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GB/T 12665-1990   Requirements of damp-heat testing of electrical machine for service in general environmental condition (English Version)
Standard No.: GB/T 12665-1990 Status:superseded remind me the status change

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Implemented on:1991-10-1 Delivery: via email in 1 business day
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Standard No.: GB/T 12665-1990
English Name: Requirements of damp-heat testing of electrical machine for service in general environmental condition
Chinese Name: 电机在一般环境条件下使用的湿热试验要求
Professional Classification: GB    National Standard
Issued by: China State Bureau of Technical Supervision
Issued on: 1990-12-28
Implemented on: 1991-10-1
Status: superseded
Superseded by:GB/T 12665-2008 Requirements of damp-heat testing of electrical machine for service in general environmental condition
Superseded on:2009-3-1
Language: English
File Format: PDF
Word Count: 3000 words
Price(USD): 264.0
Delivery: via email in 1 business day
1 Subject Content and Application Scope This standard specifies the humid heat test method, technical requirements and inspection rules of the rotating electrical machine for service in general environmental condition. This standard is applicable to all kinds of rotating electrical machines (except mini-type control machine, hereinafter referred to as electrical machine). According to GB 755, the electrical machines in the environment where the relative humidity of service environment is: the average relative humidity in the wettest months is 90% and the average minimal temperature in that month is not higher than 25℃ shall meet the requirements of this standard. 2 Normative References GB 755 "General Requirements for Rotating Electrical Machines" GB 2423.3 "Basic Environmental Testing Procedures for Electric and Electronic Products--Test Ca: Damp Heat, Steady State" GB 2423.4 "Basic Environmental Testing Procedures for Electric and Electronic Products --Test Db: Damp Heat, Cyclic" GB 5170.5 "Inspection Methods for Basic Parameters of Environmental Testing Equipments for Electric and Electronic Products-Constant Damp Heat Testing Equipments" GB 5170.6 "Inspection Methods for Basic Parameters of Environmental Testing Equipments for Electric and Electronic Products-Cyclic Damp Heat Testing Equipments" 3 Test Methods 3.1 Preparation before the test 3.1.1 Test facilities and equipments Damp heat test chamber (box) shall meet the requirements of GB 5170.6 or GB 5170.5. The voltage grade of tramegger measuring the insulation resistance shall be in accordance with those specified in Table 1. When the spare parts are tested by using tramegger, if it is difficult to judge whether the spare parts are qualified or not due to the limit of measuring range, then the high insulation resistance tester shall be adopted for measuring. Table 1 V Rated voltage of electrical machine Operating voltage of tramegger ≤36 >36~500 >500~1000 >1000 250 500 1000 2500 3.1.2 Sample requirements When the spare parts of the large electrical machine are tested, the measurement electrodes for high tension stator coil and DC electrical machine compensation coil shall adopt the aluminium foils, the coil with slot insulation and dipping paint shall be made into simulated slot and the aluminium foil electrode length shall be identical with the actual core length generally. If limited by the product dimension, the smaller simulating units with identical material, insulation structure and process may be adopted for the test. 3.1.3 Sample pretreatment conditions Before damp heat test, the sample shall be placed in the damp heat test chamber (box) for preheating treatment at 25℃~35℃ for not less than 8h since the temperature of the chamber (box) reaches 25℃. 3.2 Damp heat test method Generally, the damp heat test shall be carried out according to the 40℃ cyclic damp heat test method, the conditions of every period shall be in accordance with GB 2423.4, the provisions on 40℃ cyclic damp heat test are shown in Figure 1 and the test shall be carried out for 6 periods. The damp heat test of electrical machine shall adopt the sample with indistinct respiration effect, and the relative humidity in temperature drop stage may not be less than 85% (shown in dotted lines). If necessary, the products of relevant specialties may also be carried out with the damp heat test according to GB 2423.3 and the constant damp heat test method under the conditions of 40±2℃, 90%~95% and 48h.
Contents 1 Subject Content and Application Scope 2 Normative References 3 Test Methods 4 Technical Requirements 5 Inspection Rules Additional Explanations:
Referred in GB/T 12665-1990:
*GB 755-2008 Rotating Electrical Machines - Rating and Performance
*GB2423.3-2006 Environmental testing for electric and electronic products - Part 2: Testing method test Cab: Damp heat, Steady state
*GB 2423.4-1981
*GB 5170.5-1985
*GB 5170.6-1985
GB/T 12665-1990 is referred in:
* GB/T 5171-2002 General technical requirements for small power motors
* GB/T 5171-2002 General technical requirements for small power motors
* JB/T 8680-2008 Specification for Y2 series(IP54)three-phase asynchronous motor(Frame size 63~355)
* JB/T 10447-2004 Specification for Y3 Series (IP55) Three-Phase Induction Motor (Frame Size 63~355)
* JB/T 5269-2007 Specification for YR3 series (IP23) Three-phase Asynchronous Motor (frame size 160~355)
* JB/T 8680-2008 Specification for Y2 series(IP54)three-phase asynchronous motor(Frame size 63~355)
* JB/T 10447-2004 Specification for Y3 Series (IP55) Three-Phase Induction Motor (Frame Size 63~355)
* GB/T 18488.1-2006 The electrical machines and controllers for electric vehicles - Part 1: General specification
* GB/T 18488.1-2006 The electrical machines and controllers for electric vehicles - Part 1: General specification
* GB/T 18488.2-2006 The electrical machines and controllers for electric vehicles - Part 2: Test methods
* JB/T 1009-2007 Specification for YS series three-phase asynchronous motors
* JB/T 1010-2007 Specification for YU series resistance start asynchronous motors
* JB/T 1011-2007 Specification for YC series capacitor-start asynchronous motors
* JB/T 1012-2007 Specification for YY series permanent-split capacitor asynchronous motors
* JB/T 6316-2006 Specification for series Z4 direct current motor (frame sizes 100~450)
* JB/T 5330-2007 Specification for vibrating three-phase asynchronous motors (exciting force 0.6kN~210kN)
*GB/T 19071.1-2003 Asynchronous generator for wind turbine generator systems—Part 1:Technical condition
*GB/T 19071.2-2003 Asynchronous generator for wind turbine generator systems—Part 2:Test method
Code of China
Standard
GB/T 12665-1990  Requirements of damp-heat testing of electrical machine for service in general environmental condition (English Version)
Standard No.GB/T 12665-1990
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count3000 words
Price(USD)264.0
Implemented on1991-10-1
Deliveryvia email in 1 business day
Detail of GB/T 12665-1990
Standard No.
GB/T 12665-1990
English Name
Requirements of damp-heat testing of electrical machine for service in general environmental condition
Chinese Name
电机在一般环境条件下使用的湿热试验要求
Chinese Classification
Professional Classification
GB
ICS Classification
Issued by
China State Bureau of Technical Supervision
Issued on
1990-12-28
Implemented on
1991-10-1
Status
superseded
Superseded by
GB/T 12665-2008 Requirements of damp-heat testing of electrical machine for service in general environmental condition
Superseded on
2009-3-1
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
3000 words
Price(USD)
264.0
Keywords
GB/T 12665-1990, GB 12665-1990, GBT 12665-1990, GB/T12665-1990, GB/T 12665, GB/T12665, GB12665-1990, GB 12665, GB12665, GBT12665-1990, GBT 12665, GBT12665
Introduction of GB/T 12665-1990
1 Subject Content and Application Scope This standard specifies the humid heat test method, technical requirements and inspection rules of the rotating electrical machine for service in general environmental condition. This standard is applicable to all kinds of rotating electrical machines (except mini-type control machine, hereinafter referred to as electrical machine). According to GB 755, the electrical machines in the environment where the relative humidity of service environment is: the average relative humidity in the wettest months is 90% and the average minimal temperature in that month is not higher than 25℃ shall meet the requirements of this standard. 2 Normative References GB 755 "General Requirements for Rotating Electrical Machines" GB 2423.3 "Basic Environmental Testing Procedures for Electric and Electronic Products--Test Ca: Damp Heat, Steady State" GB 2423.4 "Basic Environmental Testing Procedures for Electric and Electronic Products --Test Db: Damp Heat, Cyclic" GB 5170.5 "Inspection Methods for Basic Parameters of Environmental Testing Equipments for Electric and Electronic Products-Constant Damp Heat Testing Equipments" GB 5170.6 "Inspection Methods for Basic Parameters of Environmental Testing Equipments for Electric and Electronic Products-Cyclic Damp Heat Testing Equipments" 3 Test Methods 3.1 Preparation before the test 3.1.1 Test facilities and equipments Damp heat test chamber (box) shall meet the requirements of GB 5170.6 or GB 5170.5. The voltage grade of tramegger measuring the insulation resistance shall be in accordance with those specified in Table 1. When the spare parts are tested by using tramegger, if it is difficult to judge whether the spare parts are qualified or not due to the limit of measuring range, then the high insulation resistance tester shall be adopted for measuring. Table 1 V Rated voltage of electrical machine Operating voltage of tramegger ≤36 >36~500 >500~1000 >1000 250 500 1000 2500 3.1.2 Sample requirements When the spare parts of the large electrical machine are tested, the measurement electrodes for high tension stator coil and DC electrical machine compensation coil shall adopt the aluminium foils, the coil with slot insulation and dipping paint shall be made into simulated slot and the aluminium foil electrode length shall be identical with the actual core length generally. If limited by the product dimension, the smaller simulating units with identical material, insulation structure and process may be adopted for the test. 3.1.3 Sample pretreatment conditions Before damp heat test, the sample shall be placed in the damp heat test chamber (box) for preheating treatment at 25℃~35℃ for not less than 8h since the temperature of the chamber (box) reaches 25℃. 3.2 Damp heat test method Generally, the damp heat test shall be carried out according to the 40℃ cyclic damp heat test method, the conditions of every period shall be in accordance with GB 2423.4, the provisions on 40℃ cyclic damp heat test are shown in Figure 1 and the test shall be carried out for 6 periods. The damp heat test of electrical machine shall adopt the sample with indistinct respiration effect, and the relative humidity in temperature drop stage may not be less than 85% (shown in dotted lines). If necessary, the products of relevant specialties may also be carried out with the damp heat test according to GB 2423.3 and the constant damp heat test method under the conditions of 40±2℃, 90%~95% and 48h.
Contents of GB/T 12665-1990
Contents 1 Subject Content and Application Scope 2 Normative References 3 Test Methods 4 Technical Requirements 5 Inspection Rules Additional Explanations:
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Keywords:
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