CN206339613U - Cable partial discharge monitoring system and high frequency sensors - Google Patents
Cable partial discharge monitoring system and high frequency sensors Download PDFInfo
- Publication number
- CN206339613U CN206339613U CN201621476223.6U CN201621476223U CN206339613U CN 206339613 U CN206339613 U CN 206339613U CN 201621476223 U CN201621476223 U CN 201621476223U CN 206339613 U CN206339613 U CN 206339613U
- Authority
- CN
- China
- Prior art keywords
- cable
- acquisition module
- data acquisition
- high frequency
- sensor assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model provides a kind of cable partial discharge monitoring system and high frequency sensors, is related to technical field of electric power.The system includes sensor assembly, data acquisition module and server.The sensor assembly is installed on the joint of cable, and the sensor assembly is electrically connected with the data acquisition module, and the data acquisition module is connected with server communication.The sensor assembly is used to, when the joint of the cable produces partial discharge phenomenon, gather the discharge current signal that the joint of the cable is produced.The data acquisition module is used for the discharge current signal for obtaining the sensor assembly collection, and the discharge current signal is converted into digital data transmission to the server.The server is used to receive the data of the data acquisition module transmission and analyzed, and realizes that remote real-time monitoring many places monitor place with this.
Description
Technical field
The utility model is related to technical field of electric power, is kept pouring in particular to a kind of cable partial discharge monitoring system and height
Sensor.
Background technology
Shelf depreciation belongs to insulating gas and electrically punctured, and puncturing for SF6 gases causes to flow through (a ns in short-term in conductor
Level) electric current.Electric current flows through the feature resistance of gas insulated combined electric appliance equipment (Gas Insulated Switchgear, GIS)
It is anti-, a pulse voltage is produced on conductor, is spread from partial discharge source.Due to Partial discharge signal rise time very it is short (<
1ns), frequency band it is very wide (>1GHz), cause electric resonance in GIS cavitys in communication process, excite electromagnetic wave.After generation partial discharge, from
Sub- gas passage rapid expansion, produces sound pressure ripple, and the light transmitting for also having excited atom to produce supervened is hit with chemistry
Wear product.Thus, the influence of partial discharge is many, have physics, chemistry and electric.At present, existing shelf depreciation
Monitoring system can not be monitored for paroxysmal discharges phenomenon, it is impossible to which remote real-time monitoring many places monitor place.
Utility model content
The purpose of this utility model is to provide a kind of cable partial discharge monitoring system and high frequency sensors, on it can improve
State problem.To achieve these goals, the technical solution adopted in the utility model is as follows：
In a first aspect, the utility model embodiment provides a kind of cable partial discharge monitoring system, including sensor assembly, number
According to acquisition module and server.The sensor assembly is installed on the joint of cable, the sensor assembly and the number
Electrically connected according to acquisition module, the data acquisition module is connected with server communication.The sensor assembly is used to work as institute
When the joint for stating cable produces partial discharge phenomenon, the discharge current signal that the joint of the cable is produced is gathered.It is described
Data acquisition module is used for the discharge current signal for obtaining the sensor assembly collection, and the discharge current signal is changed
For digital data transmission to the server.The server is used to receive the data of the data acquisition module transmission and divided
Analysis.
In the utility model preferred embodiment, above-mentioned cable is A phase cables.
In the utility model preferred embodiment, the sensor module includes multiple high frequency sensors, each described
High frequency sensors are respectively arranged in each joint of the cable.
In the utility model preferred embodiment, above-mentioned high frequency sensors include magnetic core, Rogovski coil, filtering
Sample circuit and electromagnetic shielding box, the Rogovski coil around on the magnetic core, the filtering sampling circuit with
The magnetic core electrical connection, the Rogovski coil, the magnetic core and the filtering sampling circuit are mounted on the electricity
In magnetic screen box.
In the utility model preferred embodiment, the frequency band range of above-mentioned high frequency sensors is 0-50MHz.
In the utility model preferred embodiment, above-mentioned data acquisition module includes data preprocessing module and network
Transceiver module, each passage of described data preprocessing module one end is electrically connected with each high frequency sensors respectively, described
The other end of data preprocessing module one end is electrically connected with the network transceiving module, and the data preprocessing module is used for basis
The discharge current signal that the sensor assembly collects is obtained to be deposited after conditioning, amplification and analog-to-digital conversion process
The network transceiving module is stored up, handles and is transmitted to, the network transceiving module is used to that the data preprocessing module will to be received
Data the server is sent to by network.
In the utility model preferred embodiment, the highest sample rate of above-mentioned data acquisition module is 100Mbps.
In the utility model preferred embodiment, the simulation input bandwidth range of above-mentioned data acquisition module is
100KHz-100MHz。
In the utility model preferred embodiment, said system also include fiber optical transceiver, the fiber optical transceiver with
The data acquisition module coupling, the fiber optical transceiver is used to that the discharge current after the data acquisition module processing will to be received
Signal is transmitted through the fiber to the server.
Second aspect, the utility model embodiment provide a kind of high frequency sensors, the high frequency sensors include magnetic core,
Rogovski coil, filtering sampling circuit and electromagnetic shielding box, the Rogovski coil around on the magnetic core,
The filtering sampling circuit is electrically connected with the magnetic core, the Rogovski coil, the magnetic core and the filtering sampling
Circuit is mounted in the electromagnetic shielding box.
The utility model embodiment provide cable partial discharge monitoring system, including sensor assembly, data acquisition module with
And server.The sensor assembly is installed on the joint of the cable, the sensor assembly and the data acquisition module
Block is electrically connected, and the data acquisition module is connected with server communication.The sensor assembly is used for when the cable
When joint produces partial discharge phenomenon, the discharge current signal that the joint of the cable is produced is gathered.The data acquisition
Module is used for the discharge current signal for obtaining the sensor assembly collection, and the discharge current signal is converted into digital letter
Number transmit to the server.The server is used to receive the data of the data acquisition module transmission and analyzed, with this
Realize that remote real-time monitoring many places monitor place.
Brief description of the drawings
, below will be to be used needed for embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
The structured flowchart for the cable partial discharge monitoring system that Fig. 1 provides for the utility model first embodiment；
The structural representation for the cable partial discharge monitoring system that Fig. 2 provides for the utility model first embodiment；
The electric discharge of the high frequency sensors for the cable partial discharge monitoring system that Fig. 3 provides for the utility model first embodiment
The schematic diagram of the impulse response of signal；
The high frequency sensors for the cable partial discharge monitoring system that Fig. 4 provides for the utility model the utility model first embodiment
Electric discharge signal frequency spectrum schematic diagram；
The flow chart for the cable partial discharge monitoring method that Fig. 5 provides for the utility model second embodiment.
In figure：100- cable partial discharge monitoring systems；110- sensor assemblies；The high frequency sensors of 112- first；114- second
High frequency sensors；The high frequency sensors of 116- the 3rd；120；Data acquisition module；122- data preprocessing modules；122a- first leads to
Road；122b- second channels；122c- third channels；124- network transceiving modules；130- servers；132- junction boxs；140-A phases
Cable；140a- cable connectors；142- ground wires；The coaxial lines of 150- first；The coaxial lines of 152- second；154- triaxs；
160- fiber optical transceivers；162- optical fiber.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to which explanation, term " first ", " second " etc. are only used for distinguishing description in description of the present utility model,
And it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
In modern power systems, high-tension cable is counted as one of important component.High-tension cable has good electricity
Gas performance, hot property and mechanical performance etc. are many a little, in recent years power system each voltage class transmission of electricity and distribution
It is obtained for and is widely applied in network.But high-tension cable also has the inevitable defect of its own, such as works as high-tension electricity
Cable is after long-term operation, and its insulated part is because long-term by the shadow from soil physical chemistry operation, moisture or moisture etc.
Ring, it is easy to corroded and cause the defect in insulation, so as to ultimately result in puncturing for high-voltage cable insulating.
According to incompletely statistics, the high-tension cable caused by the failure of cable accessory (including transition joint and terminal fitting)
The ratio of operation troubles is up to 39%.The change of partial discharge of high-voltage cable joint amount can embody high-voltage cable insulating situation
Situation, the size of partial discharge quantity also reflects the extent of damage of cable insulation.After being broken down when high-tension cable, and exactly
Investigation is caused to get up because of its environment laid very difficult.Therefore, partial discharge of high-voltage cable joint is supervised online
Survey, the damage situations of insulation can be found in time, be the important means for ensureing power cable reliability service, with very important
Meaning.
In consideration of it, the utility model embodiment provides a kind of cable partial discharge monitoring system and method, realized remotely with this
Monitoring cable connector many places monitoring place, ensures cable reliability service in real time.
First embodiment
Fig. 1 is refer to, the utility model embodiment provides a kind of cable partial discharge monitoring system 100, and it includes sensor die
Block 110, data acquisition module 120 and server 130.The sensor assembly 110 is installed on the joint of cable.It is described to pass
Sensor module 110 is electrically connected with the data acquisition module 120, and the data acquisition module 120 is communicated with the server 130
Connection.
The sensor assembly 110 is used to, when the joint of the cable produces partial discharge phenomenon, gather the electricity
The discharge current signal that the joint of cable is produced.Under electric field action, the phenomenon of discharge short occurs for subregion in insulator
Referred to as shelf depreciation, but do not form path between the electrodes.
The sensor assembly 110 includes multiple high frequency sensors.In actual monitoring work, the monitoring place of cable has
It is N number of, correspondingly, high frequency sensors at least need it is N number of, be respectively placed in cable each monitoring place.In the present embodiment, often
The individual high frequency sensors are respectively arranged in each joint of the cable.
The high frequency sensors include magnetic core, Rogovski coil, filtering sampling circuit and electromagnetic shielding box.It is described
Rogovski coil is around on the magnetic core.The magnetic core has high magnetic permeability.The filtering sampling circuit with it is described
Magnetic core is electrically connected, and is installed in the electromagnetic shielding box.The design of the filtering sampling circuit is sensitive in order to take into account measurement
The requirement of degree and signal response band.In order to suppress to disturb, improve signal to noise ratio, and in view of rain-proof, dust-proof etc., sieve is high
Paderewski coil, magnetic core and filtering sampling circuit are all arranged in the electromagnetic shielding box.The electromagnetic shielding box includes gold
Category electromagnetic shielding box.In addition, the high frequency sensors are in hollow circular ring shape, to be sheathed on cable.
Test incorporated by reference to reference picture 2 and Fig. 3, Fig. 2 high frequency sensors provided for the utility model first embodiment is put
The schematic diagram of the impulse response of electric signal, the electric discharge letter for the high frequency sensors that Fig. 3 the utility model first embodiment is provided
Number frequency spectrum schematic diagram.From the figure 3, it may be seen that the frequency band range of the high frequency sensors is 0-50MHz.
Three-phase alternating current is a kind of mode of movement of electric energy, referred to as three-phase electricity.Three-phase alternating-current supply, is by three frequencies
Identical, amplitude is equal, phase successively 120 ° of mutual deviation exchange potential composition power supply.The advantage of three-phase alternating current has saving material
Material, it is simple to operate and more practical, be widely used in distribution and directly provide electric power for the higher equipment of power.Between phase and phase
Voltage be referred to as line voltage, appoint two-phase between voltage be all 380V.Mutually the voltage between neutral point is referred to as phase voltage, any
Voltage with respect to neutral point is all 220V.The color A phases of three-phase electricity are yellow, and B phases are green, and C phases are red, are had at present following
Several calls：A, B, C or L1, L2, L3 or U, V, W, are sequentially just as.
Fig. 4 is refer to, in order to improve the accuracy and practicality of cable partial discharge monitoring system 100, sensor assembly 110 is wrapped
Include multiple high frequency sensors, multiple high frequency sensors include the first high frequency sensors 112, the second high frequency sensors 114 and the
Three high frequency sensors 116.First high frequency sensors 112 are sheathed at the cable connector 140a of A phases cable 140.Described
Two high frequency sensors 114 are sheathed at the cable connector 140a of A phases cable 140.3rd high frequency sensors 116 are sheathed on ground wire
142。
The data acquisition module 120 is used to obtaining the discharge current signal that the sensor assembly 110 is gathered, and by institute
State discharge current signal and be converted to digital data transmission to the server 130.
The data acquisition module 120 includes data preprocessing module 122 and network transceiving module 124.The data
Each passage of the one end of pretreatment module 122 is electrically connected with each high frequency sensors respectively, the data preprocessing module
The other end of 122 one end is electrically connected with the network transceiving module 124.
In the present embodiment, one end of the data preprocessing module 122 includes three passages, i.e. first passage 122a,
Second channel 122b is with third channel 122c.First high frequency sensors 112 are connected to described by the first coaxial line 150
One passage 122a.Second high frequency sensors 114 are connected to the second channel 122b by the second coaxial line 152.It is described
3rd high frequency sensors 116 are connected to the third channel 122c by triax 154.The data preprocessing module
122 can include signal conditioning circuit, amplifying circuit and analog to digital conversion circuit.The data preprocessing module 122 is according to obtaining
Take each road electric discharge electricity that the first high frequency sensors 112, the second high frequency sensors 114 and the 3rd high frequency sensors 116 are collected
Stream signal is stored, handled and is transmitted to the network transceiving module after conditioning, amplification and analog-to-digital conversion process
124.And then, the data of the reception data preprocessing module 122 are sent to institute by the network transceiving module 124 by network
State server 130.
The data acquisition module 120 can be data collecting card.The resolution ratio of the analog-to-digital conversion of the data collecting card
For 12.The highest sample rate of the data collecting card is 100Mbps.Sampling rate is 100MS/s.Each passage storage
16MB.Triggering mode has internal trigger, external trigger and along triggering.Rated power is 10W.Outside dimension：240mm×240mm×
100mm.Power supplyExternal interface is RJ45 interfaces.Operating temperature is -25 DEG C -75 DEG C.Classification of waterproof is IP68.
Communication protocol is TCP/IP procotols.The simulation input bandwidth range of the data acquisition module 122 is 100KHz-
100MHz。
Further, the cable partial discharge monitoring system 100 also includes fiber optical transceiver 160, the fiber optical transceiver 160
Coupled with the data acquisition module 120.The fiber optical transceiver 160 is handled for that will receive the data acquisition module 120
Discharge current signal afterwards is transmitted to the server 130 by optical fiber 162.Optical fiber 162 is arranged at ADSS electric power special optical cables
It is interior.
Fiber optical transceiver 160 be a kind of optical signal by short-range twisted pair telecommunications number and long range be interchangeable with
Too net transmission media converting unit, is also referred to as optical-electrical converter (Fiber Converter).Optical-electrical converter is passed in data
Hundred meters of limitations of Ethernet cable are broken on defeated, by high performance exchange chip and the caching of Large Copacity, real real
While existing clog-free transmission switching performance, the functions such as balanced flow, isolation conflict and detection mistake are additionally provided, it is ensured that data
High security and stability during transmission.
In addition, the cable partial discharge monitoring system 100 can also include junction box 132.Junction box 132 is used for high by first
The data that video sensor 112, the second high frequency sensors 114 and the 3rd high frequency sensors 116 are transmitted by optical fiber 162 are divided
Road is uploaded to server 130.
Junction box 132 is the terminal of distribution cable or optical cable, connection wiring cable or optical cable and subscribers' line part, to master
Main line carries out branch, with important effect.
In order to more intuitively know the state of insulation of cable, the cable partial discharge monitoring system 100 can also include alarm
Module.The alarm module is used for when 130 pairs of server monitors that each joint local discharge signal of cable is analyzed
When, there is exception in the discharge signal in monitoring place, is such as higher than default normal amplitude value, is then alarmed.The alarm module
Can be sound and light alarm, such as buzzer.
The server 130 is used to receive the data of the transmission of data acquisition module 120 and analyzed.Specifically, institute
State server 130 and receive the first high frequency sensors 112, the second high frequency sensors 114 and the collection of the 3rd high frequency sensors 116
Data, carry out anti-interference process, spectrum analysis, so that the insulation defect of long-range monitoring cable and joint in time, is the inspection of cable
Repair work and improve foundation.The many places joint monitoring place of remote real-time monitoring cable is realized simultaneously, ensures cable reliability service.
The cable partial discharge monitoring system 100 that the utility model embodiment is provided, including sensor assembly 110, data acquisition
Module 120 and server 130.The sensor assembly 110 is installed on the joint of the cable, the sensor assembly
110 are electrically connected with the data acquisition module 120, and the data acquisition module 120 is connected with the server 130 communication.Institute
Stating sensor assembly 110 is used to, when the joint of the cable produces partial discharge phenomenon, gather the joint of the cable
The discharge current signal of generation.The data acquisition module 120 is used to obtain the discharge current that the sensor assembly 110 is gathered
Signal, and the discharge current signal is converted into digital data transmission to the server 130.The server 130 is used for
Receive the data of the transmission of data acquisition module 120 and analyze, many places joint of remote real-time monitoring cable is realized with this
Monitor place.
Second embodiment
Fig. 5 is refer to, the present embodiment provides a kind of cable partial discharge monitoring method, the cable applied to above-mentioned first embodiment
Partial discharge monitoring system 100, methods described includes：
Step S500：The sensor assembly is when the joint of the cable produces partial discharge phenomenon, and collection is described
The discharge current signal that the joint of cable is produced；
Specifically, the sensor assembly 110 includes the first high frequency sensors 112, the second high frequency sensors 114 and the
Three high frequency sensors 116.When the joint of the cable produces partial discharge phenomenon, the first high frequency sensors 112, second are high
The discharge current letter that each joint that the high frequency sensors 116 of video sensor 114 and the 3rd gather the cable respectively is produced
Number；
Step S510：The data acquisition module obtains the discharge current signal of the sensor assembly collection, and by institute
State discharge current signal and be converted to digital data transmission to the server；
Specifically, the data acquisition module 120 includes data preprocessing module 122 and network transceiving module 124.Institute
State data preprocessing module 122 and kept pouring according to the first high frequency sensors 112, the second high frequency sensors 114 and the 3rd height is obtained
Each road discharge current signal that sensor 116 is collected by conditioning, amplification and analog-to-digital conversion process after stored, handle and
It is transmitted to the network transceiving module 124.And then, the network transceiving module 124 will receive the data preprocessing module 122
Data the server 130 is sent to by network.
Step S520：The server is used to receive the data of the data acquisition module transmission and analyzed.
Specifically, first high frequency sensors 112 of the reception of server 130, the second high frequency sensors 114 and the 3rd are high
The data that video sensor 116 is gathered, carry out anti-interference process, spectrum analysis.
It should be noted that it is apparent to those skilled in the art that, for convenience and simplicity of description, on
The specific work process of the cable partial discharge monitoring method of description is stated, the corresponding process in aforementioned system embodiment is may be referred to,
This is repeated no more.
The cable partial discharge monitoring method that the utility model embodiment is provided works as the cable by the sensor assembly 110
Joint when producing partial discharge phenomenon, gather the discharge current signal that the joint of the cable is produced；The data are adopted
Collection module 120 obtains the discharge current signal that the sensor assembly 110 is gathered, and the discharge current signal is converted into number
Word signal transmission is to the server 130；The server 130 is used to receive the data that the data acquisition module 120 is sent
And analyze.The many places joint monitoring place of remote real-time monitoring cable is realized with this, cable reliability service is ensured.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modifications, equivalent substitutions and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of cable partial discharge monitoring system, it is characterised in that including sensor assembly, data acquisition module and server,
The sensor assembly is installed on the joint of cable, and the sensor assembly is electrically connected with the data acquisition module, described
Data acquisition module is connected with server communication；
The sensor assembly is used to, when the joint of the cable produces partial discharge phenomenon, gather the joint of the cable
Locate the discharge current signal produced；
The data acquisition module is used for the discharge current signal for obtaining sensor assembly collection, and by the discharge current
Signal is converted to digital data transmission to the server；
The server is used to receive the data of the data acquisition module transmission and analyzed.
2. system according to claim 1, it is characterised in that the cable is A phase cables.
3. system according to claim 1, it is characterised in that the sensor assembly includes multiple high frequency sensors, often
The individual high frequency sensors are respectively arranged in each joint of the cable.
4. system according to claim 3, it is characterised in that the high frequency sensors include magnetic core, Rogovski line
Circle, filtering sampling circuit and electromagnetic shielding box, the Rogovski coil is around on the magnetic core, the filtering sampling
Circuit is electrically connected with the magnetic core, and the Rogovski coil, the magnetic core and the filtering sampling circuit are mounted on
In the electromagnetic shielding box.
5. system according to claim 3, it is characterised in that the frequency band range of the high frequency sensors is 0-50MHz.
6. system according to claim 3, it is characterised in that the data acquisition module include data preprocessing module with
And network transceiving module, each passage of described data preprocessing module one end is electrically connected with each high frequency sensors respectively
Connect, the other end of described data preprocessing module one end is electrically connected with the network transceiving module, the data preprocessing module
For according to obtaining discharge current signal that the sensor assembly collects after conditioning, amplification and analog-to-digital conversion process
The network transceiving module is stored, handled and is transmitted to, the network transceiving module is located in advance for that will receive the data
The data of reason module are sent to the server by network.
7. system according to claim 1, it is characterised in that the highest sample rate of the data acquisition module is
100Mbps。
8. system according to claim 1, it is characterised in that the simulation input bandwidth range of the data acquisition module is
100KHz-100MHz。
9. system according to claim 1, it is characterised in that the system also includes fiber optical transceiver, the optical fiber is received
Hair device is coupled with the data acquisition module, and the fiber optical transceiver is used to that putting after the data acquisition module processing will to be received
Electric current signal is transmitted through the fiber to the server.
10. a kind of high frequency sensors, it is characterised in that the high frequency sensors are adopted including magnetic core, Rogovski coil, filtering
Sample circuit and electromagnetic shielding box, the Rogovski coil is around on the magnetic core, the filtering sampling circuit and institute
Magnetic core electrical connection is stated, the Rogovski coil, the magnetic core and the filtering sampling circuit are mounted on the electromagnetism
In shielding box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476223.6U CN206339613U (en) | 2016-12-29 | 2016-12-29 | Cable partial discharge monitoring system and high frequency sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476223.6U CN206339613U (en) | 2016-12-29 | 2016-12-29 | Cable partial discharge monitoring system and high frequency sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206339613U true CN206339613U (en) | 2017-07-18 |
Family
ID=59304314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476223.6U Expired - Fee Related CN206339613U (en) | 2016-12-29 | 2016-12-29 | Cable partial discharge monitoring system and high frequency sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206339613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526440A (en) * | 2016-12-29 | 2017-03-22 | 重庆奥海辉龙大数据有限公司 | Cable partial discharge monitoring system and method |
| CN108365492A (en) * | 2018-01-22 | 2018-08-03 | 孙国芳 | A kind of water-proof cable medial head manufacture craft |
| CN115032512A (en) * | 2022-08-15 | 2022-09-09 | 国网天津市电力公司电力科学研究院 | GIS basin-type insulator on-line detection sensor |
-
2016
- 2016-12-29 CN CN201621476223.6U patent/CN206339613U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526440A (en) * | 2016-12-29 | 2017-03-22 | 重庆奥海辉龙大数据有限公司 | Cable partial discharge monitoring system and method |
| CN108365492A (en) * | 2018-01-22 | 2018-08-03 | 孙国芳 | A kind of water-proof cable medial head manufacture craft |
| CN115032512A (en) * | 2022-08-15 | 2022-09-09 | 国网天津市电力公司电力科学研究院 | GIS basin-type insulator on-line detection sensor |
| CN115032512B (en) * | 2022-08-15 | 2022-10-28 | 国网天津市电力公司电力科学研究院 | GIS basin-type insulator on-line detection sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203479966U (en) | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear | |
| Artale et al. | A new low cost power line communication solution for smart grid monitoring and management | |
| CN106841735B (en) | Electric power collector and energy consumption monitoring method thereof | |
| CN206339613U (en) | Cable partial discharge monitoring system and high frequency sensors | |
| CN107976602A (en) | High-tension cable metal outer jacket grounding circulation on-line monitoring system | |
| CN202693740U (en) | GIS (Geographic Information System) partial discharge online monitoring comprehensive processing unit | |
| CN202676858U (en) | Partial discharge test system under impulse voltage | |
| CN102891533B (en) | A kind of 800kV intelligent breaker | |
| CN203658526U (en) | Live-line detection device used for partial discharging of distribution cable | |
| CN106771935A (en) | A kind of extra-high video sensor drawn game portion discharge on-line monitoring system | |
| CN104897983A (en) | Substation grounding grid impact diffusion characteristic test device | |
| CN105182199A (en) | High-voltage cable partial discharge online monitoring and discharge position positioning system and method | |
| CN113985223A (en) | Multi-parameter intelligent identification system of high-voltage dry-type sleeve and application | |
| CN110579693A (en) | High GIS partial discharge online monitoring device and method based on wireless transmission | |
| CN105911443A (en) | Online measurement system for partial discharge of cable middle joint based on clamp-shaped coaxial capacitor | |
| CN106526440A (en) | Cable partial discharge monitoring system and method | |
| CN102305903B (en) | Partial discharge detection method for pulse current of electrified operation single phase integrated gas insulated switchgear (GIS) | |
| CN103713244A (en) | Electrified detection device and method used for local discharging of distributing cables | |
| CN108732478A (en) | Partial discharge of switchgear on-line monitoring system based on superfrequency punching current sensor and method | |
| CN102147444A (en) | Planar inductive sensor for detecting internal discharge of electric device and detection method | |
| CN105158657A (en) | High-voltage switch cabinet partial discharge online monitoring system | |
| CN202720281U (en) | On-line monitoring device for capacitive equipment of transformer substation | |
| CN108375933A (en) | A kind of 10kV substation equipment maintenance and repairs management system monitored in real time | |
| CN107290583A (en) | A kind of transformer high frequency partial electric discharge and power-frequency earthing electric current monitoring device combining | |
| CN103439550A (en) | Electricity stealing prevention device capable of being mounted in electrified mode and mounting method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20201229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |