CN215180796U - Power transformer sleeve pipe state data monitoring and collection system - Google Patents
Power transformer sleeve pipe state data monitoring and collection system Download PDFInfo
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- CN215180796U CN215180796U CN202121186670.9U CN202121186670U CN215180796U CN 215180796 U CN215180796 U CN 215180796U CN 202121186670 U CN202121186670 U CN 202121186670U CN 215180796 U CN215180796 U CN 215180796U
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Abstract
本实用新型属于输变电设备状态数据监测与采集技术领域，具体涉及一种电力变压器套管状态数据监测与采集装置，包括：传感器及数据采集组件、数据监测及处理系统组件、后台监测组件和供电单元，所述传感器及数据采集组件包括：微型化传感器组和信号处理电路，所述数据监测及处理系统组件包括：高速A/D转换电路、数据检测及处理单元、相位同步模块、高速算法单元、存储单元和通信单元，所述信号处理电路将模拟信号输入至所述高速A/D转换电路，所述高速A/D转换电路将模拟信号转换为数字信号输入至数据检测及处理单元，所述后台监测组件包括：站端监测和终端监测，所述供电单元用于供电。
The utility model belongs to the technical field of state data monitoring and collection of power transmission and transformation equipment, and in particular relates to a power transformer bushing state data monitoring and collection device, comprising: sensors and data collection components, data monitoring and processing system components, background monitoring components and The power supply unit, the sensor and data acquisition components include: a miniaturized sensor group and a signal processing circuit, the data monitoring and processing system components include: a high-speed A/D conversion circuit, a data detection and processing unit, a phase synchronization module, a high-speed algorithm unit, storage unit and communication unit, the signal processing circuit inputs an analog signal to the high-speed A/D conversion circuit, the high-speed A/D conversion circuit converts the analog signal into a digital signal and inputs it to the data detection and processing unit, The background monitoring component includes: station monitoring and terminal monitoring, and the power supply unit is used for power supply.
Description
Technical Field
The utility model belongs to the technical field of power transmission and transformation equipment state data monitoring and collection, concretely relates to power transformer sleeve pipe state data monitoring and collection system.
Background
The transformer bushing has a complex structure and a compact design, partial discharge may be generated due to design defects, improper installation, external environmental factors and the like in the operation process, and finally serious consequences such as transformer shutdown, bushing burst, ignition and the like are caused.
The existing transformer bushing online monitoring technology mostly adopts a three-phase unbalanced current method, a dielectric loss and capacitance absolute value method, a relative dielectric loss and capacitance online monitoring method, a high-frequency partial discharge online monitoring method and the like, wherein the three-phase unbalanced current method has low measurement sensitivity due to factors such as unbalanced three-phase voltage, large capacitance difference of the three-phase bushing, influence on a measurement result when surface leakage current exists and the like; the measurement result of dielectric loss and capacitance absolute value method is unstable due to the factors of PT angular difference of voltage signals, system harmonic and frequency, interphase interference, environment and the like; the relative dielectric loss and capacitance online monitoring method and the high-frequency partial discharge online monitoring method both need to independently occupy a sleeve end screen grounding structure, cannot be simultaneously implemented on the same transformer, cause a blind area on state monitoring quantity, and are not beneficial to timely discovering potential safety hazards of equipment.
Therefore, the method overcomes the limitation of the existing monitoring method, meets the requirement of transformer bushing state monitoring, develops a novel data monitoring and collecting device applied to the field of power transformer bushing state monitoring, and has very important significance.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art exists not enough, provides a power transformer sleeve pipe state data monitoring and collection system.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a power transformer sleeve pipe state data monitoring and collection system which characterized in that includes: sensor and data acquisition subassembly, data monitoring and processing system subassembly, backstage monitoring subassembly and power supply unit, sensor and data acquisition subassembly include: the system comprises a miniaturized sensor group and a signal processing circuit, wherein the miniaturized sensor group is used for detecting data of a three-phase transformer bushing, the output end of the miniaturized sensor group is connected with the input end of the signal processing circuit, and the signal processing circuit amplifies and filters signals transmitted by the miniaturized sensor group to form analog signals;
the data monitoring and processing system component comprises: the high-speed A/D conversion circuit inputs an analog signal into the high-speed A/D conversion circuit, the high-speed A/D conversion circuit converts the analog signal into a digital signal and inputs the digital signal into the data detection and processing unit, the output end of the data acquisition and processing unit is respectively connected with the phase synchronization module, the high-speed algorithm unit, the storage unit and the communication unit, the communication unit is connected with the background detection module, the data detection and processing unit inputs the signal into the high-speed algorithm unit for data calculation and analysis and feeds the result back to the data detection and processing unit, and the phase synchronization module inputs phase information into the data detection and processing unit; then, the data detection and processing unit stores the calculation result in the storage unit and feeds the result back to the background monitoring component through the communication unit;
the background monitoring component comprises: the system comprises station end monitoring and terminal monitoring, wherein the station end monitoring is arranged in a transformer substation, the terminal monitoring adopts a mobile terminal, a worker can conveniently carry the mobile terminal, and the power supply unit is used for supplying power.
Further, the miniaturized sensor group includes: the high-frequency pulse current sensor and the low-frequency current sensor generate an acceleration signal, a high-frequency pulse current signal and a low-frequency current signal by detecting a three-phase transformer bushing.
Furthermore, the miniaturized sensor group is embedded in an end screen protection cover of the three-phase transformer bushing, the miniaturized sensor group can be directly embedded in an existing end screen protection cover, data signals can be detected in a high-quality mode under the condition that the electrical characteristics, particularly the grounding characteristics, of the end screen of the original three-phase transformer bushing are not changed, field installation is facilitated, and operation is reliable.
Further, the communication unit adopts an APN and an Ethernet communication interface, and is connected with station side detection in an optical fiber mode and is connected with terminal monitoring in a wireless mode.
Further, the power supply unit is connected with the data detection and processing unit.
Furthermore, the miniaturized sensor group is provided with a plurality of groups, and the groups are respectively and correspondingly arranged in the end screen protective covers of the three-phase transformer bushings.
The utility model discloses a work flow as follows:
firstly, a miniaturized sensor group generates an acceleration signal, a high-frequency pulse current signal and a low-frequency current signal by detecting a three-phase transformer bushing and transmits the signals to a signal processing circuit;
secondly, a signal processing circuit amplifies and filters signals transmitted by the miniaturized sensor group to form analog signals and inputs the analog signals to the high-speed A/D conversion circuit;
thirdly, the high-speed A/D conversion circuit converts the analog signal into a digital signal and inputs the digital signal to the data detection and processing unit;
fourthly, the data detection and processing unit inputs the signals into a high-speed algorithm unit for data calculation and analysis, feeds the result back to the data detection and processing unit, and the phase synchronization module inputs phase information into the data detection and processing unit;
and fifthly, the data detection and processing unit stores the calculation result in the storage unit and feeds the result back to the background monitoring component through the communication unit.
Compared with the prior art, the utility model following beneficial effect has.
The utility model comprehensively monitors the vibration, high-frequency pulse current and low-frequency current signals of the three-phase transformer bushing, and can more effectively reflect the state condition of the transformer bushing through the comparative analysis of the three signals;
the utility model has the advantages that the synchronous measurement of a plurality of three-phase transformer sleeves is realized, the real-time performance is high, the defects of moisture, partial discharge and the like in the sleeves can be found, and the functions of real-time monitoring, data remote transmission, background analysis and the like are realized;
thirdly, the utility model discloses a miniaturized sensor group can directly inlay and locate the end screen safety cover of existing usefulness, under the condition that does not change the electrical characteristic of original three-phase transformer sleeve pipe end screen, especially ground connection characteristic, can detect out data signal high-quality ground, and the on-the-spot installation of being convenient for and operation are reliable.
Fourth, the utility model discloses satisfy IEC61850 stipulation, have normative function and communication model.
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The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following is a further description with reference to specific examples.
A power transformer bushing state data monitoring and collection device, comprising: sensor and data acquisition subassembly, data monitoring and processing system subassembly, backstage monitoring subassembly and power supply unit, sensor and data acquisition subassembly include: the system comprises a miniaturized sensor group and a signal processing circuit, wherein the miniaturized sensor group is used for detecting data of a three-phase transformer bushing, the output end of the miniaturized sensor group is connected with the input end of the signal processing circuit, and the signal processing circuit amplifies and filters signals transmitted by the miniaturized sensor group to form analog signals;
the data monitoring and processing system component comprises: the high-speed A/D conversion circuit inputs an analog signal to the high-speed A/D conversion circuit, the high-speed A/D conversion circuit converts the analog signal into a digital signal and inputs the digital signal to the data detection and processing unit, the output end of the data acquisition and processing unit is respectively connected with the phase synchronization module, the high-speed algorithm unit, the storage unit and the communication unit, and the communication unit is connected with the background detection module;
the background monitoring component comprises: and the power supply unit is used for supplying power.
The miniaturized sensor group includes: acceleration sensor, high frequency pulse current sensor and low frequency current sensor.
The miniaturized sensor group is embedded in a tap protective cover of the three-phase transformer bushing.
The communication unit is connected with the station end detection in an optical fiber mode and is connected with the terminal monitoring in a wireless mode.
The power supply unit is connected with the data detection and processing unit.
The miniaturized sensor group is provided with three groups which are respectively and correspondingly arranged in end screen protective covers of three-phase transformer bushings.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121186670.9U CN215180796U (en) | 2021-05-31 | 2021-05-31 | Power transformer sleeve pipe state data monitoring and collection system |
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| CN202121186670.9U CN215180796U (en) | 2021-05-31 | 2021-05-31 | Power transformer sleeve pipe state data monitoring and collection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023174448A1 (en) * | 2022-03-18 | 2023-09-21 | 国网浙江省电力有限公司电力科学研究院 | Transformer bushing partial discharge monitoring chip device and method |
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2021
- 2021-05-31 CN CN202121186670.9U patent/CN215180796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023174448A1 (en) * | 2022-03-18 | 2023-09-21 | 国网浙江省电力有限公司电力科学研究院 | Transformer bushing partial discharge monitoring chip device and method |
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