and specifies the corresponding inspection rules.
This document is applicable to the design and test evaluation of insulation systems for driving motors of new energy vehicles.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 507-2002 Insulating liquids - Determination of the breakdown voltage at power frequency
GB/T 1408.1-2016 Insulating materials - Test methods for electric strength - Part 1: Tests at power frequencies
GB/T 2408-2021 Plastics - Determination of burning characteristics - Horizontal and vertical test
GB/T 2900.25-2008 Electrotechnical terminology - Rotating electrical machines
GB/T 4074.5-2008 Winding wires - Test methods - Part 5: Electrical properties
GB/T 4074.7-2009 Winding wire - Test methods - Part 7: Test procedure for the determination of the temperature index of enamelled winding wires
GB/T 5591.2-2017 Combined flexible materials for electrical insulation - Part 2: Methods of test
GB/T 5591.3-2018 Combined flexible materials for electrical insulation - Part 3: Specifications for individual materials
GB/T 5654-2007 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tanδ) and d.c. resistivity
GB/T 6109.1-2008 Enamelled round winding wire - Part 1: General requirements
GB/T 7095.1-2008 Enamelled rectangular copper winding wires - Part 1: General requirements
GB/T 7113.2-2014 Flexible insulating sleeving - Part 2: Methods of test
GB/T 7124-2008 Adhesives - Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies
GB/T 7304-2014 Standard test method for acid number of petroleum products by potentiometric titration
GB/T 11021-2014 Electrical insulation - Thermal evaluation and designation
GB/T 11026.4-2012 Electrical insulating materials - Thermal endurance properties - Part 4: Aging ovens - Single-chamber ovens
GB/T 11028-1999 Test methods for the determination of bond strength of impregnating agents to an enamelled wire substrate
GB/T 15022.2-2017 Resin based reactive compounds used for electrical insulation - Part 2: Methods of test
GB/T 17948.1-2018 Rotating electrical machines - Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
GB/T 17948.3-2017 Rotating electrical machines - Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
GB/T 17948.7-2016 Rotating electrical machines - Functional evaluation of insulation systems - General guidelines
GB/T 18488.1-2015 Drive motor system for electric vehicles - Part 1: Specification
GB/T 20112-2015 Evaluation and qualification of electrical insulation systems
GB/T 20139.1-2016 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system(EIS) - Part 1: Wire-wound winding EIS
GB/T 20139.2-2017 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system(EIS) - Part 2:Form-wound winding EIS
GB/T 20629.2-2013 Non-cellulosic paper for electrical purposes - Part 2: Methods of test
GB/T 20629.3-2019 Non-cellulosic papers for electrical purposes - Part 3: Unfilled aramid (aromatic polyamide) papers
GB/T 20631.2-2006 Pressure sensitive adhesive tapes for electrical purposes - Part 2: Methods of test
GB/T 21707-2018 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors
GB/T 22472-2008 Tests for flammability of plastic materials for parts in devices and appliances
GB/T 22720.1-2017 Rotating electrical machines - Qualification and quality control tests of partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters
GB/T 22720.2-2019 Rotating electrical machines - Qualification tests for the partial discharge resistant electrical insulation systems (Type Ⅱ) used in rotating electrical machines fed from voltage converters
GB/T 28046.3-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 3: Mechanical loads
GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 4: Climatic loads
GB/T 31838.2-2019 Solid insulating materials - Dielectric and resistive properties - Part 2: Resistive properties (DC methods) - Volume resistance and volume resistivity
JB/T 10508-2020 Slot wedges used in small and middle size electric machines - Specification
NB/SH/T 6042-2021 Lubricant oil for electric vehicle reducer
ASTM D6304-20: 2020 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.25 and GB/T 18488.1 and the following apply.
3.1
electrical insulating material
solid or liquid material, or a simple combination of such materials, having a negligibly low electrical conductivity, used to separate conductive parts at different potentials in electrical equipment
[Source: GB/T 11021-2014, 3.1]
3.2
insulation system
insulating material, or an assembly of insulation materials, to be considered in relation to associated conducting parts, as applied to a particular type or size, or part of electrical equipment
[Source: GB/T 2900.25-2008, 3.9]
3.3
coil
physical assembly of one or more electrical coil sections generally surrounded by common insulation
[Source: GB/T 2900.25-2008, 3.8]
3.4
random wound winding
winding in which the individual conductors occupy random positions in the coil side
[Source: GB/T 2900.25-2008, 3.8]
3.5
form-wound winding
regular winding consisting of coils which are given their shape before being assembled into the machine
[Source: GB/T 2900.25-2008, 3.8]
3.6
test object
unit being tested
[Source: GB/T 17948.7-2016, 3.2.1]
3.7
test specimen
individual component within a test object which can be used to generate one piece of test data (e.g. time to failure)
[Source: GB/T 17948.7-2016, 3.2.2]
3.8
thermal class
maximum continuous service temperature (in degrees Celsius) corresponding to the insulation system
[Source: GB/T 11021-2014, 3.1]
3.9
type I insulation systems
insulation system that is not subject to partial discharge during its life for frequency converter powered motor
Contents of T/CEEIA 415-2023
Contents
Foreword i
Introduction iii
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
Annex A (Normative) Preparation of sealed containers
Annex B (Normative) Winding model coil
Annex C (Informative) Calculation of the water content in gearbox oil under sealed conditions
Annex D (Informative) Testing of gearbox oil
Annex E (Informative) Impulse voltage insulation class (IVIC)
Annex F (Informative) Dual-temperature test method for thermal evaluation of insulation systems
Bibliography
Figure 1 Schematic diagram of the bipolar symmetric square wave
Figure 2 Example of a rapid temperature change test cycle
Figure 3 Temperature cycle curve for the diagnostic test
Figure A.1 Schematic diagram of the sealed tube
Figure A.2 Schematic diagram of recommended dimensions of the sealed container
Figure B.1 Test specimen of random wound winding
Figure B.2 Test specimen of form-wound winding
Figure B.3 Examples of test objects
Figure C.1 Schematic diagram under sealed conditions
Figure C.2 Relationship between initial water content and actual water content in the liquid phase
Figure D.1 Water content
Figure D.2 Acid value
Figure D.3 Volume resistivity at 25°C
Figure D.4 Volume resistivity at 90°C
Figure D.5 Breakdown voltage
Figure D.6 Dielectric dissipation factor at 25°C
Figure D.7 Dielectric dissipation factor at 90°C
Figure E.1 Qualification test procedure for type I insulation systems
Figure E.2 Qualification test procedure for type II insulation systems
Figure E.3 Circuit diagram of a driving motor/inverter system of a new energy vehicle
Figure E.4 Circuit diagram of an industrial variable-frequency motor/inverter system
Figure F.1 Schematic diagram of the dual-temperature thermal evaluation test system
Figure F.2 Schematic diagram of the aging chamber
Table 1 General requirements for magnet wires
Table 2 Life of enamelled round copper wire under high-frequency impulse voltage
Table 3 Life of enamelled rectangular copper wire under high frequency impulse power supply
Table 4 Oil resistance of insulation component materials for direct oil-cooled motors
Table 5 Flame-retardancy requirements for insulation component materials
Table 6 Waveform parameters for the high frequency impulse resistance test
Table 7 Power-frequency withstand voltage limits between driving motor windings to ground
Table 8 Interturn impulse test voltage limits
Table 9 Recommended aging temperatures and aging subcycle exposure times
Table 10 Test voltage
Table A.1 Dimensions of sealed containers
Table C.1 Regression equations for saturated water vapor density versus temperature
Table D.1 Recommended test items for gearbox oil
Table E.1 Maximum permissible operating voltage at machine terminals as a multiple of UN
Table E.2 IVIC classification for type II insulation systems
