CN207232303U - Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies - Google Patents
Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies Download PDFInfo
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- CN207232303U CN207232303U CN201721214528.4U CN201721214528U CN207232303U CN 207232303 U CN207232303 U CN 207232303U CN 201721214528 U CN201721214528 U CN 201721214528U CN 207232303 U CN207232303 U CN 207232303U
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- 230000005611 electricity Effects 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title claims abstract description 31
- 230000004224 protection Effects 0.000 claims abstract description 24
- 238000005086 pumping Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies.Its composition of this product includes:Voltage ratio network 1; voltage ratio network 2; the voltage ratio network 1 is all connected with relay 1 with the voltage ratio network 2; the relay 1 connects pumping signal selecting switch 1 and pumping signal selecting switch 2; the connection output matching potentiometer 1 of pumping signal selecting switch 1; the output matching potentiometer 1 connects ESD protection diodes 1; the connection output matching potentiometer 2 of pumping signal selecting switch 2; the output matching potentiometer 2 connects relay 2, the relay 2 connection ESD protection diodes 2.The utility model is detected for Short Circuit Between Generator Rotor Windings.
Description
Technical field：
It the utility model is related to a kind of novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies.
Background technology：
The core of resistance RSO detection techniques is to compare the difference of rotor windings both ends synthetic waveform, i.e., subtracts each other two waveforms,
Ripple is subtracted each other in generation, is known as " signature waveform ", then analyzes the distortion of signature waveform to judge state of insulation and the short circuit of rotor windings
Point position.The peak value of pumping signal is 12V, and the signature waveform distortion amplitude that single turn short circuit is generated is generally 0.1~0.5V.
The 1% of minimum distortion amplitude deficiency pumping signal peak value.
For two road signal sampling channels, not only required its range to be higher than 12V, but also required its precision sufficiently high, with exactly
Expressive Features wave distortion.If disposably calibrated before being dispatched from the factory using instrument, due to the aging of electronic component, through long
After phase use, inconsistent change may occur for the precision of two road acquisition channels, cause the signature waveform distortion distortion collected, instrument
Device loses main use value.
Instrument be used for generator amature detection, field of employment be typically power plant overhaul scene or electrical machinery plant workshop,
Experiment station；The condition of field of employment is limited, is not convenient to use using the instrument of all-in-one machine framework many times；High-rating generator
In rotation status, vibration, noise are very big, especially the thorax outer rotor experiment of experiment station of electrical machinery plant；It can influence to operate with regard near operation
Person's health, and have certain danger.
The content of the invention：
The purpose of this utility model is to provide a kind of applicability for improving instrument；Improve the base of the safeguard protection to operator
In the novel electricity generator rotor inter-turn short circuit detection device of resistance RSO technologies.
Above-mentioned purpose is realized by following technical scheme：
A kind of novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, its composition include:Voltage ratio
Example network 1, voltage ratio network 2, the voltage ratio network 1 are all connected with relay 1 with the voltage ratio network 2,
The relay 1 connects pumping signal selecting switch 1 and pumping signal selecting switch 2, the pumping signal selecting switch 1
Connection output matching potentiometer 1, output matching potentiometer 1 connect ESD protection diodes 1, pumping signal choosing
The connection output matching potentiometer 2 of switch 2 is selected, output matching potentiometer 2 connects relay 2, and the relay 2 connects
ESD protection diodes 2.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, output matching
The protection diode 1 in parallel of potentiometer 1, the output matching series connection ESD of potentiometer 1 protection diodes 1, the triode 1
Connect resistance R5, the resistance R5 connection resistance R6.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, output matching
The protection diode 2 in parallel of potentiometer 2, the output matching series connection triode 2 of potentiometer 2, the triode 2 connection resistance
R8, the resistance R8 connection resistance R9.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, the pumping signal
Selecting switch 1 connects resistance R10, the pumping signal selecting switch 2 connection resistance R9, and the voltage ratio network 1 has
There is resistance R1, the resistance R1 connection resistance R2, the voltage ratio network 2 is with resistance R3, resistance R3 companies
Connecting resistance R4, the resistance R2 and the resistance R4 are all connected with the relay 1.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, ESD protections two
Pole pipe 1 includes+15V triodes 2 and -5V triodes 1 with the ESD protection diodes 2.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, the voltage ratio
Network 1 connects buffer 1, the buffer 1 connection proportional difference input 1, and 1 connection modulus of proportional difference input turns
Parallel operation 14bit, the voltage ratio network 2 connection buffer 2, the buffer 2 connection proportional difference input 2 are described
Proportional difference input 2 connection analog-digital converter 14bit, the analog-digital converter 14bit connection circuit FPGA, the electricity
Road FPGA connection processing devices MCU, the processor MCU connection USB2.0 communication interfaces and WIFI communication module.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, the processor MCU
Analog switch and potentiometer control line are connected, the relay 2 described in the analog switch and the connection of potentiometer control line is described
Relay 2 connect BNC terminals E2, the BNC terminals E2 connection generator amatures；The generator amature connection BNC
Terminal E1, BNC terminals E1 connections output impedance matching potentiometer R1, output impedance matching potentiometer R1 connections
Incentive mode selecting switch 1, the incentive mode selecting switch 1 connect the analog switch and potentiometer control line, institute
The relay 2 stated connects output impedance matching potentiometer R2, output impedance matching potentiometer R2 connections incentive mode choosing
Switch 2 is selected, the incentive mode selecting switch 2 connects the analog switch and potentiometer control line.
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, the circuit FPGA
Digital analog converter DA, the 7 rank RLC filter networks of digital analog converter DA connections are connected, the 7 rank RLC filter networks connect
Connect ratio enlargement driver, it is ratio enlargement driver connection relay 1, the incentive mode selecting switch 1, described
Incentive mode selecting switch 2.
Beneficial effect：
1. the utility model uses battery powered；It need not arrange power cord temporarily at the scene, simplify detection operation.
The utility model can eliminate the influence that pass element aging is brought, and instrument is kept high long-term accuracy, and
Reduce the workload calibrated before dispatching from the factory.
The utility model uses the upper and lower rack structure of instrument+laptop；Instrument（Slave computer）Using it is light,
Compact design, easy to site layout project, and internal battery；Communicated between upper and lower machine using Wifi, instrument may be arranged at generator
Rotor tip, operator can carrying notebook computer be detected a long way off；USB2.0 communications are devised between upper and lower machine at the same time
Function, for closely operating.
Brief description of the drawings：
Attached drawing 1 is the circuit diagram of this product.
Attached drawing 2 is the lithium battery and management circuit diagram of this product.
Attached drawing 3 is the appearance diagram of this product.
Embodiment：
Below in conjunction with the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation describes.
Embodiment 1：
A kind of novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, its composition include:Voltage ratio
Example network 1, voltage ratio network 2, shell body, piece number 1, laptop, piece number 2, in the shell body equipped with lithium battery,
Piece number 3, the lithium battery connection management circuit, described management circuit include the voltage ratio network 1 and described
Voltage ratio network 2, the lithium battery connection laptop, the voltage ratio network 1 and the electricity
Pressure proportional network 2 is all connected with relay 1, the relay 1 connection pumping signal selecting switch 1 and pumping signal selecting switch
2, the pumping signal selecting switch 1 connection output matching potentiometer 1, output matching potentiometer 1 connects ESD protections
Diode 1, the pumping signal selecting switch 2 connection output matching potentiometer 2, output matching potentiometer 2 connect
Relay 2, the relay 2 connection ESD protection diodes 2.
Embodiment 2：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 1, described is defeated
Going out to match the protection diode 1 in parallel of potentiometer 1, output matching potentiometer 1 is connected ESD protection diodes 1, and described three
Pole pipe 1 connects resistance R5, the resistance R5 connection resistance R6.
Embodiment 3：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 1, described is defeated
Go out to match the protection diode 2 in parallel of potentiometer 2, the output matching series connection triode 2 of potentiometer 2, the triode 2 connects
Connecting resistance R8, the resistance R8 connection resistance R9.
Embodiment 4：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 1, described swashs
Encourage signal selecting switch 1 and connect resistance R10, the pumping signal selecting switch 2 connection resistance R9, the voltage ratio net
Network 1 has resistance R3, the resistance with resistance R1, the resistance R1 connection resistance R2, the voltage ratio network 2
R3 connection resistance R4, the resistance R2 and the resistance R4 are all connected with the relay 1.
Embodiment 5：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 1, it is described
ESD protection diodes 1 include+15V triodes 2 and -5V triodes 1 with the ESD protection diodes 2.
Embodiment 6：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 1, the electricity
Proportional network 1 is pressed to connect buffer 1, the buffer 1 connection proportional difference input 1,1 connection of proportional difference input
Analog-digital converter 14bit, the voltage ratio network 2 connection buffer 2, the buffer 2 connection proportional difference input
2, proportional difference input 2 connection analog-digital converter 14bit, the analog-digital converter 14bit connection circuit FPGA, institute
The circuit FPGA connection processing devices MCU stated, the processor MCU connection USB2.0 communication interfaces and WIFI communication module.
Embodiment 7：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 6, the place
Manage device MCU connection analog switches and potentiometer control line, the relay described in the analog switch and the connection of potentiometer control line
Device 2, the relay 2 connection BNC terminals E2, the BNC terminals E2 connection generator amatures；The generator amature
Connect BNC terminals E1, BNC terminals E1 connections output impedance matching potentiometer R1, output impedance matching current potential
Device R1 connection incentive modes selecting switch 1, the incentive mode selecting switch 1 connect the analog switch and potentiometer control
Line processed, the relay 2 connection output impedance matching potentiometer R2, output impedance matching potentiometer R2 connection excitations
Mode selection switch 2, the incentive mode selecting switch 2 connect the analog switch and potentiometer control line.
Embodiment 8：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in embodiment 6, the electricity
Road FPGA connection digital analog converters DA, the 7 rank RLC filter networks of digital analog converter DA connections, 7 rank RLC filtering
Network connection ratio enlargement driver, ratio enlargement driver connection relay 1, the incentive mode selecting switch
1st, the incentive mode selecting switch 2.
Embodiment 9：
The novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies described in above-described embodiment, RSO skills
Art is repetition pulse Waveform Method RECURRENT SURGE OSCILLOGRAPH, circuit FPGA（Field-Programmable
Gate Array）, relay 1 is single-pole double-throw switch (SPDT) relay.
Operation principle：
After instrument start, processor MCU commands relays 1, excitation is connected to by the input terminal of two-way synchronous acquisition unit
The output terminal of signal generating unit；0V d. c. voltage signals occur for MCU instruction pumping signal generating units；Delay 1 second；Two-way is same
Walk collecting unit and 10 point datas are gathered with 10ms spaced relations, average value is preserved；Processor MCU instruction pumping signals occur single
10V d. c. voltage signals occur for member；Delay 1 second；Two-way synchronous acquisition unit gathers 10 point datas with 10ms spaced relations, will be flat
Average preserves；Processor MCU generates the zero point of two-way synchronous acquisition unit, proportionality coefficient with the corresponding average value of 0V, 10V；Place
Device MCU commands relays 1 are managed, the input terminal of two-way synchronous acquisition unit is connected to the output terminal of impedance adjusting potentiometer；Instrument
Device enters normal operating conditions.
Claims (8)
1. a kind of novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies, its composition include:Voltage ratio
Network 1, voltage ratio network 2, it is characterized in that:The voltage ratio network 1 is all connected with the voltage ratio network 2
Relay 1, the relay 1 connection pumping signal selecting switch 1 and pumping signal selecting switch 2, the pumping signal
The connection output matching potentiometer 1 of selecting switch 1, output matching potentiometer 1 connect ESD protection diodes 1, and described swashs
Encourage signal selecting switch 2 connection output matching potentiometer 2, the output matching potentiometer 2 connect relay 2, it is described after
Electric appliance 2 connects ESD protection diodes 2.
2. the novel electricity generator rotor inter-turn short circuit detection device according to claim 1 based on resistance RSO technologies, it is special
Sign is:1 protection diode 1 in parallel of output matching potentiometer, the output matching series connection ESD of potentiometer 1 protections two
Pole pipe 1, triode 1 connect resistance R5, the resistance R5 connection resistance R6.
3. the novel electricity generator rotor inter-turn short circuit detection device according to claim 1 based on resistance RSO technologies, it is special
Sign is:2 protection diode 2 in parallel of output matching potentiometer, the output matching series connection triode 2 of potentiometer 2,
The triode 2 connects resistance R8, the resistance R8 connection resistance R9.
4. the novel electricity generator rotor inter-turn short circuit detection device according to claim 1 based on resistance RSO technologies, it is special
Sign is:The pumping signal selecting switch 1 connects resistance R10, the pumping signal selecting switch 2 connection resistance R9, institute
The voltage ratio network 1 stated has resistance R1, and the resistance R1 connection resistance R2, the voltage ratio network 2 has electric
R3 is hindered, resistance R3 connection the resistance R4, the resistance R2 and the resistance R4 are all connected with the relay 1.
5. the novel electricity generator rotor inter-turn short circuit detection device according to claim 1 based on resistance RSO technologies, it is special
Sign is:The ESD protection diodes 1 include+15V triodes 2 and -5V triodes 1 with the ESD protection diodes 2.
6. the novel electricity generator rotor inter-turn short circuit detection device according to claim 1 based on resistance RSO technologies, it is special
Sign is:The voltage ratio network 1 connects buffer 1, the buffer 1 connection proportional difference input 1, the ratio
Example Differential Input 1 connects analog-digital converter 14bit, the voltage ratio network 2 connection buffer 2, and the buffer 2 connects
Meet proportional difference input 2, proportional difference input 2 connection analog-digital converter 14bit, the analog-digital converter 14bit
Connect circuit FPGA, the circuit FPGA connection processing devices MCU, the processor MCU connection USB2.0 communication interfaces with
WIFI communication module.
7. the novel electricity generator rotor inter-turn short circuit detection device according to claim 6 based on resistance RSO technologies, it is special
Sign is:The processor MCU connection analog switches and potentiometer control line, the analog switch and potentiometer control line connect
Connect the relay 2, the relay 2 connection BNC terminals E2, the BNC terminals E2 connection generator amatures；It is described
Generator amature connection BNC terminals E1, the BNC terminals E1 connections output impedance match potentiometer R1, the output
Impedance matching potentiometer R1 connection incentive modes selecting switch 1, the incentive mode selecting switch 1 connect the simulation and open
Close and potentiometer control line, the relay 2 connection output impedance matching potentiometer R2, the output impedance match current potential
Device R2 connection incentive modes selecting switch 2, the incentive mode selecting switch 2 connect the analog switch and potentiometer control
Line processed.
8. the novel electricity generator rotor inter-turn short circuit detection device according to claim 6 based on resistance RSO technologies, it is special
Sign is:The circuit FPGA connection digital analog converters DA, the 7 rank RLC filter networks of digital analog converter DA connections are described
7 rank RLC filter networks connection ratio enlargement driver, the ratio enlargement driver connection relay 1, incentive mode choosing
Select switch 1, incentive mode selecting switch 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214528.4U CN207232303U (en) | 2017-09-21 | 2017-09-21 | Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214528.4U CN207232303U (en) | 2017-09-21 | 2017-09-21 | Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies |
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| Publication Number | Publication Date |
|---|---|
| CN207232303U true CN207232303U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721214528.4U Expired - Fee Related CN207232303U (en) | 2017-09-21 | 2017-09-21 | Novel electricity generator rotor inter-turn short circuit detection device based on resistance RSO technologies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379223A (en) * | 2020-10-26 | 2021-02-19 | 山东理工大学 | Equivalent circuit model for turn-to-turn insulation degradation of distribution transformer winding |
| CN114002595A (en) * | 2021-10-11 | 2022-02-01 | 哈尔滨物格电子技术有限公司 | Generator rotor turn-to-turn short circuit RSO test method, device and system |
-
2017
- 2017-09-21 CN CN201721214528.4U patent/CN207232303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379223A (en) * | 2020-10-26 | 2021-02-19 | 山东理工大学 | Equivalent circuit model for turn-to-turn insulation degradation of distribution transformer winding |
| CN114002595A (en) * | 2021-10-11 | 2022-02-01 | 哈尔滨物格电子技术有限公司 | Generator rotor turn-to-turn short circuit RSO test method, device and system |
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Granted publication date: 20180413 Termination date: 20180921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |