CN210346915U - Online temperature measuring device and fault indicator for overhead transmission line - Google Patents
Online temperature measuring device and fault indicator for overhead transmission line Download PDFInfo
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- CN210346915U CN210346915U CN201921634724.6U CN201921634724U CN210346915U CN 210346915 U CN210346915 U CN 210346915U CN 201921634724 U CN201921634724 U CN 201921634724U CN 210346915 U CN210346915 U CN 210346915U
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Abstract
The utility model provides an overhead transmission line online temperature measuring device and fault indicator relates to transmission line temperature measurement field. The CT energy acquisition device comprises a temperature measurement module, a CT energy acquisition device, a control module and a wireless transmission module; the temperature measuring module, the control module and the wireless transmission module are electrically connected with the CT energy taking device; the temperature measuring module comprises a heat conducting plate and a temperature sensor, wherein the heat conducting plate is arranged below the power transmission line and is in contact with the power transmission line; the temperature sensor is connected with the control module and used for transmitting temperature information to the control module; the control module is connected with the master station system through the wireless transmission module and is used for transmitting the temperature information to the master station system. The utility model discloses a CT is got electric installation and stand-by battery and is carried out common power supply to online temperature measuring device, no matter the line load size, can both effectively shorten the sampling interval, guarantees data transmission's accuracy ageing.
Description
Technical Field
The utility model relates to a transmission line temperature measurement field particularly, relates to an online temperature measuring device of overhead transmission line and fault indicator.
Background
Along with the increasing living standard of people, the demand on electric power is higher and higher, and in many places, the purpose of meeting users is achieved by expanding the capacity of the traditional power transmission line in a short period. However, after the capacity is expanded to a certain degree, the temperature of the transmission line will rise, so that the internal resistance of the line is increased, and the transmission loss is increased. Meanwhile, due to the fact that the high temperature is high for a long time, short circuit and aging of a line are easy to cause, and fire disasters can be caused in serious cases, monitoring on the power transmission line needs to be strengthened, and the purpose of safe operation is achieved.
However, because the existing on-line monitoring devices for the power transmission line mostly adopt a built-in disposable lithium sub-battery for power supply, the service life is short, in order to increase the service life, the interval between data sampling and data sending is usually lengthened, which is generally not less than 1 hour, the data updating delay condition is serious, and the temperature peak value cannot be accurately captured.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present invention is to provide an online temperature measuring device for overhead transmission lines and a fault indicator, so as to improve the problem of delay in updating temperature data of transmission lines in the prior art.
The embodiment of the utility model provides an online temperature measuring device of overhead transmission line, including temperature measurement module, CT energy-taking device, control module and wireless transmission module; the temperature measuring module, the control module and the wireless transmission module are electrically connected with the CT energy taking device; the temperature measuring module comprises a heat conducting plate and a temperature sensor, wherein the heat conducting plate is arranged below the power transmission line and is in contact with the power transmission line; the temperature sensor is connected with the control module and used for transmitting temperature information to the control module; the control module is connected with the master station system through the wireless transmission module and is used for transmitting the temperature information to the master station system.
As further optimization, the temperature sensor is connected with the control module through a serial port.
As a further optimization, the wireless transmission module is connected with the control module through an SPI interface.
As a further optimization, the wireless transmission module is a 433M radio frequency module SX1212 of lilda.
As a further optimization, the chip model of the control module is MSP430FR 5949.
As further optimization, the CT energy taking device comprises an energy taking alloy, a rectifying module and a capacitor which are connected in sequence; the output end of the capacitor is connected with the temperature measuring module, the control module and the wireless transmission module.
As a further optimization, the temperature measurement module, the control module and the wireless transmission module are electrically connected with the standby battery.
The utility model also provides a fault indicator, which comprises a wire clamping device, a main body part, an indicating device and the overhead transmission line online temperature measuring device;
the temperature measuring module is connected with the wire clamping device and is positioned below the wire clamping device, and the CT energy taking device, the control module and the wireless transmission module are arranged inside the main body part.
The utility model has the advantages as follows:
the utility model discloses an online temperature measuring device of overhead transmission line through with heat-conducting plate and power transmission line direct contact, ensures that the temperature of heat-conducting plate is unanimous with the power transmission line, and measurement temperature information data is more accurate. And the CT power taking device and the standby battery are adopted to jointly supply power to the online temperature measuring device, so that the sampling interval can be effectively shortened no matter the line load, and the accuracy and the timeliness of data transmission are ensured.
In addition, with this online temperature measuring device integration on fault indicator, richened fault indicator's function, still can realize at online temperature measuring device, still be convenient for install fast and dismantle, convenient to popularize and apply.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a topological structure diagram of an online temperature measuring device for an overhead transmission line according to a first embodiment of the present invention;
fig. 2 is a partial sectional structural view of an overhead line fault indicator according to a second embodiment of the present invention.
Icon: 10-a temperature measuring module; 11-a heat-conducting plate; 12-a temperature sensor; 20-a control module; 30-CT energy obtaining device; 31-capacitance; 40-a wireless transmission module; 50-a backup battery; 100-wire clamping device; 200-a body portion; 300-indicating means.
Detailed Description
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the embodiments, the references to "first \ second" are merely to distinguish similar objects and do not represent a specific ordering for the objects, and it is to be understood that "first \ second" may be interchanged with a specific order or sequence, where permitted. It should be understood that "first \ second" distinct objects may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced in sequences other than those illustrated or described herein.
Referring to fig. 1, a first embodiment of the present invention provides an online temperature measuring device for an overhead transmission line, including a temperature measuring module 10, a CT energy obtaining device 30, a control module 20, and a wireless transmission module 40. The temperature measuring module 10, the control module 20 and the wireless transmission module 40 are all electrically connected with the CT energy taking device 30, and the CT can quickly obtain electric energy from a power transmission line to supply the electric energy to the temperature measuring module 10, the control module 20 and the wireless transmission module 40 for use. The temperature measuring module 10 comprises a heat conducting plate 11 and a temperature sensor 12, wherein the heat conducting plate 11 is installed below the power transmission line and is in contact with the power transmission line; the temperature sensor 12 is connected with the control module 20 and is used for transmitting temperature information to the control module 20; the control module 20 is connected to the master station system through the wireless transmission module 40, and is configured to transmit the temperature information to the master station system. The CT energy obtaining device 30 needs to be in direct contact with a power transmission line to obtain electricity, and therefore, the CT energy obtaining device 30 and the temperature measuring module 10 can be mounted on the power transmission line through a cable joint or other fixed connection modes, which is not limited herein. The temperature sensor 12 may be disposed inside the heat conductive plate 11 to further precisely sense the temperature of the power transmission line. The heat conducting plate 11 may be a metal heat conducting plate, such as a copper plate, or may also be a heat conducting graphite plate, which is not limited herein.
Specifically, in this embodiment, after the online temperature measuring device for the overhead transmission line is installed on the transmission line, the transmission line can fully contact with the heat conducting plate 11, and the temperature sensor 12 is located inside the heat conducting plate 11, so that the heat conducting plate 11 and the temperature sensor 12 are tightly fitted with each other, the heat loss of the temperature in the transmission process from the transmission line and the heat conducting plate 11 to the temperature sensor 12 is reduced to the minimum, and the measured temperature information data is more accurate. Then, the temperature sensor 12 transmits the temperature information to the control module 20, and the control module 20 uploads the temperature information to the master station system through the wireless transmission module 40 after simple data processing, so as to achieve the purpose of real-time monitoring. When the master station system finds that the temperature information is abnormal, the emergency treatment of the power transmission line can be carried out in time, and the occurrence of accidents is reduced. The CT power supply device 30 can rectify the ac voltage of the power transmission line to form a dc voltage, and supply the dc voltage to the temperature measurement module 10, the control module 20, and the wireless transmission module 40, so as to solve the problem that the updating of the temperature information data is delayed and the temperature information data cannot be accurately captured in real time due to the adoption of a disposable battery for power supply in the prior art.
As a further optimization, on the basis of the above embodiment, the control module 20 has a chip model MSP430FR5949, and is configured to receive the temperature information transmitted by the temperature sensor 12, perform simple data processing, and transmit the temperature information to the master station system through the wireless transmission module 40. In this embodiment, the control module 20 may select a corresponding model according to actual conditions, and the present invention is not limited thereto. The temperature sensor 12 is connected with the control module 20 through a serial port, and the wireless transmission module 40 is connected with the control module 20 through an SPI interface. Preferably, the wireless transmission module 40 is a 433M radio frequency module SX1212 of lierda, and the wireless transmission module 40 of this type has a long transmission distance and low power consumption, so that the existing CT energy-taking device 30 can supply power to the wireless transmission module.
As a further optimization, on the basis of the above embodiment, the CT energy obtaining device 30 includes an energy obtaining alloy, a rectifying module and a capacitor 31, which are connected in sequence. The output end of the capacitor 31 is connected with the temperature measuring module 10, the control module 20 and the wireless transmission module 40. The power-taking alloy can be permalloy and is in direct contact with the power transmission line, the input end of the rectifying module is connected with the permalloy, alternating current electric energy is converted into direct current electric energy, and the direct current electric energy is supplied to the overhead power transmission line on-line temperature measuring device.
Specifically, in the present embodiment, a capacitor 31 is connected to the output end of the rectifying module, and the capacitor 31 is used for storing electric energy. When the current of the power transmission line is larger than 10A, the CT energy-taking device 30 can fully charge the capacitor 31 within 5 seconds, even if no battery exists, the capacitor 31 can support the temperature measurement module 10 to collect temperature once, the temperature information data is transmitted to the control module 20, and then the temperature information data is uploaded to the master station system through the wireless transmission module 40 by the control module 20, so that the possibility of monitoring the temperature of the power transmission line in real time is further realized.
As a further optimization, on the basis of the above embodiment, the online temperature measuring device for the overhead transmission line further includes a backup battery 50, and the temperature measuring module 10, the control module 20, and the wireless transmission module 40 are all electrically connected to the backup battery 50.
Specifically, in the present embodiment, when the power line current is less than 10A, the backup battery 50 is activated, so as to ensure the normal collection and transmission of the temperature information data. The standby battery 50 and the CT energy taking device 30 jointly supply power to the online temperature measuring device of the overhead transmission line, and when the line current is more than 10A, the CT energy taking device 30 supplies power without consuming the electric quantity of the battery; when the line current is less than 10A, the energy of the CT energy taking device is insufficient, the standby battery 50 starts to supply power, the temperature measurement module is supported to collect temperature information data, and the possibility of collecting the temperature data of the power transmission line in real time is further improved.
The online temperature measuring device for the overhead transmission line ensures that the temperature of the heat-conducting plate 11 is consistent with the transmission line by directly contacting the heat-conducting plate 11 with the transmission line, and the measured temperature information data is more accurate. And the CT power taking device 30 and the standby battery 50 are adopted to jointly supply power to the online temperature measuring device, so that the sampling interval can be effectively shortened no matter the line load, and the accuracy and the timeliness of data transmission are ensured.
Referring to fig. 2, a second embodiment of the present invention provides a fault indicator, which includes a wire clamping device 100, a main body 200, an indicating device 300 and the online temperature measuring device for an overhead transmission line provided by the first embodiment. The temperature measuring module 10 is connected to the wire clamping device 100 and located below the wire clamping device 100, and the CT energy obtaining device 30, the control module 20 and the wireless transmission module 40 are disposed inside the main body 200.
The line clamping device 100, the main body portion 200 and the indicating device 300 are connected in sequence, the line clamping device 100 is used for installing the fault indicator on a power transmission line, a circuit board is arranged in the main body portion 200, and the indicating device 300 is used for indicating the type of a fault. It should be noted that the fault indication device 300 may be an existing fault indicator, and the structures of the wire clamping device 100, the main body portion 200, and the indication device 300 may be the structures of these portions of the existing fault indicator, so that the specific structures of the wire clamping device 100, the main body portion 200, and the indication device 300 are not described herein again. In addition, the main body 200 and the pointing device 300 also include other conventional components, such as a card flipping mechanism, etc., but these conventional components do not relate to the innovation point of the present invention, and therefore, they are not described herein again, and the drawings of the embodiments are also omitted.
Specifically, in the present embodiment, as shown in fig. 2, the power transmission line passes through the central passage reserved in the line clamping device 100, so that the fault indicator is fixed on the power transmission line by the line clamping device. The heat-conducting plate 11 is located card line device 100 under, and the screw is passed through to the left and right sides and is blocked line device 100, guarantees heat-conducting plate 11 and power transmission line direct contact, and temperature sensor 12 can fix it in heat-conducting plate 11 below with gluing or other fixed mode, makes to realize the tight fit between heat-conducting plate 11 and the temperature sensor 12, and the loss of messenger's temperature in the transmission course falls to minimumly. The energy-extracting alloy of the CT energy-extracting device 30 can be installed inside the wire-clamping device 100 to form a closed loop, so as to facilitate energy extraction. The rectifier module, the capacitor 31, the control module 20 and the wireless transmission module 40 of the CT energy-taking device 30 are arranged inside the main body 200, so that the cleanliness of the working environment is ensured, and the whole temperature measurement system can normally operate.
This embodiment is integrated on fault indicator with overhead transmission line on-line temperature measuring device, adds the temperature measurement function on the original instruction trouble function of fault indicator, has richened fault indicator's function on the one hand, and on the other hand utilizes fault indicator's card line device 100 to install fixedly, can use the long-range installation of insulator spindle and dismantle convenient operation.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is communication connection between them, and specifically, the connection relationship can be implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort. The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An online temperature measuring device for an overhead transmission line is characterized by comprising a temperature measuring module, a CT energy taking device, a control module and a wireless transmission module; the temperature measuring module, the control module and the wireless transmission module are electrically connected with the CT energy taking device; the temperature measuring module comprises a heat conducting plate and a temperature sensor, wherein the heat conducting plate is arranged below the power transmission line and is in contact with the power transmission line; the temperature sensor is connected with the control module and used for transmitting temperature information to the control module; the control module is connected with the master station system through the wireless transmission module and is used for transmitting the temperature information to the master station system.
2. The online temperature measuring device of claim 1, wherein the temperature sensor is connected to the control module via a serial port.
3. The online temperature measuring device of the overhead transmission line according to claim 1, wherein the wireless transmission module is connected with the control module through an SPI interface.
4. The online temperature measuring device of claim 1, wherein the wireless transmission module is a 433M radio frequency module SX1212 of Lierda.
5. The overhead transmission line online temperature measurement device of claim 1, wherein the control module has a chip model of MSP430FR 5949.
6. The online temperature measuring device of the overhead transmission line according to claim 1, wherein the CT energy taking device comprises an energy taking alloy, a rectifying module and a capacitor which are connected in sequence; the output end of the capacitor is connected with the temperature measuring module, the control module and the wireless transmission module.
7. The online temperature measuring device of claim 6, further comprising a backup battery, wherein the temperature measuring module, the control module and the wireless transmission module are electrically connected to the backup battery.
8. A fault indicator is characterized by comprising a wire clamping device, a main body part, an indicating device and the overhead transmission line online temperature measuring device according to any one of claims 1-7;
the temperature measuring module is connected with the wire clamping device and is positioned below the wire clamping device, and the CT energy taking device, the control module and the wireless transmission module are arranged inside the main body part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921634724.6U CN210346915U (en) | 2019-09-27 | 2019-09-27 | Online temperature measuring device and fault indicator for overhead transmission line |
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| CN201921634724.6U CN210346915U (en) | 2019-09-27 | 2019-09-27 | Online temperature measuring device and fault indicator for overhead transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280934A (en) * | 2021-06-08 | 2021-08-20 | 安徽华希电力科技有限公司 | Overhead line presss from both sides temperature real-time supervision alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280934A (en) * | 2021-06-08 | 2021-08-20 | 安徽华希电力科技有限公司 | Overhead line presss from both sides temperature real-time supervision alarm device |
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Address after: 361024 unit 1103, No. 370, Chengyi street, phase III, software park, Xiamen City, Fujian Province Patentee after: Xiamen Sixin Smart Power Technology Co., Ltd Address before: Unit 501-502, 57 Chengyi North Street, Xiamen Software Park Phase III, Fujian Province Patentee before: Xiamen Sixin Smart Power Technology Co., Ltd |
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