CN109309514B - Power line carrier signal sensor - Google Patents
Power line carrier signal sensor Download PDFInfo
- Publication number
- CN109309514B CN109309514B CN201811259514.3A CN201811259514A CN109309514B CN 109309514 B CN109309514 B CN 109309514B CN 201811259514 A CN201811259514 A CN 201811259514A CN 109309514 B CN109309514 B CN 109309514B
- Authority
- CN
- China
- Prior art keywords
- connector
- carrier signal
- sensor
- voltage capacitor
- rubber tube
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 239000000084 colloidal system Substances 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 5
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/22—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a power carrier signal sensor which comprises a connector lug, a lightning protection colloid and a sensor shell, wherein the connector lug, the lightning protection colloid and the sensor shell are sequentially connected, the lightning protection colloid comprises a rubber tube with a hollow structure and a plurality of umbrella covers fixed on the outer side of the rubber tube, a high-voltage capacitor is arranged in the rubber tube, a signal connector and a ground wire connector are arranged on the sensor shell, a connecting piece for fixedly connecting a circuit to be detected is arranged at the bottom end of the sensor shell, a carrier signal processing circuit is arranged in the sensor shell, the connector lug, the high-voltage capacitor and the input end of the carrier signal processing circuit are sequentially connected in an electric connection mode, the grounding end of the carrier signal processing circuit is connected with the ground wire connector, and the output end of the carrier signal processing circuit and the signal connector are used for carrying out carrier signal transmission in a coupling mode. The connector lug and the connecting piece can be directly fixedly connected with the circuit to be detected, and meanwhile, the communication capacity of the sensor is effectively improved by adopting a mode of directly connecting the circuit to be detected to acquire signals.
Description
Technical Field
The invention relates to the field of sensors, in particular to a power carrier signal sensor.
Background
For power systems, safe and stable operation is a major concern in power systems. In order to ensure the normal operation of the power system, a related detection device is often required, and the power carrier signal sensor is one of the detection devices.
On the one hand, the carrier signal sensor used in the indoor in the market simply relies on the induction of the high-frequency magnetic core to acquire a signal, and the signal is acquired by indirectly connecting the high-voltage wire, so that the communication range is limited and the communication rate is unstable. On the other hand, the conventional indoor inductive sensor is limited in mounting manner.
Disclosure of Invention
In order to solve the technical problems, the invention provides a power carrier signal sensor, which solves the problems of weak communication capability and difficult installation mode of the existing pure inductance carrier signal sensor.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a power line carrier signal sensor, includes connector lug, lightning protection colloid and the sensor housing that connects gradually, the lightning protection colloid includes the rubber tube and fixes a plurality of chute cover in the rubber tube outside, the rubber tube adopts hollow structure and is provided with a plurality of through-hole on the rubber tube, be provided with high-voltage capacitor in the rubber tube, be provided with signal connection and ground wire joint on the sensor housing, the bottom of sensor housing is provided with the connecting piece that is used for waiting to detect circuit fixed connection, ground wire joint links to each other with the connecting piece with electric connection mode, the inside of sensor housing is provided with carrier signal processing circuit, carrier signal processing circuit includes PLC signal processor, inductance L and discharge tube, connector lug, high-voltage capacitor and PLC signal processor are connected with electric connection mode in proper order, inductance L connects in parallel at PLC signal processor's both ends, inductance L links to each other with the ground wire joint with high-voltage capacitor connected one end, PLC signal processor carries out signal transmission through coupling mode with signal connection, the one end of discharge tube is connected between high-voltage signal processor and the other end and PLC signal processor, and the ground wire joint links to each other.
Further, the connecting piece comprises a first connecting nut and a first screw.
Further, the signal connector adopts a TNC connector.
Further, the sensor housing comprises a housing and a cover plate, a circuit board is arranged in the housing, and the PLC signal processor, the inductor L and the discharge tube are all fixed on the circuit board.
Further, one end of the signal connector is fixed on the circuit board, the other end of the signal connector extends out of the shell, one end of the ground wire connector is also fixed on the circuit board, and the other end of the ground wire connector penetrates through the cover plate and extends out of the cover plate.
Further, the cover plate is further provided with a second connecting nut, the second connecting nut is used for connecting the input end of the carrier signal processing circuit and the high-voltage capacitor, the second connecting nut is arranged on the cover plate in a penetrating mode, one end of the second connecting nut is fixed on the circuit board, and the other end of the second connecting nut extends out of the cover plate to be connected with the high-voltage capacitor.
Further, still be provided with first connector, second connector and second screw rod in the rubber tube, first connector is used for connecting the one end of connector lug and high-voltage capacitor, the second connector is used for connecting the other end of high-voltage capacitor and the one end of second screw rod, the other end of second screw rod and the other end threaded connection of second coupling nut.
The beneficial effects of the invention are as follows: the carrier signal processing circuit is utilized to detect the carrier signal of the line to be detected and output the carrier signal to related detection equipment through the signal connector.
In addition, in the lightning protection measure, the surface of lightning protection colloid is equipped with a plurality of lightning protection canopy, and carrier signal processing circuit still is provided with the discharge tube, can throw off under high pressure high current state voluntarily, has greatly promoted its lightning protection performance.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic exploded view of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the structure of a preferred embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the concept, specific structure and technical effects thereof will be clearly and completely described below in connection with the embodiments and the drawings so as to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention.
Referring to fig. 1 and fig. 2, as a preferred embodiment, a power carrier signal sensor includes a connector lug 1, a lightning protection colloid and a sensor housing, which are sequentially connected, wherein the lightning protection colloid includes a rubber tube 21 and a plurality of umbrella covers 22 fixed on the outer side of the rubber tube 21 and coaxially distributed, the rubber tube 21 adopts a hollow structure, a plurality of through holes are formed in the rubber tube 21, the rubber tube 21 is provided with a plurality of through holes, so that creepage conditions in the detection process can be prevented, and a high-voltage capacitor 23 is arranged in the rubber tube 21, wherein the plurality of umbrella covers 22 include a first umbrella cover 221 and a second umbrella cover 222 which have different radiuses and are arranged on the rubber tube 21 at intervals, so that lightning protection effect can be improved; be provided with signal joint 4 and ground wire joint 5 on the sensor housing, the bottom of sensor housing is provided with and is used for with waiting to detect circuit fixed connection's connecting piece 6, ground wire joint 5 links to each other with connecting piece 6 with electric connection mode, the inside of sensor housing is provided with carrier signal processing circuit, connector lug 1, high-voltage capacitor 23 and carrier signal processing circuit's input is connected with electric connection mode in proper order, carrier signal processing circuit's earthing terminal links to each other with ground wire joint 5, and ground wire joint 5 is used for the earth connection, carrier signal processing circuit's output carries out carrier signal transmission through the coupling mode with signal joint 4. The implementation is mainly used for detecting an indoor line to be detected, such as an electric box, and during detection, the connector lug 1 is used for connecting a cable of the line to be detected, and the device can be directly fixed on the indoor electric box through the connecting piece 6, so that a carrier signal on the line to be detected is input into a carrier signal processing circuit and is transmitted to detection equipment through the signal connector 4.
Preferably, referring to fig. 3, the carrier signal processing circuit includes a PLC signal processor 33, an inductor L34, and a discharge tube 35, where the connector lug 1, the high-voltage capacitor 23, and the PLC signal processor 33 are sequentially connected in an electrical connection manner, the inductor L34 is connected in parallel to two ends of the PLC signal processor 33, one end of the inductor L34 connected to the high-voltage capacitor 23 is connected to the ground connector 5, the PLC signal processor 33 and the signal connector 4 perform signal transmission in a coupling manner, one end of the discharge tube 35 is connected between the high-voltage and the PLC signal processor 33, and the other end is connected to the ground connector 5. The carrier signal of the line to be detected, which is connected by the connector lug 1, is input into the carrier signal processing circuit, i.e. the carrier signal of the line to be detected is coupled through the PLC signal processor 33 and the inductor, and finally output to the relevant detection device through the signal connector 4. The connector lug 1 is directly contacted with a line to be detected, signals can be directly transmitted to the carrier signal processing circuit, the signal connector 4 adopts a TNC connector, the transmission distance of carrier signals can be further realized, the transmission speed is faster, and the communication performance of the sensor is effectively improved; the high-voltage capacitor 23 is used for filtering the original signal, and the discharge tube 35 is instantaneously disconnected after lightning strike, so that the sensor is protected from lightning strike.
Preferably, referring to fig. 1 and 2, the connecting member 6 includes a first connecting nut 61 and a first screw 62, corresponding connecting holes are provided on a device to be tested, such as a cross bar of an electric box, and the sensor can be fixed on the cross bar of the electric box by passing the first screw 62 through the connecting holes and fixedly connecting the first screw 62 and the first connecting nut 61 through rotation, so that the sensor can be conveniently installed and removed.
Preferably, the sensor housing includes a housing 31 and a cover plate 32, a circuit board 36 is disposed in the housing 31, the PLC signal processor 33, the inductor L34 and the discharge tube 35 are all fixed on the circuit board 36, and corresponding leads are disposed on the circuit board 36 to connect the PLC signal processor 33, the inductor, the discharge tube 35 and other electrical components according to the setting requirements. One end of the signal connector 4 is fixed on the circuit board 36, the other end extends out of the housing 31, one end of the ground connector 5 is also fixed on the circuit board 36, and the other end penetrates the cover plate 32 and extends out of the cover plate 32. The signal connector 4 and the ground connector 5 extend out of the sensor housing, which facilitates connection to the ground wire and to the signal transmission line.
Preferably, in order to realize the fixed connection between the sensor housing and the lightning protection colloid, the cover plate 32 is further provided with a second connection nut 37, the second connection nut 37 may be used to connect the input end of the carrier signal processing circuit and the high-voltage capacitor 23, the second connection nut 37 is penetratingly disposed on the cover plate 32, one end of the second connection nut 37 is fixed on the circuit board 36, and the other end extends out of the cover plate 32 to be connected with the high-voltage capacitor 23.
Meanwhile, in order to realize the butt joint with the second connecting nut 37, a first connecting head 24, a second connecting head 25 and a second screw rod 26 are further arranged in the rubber tube 21, the first connecting head 24 is used for connecting one end of the connector lug 1 and one end of the high-voltage capacitor 23, the second connecting head 25 is used for connecting the other end of the high-voltage capacitor 23 and one end of the second screw rod 26, the other end of the second screw rod 26 is in threaded connection with the other end of the second connecting nut 37, and through the threaded connection mode of the second screw rod 26 and the second connecting nut 37, the high-voltage capacitor 23 can be electrically connected with a carrier signal processing circuit, and meanwhile, the fixed connection of the sensor shell and the lightning protection colloid is realized.
Preferably, in this embodiment, in order to ensure efficient transmission of the carrier signal, the connector lug 1, the ground connector 5, the signal connector 4, the connecting piece 6, the first connector 24, the second connector 25, the second screw 26, and the like are all made of conductive materials related to circuit transmission.
The present invention is not limited to the above embodiments, but is intended to be within the scope of the present invention as long as the technical effects of the present invention can be achieved by any same or similar means.
Claims (7)
1. A power carrier signal sensor, characterized in that: including connector lug (1), lightning protection colloid and the sensor casing that connects gradually, the lightning protection colloid includes rubber tube (21) and fixes a plurality of canopy (22) in the rubber tube (21) outside, rubber tube (21) adopt hollow structure and are provided with a plurality of through-hole on rubber tube (21), be provided with high-voltage capacitor (23) in rubber tube (21), be provided with signal connection (4) and ground wire joint (5) on the sensor casing, the bottom of sensor casing is provided with be used for with wait to detect circuit fixed connection's connecting piece (6), ground wire joint (5) link to each other with connecting piece (6) with electric connection mode, the inside of sensor casing is provided with carrier signal processing circuit, carrier signal processing circuit includes PLC signal processor (33), inductance L (34) and discharge tube (35), connector lug (1), high-voltage capacitor (23) and PLC signal processor (33) are connected with electric connection mode, inductance L (34) are parallelly connected at PLC signal processor (33) both ends, high-voltage capacitor L (23) and signal processor (33) are connected with each other with PLC signal connection (33) in proper order through electric connection mode, signal processing circuit (33) and high voltage connection (35) are connected with each other, the other end is connected with a ground wire connector (5).
2. The power carrier signal sensor of claim 1, wherein: the connecting piece (6) comprises a first connecting nut (61) and a first screw (62).
3. The power carrier signal sensor of claim 1, wherein: the signal connector (4) adopts a TNC connector.
4. The power carrier signal sensor of claim 1, wherein: the sensor shell comprises a shell (31) and a cover plate (32), a circuit board (36) is arranged in the shell (31), and the PLC signal processor (33), the inductor L (34) and the discharge tube (35) are all fixed on the circuit board (36).
5. The power carrier signal sensor of claim 4, wherein: one end of the signal connector (4) is fixed on the circuit board (36), the other end extends out of the shell (31), one end of the ground wire connector (5) is also fixed on the circuit board (36), and the other end penetrates through the cover plate (32) and extends out of the cover plate (32).
6. The power carrier signal sensor of claim 4, wherein: the circuit board is characterized in that a second connecting nut (37) is further arranged on the cover plate (32), the second connecting nut (37) is used for connecting the input end of the carrier signal processing circuit and the high-voltage capacitor (23), the second connecting nut (37) is arranged on the cover plate (32) in a penetrating mode, one end of the second connecting nut (37) is fixed on the circuit board (36), and the other end of the second connecting nut extends out of the cover plate (32) to be connected with the high-voltage capacitor (23).
7. The power carrier signal sensor of claim 6, wherein: still be provided with first connector (24), second connector (25) and second screw rod (26) in rubber tube (21), first connector (24) are used for connecting the one end of connector lug (1) and high voltage capacitor (23), second connector (25) are used for connecting the other end of high voltage capacitor (23) and the one end of second screw rod (26), the other end and the other end threaded connection of second coupling nut (37) of second screw rod (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259514.3A CN109309514B (en) | 2018-10-26 | 2018-10-26 | Power line carrier signal sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259514.3A CN109309514B (en) | 2018-10-26 | 2018-10-26 | Power line carrier signal sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109309514A CN109309514A (en) | 2019-02-05 |
| CN109309514B true CN109309514B (en) | 2023-11-14 |
Family
ID=65222150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259514.3A Active CN109309514B (en) | 2018-10-26 | 2018-10-26 | Power line carrier signal sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109309514B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6586949B1 (en) * | 1999-12-03 | 2003-07-01 | John S. Sargent | Volume charge density measuring system |
| CN104677532A (en) * | 2015-01-29 | 2015-06-03 | 镇江米青机电有限公司 | Carbon lead detection device of gas discharge tube line drawing machine |
| WO2016125028A2 (en) * | 2015-02-03 | 2016-08-11 | Abb Technology Ltd. | System for monitoring electrical power transmission line |
| CN107040286A (en) * | 2017-05-22 | 2017-08-11 | 珠海市晶宸科技有限公司 | A kind of enhanced power carrier signal sensor |
| CN206640830U (en) * | 2017-02-17 | 2017-11-14 | 翰力斯有限公司 | A kind of control system of indoor power line transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090085726A1 (en) * | 2007-09-27 | 2009-04-02 | Radtke William O | Power Line Communications Coupling Device and Method |
| US9374855B2 (en) * | 2013-10-24 | 2016-06-21 | Osram Sylvania Inc. | Power line communication for lighting systems |
-
2018
- 2018-10-26 CN CN201811259514.3A patent/CN109309514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6586949B1 (en) * | 1999-12-03 | 2003-07-01 | John S. Sargent | Volume charge density measuring system |
| CN104677532A (en) * | 2015-01-29 | 2015-06-03 | 镇江米青机电有限公司 | Carbon lead detection device of gas discharge tube line drawing machine |
| WO2016125028A2 (en) * | 2015-02-03 | 2016-08-11 | Abb Technology Ltd. | System for monitoring electrical power transmission line |
| CN206640830U (en) * | 2017-02-17 | 2017-11-14 | 翰力斯有限公司 | A kind of control system of indoor power line transmission |
| CN107040286A (en) * | 2017-05-22 | 2017-08-11 | 珠海市晶宸科技有限公司 | A kind of enhanced power carrier signal sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109309514A (en) | 2019-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2000049942A3 (en) | Test plug and cable for a glucose monitor | |
| CN107831410B (en) | Capacitive sleeve end screen signal detection device | |
| CN201522541U (en) | Transformer substation electrical equipment on-line monitoring system | |
| CN203117299U (en) | Integrative sensor for monitoring dielectric loss of power transformer bushing | |
| CN106249054B (en) | Capacitance type voltage transformer and integrated detection sensor thereof | |
| CN107040286B (en) | Enhanced power carrier signal sensor | |
| CN109309514B (en) | Power line carrier signal sensor | |
| CN201311836Y (en) | Electronic voltage transformer | |
| CN108614196A (en) | A kind of high-voltage cable that can detect electric discharge automatically | |
| CN2525649Y (en) | Coaxial cable | |
| CN2550770Y (en) | Portable zero value insulator ground detector | |
| CN202178471U (en) | Cable connector for built-in coupler and coupler thereof | |
| CN204177918U (en) | A kind of underground cable shelf depreciation double-core on-Line Monitor Device | |
| CN209072484U (en) | A kind of power carrier signal sensor | |
| CN209148829U (en) | A kind of lightning impulse test wave chopping time-delay mechanism | |
| CN206728011U (en) | A kind of enhanced power carrier signal sensor | |
| CN217334963U (en) | Wall bushing with partial discharge sensor | |
| CN210243770U (en) | Wearable cable partial discharge intelligent sensor | |
| CN206178089U (en) | Separable capacitive sensor device | |
| CN107807311B (en) | High-frequency partial discharge signal detection device for capacitive sleeve | |
| CN207133413U (en) | A kind of magnetic resonance conductive plate | |
| CN110501562A (en) | Transformer core grounding band shows sensor on the spot | |
| CN112731075A (en) | Intelligent sleeve with integrated structure built in sensor | |
| CN206440795U (en) | Extra-high video sensor is used at GIS Current Transformer Secondary Lead support plates | |
| RU167953U1 (en) | Suspension traction measuring device on a phase wire of an overhead power line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |