CN205176203U - Energy -conserving partial discharge signal pickup assembly - Google Patents
Energy -conserving partial discharge signal pickup assembly Download PDFInfo
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- CN205176203U CN205176203U CN201521002428.6U CN201521002428U CN205176203U CN 205176203 U CN205176203 U CN 205176203U CN 201521002428 U CN201521002428 U CN 201521002428U CN 205176203 U CN205176203 U CN 205176203U
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- controller
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- discharge signal
- acquisition circuit
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Abstract
The utility model provides an energy -conserving partial discharge signal pickup assembly, include: sensor interface, a filtering and amplifying circuit and the consecutive input that exports the controller to of acquisition circuit head and the tail are put in first superfrequency office, and sensor interface, the 2nd filtering and amplifying circuit and the consecutive input that exports the controller to of the 2nd acquisition circuit head and the tail are put in second superfrequency office, the noise sensor interface passes through the signal distribution module and exports inputs first, two filtering and amplifying circuit respectively, sensor interface, the 3rd filtering and amplifying circuit and the consecutive input that exports the controller to of the 3rd acquisition circuit head and the tail are put in ultrasonic wave office, power frequency signal input interface, power frequency cycle trigger circuit and connect the input first place of controller consecutive, the input of controller is connected with human sensor to detect whether someone is close to the output sense result, the output of controller is connected with LCD in order to show the result of gathering, the controller opens according to testing result control LCD and stops, has reduced the consumption.
Description
Technical field
The utility model relates to signal processing technology field, particularly relates to a kind of energy-conservation local discharge signal harvester.
Background technology
The data collector of the local discharge signal of electric system high-tension apparatus, the signal that various kinds of sensors can be collected is sent to the function of background server for further data processing by analog to digital conversion.The data collector of current local discharge signal realizes mainly through homemade or existing data collecting card.
But, when the partial discharge phenomenon of the equipment such as GIS, transformer in pressure power transmission and distribution transformer station occurs, ultrahigh-frequency signal and ultrasonic signal can be produced; Current data collector is in the detection to multiple high-tension apparatus or when carrying out localization of fault, need the number of sensor gathered to increase, there is interference each other, no matter and the Partial discharge signal detected whether someone operates, all the time show display screen, cause the problem of wastes power.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of energy-conservation local discharge signal harvester, for solving in prior art because number of probes is more, mutual interference, and detect Partial discharge signal no matter whether someone operates, all the time show display screen, cause the problem of wastes power.
For achieving the above object and other relevant objects, the utility model provides a kind of energy-conservation local discharge signal harvester, comprising:
Controller, first, sensor interface is put in two superfrequency offices, first, two, three filter amplification circuit, sensor noise interface, ultrasonic partial discharge sensor interface, power frequency component input interface, power frequency period trigger circuit, first, two, three Acquisition Circuit, sensor interface is put in described first superfrequency office, described first filter amplification circuit is connected successively with described first Acquisition Circuit head and the tail and exports the input end of described controller to, sensor interface is put in described second superfrequency office, described second filter amplification circuit is connected successively with described second Acquisition Circuit head and the tail and exports the input end of described controller to, described sensor noise interface exports the input end of first and second filter amplification circuit respectively by signal distribution module, described ultrasonic partial discharge sensor interface, the 3rd filter amplification circuit are connected successively with the 3rd Acquisition Circuit head and the tail and export the input end of described controller to, the output terminal of described power frequency component input interface connects the input end of described power frequency period trigger circuit, the output terminal of described power frequency period trigger circuit connects the input end of described controller, the input end of described controller is connected with human inductor, whether have people near sending corresponding testing result to controller to detect, the output terminal of described controller is connected with LCD to show the result gathering Partial discharge signal, described controller controls the start and stop of described LCD according to testing result.
Preferably, the input end of described controller is connected with input keyboard to realize man-machine interaction.
Preferably, described human inductor is infrared sensor.
Preferably, the output terminal of described controller is connected with for detecting when Partial discharge signal exceedes parameter preset and the alarm relay responded.
Preferably, described alarm relay is pilot lamp or hummer.
Preferably, the output terminal of described controller is provided with RJI45 interface and optical fiber interface.
Preferably, first, second Acquisition Circuit described is High Speed Data Acquisition Circuit, and described 3rd Acquisition Circuit is medium speed data Acquisition Circuit.
As mentioned above, energy-conservation local discharge signal harvester of the present utility model, has following beneficial effect:
By being provided with different filtering circuits at multiple sensor, to the environmental interference signal gathered in transformer station and noise signal, the electromagnetic wave received by sensor noise contrasts the undesired signal eliminated superfrequency sensor and receive, thus can obtain from Partial discharge signal real in monitored device; Noise transducer signal carries out the harmless distribution of power by signal distribution circuit, be assigned to each innings to put filter amplification circuit corresponding to sensor signal and carry out the filter and amplification the same with Partial discharge signal, realize filtering to the undesired signal of below 300MHZ, and play a game with putting and amplify with noise signal.Acquisition Circuit realizes changing the data of high frequency analog signals, and the result obtained is transferred to controller by parallel interface.Controller realizes the data analysis contrast of putting sensor path signal and noise transducer passage of playing a game, thus filters out noise signal, carries out analysis judge Partial discharge signal signal.Whether the Partial discharge signal of collection being existed people around according to detection, when people having been detected, then lighting LCD to show the Partial discharge signal gathered; When nobody, then turn off LCD and simple the Partial discharge signal of collection is sent to background server.Whether controller exceeds parameter preset according to the Partial discharge signal gathered and controls the start and stop of alarm relay, reaches the object notifying operating personnel.
Accompanying drawing explanation
Fig. 1 is shown as energy-conservation local discharge signal harvester structural representation of the present utility model.
Element numbers illustrates:
1 controller
Sensor interface is put in 21 first superfrequency offices
Sensor interface is put in 22 second superfrequency offices
31 first filter amplification circuit
32 second filter amplification circuit
33 the 3rd filter amplification circuit
41 first Acquisition Circuit
42 second Acquisition Circuit
43 the 3rd Acquisition Circuit
5 sensor noise interfaces
6 signal distribution modules
7 ultrasonic partial discharge sensor interfaces
8 power frequency component input interfaces
9 power frequency period trigger circuit
10 input keyboards
11 human inductors
12LCD
13 alarm relaies
14 ethernet physical layer protocol circuit
15RJ45 interface
16 optical fiber interfaces
Embodiment
Below by way of specific instantiation, embodiment of the present utility model is described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present utility model and effect easily.The utility model can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present utility model.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram provided in following examples only illustrates basic conception of the present utility model in a schematic way, then only the assembly relevant with the utility model is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Refer to Fig. 1, energy-conservation local discharge signal harvester structural representation of the present utility model, comprising:
Controller 1, first, sensor interface is put in two superfrequency offices, first, two, three filter amplification circuit, sensor noise interface 5, ultrasonic partial discharge sensor 7 interface, power frequency component input interface 8, power frequency period trigger circuit 9, first, two, three Acquisition Circuit, sensor interface 21 is put in described first superfrequency office, described first filter amplification circuit 31 is connected successively with described first Acquisition Circuit 41 head and the tail and exports the input end of described controller 1 to, sensor interface 22 is put in described second superfrequency office, described second filter amplification circuit 32 is connected successively with described second Acquisition Circuit 42 head and the tail and exports the input end of described controller 1 to, described sensor noise interface 5 exports the input end of first and second filter amplification circuit respectively by signal distribution module 6, described ultrasonic partial discharge sensor 7 interface, the 3rd filter amplification circuit 33 are connected successively with the 3rd Acquisition Circuit 43 head and the tail and export the input end of described controller 1 to, the output terminal of described power frequency component input interface 8 connects the input end of described power frequency period trigger circuit 9, the output terminal of described power frequency period trigger circuit 9 connects the input end of described controller 1, the input end of described controller 1 is connected with human inductor 11, whether have people near sending corresponding testing result to controller 1 to detect, the output terminal of described controller 1 is connected with LCD12 to show the result gathering Partial discharge signal, described controller 1 controls the start and stop of described LCD12 according to testing result.
Wherein, first, second Acquisition Circuit 42 described is High Speed Data Acquisition Circuit, and described 3rd Acquisition Circuit 43 is medium speed data Acquisition Circuit.
In the present embodiment, described ultrasonic sensor channel interface receive ultrasonic signal by filter amplification circuit realize filtering and noise reduction process and amplify after, realized the digital conversion of simulating signal by medium speed data Acquisition Circuit.And pass to primary controller and carry out further data processing.By the analysis to ultrasonic signal, carry out the location that origination point is put in judgement drawn game that office puts.
Particularly, the input end of described controller 1 is connected with input keyboard 10 to realize man-machine interaction.
Particularly, whether the input end of described controller 1 is connected with human inductor 11 has people close to detect, and realizes the perception to mobile human body, for the waking up of LCD12 function of implement device.When human body approaching device, LCD12 is lit to facilitate keeper to check data.After human body is away from a period of time, LCD12 meeting auto sleep, to ensure the serviceable life of LCD12.
Particularly, when controller 1 receive human inductor 11 testing result for have people near time, light LCD12 and gather the result of Partial discharge signal to show.
In the present embodiment, man-machine payment part is made up of keyboard and color LCD 12.Keyboard realizes the switching of menu and the input of configuration parameter, and LCD12 Presentation Function mainly realizes the display of local monitoring configuration and local discharge signal waveform and the analysis data display of electric discharge result.Red warning message can be shown when office puts more serious.
Particularly, described alarm relay 13 is pilot lamp or hummer, when alarm relay 13 output circuit reaches the parameter of setting for putting the order of severity in office, exports the switching value of passive dry contact to light alarm lamp or hummer.
Particularly, the output terminal of described controller 1 is provided with RJ45 interface and optical fiber interface 16 interface, and telecommunication part is realized by ethernet physical layer protocol circuit 14, and communication interface has two kinds, common isolation RJ45 interface 15 and optical fiber interface 16 communication interface.When there being strict demand, optical fiber interface 16 interface can realize the electrical isolation of transformer station's Partial discharge signal collector and background server.
Controller 1 realizes the configuration of whole collector, communication and data processing as the center gathered.This controller 1 realizes for FPGA, with the data acquisition and processing (DAP) demand of satisfied high speed, is met the storage demand of mass data by SDRAM.
In sum, the utility model is by being provided with different filtering circuits at multiple sensor, to the environmental interference signal gathered in transformer station and noise signal, the electromagnetic wave received by sensor noise contrasts the undesired signal eliminated superfrequency sensor and receive, thus can obtain from Partial discharge signal real in monitored device; Noise transducer signal carries out the harmless distribution of power by signal distribution circuit, be assigned to each innings to put filter amplification circuit corresponding to sensor signal and carry out the filter and amplification the same with Partial discharge signal, realize filtering to the undesired signal of below 300MHZ, and play a game with putting and amplify with noise signal.Acquisition Circuit realizes changing the data of high frequency analog signals, and the result obtained is transferred to controller 1 by parallel interface.Controller 1 realizes the data analysis contrast of putting sensor path signal and noise transducer passage of playing a game, thus filters out noise signal, carries out analysis judge Partial discharge signal signal.Whether the Partial discharge signal of collection being existed people around according to detection, when people having been detected, then lighting LCD12 to show the Partial discharge signal gathered; When nobody, then turn off LCD12 and simple the Partial discharge signal of collection is sent to background server.Whether controller 1 exceeds parameter preset according to the Partial discharge signal gathered and controls the start and stop of alarm relay 13, reaches the object notifying operating personnel.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (7)
1. an energy-conservation local discharge signal harvester, is characterized in that, described device comprises:
Controller, first, sensor interface is put in two superfrequency offices, first, two, three filter amplification circuit, sensor noise interface, ultrasonic partial discharge sensor interface, power frequency component input interface, power frequency period trigger circuit, first, two, three Acquisition Circuit, sensor interface is put in described first superfrequency office, described first filter amplification circuit is connected successively with described first Acquisition Circuit head and the tail and exports the input end of described controller to, sensor interface is put in described second superfrequency office, described second filter amplification circuit is connected successively with described second Acquisition Circuit head and the tail and exports the input end of described controller to, described sensor noise interface exports the input end of first and second filter amplification circuit respectively by signal distribution module, described ultrasonic partial discharge sensor interface, the 3rd filter amplification circuit are connected successively with the 3rd Acquisition Circuit head and the tail and export the input end of described controller to, the output terminal of described power frequency component input interface connects the input end of described power frequency period trigger circuit, the output terminal of described power frequency period trigger circuit connects the input end of described controller, the input end of described controller is connected with human inductor, whether have people near sending corresponding testing result to controller to detect, the output terminal of described controller is connected with LCD to show the result gathering Partial discharge signal, described controller controls the start and stop of described LCD according to testing result.
2. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, the input end of described controller is connected with input keyboard to realize man-machine interaction.
3. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, described human inductor is infrared sensor.
4. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, the output terminal of described controller is connected with for detecting when Partial discharge signal exceedes parameter preset and the alarm relay responded.
5. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, described alarm relay is pilot lamp or hummer.
6. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, the output terminal of described controller is provided with RJI45 interface and optical fiber interface.
7. energy-conservation local discharge signal harvester according to claim 1, is characterized in that, first, second Acquisition Circuit described is High Speed Data Acquisition Circuit, and described 3rd Acquisition Circuit is medium speed data Acquisition Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521002428.6U CN205176203U (en) | 2015-12-04 | 2015-12-04 | Energy -conserving partial discharge signal pickup assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521002428.6U CN205176203U (en) | 2015-12-04 | 2015-12-04 | Energy -conserving partial discharge signal pickup assembly |
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| Publication Number | Publication Date |
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| CN205176203U true CN205176203U (en) | 2016-04-20 |
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| CN201521002428.6U Expired - Fee Related CN205176203U (en) | 2015-12-04 | 2015-12-04 | Energy -conserving partial discharge signal pickup assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548828A (en) * | 2015-12-04 | 2016-05-04 | 重庆臻远电气有限公司 | Energy-saving partial discharge signal acquisition device |
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2015
- 2015-12-04 CN CN201521002428.6U patent/CN205176203U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548828A (en) * | 2015-12-04 | 2016-05-04 | 重庆臻远电气有限公司 | Energy-saving partial discharge signal acquisition device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161204 |