CN217404384U - Lightning current monitoring device - Google Patents
Lightning current monitoring device Download PDFInfo
- Publication number
- CN217404384U CN217404384U CN202220884554.2U CN202220884554U CN217404384U CN 217404384 U CN217404384 U CN 217404384U CN 202220884554 U CN202220884554 U CN 202220884554U CN 217404384 U CN217404384 U CN 217404384U
- Authority
- CN
- China
- Prior art keywords
- lightning current
- current sensor
- rogowski coil
- terminal body
- coil current
- 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
- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The utility model discloses a lightning current monitoring devices, including the monitor terminal body, lightning current detection mechanism, control warning mechanism, one side of monitor terminal body is connected with the electric pole tower, it is originally internal that lightning current detection mechanism locates the monitor terminal, lightning current detection mechanism includes rogowski coil current sensor, one side of rogowski coil current sensor is equipped with peak circuit detection module, one side that rogowski coil current sensor was kept away from to peak circuit detection module is equipped with hysteresis circuit module, one side of rogowski coil current sensor is located to control warning mechanism, control warning mechanism includes the singlechip, the outside of monitor terminal body is connected with a pair of warning light. The utility model discloses an adopt high frequency current sensor to the monitoring of ground connection in-process lightning current, realize the accurate positioning of type to the thunderbolt point, simplified the staff and carried out the quick inquiry and the restoration process of thunderbolt fault point to distribution lines, improved the fail safe nature of distribution network equipment operation in-process.
Description
Technical Field
The utility model belongs to the technical field of distribution network equipment, concretely relates to lightning current monitoring devices.
Background
With the increasing of the urban scale, electric power becomes a main energy source of daily production and life of people, wherein power distribution network equipment is equipment for transmitting and distributing daily power consumption of people, the safe operation of the power distribution network equipment is directly related to the reliability of power supply of an urban power grid, and as a power transmission line of the power distribution network has the characteristic of low voltage withstanding level, breakdown grounding faults are easy to occur under the action of direct lightning strikes and inductive lightning strikes, and tripping power failure accidents are easy to occur.
The existing power distribution equipment cannot play a role in monitoring the lightning current due to the lack of a corresponding lightning current monitoring device, so that the worker can difficultly quickly inquire and repair lightning strike fault points of the power distribution line, and the safety and reliability of the power distribution network equipment in the operation process are reduced.
Therefore, in view of the above technical problems, it is necessary to provide a lightning current monitoring device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lightning current monitoring devices to solve foretell problem.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
lightning current monitoring device includes: the monitoring terminal comprises a monitoring terminal body, a lightning current detection mechanism and a control warning mechanism;
one side of the monitoring terminal body is connected with a pole tower;
the lightning current detection mechanism is arranged in the monitoring terminal body and comprises a Rogowski coil current sensor, a peak circuit detection module is arranged on one side of the Rogowski coil current sensor, and a hysteresis circuit module is arranged on one side, far away from the Rogowski coil current sensor, of the peak circuit detection module;
control warning mechanism locates one side of rogowski coil current sensor, control warning mechanism includes the singlechip, the outside of monitor terminal body is connected with a pair of warning light, and is a pair of the warning light all with singlechip electric connection.
Furthermore, one side that the monitor terminal body is close to the electric pole tower is connected with the lead frame, plays the spacing effect of support to connecting wire through the lead frame, has improved connecting wire and rogowski coil current sensor's stability of being connected, be equipped with connecting wire in the lead frame, accessible connecting wire connects rogowski coil current sensor and connects with signal transmission.
Further, be connected with fixed connector between connecting wire and the pole tower, connecting wire is located this internal one end of monitor terminal and Rogowski coil current sensor electric connection, and fixed connector plays the effect of connecting pole tower and connecting wire, has improved the stability that connecting wire and pole tower are connected.
Furthermore, the peak circuit detection module is composed of a pair of amplifiers, the amplifiers play a role in current buffering and isolation for the peak circuit detection module, a pair of diodes are electrically connected between the pair of amplifiers, the capacitor can be charged through the one-way conductivity of the diodes, one side of each of the pair of diodes is electrically connected with the capacitor and the discharge resistor, and the delay length of the capacitor and the discharge resistor is improved by arranging the discharge resistors with different resistance values.
Furthermore, the hysteresis circuit module is composed of a plurality of discharge resistors, and the hysteresis circuit is composed of the plurality of discharge resistors, so that interference of noise and the like on the input signal is reduced.
Furthermore, one side of singlechip is equipped with communication module, communication module and singlechip electric connection, accessible communication module carries out information transmission to rogowski coil current sensor.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses an adopt high frequency current sensor to the monitoring of lightning current among the ground connection process, realize the accurate positioning of class to the thunderbolt point, simplified the staff and carried out quick inquiry and the repair process of thunderbolt fault point to the distribution lines, improved the fail safe nature among the distribution network equipment operation process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a lightning current monitoring device according to an embodiment of the present invention;
fig. 2 is a schematic view of a part of a lightning current monitoring device according to an embodiment of the present invention;
fig. 3 is an operation schematic diagram of a lightning current monitoring device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a peak detection circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a hysteresis circuit according to an embodiment of the present invention.
In the figure: 1. the monitoring terminal comprises a monitoring terminal body, 101, an electric pole tower, 102, a lead frame, 103, a connecting lead, 104, a fixed connecting piece, 2, a lightning current detection mechanism, 201, a Rogowski coil current sensor, 202, a peak circuit detection module, 203, a hysteresis circuit module, 3, a control warning mechanism, 301, a single chip microcomputer, 302, a warning lamp and 303 and a communication module.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.
The utility model discloses a lightning current monitoring devices, it is shown with reference to fig. 1-5, including monitor terminal body 1, lightning current detection mechanism 2, control warning mechanism 3.
Referring to fig. 1, one side of the monitoring terminal body 1 is connected with a pole tower 101, and the pole tower 101 is used for supporting and limiting the distribution lines of the distribution network equipment.
Referring to fig. 2, a lead frame 102 is connected to a side of the monitoring terminal body 1 close to the electric pole tower 101, and the lead frame 102 supports and limits the connection lead 103, so that the connection stability between the connection lead 103 and the rogowski coil current sensor 201 is improved.
Referring to fig. 1, a connecting lead 103 is disposed in the lead frame 102, and the rogowski coil current sensor 201 can be connected and signal-transmitted through the connecting lead 103.
Referring to fig. 1, a fixed connecting piece 104 is connected between the connecting wire 103 and the pole tower 101, one end of the connecting wire 103 located in the monitoring terminal body 1 is electrically connected to the rogowski coil current sensor 201, and the fixed connecting piece 104 plays a role in connecting the pole tower 101 and the connecting wire 103, so that the stability of connecting the connecting wire 103 and the pole tower 101 is improved.
Referring to fig. 2, the lightning current detection mechanism 2 is disposed in the monitoring terminal body 1, and the lightning current detection mechanism 2 can detect whether the monitoring terminal body 1 is subjected to passing of the lightning current.
Referring to fig. 2, the lightning current detection mechanism 2 includes a rogowski coil current sensor 201, and the lightning current passing through the monitoring terminal body 1 can be inductively coupled by the rogowski coil current sensor 201.
Referring to fig. 2, a peak circuit detection module 202 is disposed on one side of the rogowski coil current sensor 201, a hysteresis circuit module 203 is disposed on one side of the peak circuit detection module 202 away from the rogowski coil current sensor 201, and a current signal transmitted by the connecting wire 103 is processed by the mutual cooperation of the peak circuit detection module 202 and the hysteresis circuit module 203, so as to realize monitoring of a lightning current.
Referring to fig. 4, the peak circuit detecting module 202 is composed of a pair of amplifiers, the amplifiers buffer and isolate the peak circuit detecting module 202, a pair of diodes are electrically connected between the pair of amplifiers, the capacitor can be charged through the unidirectional conductivity of the diodes, one side of each of the pair of diodes is electrically connected with the capacitor and the discharging resistor, and the delay length of the capacitor and the discharging resistor is increased by setting the discharging resistors with different resistance values.
Specifically, during the operation of the whole peak detection circuit, the U1 and the U2 amplifiers are used as buffer isolation, the capacitor C1 is charged by utilizing the unidirectional conductivity of the diodes D1 and D2, and the R2 is used as a discharge resistor, the resistance value of the discharge resistor is selected to be large in the selection process, and the delay length of the C1R2 is ensured.
Referring to fig. 5, the hysteresis circuit module 203 is composed of a plurality of discharge resistors, and the plurality of discharge resistors form a hysteresis circuit, so that interference caused by noise and the like to the input signal is reduced.
Specifically, the upper and lower threshold calculation formulas of the hysteresis circuit module 203 are as follows:
in the formula: UR is reference voltage, UoL is a lower limit threshold, UoH is an upper limit threshold, and in consideration of avoiding false operation of an external interference signal on a system, the difference value between the UR and the upper limit threshold is 5V, the lower limit threshold is 2V, the upper limit threshold is 7V, and the voltage of a power supply is 12V.
Referring to fig. 2, the control warning mechanism 3 is disposed on one side of the rogowski coil current sensor 201, and the control warning mechanism 3 plays a role in warning control and information transmission on the operation state of the monitoring terminal body 1.
Referring to fig. 2, the control warning mechanism 3 includes a single chip microcomputer 301, and the operating states of the rogowski coil current sensor 201, the peak circuit detection module 202, the hysteresis circuit module 203, and the rogowski coil current sensor 201 can be controlled by the single chip microcomputer 301.
Referring to fig. 1, the outside of monitoring terminal body 1 is connected with a pair of warning light 302, and a pair of warning light 302 all is connected with singlechip 301 electric connection, is convenient for show the monitoring state of monitoring terminal body 1 through the operation of warning light 302.
Referring to fig. 2, a communication module 303 is disposed on one side of the single chip microcomputer 301, and the communication module 303 is electrically connected to the single chip microcomputer 301, so that the communication module 303 can transmit information to the rogowski coil current sensor 201.
During the specific use, when lightning stroke trouble appears in the electric pole tower 101 in the use, lightning current is carried to the rogowski coil current sensor 201 in under the effect of fixed connector 104 and connecting wire 103, monitor lightning current through rogowski coil current sensor 201, and simultaneously, handle lightning current signal through mutually supporting of peak circuit detection module 202 and hysteresis circuit module 203, the signal transmission after handling is to in the singlechip 301, the operation through singlechip 301 control warning light 302 plays the effect of warning to maintainer, accessible singlechip 301 control communication module 303 sends the fault state information of electric pole tower 101 simultaneously.
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model discloses an adopt high frequency current sensor to the monitoring of lightning current among the ground connection process, realize the accurate positioning of class to the thunderbolt point, simplified the staff and carried out quick inquiry and the repair process of thunderbolt fault point to the distribution lines, improved the fail safe nature among the distribution network equipment operation process.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Lightning current monitoring devices, its characterized in that includes:
the monitoring terminal comprises a monitoring terminal body (1), wherein one side of the monitoring terminal body (1) is connected with an electric pole tower (101);
the lightning current detection mechanism (2) is arranged in the monitoring terminal body (1), the lightning current detection mechanism (2) comprises a Rogowski coil current sensor (201), one side of the Rogowski coil current sensor (201) is provided with a peak circuit detection module (202), and one side, far away from the Rogowski coil current sensor (201), of the peak circuit detection module (202) is provided with a hysteresis circuit module (203);
control warning mechanism (3), locate one side of rogowski coil current sensor (201), control warning mechanism (3) include singlechip (301), the outside of monitor terminal body (1) is connected with a pair of warning light (302), and is a pair of warning light (302) all with singlechip (301) electric connection.
2. The lightning current monitoring device according to claim 1, wherein a lead frame (102) is connected to a side of the monitoring terminal body (1) close to the power tower (101), and a connecting lead (103) is arranged in the lead frame (102).
3. The lightning current monitoring device according to claim 2, wherein a fixed connecting piece (104) is connected between the connecting wire (103) and the tower (101), and one end of the connecting wire (103) located in the monitoring terminal body (1) is electrically connected with the rogowski coil current sensor (201).
4. The lightning current monitoring device according to claim 1, wherein the peak circuit detecting module (202) comprises a pair of amplifiers, a pair of diodes is electrically connected between the pair of amplifiers, and a capacitor and a discharge resistor are electrically connected to one side of each of the pair of diodes.
5. A lightning current monitoring device according to claim 1, characterised in that the hysteretic circuit module (203) is composed of a plurality of discharge resistors.
6. The lightning current monitoring device according to claim 1, wherein a communication module (303) is arranged on one side of the single chip microcomputer (301), and the communication module (303) is electrically connected with the single chip microcomputer (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220884554.2U CN217404384U (en) | 2022-04-18 | 2022-04-18 | Lightning current monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220884554.2U CN217404384U (en) | 2022-04-18 | 2022-04-18 | Lightning current monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217404384U true CN217404384U (en) | 2022-09-09 |
Family
ID=83139652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220884554.2U Expired - Fee Related CN217404384U (en) | 2022-04-18 | 2022-04-18 | Lightning current monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217404384U (en) |
-
2022
- 2022-04-18 CN CN202220884554.2U patent/CN217404384U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103887888B (en) | A kind of fuse on-line monitoring system | |
| CN108199477B (en) | Remote intelligent monitoring method and equipment for faults of AC/DC system of transformer substation | |
| CN217404384U (en) | Lightning current monitoring device | |
| CN210038027U (en) | Comprehensive fault line selection device for power distribution system | |
| CN208444970U (en) | Electricity testing ground wire with GPS function is hung and earth connection measurement plant | |
| CN205610344U (en) | Smart power grids's wireless monitoring system | |
| CN203502541U (en) | High-voltage fault detection and indication apparatus | |
| CN202119862U (en) | Electric power circuit fault information display and remote transmission device | |
| CN206378569U (en) | A kind of voltage relay abnormal detector | |
| CN213424813U (en) | Wiring-free remote transmission high-voltage current transformer | |
| CN213813799U (en) | Intelligent monitoring device for distribution network equipment cable clamp | |
| CN207866390U (en) | Radio remote is apart from outdoor high-voltage wire clamp temperature measuring equipment | |
| CN209930199U (en) | DC combiner box | |
| CN209541918U (en) | A kind of contactless temperature-measuring sensor | |
| CN202957660U (en) | Passive wireless transmission system | |
| CN206321698U (en) | A kind of power supply row cabinet of auto-alarming | |
| CN202206130U (en) | Intelligent surge protector with data collection and data transmission functions | |
| CN206479599U (en) | A kind of on off test device of TN system earths line | |
| CN220795356U (en) | Automatic detection device for grounding resistance of distribution box | |
| CN202002968U (en) | Electronic lightning stroke times collecting system of lightning arrester | |
| CN111313827A (en) | Direct current collection flow box | |
| CN205319796U (en) | Power system fault detection system | |
| CN216290191U (en) | Data acquisition device of piezoresistor | |
| CN219916208U (en) | Operation monitoring and remote control device for electromechanical equipment of expressway portal | |
| CN103499762A (en) | Online detection device for leakage current of lightning arrester of power distribution network |
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: 20220909 |