CN2135774Y - Contactless tester for motor rotator temp. and trouble - Google Patents
Contactless tester for motor rotator temp. and trouble Download PDFInfo
- Publication number
- CN2135774Y CN2135774Y CN 92214248 CN92214248U CN2135774Y CN 2135774 Y CN2135774 Y CN 2135774Y CN 92214248 CN92214248 CN 92214248 CN 92214248 U CN92214248 U CN 92214248U CN 2135774 Y CN2135774 Y CN 2135774Y
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- China
- Prior art keywords
- widely different
- different road
- stationary part
- rotor
- rotating part
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- Expired - Fee Related
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Abstract
The utility model relates to a tester, which comprises a temperature rise and failure testing loop, an infrared emitting and receiving unit and a rotating part T of an SCM system which are arranged on the rotating side of a motor, and an infrared emitting and receiving unit, an SCM system and a stationary part S of a display part which are arranged on the static side of the motor. The SCM can carry out intellectual processes to signals, and encoded infrared rays are used as transmission mediums. Interferences from magnetic fields and visual light are effectively overcome. The temperature rise of a rotor can be accurately tested, and the insulation life and the safe operation of power plants can be raised. Faults and parameters of brushless excitation can be tested without contacts, and the extensive utilization of brushless machines can be promoted. The tester is also suitable for testing and controlling faults of parameters of rotating parts of other devices.
Description
A kind of synchronous electric motor rotor temperature rise and the contactless detector of fault, be applicable to parameter and fault detect and the brushless excitation half control bridge or the fully controlled bridge control of synchronous electric motor rotor temperature measurement and brushless excitation, also can be used for the parameter and the fault detect of miscellaneous equipment rotating part, and rotating part control.
The synchronous electric motor rotor temperature measurement mainly adopts the media that carbon brush one slip ring transmits as signal between rotation and the stationary part at present, and belonging to has the contact detection mode.Synchronous generator brushless excitation parameter and fault detection technique mainly contain following several at present: 1, carbon brush one slip ring has the contact to detect.2, magnetic test coil is set respectively in rotor and stator, analyzes the harmonic wave detection rotor winding failure of stator coil.3, use wireless system to transmit signal.4, magnetic test coil is set and combines the transmission signal with infrared light on rotor.Carbon brush one slip ring has the contact detection mode, complex structure, installation and maintenance difficulty.Harmonic wave detects and is indirect mode, and its sensing range is limited.The wireless system anti-interference is relatively poor.Establish magnetic test coil and the infrared light transmission aspect that combines on the rotor, only be used for the measure portion electrical quantity, both failed to be used for the measurement of the rotor temperature rise of non electrical quantity.
A kind of rotor temperature rise and fault locator that the purpose of this utility model provides, the signal transmission is not subjected to motor-field, surrounding magnetic field, the interference of visible light, guarantee the accuracy and the reliability of measurement, realized carrying out the detection problem of rotor non electrical quantity and multiple parameter simultaneously with this kind mode.
The utility model is realized in the following way:
Rotation and stationary part at synchronous motor are provided with the following units (1) microcomputer system (10 and 20) respectively, are used for detection information is carried out Intelligent treatment.(2) transmitter unit 11 and 21 of infrared light, infrared light receiving element 12 and 22, infrared light is mediated, and transmits the information between rotating part and the stationary part.(3) temperature of rotor is set on the rotor and detects widely different road 13, rotor winding earth fault (any or 2 ground connection) detects widely different road 15, and brushless excitation commutator tube open circuit, short trouble detect widely different road 14.In order to produce temperature of rotor, fault detect information.(4) the dress widely different road 16 of power supply and 26 on rotation, stationary part, stationary part packing temperature, fault display part 27.
Be described further below in conjunction with accompanying drawing:
Fig. 1 the utility model ultimate principle general diagram
Fig. 2 single chip microcomputer system schematic diagram (10,20) (abbreviation single-chip microcomputer)
The widely different road 13 of Fig. 3 temperature detection
Fig. 4 brushless excitation commutator tube open circuit, short trouble detects widely different road (14)
Fig. 5 rotor winding earth fault (any or 2 ground connection) detects widely different road (15)
The widely different road of Fig. 6 power supply (16,26)
Fig. 7 infrared waves transmitter unit (11,21)
Fig. 8 infrared waves receiving element (12,22)
One of mounting means of Fig. 9 detector
See that Fig. 1 T is that the rotating part of detector is loaded on the generator rotary part, by 10,11,12,13,14,15, the 16(front illustrates) form, S is that the detector stationary part is loaded on the generator stationary parts.By 20,21,22,23,24,25,26,27, form.13,14,15 respectively temperature of rotor sensor signal, open circuit short trouble signal, rotor winding earth fault-signal are treated to the electric signal that single-chip microcomputer 10 can receive and send into 10,10 will send into that signal carries out logic analysis and Unit 11 are sent in processing, 11 is that corresponding infrared signal is launched to stationary part with electrical signal conversion, simultaneously, 22 receptions change infrared signal into electric signal, import 20 pairs of parameters that receive of 20 Single Chip Microcomputer (SCM) system and failure message and carry out logical process.Simultaneously with about inquiry and steering order by 21,22 Single Chip Microcomputer (SCM) system 10 of sending into rotating part, relevant fault in the information of removing all kinds of obstacles effectively and the processing measuring system.The 27th, the integrated circuit binary-coded decimal of standard universal shows the sand device.
See Fig. 2, Single Chip Microcomputer (SCM) system 10,20 is by single-chip microcomputer IC21, and latch IC22 memory IC23 and A/D converter IC24 form, and are one of standard universal circuits.D0-D7 is a data bus.A0-A7, A8-A15 are address buss, the A0-A2 address wire.
See the widely different road 13 of Fig. 3 temperature detection, contain temperature sensor T31, resistance R 31 is formed with T31 and is divided hydraulic circuit, resistance R 32, capacitor C 31 composition filter circuits, eliminates and disturbs.A3 is the measuring-signal output terminal.Vcc represents power supply, represents public ground wire.
See that Fig. 4 opens a way, the widely different road 14 of short-circuit detecting, D40 be that brushless excitation loop commutation diode V41, V42 are its both end voltage, diode D41, D42, D43, D44 form commutating circuit, and D40 two ends alternating voltage is become DC voltage.T41 is that the optically-coupled pipe plays the voltage buffer action, and R41 is a current-limiting resistance, and R42 is a divider resistance, A4 point output voltage signal.When D40 open circuit or short circuit, the corresponding variation will take place in A4.
See Fig. 5, generator amature winding earth fault detect loop 15.L is the rotor winding, and E represents its both end voltage, and c point and b point are the assumed fault earth point.The a point is that actual earth point, diode D51, D52 shield when the rotor winding voltage is reverse, optically-coupled pipe T51, T52 play the voltage buffer action.R51, R52 are current-limiting resistance.It is identical with R52, R54, T52 parameter that R53, R54 are divider resistance, R51, R53, T51, and therefore, A51 is identical with A52 point output voltage when non-fault, in case when earth fault took place, A51, A52 point voltage changed.
See Fig. 6, detector working power loop 16 and 26, D61 are rectifier bridge, and C61, C62 are filter capacitor.IC61 is the three-terminal voltage-stabilizing power supply.C61, C62 are ac voltage input, and Vcc is a dc output end voltage.
See Fig. 7, transmitter unit 11 and 21.D71 is the infrared light power valve, and T71 is the power amplifier triode, and R71, R72 are current-limiting resistance, and A7 is the electric signal input point.
See Fig. 8, receiving element 12 and 22.D81 is the infrared light receiving tube.R81 is a divider resistance.A is an amplifier, amplifies received signal, and A8 is a signal output part.
See Fig. 9, one of mounting means of detector, the 1st, be contained in infrared light power valve D71 and receiving tube D81 on the generator rotating part 2.The 3rd, be contained in infrared light receiving tube D81 and D71 on the generator stationary part collecting ring 4.
The DC voltage Vcc on the widely different road 16 of power supply is connected with Vcc among Fig. 3,4,5,7,8 respectively among Fig. 6, so that the working power voltage of rotating part Unit 10,13,14,15,11,12 to be provided.The voltage vcc on the widely different road 26 of power supply and the Vcc among Fig. 2,8,7 join so that the working power voltage of stationary part Unit 20,22,21 to be provided among Fig. 6.Electric signal output point A3, A4, A51, A52, A8 and input point A7 are connected with 10 among each figure.A22 output point A8 and 21 input point A7 insert 20.
The utility model is owing to having adopted single-chip microcomputer that detection information is carried out intelligence and encoding process and having adopted coded infrared light to make to transmit media simultaneously, overcome effectively and avoided synchronous motor self-field, high-intensity magnetic field on every side, visible light and other various interference have realized the contactless accurately and reliably detection of synchronous electric motor rotor partial parameters fault.Simultaneously, the big expansion of sensing range has solved the measurement of carrying out rotor non electrical quantity (temperature rise) with this mode, and accurately detection rotor temperature rise, plays an important role to guaranteeing genset and safe operation of power plant at protection and raising generator insulating life-span.Realize that the brushless magnetic of contactless detection encourages fault and parameter, greatly improved the reliability of brushless excitation unit, promote its widespread use.
Claims (5)
1, a kind of rotor temperature rise and the contactless detector of fault, form by rotating part and stationary part, rotation and stationary part are respectively equipped with: the widely different road 16 of power supply and 26, transmitter unit 11 and 21, receiving element 12 and 22 has display part 21 on the stationary part, rotating part is provided with the widely different road 13 of temperature detection, it is characterized in that on rotation and the stationary part microcomputer system 10 and 20 being set respectively, transmit media with the coded infrared light signal between rotation and the stationary part.
2, by the described detector of claim 1, it is characterized in that establishing on the rotating part rotor winding earth fault (any or 2 ground connection) and detect widely different road 15, by resistance R 51, R53, R54 diode D51, D52, optically-coupled pipe T51, T52 form.
3, by the described detector of claim 1, it is characterized in that establishing on the rotating part brushless excitation commutator tube open circuit, short trouble detects widely different road 14.Form the widely different road of rectification by diode D41, D42, D43, D44.Optically-coupled pipe T41, resistance R 41, R42 form.
4, by the described detector of claim 1, it is characterized in that the widely different road 13 of temperature detection, by temperature sensor T13, capacitor C 13, resistance R 31, R32 form.
5, by the described detector of claim 1, it is characterized in that microcomputer system 10 and 20 can adopt one-chip computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214248 CN2135774Y (en) | 1992-03-12 | 1992-03-12 | Contactless tester for motor rotator temp. and trouble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214248 CN2135774Y (en) | 1992-03-12 | 1992-03-12 | Contactless tester for motor rotator temp. and trouble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135774Y true CN2135774Y (en) | 1993-06-09 |
Family
ID=33763696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92214248 Expired - Fee Related CN2135774Y (en) | 1992-03-12 | 1992-03-12 | Contactless tester for motor rotator temp. and trouble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135774Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384793A (en) * | 2011-11-11 | 2012-03-21 | 浙江大学 | Self-powered wireless temperature field measuring device in closed rotating shaft |
| CN103344915A (en) * | 2013-06-27 | 2013-10-09 | 深圳市汇川技术股份有限公司 | Synchronous motor temperature rise test system and method |
-
1992
- 1992-03-12 CN CN 92214248 patent/CN2135774Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384793A (en) * | 2011-11-11 | 2012-03-21 | 浙江大学 | Self-powered wireless temperature field measuring device in closed rotating shaft |
| CN103344915A (en) * | 2013-06-27 | 2013-10-09 | 深圳市汇川技术股份有限公司 | Synchronous motor temperature rise test system and method |
| CN103344915B (en) * | 2013-06-27 | 2016-03-16 | 深圳市汇川技术股份有限公司 | synchronous motor temperature rise test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |