CN216387196U - High-voltage wire current collection device and high-voltage wire current collection system - Google Patents
High-voltage wire current collection device and high-voltage wire current collection system Download PDFInfo
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- CN216387196U CN216387196U CN202122197900.8U CN202122197900U CN216387196U CN 216387196 U CN216387196 U CN 216387196U CN 202122197900 U CN202122197900 U CN 202122197900U CN 216387196 U CN216387196 U CN 216387196U
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Abstract
The utility model discloses a high-voltage wire current acquisition device and a high-voltage wire current acquisition system, wherein a high-voltage current sensor, a wireless transmission module and an intelligent ammeter are arranged; the wireless transmission module is connected with the high-voltage current sensor and the intelligent electric meter, the high-voltage current sensor is used for being clamped with a high-voltage wire to obtain high-voltage side current data of the high-voltage wire, and the high-voltage current sensor and the high-voltage wire are installed in a clamping mode, so that the installation is simple, the arrangement is convenient, and power failure operation is not needed; the intelligent electric meter is used for acquiring current data of a low-voltage side, displaying or comparing the current data of the high-voltage side and the current data of the low-voltage side, can monitor the current difference of the high-voltage side and the low-voltage side, can be used for preventing electricity stealing and detecting faults, and can be widely applied to the technical field of electric power.
Description
Technical Field
The utility model relates to the technical field of electric power, in particular to a high-voltage wire current acquisition device and a high-voltage wire current acquisition system.
Background
The electric energy is one of the most important energy sources at present, has an important role in daily life of people, and is applied more and more frequently in various industries, so that the requirement on monitoring the electric energy is higher and more. When detecting 10KV high-voltage line at present, need install CT current transformer on 10KV high-voltage line, adopt fixed CT installation promptly, need power failure operation when the installation on the one hand, with high costs and influence the use, on the other hand needs to dispose corresponding current detection, communication control box, and the construction is complicated, and is efficient, consequently needs seek solution.
SUMMERY OF THE UTILITY MODEL
To solve at least one of the above-mentioned technical problems, the present invention is directed to: provided are a high-voltage wire current collection device and a high-voltage wire current collection system.
The technical scheme adopted by the utility model is as follows:
a high voltage wire current collection device, comprising: the system comprises a high-voltage current sensor, a wireless transmission module and an intelligent ammeter; the wireless transmission module with high voltage current sensor and smart electric meter connects, high voltage current sensor be used for with the high tension line joint in order to acquire the high pressure side current data of high tension line, smart electric meter is used for acquireing low pressure side current data, and will high pressure side current data with low pressure side current data show or contrast.
Further, the high-voltage current sensor is a magnetic sensor.
Further, the high-side current data includes a first a-phase current, a first B-phase current, and a first C-phase current.
Further, the low-side current data includes a second a-phase current, a second B-phase current, and a second C-phase current.
Further, wireless transmission module includes wireless transmission unit and treater, the treater with high voltage current sensor and wireless transmission unit connects, wireless transmission unit with smart electric meter connects.
Further, the smart electric meter comprises a display unit, and the display unit is used for displaying the high-voltage side current data and the low-voltage side current data.
Further, the smart electric meter comprises a processing unit and an alarm unit, the processing unit is connected with the alarm unit, and the processing unit is used for comparing the high-voltage side current data with the low-voltage side current data.
Further, the smart electric meter comprises a timing unit, and the timing unit is used for recording the time of receiving the high-voltage side current data and the low-voltage side current data.
Further, the high-voltage current sensor is provided with a separate battery.
The embodiment of the utility model also provides a high-voltage wire current acquisition system which comprises the high-voltage wire current acquisition device at the terminal, wherein the terminal is communicated with the intelligent electric meter.
The utility model has the beneficial effects that: the intelligent ammeter is characterized in that a high-voltage current sensor, a wireless transmission module and an intelligent ammeter are arranged; the wireless transmission module is connected with the high-voltage current sensor and the intelligent electric meter, the high-voltage current sensor is used for being clamped with a high-voltage wire to obtain high-voltage side current data of the high-voltage wire, and the high-voltage current sensor and the high-voltage wire are installed in a clamping mode, so that the installation is simple, the arrangement is convenient, and power failure operation is not needed; the intelligent electric meter is used for acquiring current data of a low-voltage side, displaying or comparing the current data of the high-voltage side and the current data of the low-voltage side, can monitor current difference of the high-voltage side and the low-voltage side, and can be used for electricity larceny prevention and fault detection.
Drawings
Fig. 1 is a schematic block diagram of a high-voltage wire current collection device according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," and the like in the description and claims of this application and in the drawings are used solely to distinguish one from another and are not used to describe a particular sequence. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The utility model will be further explained and explained with reference to the drawings and the embodiments in the description.
Referring to fig. 1, an embodiment of the present invention provides a high-voltage wire current collection device, which includes a high-voltage current sensor, a wireless transmission module, and an intelligent electric meter.
Referring to fig. 1, in the embodiment of the present invention, the high voltage current sensor is a magnetic sensor, and the high voltage current sensor is installed on a high voltage wire of 10KV at the high voltage side by clamping, wherein the clamping is that the high voltage current sensor is installed with a high voltage wire clamping line, and the high voltage current sensor is clamped at the outer side of the high voltage wire, so that the high voltage side current data of the high voltage wire can be obtained by a magnetic field principle, the normal use of the high voltage wire is not affected, the high voltage current sensor can be installed and detached temporarily or at any position of the high voltage wire, and the operation is convenient and fast. It should be noted that the high voltage current sensor may be an existing current sensor, including but not limited to a three-phase current sensor. In an embodiment of the present invention, the high-voltage side current data includes data of three-phase currents, specifically, a first a-phase current, a first B-phase current, and a first C-phase current. Optionally, a separate battery is configured in the high-voltage current sensor for supplying power, so that the endurance of the high-voltage current sensor is ensured, for example, the battery can work for a long time (more than or equal to 10 years).
Referring to fig. 1, in the embodiment of the present invention, the wireless transmission module is connected to the high-voltage current sensor and the smart meter, so as to implement data transmission between the high-voltage current sensor and the smart meter. Optionally, the wireless transmission module includes a wireless transmission unit and a processor. It should be noted that, the processor includes but is not limited to the singlechip, and the processor is connected with high-voltage current sensor and wireless transmission unit, and wireless transmission unit is connected with the smart electric meter, and the processor receives the data of high-voltage current sensor and transmits to the smart electric meter through wireless transmission unit. Optionally, the wireless transmission unit includes, but is not limited to, a bluetooth or WIFI unit.
Referring to fig. 1, optionally, the smart meter includes a display unit, a processing unit, an alarm unit, and a timing unit, and the processing unit is connected to the display unit, the alarm unit, and the timing unit. The processing unit may be composed of any one or more processor chips including an MCU single chip, an FPGA, a CPLD, a DSP, an ARM, and the like, and is not particularly limited.
In the embodiment of the utility model, the intelligent electric meter is arranged on the low-voltage side to acquire the low-voltage side current data through the self-arranged acquisition unit, or the processing unit receives the low-voltage side current data detected by other equipment arranged on the low-voltage side to realize the function of acquiring the low-voltage side current data, and the intelligent electric meter can display or compare the high-voltage side current data and the low-voltage side current data. The high-pressure side is referred to as the primary side, and the low-pressure side is referred to as the secondary side.
Specifically, the low-side current data also includes three-phase current data, specifically including a second a-phase current, a second B-phase current, and a second C-phase current, corresponding to the high-side current data.
In the embodiment of the utility model, the processing unit is used for receiving the high-voltage side current data and the low-voltage side current data, and transmitting the high-voltage side current data and the low-voltage side current data to the display unit for displaying, specifically, displaying the first phase-a current, the first phase-B current, the first phase-C current, the second phase-a current, the second phase-B current and the second phase-C current, so that monitoring personnel can monitor the high-voltage side current data, the low-voltage side current data and the current difference between the high-voltage side current data and the low-voltage side current data conveniently, and determine whether electricity stealing exists or realize fault detection.
Optionally, the timing unit is configured to record and store the time when the high-voltage side current data and the low-voltage side current data are received, and may be used for tracing back the current data.
Optionally, the processing unit may further compare the high-voltage side current data with the low-voltage side current data, specifically, compare the first a-phase current with the second a-phase current, compare the first B-phase current with the second B-phase current, compare the first C-phase current with the second C-phase current, and when any one of the comparison results exceeds a preset difference, the processing unit may control the alarm unit to alarm and notify the monitoring personnel. Therefore, through the setting of the processing unit, the double metering comparison of the high-voltage side and the low-voltage side, out-of-limit alarm and current difference accumulation are realized, the electricity stealing inspection is completed, the electricity stealing amount tracing is realized by matching with the timing unit, the problem of electricity stealing by low-power supply and low-meter is solved, and the effect of electricity stealing prevention is achieved.
Optionally, the comparison of the processing unit or the current data displayed by the display unit can also be used for monitoring personnel to know the fault detection conditions of the distribution transformer on the high-voltage side and the low-voltage side. For example, when the currents of two phases in the three phases on the high-voltage side are increased and equal, and the current on the low-voltage side is not increased and inversely decreased, monitoring personnel can know the inter-phase short-circuit fault inside the distribution transformer; or, the zero sequence current at the high-voltage side is increased, the corresponding phase currents (phase voltages) at the high-sub side and the low-voltage side are reduced, the other phase currents (phase voltages) are increased, and monitoring personnel can know that the internal grounding is achieved. Through the comparison and calculation of the high-voltage side load and the low-voltage side load, the understanding and the warning of fault conditions such as inter-phase short circuit, inter-turn short circuit, grounding, overload and the like in the distribution transformer are completed, and maintenance personnel can be guided to maintain.
Optionally, the comparison of the processing unit or the current data displayed by the display unit can also be used for monitoring personnel to know the fuse blowing detection condition. Specifically, if there is no current in one of the three phases on the high-voltage side and there is no current in the corresponding phase on the low-voltage side, the monitoring personnel can know that the fuse of the corresponding phase is blown and dropped.
Optionally, the comparison of the processing unit or the current data displayed by the display unit may also be used for performing high-loss point inspection and online screening detection on the power grid system. Specifically, the high-voltage current sensors can be temporarily arranged on different 10KV high-voltage line occasions and randomly arranged to carry out inspection and screening on high-loss points of the power grid system. In addition, the high-voltage side three-phase current is wirelessly collected, after voltage transformation ratio and current transformation ratio adjustment is carried out in the processing unit, the high-voltage side three-phase current and the low-voltage side current are synchronously compared, a threshold value is set, threshold value out-of-limit starting and stopping time and double-current curves are recorded, and remote alarm is carried out through an alarm unit, for example: and comparing the high-voltage side current data multiplied by the voltage transformation ratio with the low-voltage side current data IGL, recording a double-current curve, recording the threshold out-of-limit of ICD differential current, recording the out-of-limit starting and stopping time through a timing unit, and accumulating the current difference value for abnormal electricity utilization alarm and electric quantity tracing.
The embodiment of the utility model also provides a high-voltage wire current acquisition system which comprises the high-voltage wire current acquisition device and a terminal. Specifically, the terminal is communicated with the intelligent electric meter, the content in a display unit of the intelligent electric meter can be displayed on the terminal, or the alarm information of an alarm unit is received by displaying the comparison result, so that monitoring personnel can carry out remote monitoring.
It should be noted that the display unit, the processing unit, the timing unit and the alarm unit may adopt processing units known in the prior art, and embodiments of the present invention protect the connection relationship between the high-voltage current sensor and the high-voltage wire, the specific unit/module connection relationship formed between the high-voltage current sensor, the wireless transmission module and each unit in the smart meter, and the high-voltage wire current collection device based on the unit/module connection relationship, rather than the unit/module itself. In addition, the methods and processes of comparison, preset difference value and threshold setting, voltage transformation ratio, current transformation ratio adjustment and the like mentioned in the embodiment of the utility model are all based on the data processing level of the prior art, and the embodiment of the utility model does not relate to the improvement of the data processing method and software.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (10)
1. A high-voltage wire current collection device, comprising: the system comprises a high-voltage current sensor, a wireless transmission module and an intelligent ammeter; the wireless transmission module with high voltage current sensor and smart electric meter connects, high voltage current sensor be used for with the high tension line joint in order to acquire the high pressure side current data of high tension line, smart electric meter is used for acquireing low pressure side current data, and will high pressure side current data with low pressure side current data show or contrast.
2. The high-voltage wire current collection device according to claim 1, wherein: the high-voltage current sensor is a magnetic sensor.
3. The high-voltage wire current collection device according to claim 1, wherein: the high-side current data includes a first A-phase current, a first B-phase current, and a first C-phase current.
4. The high-voltage wire current collection device according to claim 3, wherein: the low-side current data includes a second A-phase current, a second B-phase current, and a second C-phase current.
5. The high-voltage wire current collection device according to claim 1, wherein: the wireless transmission module comprises a wireless transmission unit and a processor, the processor is connected with the high-voltage current sensor and the wireless transmission unit, and the wireless transmission unit is connected with the intelligent electric meter.
6. The high-voltage wire current collection device according to claim 1, wherein: the intelligent electric meter comprises a display unit, and the display unit is used for displaying the high-voltage side current data and the low-voltage side current data.
7. The high-voltage wire current collection device according to claim 1, wherein: the intelligent electric meter comprises a processing unit and an alarm unit, the processing unit is connected with the alarm unit, and the processing unit is used for comparing the high-voltage side current data with the low-voltage side current data.
8. The high-voltage wire current collection device according to claim 1, wherein: the intelligent electric meter comprises a timing unit, and the timing unit is used for recording the time of receiving the high-voltage side current data and the low-voltage side current data.
9. The high-voltage wire current collection device according to claim 1, wherein: the high-voltage current sensor is provided with an independent battery.
10. The utility model provides a high tension line current collection system which characterized in that: comprising a terminal in communication with a smart meter and a high voltage wire current collection device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197900.8U CN216387196U (en) | 2021-09-10 | 2021-09-10 | High-voltage wire current collection device and high-voltage wire current collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197900.8U CN216387196U (en) | 2021-09-10 | 2021-09-10 | High-voltage wire current collection device and high-voltage wire current collection system |
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| Publication Number | Publication Date |
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| CN216387196U true CN216387196U (en) | 2022-04-26 |
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| CN202122197900.8U Active CN216387196U (en) | 2021-09-10 | 2021-09-10 | High-voltage wire current collection device and high-voltage wire current collection system |
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