CN208984989U - High voltage cable smart grounding box device - Google Patents
High voltage cable smart grounding box device Download PDFInfo
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- CN208984989U CN208984989U CN201822122250.9U CN201822122250U CN208984989U CN 208984989 U CN208984989 U CN 208984989U CN 201822122250 U CN201822122250 U CN 201822122250U CN 208984989 U CN208984989 U CN 208984989U
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Abstract
The utility model embodiment is related to technical field of power systems, in particular to a kind of high voltage cable smart grounding box device.The voltage value that the high voltage cable smart grounding box device can effectively monitor the temperature of cable, supply voltage, outer jacket circulation by corresponding circuit and be respectively converted into for microcontroller acquisition so, it is possible to realize the various dimensions monitoring to cable.
Description
Technical field
The utility model embodiment is related to technical field of power systems, connects in particular to a kind of high voltage cable smart
Ground case apparatus.
Background technique
When single-core high-voltage cable is run, the electric current that conductive cable cores pass through will generate induced voltage on metal sheath,
Length of the voltage with cable and the electric current by cable core change, and when cable run asymmetry, short circuit occurs for route
Failure will form higher induced potential when route is by switching overvoltage or Lightning Over-voltage on the metal sheath of cable,
Cause cable jacket breakdown.So generated induced current on this part metals sheath is needed effectively to be grounded
(directly, protect, be cross interconnected).But existing high-tension cable grounding box is difficult to realize the various dimensions monitoring to cable.
Utility model content
In view of this, the present invention provides a kind of high voltage cable smart grounding box devices.
The utility model embodiment provides a kind of high voltage cable smart grounding box device, comprising: cable temperature measurement electricity
Road, cable power supply voltage value observation circuit, protective coverings of cable circulation measuring circuit, anti-theft warning circuit and microcontroller；
The cable temperature temperature measurement circuit includes temperature sensor and converting unit；The temperature sensor is set to described
The busbar of high voltage cable smart grounding box device, the busbar are connect with earth cable；The temperature sensor and the conversion
Unit connection, the converting unit are connect with the microcontroller；The converting unit will be for that will pass through the temperature sensor
Voltage value after partial pressure is transmitted to the microcontroller；
The cable power supply voltage value observation circuit is connect with the microcontroller, the cable power supply voltage value monitoring electricity
Road is used to the voltage value of cable being converted to the first setting voltage value, the first setting voltage value is transmitted to described micro-
Controller；
The protective coverings of cable circulation measuring circuit is connect with the microcontroller, the protective coverings of cable circulation measuring circuit
For protective coverings of cable circulation to be converted to the second setting voltage value, the second setting voltage value is transmitted to the microcontroller
Device；
The anti-theft warning circuit is connect with the microcontroller, and the anti-theft warning circuit is used to work as access control voltage value
When reaching conduction value, the access control voltage value is converted into third setting voltage value, third setting voltage value is passed
Transport to the microcontroller.
Optionally, the converting unit includes the first operational amplifier, isolated amplifier and second operational amplifier；
The input terminal of first operational amplifier is for receiving the first circuit voltage value；
Temperature sensor is connected to the output end of first operational amplifier and the input terminal of the isolated amplifier；
The output end of the isolated amplifier and the input terminal of second operational amplifier connect；
The output end of the second operational amplifier is connected to the microcontroller；
First operational amplifier is used to amplify the first circuit voltage value to obtain second circuit and supplies
Piezoelectric voltage value, second circuit voltage value of the isolated amplifier for after being divided by the temperature sensor pass
Transport to the second operational amplifier；
The second operational amplifier is used to that the second circuit voltage value after partial pressure to be amplified and is transmitted to
The microcontroller.
Optionally, the temperature sensor is PT100.
Optionally, first operational amplifier and the second operational amplifier are OPA2317, the isolated amplifier
For AMC1200.
Optionally, cable power supply voltage value observation circuit includes third operational amplifier；
The third operational amplifier is connect with the microcontroller；
The third operational amplifier is used to the voltage value of cable being converted to the first setting voltage value, by described the
One setting voltage value is transmitted to the microcontroller.
Optionally, the third operational amplifier is OPA2317.
Optionally, the protective coverings of cable circulation measuring circuit includes that the first current value measuring unit and the second current value are surveyed
Measure unit；
The first current value measuring unit includes four-operational amplifier；
The second current value measuring unit includes the 5th operational amplifier；
The output end of the output end of the four-operational amplifier and the 5th operational amplifier with the microcontroller
Device connection；
When the protective coverings of cable circulation is greater than setting electric current value, the protective coverings of cable circulation is from the 4th operation
The input terminal of amplifier flows to the four-operational amplifier, is converted to the second setting electricity through the four-operational amplifier
Pressure value, and the microcontroller is transmitted to from the output end of the four-operational amplifier；
When the protective coverings of cable circulation is less than setting electric current value, the protective coverings of cable circulation is from the 5th operation
The input terminal of amplifier flows to the 5th operational amplifier, is converted to the second setting electricity through the 5th operational amplifier
Pressure value, and the microcontroller is transmitted to from the output end of the 5th operational amplifier.
Optionally, the four-operational amplifier and the 5th operational amplifier are OPA2317.
Optionally, the anti-theft warning circuit includes optocoupler；
The input terminal of the optocoupler is used to receive the access control voltage value of high voltage cable smart grounding box device, when described
When taboo switching voltage value reaches the conduction value, the output end of the optocoupler is connected with the microcontroller, the access control
Voltage value is converted to third setting voltage value after optocoupler partial pressure and is transmitted to the microcontroller.
Optionally, the optocoupler is LP521.
Beneficial effect
High voltage cable smart grounding box device provided by the embodiment of the utility model, can be by corresponding circuit to cable
Temperature, supply voltage, outer jacket circulation effectively monitored and be respectively converted into the voltage value for microcontroller acquisition, such as
This, can be realized the various dimensions monitoring to cable.
Further, anti-theft warning circuit can be improved the safety of high voltage cable smart grounding box device.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural block diagram of high voltage cable smart grounding box device provided by the utility model embodiment.
Fig. 2 is a kind of circuit diagram of cable temperature measuring circuit provided by the utility model embodiment.
Fig. 3 is a kind of circuit diagram of cable power supply voltage value observation circuit provided by the utility model embodiment.
Fig. 4 is a kind of circuit diagram of protective coverings of cable circulation measuring circuit provided by the utility model embodiment.
Fig. 5 is a kind of circuit diagram of anti-theft warning circuit provided by the utility model embodiment.
Icon:
100- high voltage cable smart grounding box device；
1- cable temperature measuring circuit；11- temperature sensor；The first operational amplifier of 121-；122- isolated amplifier；
123- second operational amplifier；
2- cable power supply voltage value observation circuit；21- third operational amplifier；
3- protective coverings of cable circulation measuring circuit；31- four-operational amplifier；The 5th operational amplifier of 32-；
4- anti-theft warning circuit；41- optocoupler；
5- microcontroller.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this with concrete condition
Concrete meaning in type.
Inventor further investigation reveals that, existing high-tension cable grounding box is difficult to realize to the monitoring of the various dimensions of cable, and is pacified
Full property is lower.
Defect present in the above scheme in the prior art, is that inventor is obtaining after practicing and carefully studying
As a result, therefore, what the discovery procedure of the above problem and hereinafter the utility model embodiment were proposed regarding to the issue above
Solution all should be the contribution that inventor makes the utility model during the utility model.
Based on the studies above, the utility model embodiment provides a kind of high voltage cable smart grounding box device, Neng Goushi
Now the various dimensions of cable are monitored.
Fig. 1 shows a kind of structure of high voltage cable smart grounding box device 100 provided by the utility model embodiment
Block diagram, as seen from the figure, the high voltage cable smart grounding box device 100 include cable temperature measuring circuit 1, cable power supply voltage value
Observation circuit 2, protective coverings of cable circulation measuring circuit 3, anti-theft warning circuit 4 and microcontroller 5, wherein cable temperature measurement
Circuit 1, cable power supply voltage value observation circuit 2, protective coverings of cable circulation measuring circuit 3 and anti-theft warning circuit 4 are and micro-control
Device 5 processed connects, can temperature to cable, supply voltage, outer jacket circulation effectively monitored and be respectively converted into for micro-
The voltage value of controller acquisition, optionally, voltage value can be sent to upper by microcontroller 5 by way of GPRS wireless telecommunications
Machine carries out real-time monitoring, so, it is possible to realize the various dimensions monitoring to cable, further, anti-theft warning circuit 5 can be improved
The safety of high voltage cable smart grounding box device 100.It will be described further below for each circuit:
Referring to Fig. 2, for a kind of circuit theory of cable temperature temperature measurement circuit 1 provided by the utility model embodiment
Figure, as seen from the figure, cable temperature temperature measurement circuit 1 include temperature sensor 11 and converting unit, wherein converting unit includes first
Operational amplifier 121, isolated amplifier 122 and second operational amplifier 123.Further, temperature sensor 11 is PT100,
It is a thermistor, temperature sensor 11 is set to the busbar in high voltage cable smart grounding box device 100, it will be understood that high
Voltage cable smart grounding case apparatus 100 is connected with cable.
Please continue to refer to Fig. 2, further, the input terminal of the first operational amplifier 121 is for receiving the power supply of the first circuit
Voltage V01, V01Output end through the first operational amplifier 121 flows to temperature sensor 11, flows after the partial pressure of temperature sensor 11
Second circuit supply voltage V is converted into isolated amplifier 12202, V02Become V after the amplification of second operational amplifier 123T,
VTBy interface AC_DC2l to microcontroller 5.
It is appreciated that the temperature measuring principle of cable temperature temperature measurement circuit 1 is that temperature change is converted to voltage change, example
Such as, busbar temperature changes, and the resistance of temperature sensor 11 can change at this time, and then lead to V02And VTVariation, in this way, energy
The monitoring to cable temperature is enough realized by high voltage cable smart grounding box device 100.
It is former that Fig. 3 shows a kind of circuit of cable power supply voltage value observation circuit 2 provided by the utility model embodiment
Reason figure, as seen from the figure, cable power supply voltage value observation circuit 2 include third operational amplifier 21, third operational amplifier 21 with
Microcontroller 5 connects.
Please continue to refer to Fig. 3, the voltage value V of cableinThe first setting voltage is converted to through third operational amplifier 21
Value Vout1, Vout1Microcontroller 5 is flowed to, so, it is possible to realize the monitoring to cable power supply voltage.
It is former that Fig. 4 shows a kind of circuit of protective coverings of cable circulation measuring circuit 3 provided by the utility model embodiment
Reason figure, protective coverings of cable circulation measuring circuit 3 include four-operational amplifier 31 and the 5th operational amplifier 32, wherein the 4th
The output terminals A I4 of operational amplifier 31 and the output terminals A I5 of the 5th operational amplifier 32 are connect with microcontroller 5.
When protective coverings of cable circulation I is greater than setting electric current value, I flows to the 4th from the input terminal of four-operational amplifier 31
Operational amplifier 31 is converted to the second setting voltage value V through four-operational amplifier 31out2, and from four-operational amplifier 31
Output terminals A I4 be transmitted to microcontroller 5.
When protective coverings of cable circulation I is less than setting electric current value, I flows to the 5th from the input terminal of the 5th operational amplifier 32
Operational amplifier 32 is converted to the second setting voltage value V through the 5th operational amplifier 32out2, and from the 5th operational amplifier 32
Output terminals A I5 be transmitted to microcontroller 5.
It so, it is possible to realize effective monitoring to protective coverings of cable circulation.
Fig. 5 shows the circuit diagram of anti-theft warning circuit 4 provided by the utility model embodiment, as seen from the figure,
Anti-theft warning circuit 4 includes optocoupler 41, and the input terminal YXIN1 of optocoupler 41 is for receiving high voltage cable smart grounding box device 100
Access control voltage value Vs, work as VsWhen reaching conduction value, the output end and microcontroller 5 of optocoupler 41 are connected, VsDivide through optocoupler 41
Third setting voltage value V is converted to after pressureout3And it is transmitted to microcontroller 5, it so, it is possible to fill high voltage cable smart grounding box
The gate inhibition for setting 100 carries out effective monitoring, can connect, if the improper opening of gate inhibition, VsValue can increase, and then realize optocoupler 41
Output end and microcontroller 5 be connected, microcontroller 5 can receive Vout3To realize early warning.
Optionally, in the present embodiment, the first operational amplifier 121, second operational amplifier 123, third operation amplifier
The model OPA2317 of device 21, four-operational amplifier 31 and the 5th operational amplifier 32, the model of isolated amplifier 122
AMC1200, the model LP521 of optocoupler 41.
It is appreciated that the parameter of other components of the circuit disclosed in the present embodiment can carry out according to the actual situation
It chooses, therefore does not illustrate more herein, it should be understood that other components cooperate jointly with component provided by the present embodiment
To realize above-mentioned function.
To sum up, high voltage cable smart grounding box device 100 provided by the utility model embodiment, can be by corresponding
Circuit effectively monitors the temperature of cable, supply voltage, outer jacket circulation and is respectively converted into for microcontroller acquisition
Voltage value, so, it is possible to realize the various dimensions monitoring to cable, improve the safety of high voltage cable smart grounding box device.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of high voltage cable smart grounding box device characterized by comprising cable temperature measuring circuit, cable power supply electricity
Pressure value observation circuit, protective coverings of cable circulation measuring circuit, anti-theft warning circuit and microcontroller；
The cable temperature temperature measurement circuit includes temperature sensor and converting unit；The temperature sensor is set to the high pressure
Electrical cable intelligent is grounded the busbar of case apparatus, and the busbar is connect with earth cable；The temperature sensor and the converting unit
Connection, the converting unit are connect with the microcontroller；The converting unit by the temperature sensor for that will be divided
Voltage value later is transmitted to the microcontroller；
The cable power supply voltage value observation circuit is connect with the microcontroller, and the cable power supply voltage value observation circuit is used
In the voltage value of cable is converted to the first setting voltage value, the first setting voltage value is transmitted to the microcontroller
Device；
The protective coverings of cable circulation measuring circuit is connect with the microcontroller, and the protective coverings of cable circulation measuring circuit is used for
Protective coverings of cable circulation is converted into the second setting voltage value, the second setting voltage value is transmitted to the microcontroller；
The anti-theft warning circuit is connect with the microcontroller, and the anti-theft warning circuit is used to reach when access control voltage value
When conduction value, the access control voltage value is converted into third setting voltage value, third setting voltage value is transmitted to
The microcontroller.
2. high voltage cable smart grounding box device according to claim 1, which is characterized in that the converting unit includes the
One operational amplifier, isolated amplifier and second operational amplifier；
The input terminal of first operational amplifier is for receiving the first circuit voltage value；
Temperature sensor is connected to the output end of first operational amplifier and the input terminal of the isolated amplifier；
The output end of the isolated amplifier and the input terminal of second operational amplifier connect；
The output end of the second operational amplifier is connected to the microcontroller；
First operational amplifier is used to amplify the first circuit voltage value to obtain second circuit power supply electricity
Pressure value, the isolated amplifier are used to for the second circuit voltage value after dividing by the temperature sensor being transmitted to
The second operational amplifier；
The second operational amplifier is used to amplify the second circuit voltage value after partial pressure and be transmitted to described
Microcontroller.
3. high voltage cable smart grounding box device according to claim 2, which is characterized in that the temperature sensor is
PT100。
4. high voltage cable smart grounding box device according to claim 2, which is characterized in that first operational amplifier
It is OPA2317 with the second operational amplifier, the isolated amplifier is AMC1200.
5. high voltage cable smart grounding box device according to claim 1, which is characterized in that the monitoring of cable power supply voltage value
Circuit includes third operational amplifier；
The third operational amplifier is connect with the microcontroller；
The third operational amplifier is used to the voltage value of cable being converted to the first setting voltage value, and described first is set
Constant voltage value is transmitted to the microcontroller.
6. high voltage cable smart grounding box device according to claim 5, which is characterized in that the third operational amplifier
For OPA2317.
7. high voltage cable smart grounding box device according to claim 1, which is characterized in that the protective coverings of cable circulation
Measuring circuit includes the first current value measuring unit and the second current value measuring unit；
The first current value measuring unit includes four-operational amplifier；
The second current value measuring unit includes the 5th operational amplifier；
The output end of the output end of the four-operational amplifier and the 5th operational amplifier connects with the microcontroller
It connects；
When the protective coverings of cable circulation is greater than setting electric current value, the protective coverings of cable circulation is from the 4th operation amplifier
The input terminal of device flows to the four-operational amplifier, is converted to the second setting voltage through the four-operational amplifier
Value, and the microcontroller is transmitted to from the output end of the four-operational amplifier；
When the protective coverings of cable circulation is less than setting electric current value, the protective coverings of cable circulation is from the 5th operation amplifier
The input terminal of device flows to the 5th operational amplifier, is converted to the second setting voltage through the 5th operational amplifier
Value, and the microcontroller is transmitted to from the output end of the 5th operational amplifier.
8. high voltage cable smart grounding box device according to claim 7, which is characterized in that the four-operational amplifier
It is OPA2317 with the 5th operational amplifier.
9. high voltage cable smart grounding box device according to claim 1, which is characterized in that the anti-theft warning circuit packet
Include optocoupler；
The input terminal of the optocoupler is used to receive the access control voltage value of high voltage cable smart grounding box device, when the taboo is opened
When pass voltage value reaches the conduction value, the output end of the optocoupler is connected with the microcontroller, the access control voltage
Value is converted to third setting voltage value after optocoupler partial pressure and is transmitted to the microcontroller.
10. high voltage cable smart grounding box device according to claim 9, which is characterized in that the optocoupler is LP521.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122250.9U CN208984989U (en) | 2018-12-17 | 2018-12-17 | High voltage cable smart grounding box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122250.9U CN208984989U (en) | 2018-12-17 | 2018-12-17 | High voltage cable smart grounding box device |
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| Publication Number | Publication Date |
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| CN208984989U true CN208984989U (en) | 2019-06-14 |
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| CN201822122250.9U Active CN208984989U (en) | 2018-12-17 | 2018-12-17 | High voltage cable smart grounding box device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445357A (en) * | 2018-12-17 | 2019-03-08 | 江苏久创电气科技有限公司 | High voltage cable smart grounding box device |
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2018
- 2018-12-17 CN CN201822122250.9U patent/CN208984989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445357A (en) * | 2018-12-17 | 2019-03-08 | 江苏久创电气科技有限公司 | High voltage cable smart grounding box device |
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