CN109445357A - High voltage cable smart grounding box device - Google Patents
High voltage cable smart grounding box device Download PDFInfo
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- CN109445357A CN109445357A CN201811547547.8A CN201811547547A CN109445357A CN 109445357 A CN109445357 A CN 109445357A CN 201811547547 A CN201811547547 A CN 201811547547A CN 109445357 A CN109445357 A CN 109445357A
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- cable
- operational amplifier
- voltage value
- microcontroller
- circuit
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- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The present embodiments relate 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 present embodiments relate to technical field of power systems, in particular to a kind of high voltage cable smart grounding box
Device.
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.
Summary of the invention
In view of this, the present invention provides a kind of high voltage cable smart grounding box devices.
The embodiment of the invention provides a kind of high voltage cable smart grounding box devices, comprising: cable temperature measuring circuit, electricity
Cable 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 in an embodiment of the present invention, can be by corresponding circuit to the temperature of cable
The voltage value that degree, supply voltage, outer jacket circulation are effectively monitored and are respectively converted into for microcontroller acquisition, in this way,
It 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
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural block diagram of high voltage cable smart grounding box device provided by the embodiment of the present invention.
Fig. 2 is a kind of circuit diagram of cable temperature measuring circuit provided by the embodiment of the present invention.
Fig. 3 is a kind of circuit diagram of cable power supply voltage value observation circuit provided by the embodiment of the present invention.
Fig. 4 is a kind of circuit diagram of protective coverings of cable circulation measuring circuit provided by the embodiment of the present invention.
Fig. 5 is a kind of circuit diagram of anti-theft warning circuit provided by the embodiment of the present invention.
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
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment only
It is a part of the embodiments of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings
The component of embodiment can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
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 specifically defined or limited otherwise, term " setting ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
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, the solution that the discovery procedure of the above problem and the hereinafter embodiment of the present invention are proposed regarding to the issue above
Scheme all should be the contribution that inventor makes the present invention in process of the present invention.
Based on the studies above, the embodiment of the invention provides a kind of high voltage cable smart grounding box device, can be realized pair
The various dimensions of cable monitor.
Fig. 1 shows a kind of structural block diagram of high voltage cable smart grounding box device 100 provided by the embodiment of the present invention,
As seen from the figure, which includes cable temperature measuring circuit 1, the monitoring of cable power supply voltage value
Circuit 2, protective coverings of cable circulation measuring circuit 3, anti-theft warning circuit 4 and microcontroller 5, wherein cable temperature measuring circuit
1, cable power supply voltage value observation circuit 2, protective coverings of cable circulation measuring circuit 3 and anti-theft warning circuit 4 with microcontroller 5
Connection, can temperature to cable, supply voltage, outer jacket circulation effectively monitored and be respectively converted into for microcontroller
Voltage value can be sent to host computer by way of GPRS wireless telecommunications and carried out by the voltage value of acquisition, optionally, microcontroller 5
Real-time monitoring so, it is possible to realize the various dimensions monitoring to cable, and further, anti-theft warning circuit 5 can be improved high-voltage electricity
The safety of cable smart grounding case apparatus 100.It will be described further below for each circuit:
Referring to Fig. 2, for a kind of circuit diagram of cable temperature temperature measurement circuit 1 provided by the embodiment of the present invention, by
Figure is as it can be seen that cable temperature temperature measurement circuit 1 includes temperature sensor 11 and converting unit, wherein converting unit includes the first operation
Amplifier 121, isolated amplifier 122 and second operational amplifier 123.Further, temperature sensor 11 is PT100, is one
Thermistor, temperature sensor 11 are set to the busbar in high voltage cable smart grounding box device 100, it will be understood that high-voltage electricity
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.
Fig. 3 shows a kind of circuit diagram of cable power supply voltage value observation circuit 2 provided by the embodiment of the present invention,
As seen from the figure, cable power supply voltage value observation circuit 2 includes third operational amplifier 21, third operational amplifier 21 and microcontroller
Device 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.
Fig. 4 shows a kind of circuit diagram of protective coverings of cable circulation measuring circuit 3 provided by the embodiment of the present invention,
Protective coverings of cable circulation measuring circuit 3 includes four-operational amplifier 31 and the 5th operational amplifier 32, wherein the 4th operation is put
The big output terminals A I4 of the device 31 and output terminals A I5 of the 5th operational amplifier 32 is 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 embodiment of the present invention, as seen from the figure, antitheft
Warning circuit 4 includes optocoupler 41, and the input terminal YXIN1 of optocoupler 41 is used to receive the door of high voltage cable smart grounding box device 100
Prohibit switching voltage value Vs, work as VsWhen reaching conduction value, the output end and microcontroller 5 of optocoupler 41 are connected, VsAfter the partial pressure of optocoupler 41
Be converted to third setting voltage value Vout3And it is transmitted to microcontroller 5, it so, it is possible to high voltage cable smart grounding box device
100 gate inhibition 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 are connected, and 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 embodiment of the present invention can pass through corresponding circuit
The electricity for microcontroller acquisition is effectively monitored and is respectively converted into the temperature of cable, supply voltage, outer jacket circulation
Pressure 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 foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
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 |
|---|---|---|---|
| CN201811547547.8A CN109445357A (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 |
|---|---|---|---|
| CN201811547547.8A CN109445357A (en) | 2018-12-17 | 2018-12-17 | High voltage cable smart grounding box device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109445357A true CN109445357A (en) | 2019-03-08 |
Family
ID=65559527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811547547.8A Withdrawn CN109445357A (en) | 2018-12-17 | 2018-12-17 | High voltage cable smart grounding box device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109445357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115389855A (en) * | 2022-10-26 | 2022-11-25 | 高勘(广州)技术有限公司 | Method and system for monitoring cable equipment |
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| CN102590670A (en) * | 2012-02-22 | 2012-07-18 | 广东电网公司珠海供电局 | High voltage cable smart grounding box |
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| JP2015108618A (en) * | 2013-10-25 | 2015-06-11 | 一般財団法人 関西電気保安協会 | High pressure insulation monitor method and device |
| CN205608124U (en) * | 2016-03-17 | 2016-09-28 | 国网吉林省电力有限公司白山供电公司 | High tension cable trouble on -line monitoring device |
| CN106093720A (en) * | 2016-06-08 | 2016-11-09 | 国家电网公司 | High-voltage cable state monitoring system based on protective grounding case and its implementation |
| CN106814243A (en) * | 2015-11-30 | 2017-06-09 | 国网辽宁省电力有限公司沈阳供电公司 | City cable line-to-ground circulation on-Line Monitor Device |
| CN206876810U (en) * | 2017-07-03 | 2018-01-12 | 杭州欣美成套电器制造有限公司 | A kind of high-voltage intelligent grounding box on-Line Monitor Device |
| CN208984989U (en) * | 2018-12-17 | 2019-06-14 | 江苏久创电气科技有限公司 | High voltage cable smart grounding box device |
-
2018
- 2018-12-17 CN CN201811547547.8A patent/CN109445357A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590670A (en) * | 2012-02-22 | 2012-07-18 | 广东电网公司珠海供电局 | High voltage cable smart grounding box |
| JP2015108618A (en) * | 2013-10-25 | 2015-06-11 | 一般財団法人 関西電気保安協会 | High pressure insulation monitor method and device |
| CN203811740U (en) * | 2014-05-07 | 2014-09-03 | 国网山东省电力公司青岛供电公司 | Grounding monitoring device for metal sheathes of 110 kV and more than 110 kV cables |
| CN106814243A (en) * | 2015-11-30 | 2017-06-09 | 国网辽宁省电力有限公司沈阳供电公司 | City cable line-to-ground circulation on-Line Monitor Device |
| CN205608124U (en) * | 2016-03-17 | 2016-09-28 | 国网吉林省电力有限公司白山供电公司 | High tension cable trouble on -line monitoring device |
| CN106093720A (en) * | 2016-06-08 | 2016-11-09 | 国家电网公司 | High-voltage cable state monitoring system based on protective grounding case and its implementation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115389855A (en) * | 2022-10-26 | 2022-11-25 | 高勘(广州)技术有限公司 | Method and system for monitoring cable equipment |
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