CN109031122A - A kind of asynchronous motor stator is around set detecting device - Google Patents
A kind of asynchronous motor stator is around set detecting device Download PDFInfo
- Publication number
- CN109031122A CN109031122A CN201811066670.8A CN201811066670A CN109031122A CN 109031122 A CN109031122 A CN 109031122A CN 201811066670 A CN201811066670 A CN 201811066670A CN 109031122 A CN109031122 A CN 109031122A
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- Prior art keywords
- motor
- jdb
- protective device
- stator winding
- asynchronous motor
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- 238000004804 winding Methods 0.000 claims abstract description 36
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 230000009466 transformation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- G01R31/34—Testing dynamo-electric machines
-
- 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
- G01R31/72—Testing of electric windings
Abstract
The invention discloses a kind of asynchronous motor stators around set detecting device; it is characterized in that; including power supply, JDB protective device and motor; situations such as motor is electrically connected the power supply by the JDB protective device, and the JDB protective device is used to detect short circuit between the route of the motor interior, overcurrent, electric leakage；The JDB protective device is added by the normal circuit of the stator winding described in asynchronous motor; whether the stator winding described in the motor is normally carried out detection; the problem of safety in production bring hidden danger such as burn out so as to avoid the power supply short circuit, the stator winding that occur when assembling trial operation; the JDB protective device carries out the stator winding detection to motor described in the large and small asynchronous motor, Wound-rotor type; and it is safe and efficient; prevented repairing motor appearance interconnector mistake, caused by a variety of materials waste situation.
Description
Technical field
The invention belongs to motor technology fields more particularly to a kind of asynchronous motor stator around set detecting device.
Background technique
Induction conductivity is also known as " asynchronous motor ", i.e., rotor is placed in rotating excitation field, under the action of rotating excitation field, is obtained
A rotating torque is obtained, thus rotor rotates, it is usually in mouse cage shape that rotor is rotatable conductor more, and stator is in motor
The part not rotated, main task are to generate rotating excitation field, rotating excitation field be not mechanically realize, but with
Alternating current passes through in several pairs of electromagnet, makes its magnetic pole property varying cyclically, therefore is equivalent to the magnetic field of a rotation, this motor
Unlike dc motor has brush or collector ring, the type according to alternating current used has single-phase motor and threephase motor,
Single-phase motor is used in such as washing machine, electric fan etc.；Threephase motor is then used as the power-equipment of factory.
Asynchronous motor currently on the market is to see not from surface when turn-to-turn, phase fault occurs in motor stator winding
Out, when being passed through voltage rating trial operation, easily there is power supply short circuit situation, after motor stator winding is fixed, often go out
Now internal connection error situation after being invaded paint drying, assembles trial operation when not knowing, power supply short circuit also easily occurs, determines
Sub- winding burns out situation, causes waste of material, and working efficiency is low, brings hidden danger to safety in production.
Summary of the invention
The present invention provides a kind of asynchronous motor stator around set detecting device, it is intended to solve asynchronous motor and work as motor stator
It when turn-to-turn, phase fault occurs in winding, can't see from surface, when being passed through voltage rating trial operation, power supply easily occur
Often there is internal connection error situation and are invaded paint when not knowing after motor stator winding is fixed in short-circuit conditions
After drying, trial operation being assembled, also power supply short circuit easily occurs, stator winding burns out situation, causes waste of material, working efficiency is low,
The problem of bringing hidden danger to safety in production.
The invention is realized in this way a kind of asynchronous motor stator is around set detecting device, which is characterized in that including electricity
Source, JDB protective device and motor, the motor are electrically connected the power supply, the JDB by the JDB protective device
Protective device is used to detect situations such as short circuit between the route of the motor interior, overcurrent, electric leakage, the JDB protective device
Including master control contactor CJ and measure loop, the master control contactor CJ is connected with the measure loop, described for connecting
Measure loop tests the measure loop to the motor using safe voltage, determines that motor whether there is problem,
The motor includes stator winding, and the stator winding is rotated for cooperating stator to generate magnetic field.
Preferably, the measure loop includes transformer A, and the transformer A is used to normal voltage being adjusted to three-phase 36V
Exchange safe voltage.
Preferably, the measure loop further includes ammeter, and there are three the ammeter settings, respectively A1, A2 and A3.
Preferably, whether the transformer A is connected with the ammeter, balance between each voltage for detecting.
Preferably, when uneven between described ammeter A1, A2 and A3, then there is interconnector mistake in the stator winding
Mistake, turn-to-turn, phase fault.
Preferably, further include transformer B, the transformer B be located at the master control contactor CJ and the measure loop it
Between, it is used to provide the described the working voltage of JDB protective device.
Compared with prior art, the beneficial effects of the present invention are: a kind of asynchronous motor stator winding of the invention detects
Device adds the JDB protective device by the normal circuit of the stator winding described in asynchronous motor, the motor
Whether the stator winding is normally carried out detection, the power supply short circuit, described fixed occurred when so as to avoid assembling trial operation
Sub- winding such as burns out at the problem of that safety in production bring hidden danger, and the JDB protective device is to the large and small asynchronous motor, coiling
Motor described in formula carries out the stator winding detection, and safe and efficient, and the interconnector for having prevented repairing motor appearance is wrong
Accidentally, a variety of materials caused by waste situation.
Detailed description of the invention
Fig. 1 is integrated circuit schematic diagram of the invention；
Fig. 2 is JDB protective device circuit diagram of the invention；
Fig. 3 is detection circuit schematic diagram of the invention；
In figure: 1- power supply, 2-JDB protective device, 21- master control contactor CJ, 22- measure loop, 221- transformer A,
222- ammeter, 3- motor, 31- stator winding.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Please refer to Fig. 1-3, the present invention provides a kind of technical solution: a kind of asynchronous motor stator around set detecting device,
It is characterized in that, including power supply 1, JDB protective device 2 and motor 3, motor 3 is electrically connected power supply by JDB protective device 2
1, JDB protective device 2 is used to detect situations such as short circuit between the route inside motor 3, overcurrent, electric leakage, JDB protective device 2
Including master control contactor CJ21 and measure loop 22, master control contactor CJ21 is connected with measure loop 22, for connecting detection
Circuit 22 tests measure loop 22 to motor 3 using safe voltage, determines motor with the presence or absence of problem, motor 3
Including stator winding 31, stator winding 31 is rotated for cooperating stator to generate magnetic field.
In the present embodiment, by increasing JDB protective device 2 in major loop, when appearance short circuit, overcurrent, electric leakage
When, master control contactor CJ21 discharges automatically, and measure loop 22 provides three-phase 36V exchange safe voltage to electricity using transformer A221
3 stator winding 31 of motivation is tested, when there is interconnector mistake, turn-to-turn, phase fault in motor stator winding 31, electric current
Table 222A1~A3 be it is unbalanced, according to detection case, can determine motor stator winding 31 with the presence or absence of problem, to keep away
The problem of safety in production such as the power supply 1 for having exempted to occur when assembling trial operation is short-circuit, stator winding 31 is burnt out bring hidden danger.
Further, measure loop 22 includes transformer A221, and transformer A221 is used to normal voltage being adjusted to three-phase
36V exchanges safe voltage.
In the present embodiment, by the way that transformer A221 is arranged, normal 220v voltage is adjusted to three that side examination needs
Phase 36v exchanges safe voltage, is that substantially voltage causes the damage of motor 3 in order to prevent using low voltage test.
Further, measure loop 22 further includes ammeter 222, and there are three the settings of ammeter 222, respectively A1, A2 and
A3。
In the present embodiment, by three ammeters 222 of setting, the electric current of stator winding 31 can be detected,
When three 222 numerical value differences of ammeter, stator winding 31 goes wrong, when three 222 numerical value of ammeter are identical, stator winding
31 is normal.
Further, whether transformer A221 is connected with ammeter 222, balance between each voltage for detecting；Electricity
When uneven between flow table 222A1, A2 and A3, then there is interconnector mistake, turn-to-turn, phase fault in stator winding 31.
In the present embodiment, it is imported into motor 3 by the 36v three-phase alternating voltage for adjusting transformer A221,
The electricity of test is provided for motor 3, the stator winding 31 inside motor 3 is tested in test the lower of electricity, works as stator
When interconnector mistake, turn-to-turn, phase fault occurs in winding 31, the numerical value between three ammeters 222 will be uneven, when fixed
When sub- winding 31 is normal, the numerical value between three ammeters 222 will be identical.
It further, further include transformer B, transformer B is used between master control contactor CJ21 and measure loop 22
The working voltage of JDB protective device 2 is provided.
In the present embodiment, by the way that transformer B is arranged, suitable voltage can be provided for JDB protective device 2, guaranteed
The normal operation of JDB protective device 2, to guarantee that entire detection device carries out real-time guard to the stator winding 31 of motor 3.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of asynchronous motor stator is around set detecting device, which is characterized in that including power supply, JDB protective device and motor,
The motor is electrically connected the power supply by the JDB protective device, and the JDB protective device is described electronic for detecting
Between route inside machine situations such as short circuit, overcurrent, electric leakage, the JDB protective device includes master control contactor CJ and detects back
Road, the master control contactor CJ are connected with the measure loop, for connecting the measure loop, make the measure loop benefit
The motor is tested with safe voltage, determines motor with the presence or absence of problem, the motor includes stator winding, institute
Stator winding is stated to be rotated for cooperating stator to generate magnetic field.
2. a kind of asynchronous motor stator as described in claim 1 is around set detecting device, which is characterized in that the measure loop
Including transformer A, the transformer A is used to for normal voltage being adjusted to three-phase 36V exchange safe voltage.
3. a kind of asynchronous motor stator as described in claim 1 is around set detecting device, which is characterized in that the measure loop
It further include ammeter, there are three the ammeter settings, respectively A1、A2And A3。
4. a kind of asynchronous motor stator is around set detecting device as claimed in claim 2 or claim 3, which is characterized in that the transformation
Whether device A is connected with the ammeter, balance between each voltage for detecting.
5. a kind of asynchronous motor stator as claimed in claim 4 is around set detecting device, which is characterized in that the ammeter A1、
A2And A3Between it is uneven when, then there is interconnector mistake, turn-to-turn, phase fault in the stator winding.
6. a kind of asynchronous motor stator as described in claim 1 is around set detecting device, which is characterized in that further include transformer
B, the transformer B are used to provide the described JDB protective device between the master control contactor CJ and the measure loop
Working voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066670.8A CN109031122A (en) | 2018-09-13 | 2018-09-13 | A kind of asynchronous motor stator is around set detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066670.8A CN109031122A (en) | 2018-09-13 | 2018-09-13 | A kind of asynchronous motor stator is around set detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109031122A true CN109031122A (en) | 2018-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811066670.8A Pending CN109031122A (en) | 2018-09-13 | 2018-09-13 | A kind of asynchronous motor stator is around set detecting device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881664Y (en) * | 2006-02-17 | 2007-03-21 | 中国石油大学(北京) | Fault diagnosis device for asynchronous dynamo of beam pump |
| CN204065360U (en) * | 2014-08-03 | 2014-12-31 | 内蒙古北方重工业集团有限公司 | A kind of threephase asynchronous is test bed |
| CN107124124A (en) * | 2017-04-01 | 2017-09-01 | 苏州汇川联合动力系统有限公司 | A kind of motor threephase stator winding active shorting system and method |
| CN107271899A (en) * | 2017-06-23 | 2017-10-20 | 河北凯翔电气科技股份有限公司 | A kind of method of testing of many specification voltage generating sets |
| CN209460369U (en) * | 2018-09-13 | 2019-10-01 | 淮北矿业股份有限公司 | A kind of asynchronous motor stator is around set detecting device |
-
2018
- 2018-09-13 CN CN201811066670.8A patent/CN109031122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2881664Y (en) * | 2006-02-17 | 2007-03-21 | 中国石油大学(北京) | Fault diagnosis device for asynchronous dynamo of beam pump |
| CN204065360U (en) * | 2014-08-03 | 2014-12-31 | 内蒙古北方重工业集团有限公司 | A kind of threephase asynchronous is test bed |
| CN107124124A (en) * | 2017-04-01 | 2017-09-01 | 苏州汇川联合动力系统有限公司 | A kind of motor threephase stator winding active shorting system and method |
| CN107271899A (en) * | 2017-06-23 | 2017-10-20 | 河北凯翔电气科技股份有限公司 | A kind of method of testing of many specification voltage generating sets |
| CN209460369U (en) * | 2018-09-13 | 2019-10-01 | 淮北矿业股份有限公司 | A kind of asynchronous motor stator is around set detecting device |
Non-Patent Citations (1)
| Title |
|---|
| 顾永辉，范廷瓒: "《煤矿电工手册 修订本 第2分册 矿井供电 下》", vol. 1, 28 February 1999, 煤炭工业出版社, pages: 935 - 938 * |
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