CN110082651B - Motor stator wiring testing device and testing method - Google Patents
Motor stator wiring testing device and testing method Download PDFInfo
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- CN110082651B CN110082651B CN201910300691.XA CN201910300691A CN110082651B CN 110082651 B CN110082651 B CN 110082651B CN 201910300691 A CN201910300691 A CN 201910300691A CN 110082651 B CN110082651 B CN 110082651B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a motor stator wiring test device and a test method, the device comprises a high voltage device, a power amplifier, a signal acquisition module, a preprocessing module, a signal analysis module and a CPU, wherein the high voltage device is connected with the power amplifier, the signal acquisition module acquires signals in a high voltage device test loop and transmits the signals to the preprocessing module, the preprocessing module is connected with the CPU through the signal analysis module, and the CPU outputs the signals to a human-computer interface; the high-voltage device is connected with the stator wire harness through the high-voltage wire harness, and the high-voltage device is connected with the stator iron core through the current return line.
Description
Technical Field
The invention relates to a motor stator wiring testing device and method.
Background
In the production process of the motor stator, due to the problems of the production process and the like, the condition that a stator core is abnormally contacted with an enameled wire copper wire of a stator wiring harness occasionally occurs, and the condition is regarded as that stator lapping occurs. The motor detection method is a serious quality problem, accidents such as motor burnout are easily caused, at present, many enterprises can only use artificial naked eyes to detect at the present stage, the detection efficiency is low, and the detection quality cannot be guaranteed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a motor stator lapping test device and a test method, so as to achieve the purpose of accurate and quick test.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a motor stator wiring test device comprises a high-voltage device, a power amplifier, a signal acquisition module, a preprocessing module, a signal analysis module and a CPU, wherein the high-voltage device is connected with the power amplifier, the signal acquisition module acquires signals in a high-voltage device test loop and transmits the signals to the preprocessing module, the preprocessing module is connected with the CPU through the signal analysis module, and the CPU outputs the signals to a human-computer interface; the high-voltage device is connected with the stator wire harness through the high-voltage wire harness, and the high-voltage device is connected with the stator iron core through the current return line.
A motor stator wiring test method adopts the motor stator wiring test device, during testing, a high-voltage device is connected with a stator wiring harness through a high-voltage wiring harness and is connected with a stator iron core through a current return line, then high voltage is generated in the device and is transmitted to the stator wiring harness, finally the high voltage is applied to a stator wiring package, generated discharge current returns to a high-voltage device through the current return line, ARC ARC information is collected through a signal collection module in the device, the collected information is processed and analyzed through a preprocessing module and a signal analysis module and then is transmitted to a CPU, calculation is carried out in the CPU, calculation results are calibrated, the judgment is unqualified when the calculation results exceed standards, and the judgment is qualified if the calculation results do not exceed the standards, and the results are displayed on a human-computer interface.
Through the technical scheme, the working principle of the motor stator wiring testing device and the testing method provided by the invention is as follows: between two conductors with insulating layers, which are close to each other, there is a certain probability of discharge as the voltage difference increases, and it is inversely proportional to the distance between the conductors. When discharging happens, a sudden change discharging current signal is generated, the device tests the discharging current signal generated between the high-voltage device and the stator wire harness and between the high-voltage device and the stator iron core, the discharging current signal is preprocessed through the filtering amplification adjusting circuit, then the lapping condition of the enameled wire and the stator iron core is calculated through analog-digital signal conversion and the high-speed ARM chip, and the state whether the tested product is lapped or not is displayed through a human-computer interface. The method is used for testing without changing the conventional testing wiring, and is high in testing efficiency and high in accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic view of a motor stator wiring testing device disclosed in an embodiment of the present invention.
In the figure, 1, a stator harness; 2. a stator core; 3. a high voltage wire harness; 4. a current return line.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a motor stator wiring testing device and a testing method, as shown in figure 1, the device and the method are high in testing efficiency and accuracy and have good application prospects.
The motor stator wiring testing device shown in fig. 1 comprises a high-voltage device, a power amplifier, a signal acquisition module, a preprocessing module, a signal analysis module and a CPU, wherein the high-voltage device is connected with the power amplifier, the signal acquisition module acquires signals in a high-voltage device testing loop and transmits the signals to the preprocessing module, the preprocessing module is connected with the CPU through the signal analysis module, and the CPU outputs the signals to a human-computer interface; the high-voltage device is connected with the stator wire harness 1 through a high-voltage wire harness 3, and is connected with the stator core 2 through a current return line 4.
A motor stator wiring test method adopts the motor stator wiring test device, during testing, a high-voltage device is connected with a stator wiring harness 1 through a high-voltage wiring harness 3 and connected with a stator iron core 2 through a current return line 4, then high voltage is generated in the device and transmitted to the stator wiring harness, finally the high voltage is applied to a stator wire packet, generated discharge current returns to a high-voltage device through the current return line, ARC ARC information is collected through a signal collection module in the device, then the collected information is processed and analyzed through a preprocessing module and a signal analysis module and then transmitted to a CPU, calculation is carried out in the CPU, calculation results are calibrated, if the calculation results exceed standards, the judgment result is unqualified, if the judgment result is not qualified, the calculation results are displayed on a human-machine interface.
The signal acquisition module in the device also has the following test functions, including test modules such as I/O, OUT, LCR, IW, DCR, PWR, ACW, AMP and the like. After each hardware module is tested, the test data are stored and uploaded to the A8 module for analysis, the A8 is used for effectively analyzing the test data, and the judgment of wiring can be obtained through effective analysis of the ARC data of the withstand voltage ARC. The ARC detection system contains a high pass filter circuit that collects the high frequency signal. The generation of the arc requires a high voltage, and the apparatus detects the arc during the output of the ac withstand voltage. Therefore, in the voltage-resisting process, the quality can be judged according to the leakage current and the electric arc.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A motor stator wiring test method is adopted, and the motor stator wiring test device is characterized by comprising a high voltage device, a power amplifier, a signal acquisition module, a preprocessing module, a signal analysis module and a CPU (central processing unit), wherein the high voltage device is connected with the power amplifier, the signal acquisition module acquires signals in a high voltage device test loop and transmits the signals to the preprocessing module, the preprocessing module is connected with the CPU through the signal analysis module, and the CPU outputs the signals to a human-computer interface; the high-voltage device is connected with the stator wire harness through a high-voltage wire harness, and is connected with the stator iron core through a current return line;
during testing, a high-voltage device is connected with a stator wire harness through a high-voltage wire harness and is connected with a stator iron core through a current return line, then high voltage is generated in the device and transmitted to the stator wire harness, the high voltage is finally applied to a stator wire package, generated discharge current returns to the high-voltage device through the current return line, ARC ARC information is collected by a signal collection module in the device, the collected information is processed and analyzed by a preprocessing module and a signal analysis module and then transmitted to a CPU, calculation is carried out in the CPU, a calculation result is calibrated, if the calculation result exceeds a standard, the judgment result is unqualified, if the calculation result does not exceed the standard, the judgment result is qualified, and the result is displayed on a human-computer interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910300691.XA CN110082651B (en) | 2019-04-15 | 2019-04-15 | Motor stator wiring testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910300691.XA CN110082651B (en) | 2019-04-15 | 2019-04-15 | Motor stator wiring testing device and testing method |
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| CN110082651A CN110082651A (en) | 2019-08-02 |
| CN110082651B true CN110082651B (en) | 2021-11-19 |
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| CN201910300691.XA Active CN110082651B (en) | 2019-04-15 | 2019-04-15 | Motor stator wiring testing device and testing method |
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Citations (5)
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| CN1165560A (en) * | 1995-09-14 | 1997-11-19 | Abb研究有限公司 | Device for sensing of electric discharges in a test object |
| CN1329253A (en) * | 2001-04-30 | 2002-01-02 | 宝山钢铁股份有限公司 | High-voltage fault discharge on-line monitoring system |
| JP2005069745A (en) * | 2003-08-21 | 2005-03-17 | Toyota Motor Corp | Method and apparatus for locating insulation failure of stator |
| CN105093084A (en) * | 2015-09-07 | 2015-11-25 | 湖南银河天涛科技有限公司 | Partial discharge automatic testing device |
| CN106970326A (en) * | 2017-04-27 | 2017-07-21 | 哈尔滨理工大学 | The stator core breakdown judge TT＆C system and determination methods of small and special electric machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006058166A (en) * | 2004-08-20 | 2006-03-02 | Toshiba Corp | Partial discharge detecting unit and detecting method for rotary electrical equipment |
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2019
- 2019-04-15 CN CN201910300691.XA patent/CN110082651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1165560A (en) * | 1995-09-14 | 1997-11-19 | Abb研究有限公司 | Device for sensing of electric discharges in a test object |
| CN1329253A (en) * | 2001-04-30 | 2002-01-02 | 宝山钢铁股份有限公司 | High-voltage fault discharge on-line monitoring system |
| JP2005069745A (en) * | 2003-08-21 | 2005-03-17 | Toyota Motor Corp | Method and apparatus for locating insulation failure of stator |
| CN105093084A (en) * | 2015-09-07 | 2015-11-25 | 湖南银河天涛科技有限公司 | Partial discharge automatic testing device |
| CN106970326A (en) * | 2017-04-27 | 2017-07-21 | 哈尔滨理工大学 | The stator core breakdown judge TT＆C system and determination methods of small and special electric machine |
Non-Patent Citations (1)
| Title |
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| 大型发电机定子绕组绝缘性能影响因素;葛臣忠;《大电机技术》;20140515;第35-40页 * |
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