CN201819974U - Comprehensive electrical performance test instrument for three-phase motor stator - Google Patents
Comprehensive electrical performance test instrument for three-phase motor stator Download PDFInfo
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- CN201819974U CN201819974U CN2010205290953U CN201020529095U CN201819974U CN 201819974 U CN201819974 U CN 201819974U CN 2010205290953 U CN2010205290953 U CN 2010205290953U CN 201020529095 U CN201020529095 U CN 201020529095U CN 201819974 U CN201819974 U CN 201819974U
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Abstract
A comprehensive electrical performance test instrument for a three-phase motor stator comprises an industrial computer and a measuring end; and the measuring end comprises a test switching unit, a DC resistance measuring unit, an insulating resistance measuring unit, a power frequency withstand voltage measuring unit and a turn-to-turn withstand voltage measuring unit. The comprehensive electrical performance test instrument is characterized in that the industrial computer is provided with the measuring end; the measuring end is electrically connected with the test switching unit; the input and the output interfaces of the test switching unit are respectively connected with the testing interfaces of the measuring units; and the measuring end of the industrial computer can switch the testing interfaces through the test switching unit automatically, so that all the measuring units can be connected. The utility model has the advantages that the test instrument adopts the industrial computer to control; all the measuring units are detected and controlled through a microprocessor in an intelligentized and digitized way; comprehensive test items of a single motor stator can be accomplished automatically only through one-time connection; and the testing result of each item can be analyzed and judged automatically, so that the detection efficiency and the automation degree can be improved.
Description
Technical field
The utility model relates to a kind of electrical equipment measuring equipment, particularly a kind of three-phase motor stator electrical property comprehensive test instrument.
Background technology
At present in the motor manufacturing, generally to adopt multiple devices to measure with direct current resistance, insulation resistance, power frequency proof voltage, the turn-to-turn proof voltage to 380V or 1140V and following middle-size and small-size three-phase alternating current machine stator in the prior art, giving to make with detection makes troubles, cause life cycle of the product to prolong, non-productive work increases.
Summary of the invention
The utility model provides a kind of three-phase motor stator electrical property comprehensive test instrument at the defective that exists in the prior art.This project is developed a kind of collection direct current resistance test, megger test, turn-to-turn withstand voltage test, power frequency withstand test are the three-phase motor stator electrical property comprehensive test equipment of one, system adopts the industrial computer master control, each detecting unit adopts microprocessor intelligenceization, digitizing to detect and control, pass through system controlling software, only need primary connection can finish the combined test project of separate unit motor stator automatically, automatically analyze, judge every test result, improved detection efficiency and automaticity.
The utility model mainly comprises: industrial computer, measuring junction, described measuring junction is by the test switch unit, one direct current resistance measuring unit, one insulation measurement unit, one power frequency proof voltage measuring unit, one turn-to-turn proof voltage measuring unit is formed, it is characterized in that industrial computer is provided with measuring junction, measuring junction is connected with test switch unit circuit, the test switch unit IO interface respectively with direct current resistance measuring unit test interface, insulation measurement unit testing interface, power frequency proof voltage measuring unit test interface, turn-to-turn proof voltage measuring unit test interface connects, the measuring junction of industrial computer is switch unit each test interface that automaticallyes switch after tested, realizes the linking between each test cell.
The utility model has the advantages that tester adopts industrial computer control, each detecting unit adopts microprocessor intelligenceization, digitizing to detect and control, pass through system controlling software, only need primary connection can finish the combined test project of separate unit motor stator automatically, automatically analyze, judge every test result, improved detection efficiency and automaticity.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, the utility model is applicable to direct current resistance, insulation resistance, the power frequency proof voltage of 380V or 1140V and following middle-size and small-size three-phase alternating current machine stator, the integral test system of turn-to-turn proof voltage.The utility model is a kind of collection direct current resistance test, megger test, turn-to-turn withstand voltage test, power frequency withstand test are the three-phase motor stator electrical property comprehensive test equipment of one, the utility model adopts industrial computer control, each detecting unit adopts microprocessor intelligenceization, digitizing to detect and control, switch through system controlling software, only need primary connection can finish the combined test project of separate unit motor stator automatically, automatically analyze, judge every test result, improved detection efficiency and automaticity.
The utility model is by industrial computer, measuring junction is formed, measuring junction is by the test switch unit, one direct current resistance measuring unit, one insulation measurement unit, one power frequency proof voltage measuring unit, one turn-to-turn proof voltage measuring unit is formed, industrial computer is provided with measuring junction, measuring junction is connected with test switch unit circuit, the test switch unit IO interface respectively with direct current resistance measuring unit test interface, insulation measurement unit testing interface, power frequency proof voltage measuring unit test interface, turn-to-turn proof voltage measuring unit test interface connects, the measuring junction of industrial computer is switch unit each test interface that automaticallyes switch after tested, realizes the linking between each test cell.The utility model can preset tested motor stator canonical parameter, only needs primary connection can finish whole test events of separate unit motor stator automatically, analyzes, judges every test result automatically.And function such as tool statistics, storage, printing.The Chinese operation interface, test event individual event or multinomial optional.
Used technology in each test event:
One, turn-to-turn proof voltage measuring unit adopts following technology:
1. adopt the A/D switch technology, realize the sampling rate of 100MHz, can accurately judge the turn-to-turn insulation situation (the highest 33MHz of being no more than of sample frequency of similar products at home and abroad) of various tested windings.
2. adopt the high capacity energy-storage capacitor, solve relevant anti-interference problem simultaneously, the energy of instrument instantaneous relase increases, and then enlarges sensing range (be present like product 3～10 times).
3. adopt the silicon-controlled device of high voltage withstanding big electric current to replace traditional thyratron, the poor stability of avoiding " inflation hydrogen brake pipe ", " oscillatron " etc. to cause fully, start is long preheating time, and the life-span is short, easy problem such as wear out.
Two, power frequency proof voltage detecting unit adopts following technology:
Standard parameter value adopts gamut arbitrary value setting and industrial computer to judge automatically, has solved in the common power frequency proof voltage test, and standard parameter value can only single-point or the limited multiple spot value defective that is provided with and judges.
Three, the insulation resistance detecting unit adopts following technology:
Adopt output test power circuit and brachium pontis test circuit, improved output test power source voltage characteristic, improved the stability and the measuring accuracy of test value.
Four, the direct current resistance detecting unit adopts following technology:
Adopt high-precision big electric current constant current source, improved the measuring accuracy of micro-ohm level direct current resistance.
Three-phase motor stator test event and important technological parameters:
Environment for use: 5 ℃-35 ℃ of temperature
Relative humidity is not more than 70%
The direct current resistance test:
Resistance measurement scope: 10m Ω-20k Ω automatic range conversion ± 0.5%
Test period 1-999s is adjustable continuously
Temperature conversion: the resistance value of current environmental temperature test can be converted into the value of standard temperature when being 25 ℃.
Measure between the end of winding respectively and alternate direct current resistance and calculating mean value.
Megger test:
Measuring voltage: 500V/1000V second gear
Measurement range: 0～200M Ω automatic range conversion ± 3%
Test period 1-999s is adjustable continuously
Measure the insulating resistance value between winding and the shell.
The turn-to-turn withstand voltage test:
Trial voltage: 0.3～3kVp or 0.3～6kVp are adjustable continuously ± and 5%
Detecting pattern: area compares, and frequency ratio
Respectively to carrying out the turn-to-turn withstand voltage test between winding and the winding
Power frequency withstand test:
Trial voltage: 0.3～3kV/AC or 0.5～5kV/AC are adjustable continuously ± and 5%
Alarm current: 1～500mA is adjustable continuously ± and 5%
Test period 1-9999s is adjustable continuously
Respectively to carrying out power frequency withstand test between winding and the shell.。
The utility model switches through system controlling software the project of being tested, and can carry out individual event or multinomial combination choosing folding, and multinomial combined test is by " direct current resistance--insulation resistance--turn-to-turn proof voltage--power frequency proof voltage " test sequence.
Claims (4)
1. three-phase motor stator electrical property comprehensive test instrument, comprise: industrial computer, measuring junction, described measuring junction is by the test switch unit, one direct current resistance measuring unit, one insulation measurement unit, one power frequency proof voltage measuring unit, one turn-to-turn proof voltage measuring unit is formed, it is characterized in that industrial computer is provided with measuring junction, measuring junction is connected with test switch unit circuit, the test switch unit IO interface respectively with direct current resistance measuring unit test interface, insulation measurement unit testing interface, power frequency proof voltage measuring unit test interface, turn-to-turn proof voltage measuring unit test interface connects, the measuring junction of industrial computer is switch unit each test interface that automaticallyes switch after tested, realizes the linking between each test cell.
2. three-phase motor stator electrical property comprehensive test instrument according to claim 1 is characterized in that the insulation measurement unit is output test power circuit and brachium pontis test circuit.
3. three-phase motor stator electrical property comprehensive test instrument according to claim 1 is characterized in that power frequency proof voltage measuring unit is that setting of gamut arbitrary value and industrial computer are judged automatically.
4. three-phase motor stator electrical property comprehensive test instrument according to claim 1, it is characterized in that turn-to-turn proof voltage measuring unit is with the rectification of high voltage withstanding big controlled current silicon device, turn-to-turn proof voltage detecting unit adopts the A/D switch technology, realizes the sampling rate of 100MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205290953U CN201819974U (en) | 2010-09-14 | 2010-09-14 | Comprehensive electrical performance test instrument for three-phase motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205290953U CN201819974U (en) | 2010-09-14 | 2010-09-14 | Comprehensive electrical performance test instrument for three-phase motor stator |
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| Publication Number | Publication Date |
|---|---|
| CN201819974U true CN201819974U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205290953U Expired - Lifetime CN201819974U (en) | 2010-09-14 | 2010-09-14 | Comprehensive electrical performance test instrument for three-phase motor stator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981107A (en) * | 2012-11-14 | 2013-03-20 | 苏州菱欧自动化设备有限公司 | Pressure-resistant and running-in detection device for motor |
| CN103675682A (en) * | 2013-12-31 | 2014-03-26 | 江门市竞晖电器实业有限公司 | Multi-station comprehensive test equipment used for detecting motor |
| CN104407297A (en) * | 2014-12-02 | 2015-03-11 | 上海电机系统节能工程技术研究中心有限公司 | Comprehensive multi-station fully-automatic motor stator testing device |
| CN104730371A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Testing method, circuit, device and system for household appliances |
| CN108872706A (en) * | 2017-05-09 | 2018-11-23 | 上海东缘机电设备有限公司 | The insulation of nuclear power station driving mechanism and direct resistance metering instrument |
| CN114089070A (en) * | 2021-11-18 | 2022-02-25 | 广东利元亨智能装备股份有限公司 | Formation cabinet detection device |
-
2010
- 2010-09-14 CN CN2010205290953U patent/CN201819974U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981107A (en) * | 2012-11-14 | 2013-03-20 | 苏州菱欧自动化设备有限公司 | Pressure-resistant and running-in detection device for motor |
| CN104730371A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Testing method, circuit, device and system for household appliances |
| CN104730371B (en) * | 2013-12-24 | 2018-04-17 | 珠海格力电器股份有限公司 | Testing method, circuit, device and system for household appliances |
| CN103675682A (en) * | 2013-12-31 | 2014-03-26 | 江门市竞晖电器实业有限公司 | Multi-station comprehensive test equipment used for detecting motor |
| CN103675682B (en) * | 2013-12-31 | 2016-08-17 | 江门市竞晖电器实业有限公司 | A kind of multistation integral test system for detecting motor |
| CN104407297A (en) * | 2014-12-02 | 2015-03-11 | 上海电机系统节能工程技术研究中心有限公司 | Comprehensive multi-station fully-automatic motor stator testing device |
| CN108872706A (en) * | 2017-05-09 | 2018-11-23 | 上海东缘机电设备有限公司 | The insulation of nuclear power station driving mechanism and direct resistance metering instrument |
| CN114089070A (en) * | 2021-11-18 | 2022-02-25 | 广东利元亨智能装备股份有限公司 | Formation cabinet detection device |
| CN114089070B (en) * | 2021-11-18 | 2023-11-07 | 广东利元亨智能装备股份有限公司 | Formation cabinet detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
|
| CX01 | Expiry of patent term |