CN218272561U - Intelligent sensing online monitoring device for state of transformer reactor - Google Patents
Intelligent sensing online monitoring device for state of transformer reactor Download PDFInfo
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- CN218272561U CN218272561U CN202220615626.3U CN202220615626U CN218272561U CN 218272561 U CN218272561 U CN 218272561U CN 202220615626 U CN202220615626 U CN 202220615626U CN 218272561 U CN218272561 U CN 218272561U
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Abstract
The utility model discloses a transformer reactor state intelligence perception on-line monitoring device, including the on-line monitoring subassembly, including the on-line monitoring body that sets up, install the panel of on-line monitoring body front end, set up panel surface's mounting hole, install panel surface's pilot lamp and setting are installed the connection port at the on-line monitoring body back, the detection subassembly is including installing this internal ground current sensor of on-line monitoring, vibration sensor, ultrasonic sensor, high frequency current sensor and superfrequency sensor. The utility model discloses a modularization and miniaturized structural design, convenient transportation like this to can carry out integrated analysis to signals such as gas dissolved in transformer partial discharge, vibration, temperature load, the oil, form effectual aassessment diagnostic result.
Description
Technical Field
The utility model relates to a monitoring technology field specifically is transformer reactor state intelligence perception on-line monitoring device.
Background
The on-line monitoring technology of the transformer mainly adopts equipment such as partial discharge on-line monitoring, iron core grounding current on-line monitoring, sleeve pipe on-line monitoring and the like to monitor the running state of the transformer according to various mechanical and electrical characteristics of the transformer, and the monitoring structure of the multiple equipment has the advantages that the occupied size of the monitoring device is large and the monitoring device is inconvenient to transport and use in the using process, so that the intelligent sensing on-line monitoring device for the state of the transformer reactor is provided.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims at providing a transformer reactor state intelligent perception on-line monitoring device forms modularization and miniaturized structural design through the ground current sensor that sets up, vibration sensor, ultrasonic sensor, high frequency current sensor and superfrequency sensor, convenient transportation like this to can carry out integrated analysis to signals such as gas dissolved in transformer partial discharge, vibration, temperature load, the oil, form effectual aassessment diagnostic result.
In order to solve the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
transformer reactor state intelligent perception on-line monitoring device includes:
the online monitoring assembly comprises an online monitoring body, a panel arranged at the front end of the online monitoring body, a mounting hole formed in the surface of the panel, an indicator lamp arranged on the surface of the panel and a connecting port arranged on the back of the online monitoring body;
the detection assembly comprises a grounding current sensor, a vibration sensor, an ultrasonic sensor, a high-frequency current sensor and an ultrahigh-frequency sensor which are arranged in the online monitoring body.
As a transformer reactor state intelligent perception on-line monitoring device's an preferred scheme, wherein, ground current sensor's sensitivity: 0.1mA, measurement range: 2 mA-10A, full range linear error: 5 mA-100 mA, which is +/-2.5 mA;100 mA-10A.
As transformer reactor state intelligence perception on-line monitoring device an preferred scheme, wherein, vibration sensor measuring range, peak-peak value, 0.1 mu m ~ 400 mu m, the error is less than or equal to 10%, vibration acceleration measuring range: -10g to +10g, error less than or equal to 10%, frequency response: 5 Hz-3000 Hz, the relative error of the frequency response should be + -5%, the sensitivity of the sensor is: 100mV/g.
As a transformer reactor state intelligence perception on-line monitoring device's an optimal selection scheme, wherein, high frequency current sensor frequency range: 0.5-30 MHz, measurement range: 0-65 dBmV.
As a transformer reactor state intelligent perception on-line monitoring device's an preferred scheme, wherein, ultrasonic sensor frequency range: 20-300 kHz, linearity error: less than or equal to +/-10 percent, peak sensitivity: 80dB (V/(m/s)) or more, detection range: -10-75dB μ V.
Compared with the prior art, the utility model discloses the beneficial effect who has is: the grounding current sensor, the vibration sensor, the ultrasonic sensor, the high-frequency current sensor and the ultrahigh-frequency sensor form a modularized and miniaturized structural design, so that the transportation is convenient, signals such as partial discharge, vibration, temperature load, gas dissolved in oil and the like of the transformer can be comprehensively analyzed, an effective evaluation diagnosis result is formed, when the device is used specifically, the grounding current sensor can find abnormal grounding current in time and give an alarm, can carry out continuous monitoring to judge the running state and the change trend of the running state, and is convenient for operators to judge and process faults timely and correctly, the device can also automatically switch the current-limiting resistor by connecting the current-limiting resistor in series, limit the current within a certain range, limit the further development of accidents, the vibration sensor collects the running vibration data of the transformer, extracts the vibration characteristics and improves the accuracy of fault judgment, the ultrasonic sensor judges the partial discharge by detecting an ultrasonic signal generated by the partial discharge, when the discharge occurs in the equipment, the acoustic signal generated by the partial discharge is transmitted to the surface of the switch cabinet, the ultrasonic signal is converted into an electric signal by the ultrasonic sensor, and the electric signal is further amplified and transmitted to the acquisition system to achieve the purpose of detecting the partial discharge, when the partial discharge occurs in the cable of the transformer, a high-frequency pulse is generated and transmitted to a grounding wire at an intermediate joint or a terminal through a loop formed by a wire core and a metal sheath and finally enters the ground, therefore, the high-frequency current sensor is connected to the grounding wire at the intermediate joint or the terminal to detect the partial discharge signal, and as the field corona interference is mainly concentrated below a MHz frequency band, the ultrahigh-frequency sensor can effectively avoid the field corona interference and has higher sensitivity and anti-interference capability, and the electrified detection, positioning and defect type identification can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive laboriousness. Wherein:
fig. 1 is a first view structural diagram of the intelligent sensing online monitoring device for the state of the transformer reactor of the utility model;
FIG. 2 is a second view structural diagram of the intelligent sensing online monitoring device for the state of the transformer reactor of the utility model;
fig. 3 is the utility model discloses transformer reactor state intelligent perception on-line monitoring device's system block diagram.
In the figure: 100. an online monitoring component; 110. monitoring the body on line; 120. a panel; 130. mounting holes; 140. an indicator light; 150. a connection port; 200. a detection component; 210. a ground current sensor; 220. a vibration sensor; 230. an ultrasonic sensor; 240. a high-frequency current sensor; 250. an ultrahigh frequency sensor.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other embodiments may be utilized and other implementations may be devised without departing from the spirit and scope of the present invention.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a transformer reactor state intelligence perception on-line monitoring device, ground current sensor, vibration sensor, ultrasonic sensor, high frequency current sensor and the very high frequency sensor through setting up form modularization and miniaturized structural design, convenient transportation like this to can carry out integrated analysis to signals such as gas dissolved in transformer partial discharge, vibration, temperature load, the oil, form effectual aassessment diagnostic result.
Fig. 1-3 show the overall structure schematic diagram of an embodiment of the intelligent sensing online monitoring device for the state of the transformer reactor of the present invention, please refer to fig. 1-3, the main part of the intelligent sensing online monitoring device for the state of the transformer reactor of the present embodiment includes: an online monitoring assembly 100 and a detection assembly 200.
The on-line monitoring assembly 100 is used for installing and using the detection assembly 200, and specifically, the on-line monitoring assembly 100 includes an on-line monitoring body 110, a panel 120 installed at the front end of the on-line monitoring body 110, a mounting hole 130 formed in the surface of the panel 120, an indicator light 140 installed on the surface of the panel 120, and a connection port 150 installed at the back of the on-line monitoring body 110.
The detection assembly 200 is used for data monitoring, and in particular, the detection assembly 200 comprises a grounding current sensor 210, a vibration sensor 220, an ultrasonic sensor 230, a high-frequency current sensor 240 and an ultrahigh-frequency sensor 250 which are arranged in the online monitoring body 110, and when the detection assembly is used in particular, the grounding current sensor 210, the vibration sensor 220, the ultrasonic sensor 230, the high-frequency current sensor 240 and the ultrahigh-frequency sensor 250 are in modularized and miniaturized structural design, so that the transportation is convenient.
With reference to fig. 1-3, the intelligent sensing online monitoring device for the state of the transformer reactor according to the embodiment of the invention, when the intelligent sensing online monitoring device is used specifically, the grounding current sensor 210 finds abnormal grounding current in time and gives an alarm, and can perform continuous monitoring to judge the operation state and the change trend thereof, so as to facilitate operators to judge and process faults timely and correctly, and the device can also automatically switch the current limiting resistor by connecting the current limiting resistor in series, so as to limit the current within a certain range and limit the further development of accidents, the vibration sensor 220 collects the operation vibration data of the transformer, extracts the vibration characteristics, and improves the accuracy of fault judgment, the ultrasonic sensor 230 judges local discharge by detecting the ultrasonic signal generated by local discharge, when discharge occurs inside the device, the acoustic signal generated by local discharge is transmitted to the surface of the switch cabinet, the ultrasonic sensor 230 converts the ultrasonic signal into an electric signal, and further amplifies the electric signal and transmits the electric signal to the acquisition system, so as to achieve the purpose of detecting local discharge, the transformer cable generates high-frequency pulse when local discharge occurs, and transmits the signal to the grounding wire at the intermediate connector or the terminal through a loop formed by a wire core and a metal sheath, and finally enters the ground, so that the high-frequency-band sensor 240 can effectively identify the high-frequency interference and the high-frequency interference sensor, and can effectively detect the high-frequency interference on-field interference, and the corona sensor, and the defects of the corona sensor, and the corona sensor with the defects below-frequency interference detection capability of the defects of the high-frequency interference.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of these combinations not exhaustive in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. Transformer reactor state intelligent perception on-line monitoring device, its characterized in that includes:
the online monitoring assembly (100) comprises an online monitoring body (110), a panel (120) installed at the front end of the online monitoring body (110), a mounting hole (130) formed in the surface of the panel (120), an indicator lamp (140) installed on the surface of the panel (120) and a connecting port (150) installed on the back of the online monitoring body (110);
the detection assembly (200) comprises a grounding current sensor (210), a vibration sensor (220), an ultrasonic sensor (230), a high-frequency current sensor (240) and an ultrahigh-frequency sensor (250) which are arranged in the online monitoring body (110).
2. The intelligent sensing online monitoring device for the state of the transformer reactor as recited in claim 1, characterized in that the sensitivity of the grounding current sensor (210) is as follows: 0.1mA, measurement range: 2 mA-10A, full-range linear error: 5 mA-100 mA to be +/-2.5 mA;100 mA-10A.
3. The intelligent sensing online monitoring device for the state of the transformer reactor as recited in claim 2, wherein the vibration sensor (220) has a measurement range of 0.1 μm to 400 μm, a peak-to-peak value, an error of less than or equal to 10%, and a vibration acceleration measurement range of: -10g to +10g, error less than or equal to 10%, frequency response: 5 Hz-3000 Hz, the relative error of the frequency response should be + -5%, the sensitivity of the sensor is: 100mV/g.
4. The intelligent sensing online monitoring device for the state of the transformer reactor according to claim 3, characterized in that the frequency range of the high-frequency current sensor (240) is as follows: 0.5-30 MHz, measurement range: 0-65 dBmV.
5. The intelligent sensing online monitoring device for the state of the transformer reactor according to claim 4, characterized in that the frequency ranges of the ultrasonic sensor (230) are as follows: 20-300 kHz, linearity error: less than or equal to +/-10 percent, peak sensitivity: not less than 80dB (V/(m/s)), detection range: -10-75dB μ V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220615626.3U CN218272561U (en) | 2022-03-21 | 2022-03-21 | Intelligent sensing online monitoring device for state of transformer reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220615626.3U CN218272561U (en) | 2022-03-21 | 2022-03-21 | Intelligent sensing online monitoring device for state of transformer reactor |
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| CN218272561U true CN218272561U (en) | 2023-01-10 |
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| CN202220615626.3U Active CN218272561U (en) | 2022-03-21 | 2022-03-21 | Intelligent sensing online monitoring device for state of transformer reactor |
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