CN203786185U - Current indicator - Google Patents
Current indicator Download PDFInfo
- Publication number
- CN203786185U CN203786185U CN201420178947.7U CN201420178947U CN203786185U CN 203786185 U CN203786185 U CN 203786185U CN 201420178947 U CN201420178947 U CN 201420178947U CN 203786185 U CN203786185 U CN 203786185U
- Authority
- CN
- China
- Prior art keywords
- circuit
- current indicator
- input end
- board
- signal
- 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 - Lifetime
Links
- 230000001939 inductive effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 11
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000013024 troubleshooting Methods 0.000 abstract description 3
- 208000025274 Lightning injury Diseases 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 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 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a current indicator which is connected into the grounding wire of an electromechanical device through a jump ring. When the electromechanical device is subjected to grounding failures, caused by the leakage insulation failure, the lightning stroke, etc., a current flows through the grounding wire, the current is sensed by a current sensing coil, and an electrical signal is generated and outputted; a control signal is generated and outputted by a circuit board according to the electrical signal; a corresponding magnetic field is generated by a flip coil according to the control signal to control the indicator to perform the flip operation so as to accurately indicate whether the electromechanical device connected with the current indicator is subjected to the lightning stroke or the insulation failure; and an inspection repair person can accurately judge the specific failure occurrence point according to the flip condition, so the troubleshooting speed can be quickened.
Description
Technical field
The utility model relates to electric detection technique field, relates in particular to a kind of current indicator.
Background technology
In prior art, for the fault detect of various electromechanical equipments and high voltage power transmission and transforming network, conventionally adopt the fault detector of the branch line place or the block switch both sides that are installed on pole line; When line short, line tripping has a power failure, and line current changes, and described fault detector detects the variation of electric current, and board turning occurs, ground staff by analysis board turning situation can certain separated time or certain section circuit of failure judgement point in circuit in.
But the zonule that this fault detect mode of prior art can only failure judgement point, and the accurate concrete origination point of failure judgement; Meanwhile, due to the circuit power failure of can not tripping when there is singlephase earth fault, this situation of existing described fault detector None-identified belongs to malfunction or simple line current overload, so can board turning; For example, once the fault (lightning arrester insulation punctures) that runs into the electric leakage failure of insulation of electromechanical equipment on circuit or caused by thunderbolt, described fault detector can board turning, can only lean on maintainer's scene intuitively to determine, therefore can not find fast faulty equipment.
Utility model content
In view of this, the utility model provides a kind of current indicator, to solve in prior art the accurately concrete origination point of failure judgement, and the problem of electromechanical equipment electric leakage failure of insulation or the caused fault of being struck by lightning on cannot detection line.
To achieve these goals, the existing scheme proposing is as follows:
A current indicator, is connected in the ground wire of electromechanical equipment, and described current indicator comprises:
Shell;
The jump ring that described current indicator is connected with the ground wire of described electromechanical equipment; Described jump ring is connected with described shell;
Respond to the electric current in the ground wire of described electric equipment, generate and the electric current inductive coil of output electrical signals; The input end of described electric current inductive coil is connected with the ground wire of described electromechanical equipment;
According to described electric signal, generate and export the circuit board of control signal; The input end of described circuit board is connected with the output terminal of described electric current inductive coil;
According to described control signal, generate the board turning coil in corresponding magnetic field; The input end of described board turning coil is connected with the output terminal of described circuit board;
According to described magnetic field, carry out the direction board of board turning action.
Preferably, described circuit board comprises:
According to described electric signal, generate and export the detection sensor circuit of induced signal; The input end of described detection sensor circuit is connected with the output terminal of described electric current inductive coil;
Described induced signal is carried out to the phase inverter of wave shaping; The first input end of described phase inverter is connected with the output terminal of described detection sensor circuit;
According to the induced signal after described wave shaping, generate the also digital processing unit of output drive signal; The first input end of described digital processing unit is connected with the output terminal of described phase inverter;
According to described driving signal, generate and export the control circuit of described control signal; The input end of described control circuit is connected with the output terminal of described digital processing unit;
Out-put supply signal makes the power circuit of the output of described control circuit retentive control signal; The output terminal of described power circuit is connected with the second input end of described phase inverter.
Preferably, described circuit board also comprises: make described control circuit export the manual reset terminal of another control signal; One end of described manual reset terminal is connected with the second input end of described digital processing unit.
Preferably, described circuit board also comprises: make described control circuit export the timing circuit of another control signal; The output terminal of described timing circuit is connected with the 3rd input end of described digital processing unit.
Preferably, the time interval that described timing circuit is exported between another control signal and described control circuit output control signal described control circuit is 12 hours.
Preferably, described circuit board also comprises: be connected in the dormant circuit between the other end of described manual reset terminal and the four-input terminal of described digital processing unit.
Preferably, described power circuit comprises lithium battery.
Preferably, described direction board comprises red card and person who is not a member of any political party.
Preferably, described shell comprises: Polyvinylchloride and epoxy resin.
Preferably, the semiconductor devices in described circuit board is microampere order device.
From above-mentioned technical scheme, can find out, the disclosed current indicator of the utility model, by jump ring, be connected in the ground wire of electromechanical equipment, when electric leakage failure of insulation occurs for described electromechanical equipment or the earth fault such as be struck by lightning, have electric current by described ground wire, electric current inductive coil senses described electric current, generates and output electrical signals; By circuit board, according to described electric signal, generate and export control signal; By board turning coil, according to described control signal, generate corresponding magnetic field again, control direction board and carry out board turning action, accurately to indicate the described electromechanical equipment being connected with described current indicator whether to meet with thunderbolt or failure of insulation; And make an inspection tour repair personnel and can, according to the concrete origination point of the accurate failure judgement of board turning, accelerate troubleshooting speed.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the disclosed current indicator structural representation of the utility model embodiment;
Fig. 2 is the schematic diagram of circuit board in the disclosed current indicator of another embodiment of the utility model;
Fig. 3 is the schematic diagram of circuit board in the disclosed current indicator of another embodiment of the utility model;
Fig. 4 is the schematic diagram of circuit board in the disclosed current indicator of another embodiment of the utility model;
Fig. 5 is the schematic diagram of circuit board in the disclosed current indicator of another embodiment of the utility model;
Fig. 6 is the schematic diagram of circuit board in the disclosed current indicator of another embodiment of the utility model;
Fig. 7 is the circuit diagram of circuit board in the disclosed current indicator of another embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of current indicator, to solve in prior art the accurately concrete origination point of failure judgement, and the problem of electromechanical equipment electric leakage failure of insulation or the caused fault of being struck by lightning on cannot detection line.
Concrete, as shown in Figure 1, described current indicator, is connected in the ground wire of electromechanical equipment, and described current indicator comprises:
Shell 101;
The jump ring 102 being connected with shell 101;
The electric current inductive coil 103 that input end is connected with the ground wire of electromechanical equipment;
The circuit board 104 that input end is connected with the output terminal of electric current inductive coil 103;
The board turning coil 105 that input end is connected with the output terminal of circuit board 104;
And direction board 106.
Concrete principle of work is:
Jump ring 102 makes described current indicator be connected with the ground wire of described electromechanical equipment; When electric leakage failure of insulation occurs for described electromechanical equipment or the earth fault such as be struck by lightning, have electric current by described ground wire, the electric current in the ground wire of the described electric equipment of electric current inductive coil 103 induction, generates and output electrical signals; Circuit board 104 generates and exports control signal according to described electric signal; Board turning coil 105 generates corresponding magnetic field according to described control signal; Direction board 106 carries out board turning action according to described magnetic field.
The disclosed described current indicator of the present embodiment, when making described electromechanical equipment that electric leakage failure of insulation occur or the earth fault such as being struck by lightning according to said process, can whether meet with thunderbolt or failure of insulation by the board turning action described electromechanical equipment that accurately indication is connected with described current indicator of direction board 106, passerby is in case close in warning; And making an inspection tour repair personnel can, according to the concrete origination point of the accurate failure judgement of board turning, carry out electrical verification to described ground wire and guarantee, without carrying out follow-up work after electricity, to have protected personnel's life security to accelerate troubleshooting speed simultaneously again.
Preferably, as shown in Figure 2, circuit board 104 comprises:
The detection sensor circuit 201 that input end is connected with the output terminal of electric current inductive coil 103;
The phase inverter 202 that first input end is connected with the output terminal that detects sensor circuit 201;
The digital processing unit 203 that first input end is connected with the output terminal of phase inverter 202;
The control circuit 204 that input end is connected with the output terminal of digital processing unit 203;
The power circuit 205 that output terminal is connected with the second input end of phase inverter 202.
Concrete principle of work is:
Detect sensor circuit 201 and generate and export induced signal according to described electric signal; 202 pairs of described induced signals of phase inverter carry out wave shaping; Digital processing unit 203 generates and output drive signal according to the induced signal after described wave shaping; Control circuit 204 generates and exports described control signal according to described driving signal; Then the board turning coil 105 in Fig. 1 generates corresponding magnetic field according to described control signal, and direction board 106 carries out board turning action according to described magnetic field; Power circuit 205 out-put supply signals make the output of control circuit 204 retentive control signals, and then make direction board 106 keep board turning state.
Preferably, as shown in Figure 3, circuit board 104 also comprises: the manual reset terminal 206 that one end is connected with the second input end of digital processing unit 203.
When the fault handling of described electromechanical equipment completes, and the direction board 106 shown in Fig. 1 is still when board turning state, by operating personnel, press manual reset terminal 206, make digital processing unit 203 generate and export another and drive signal, and then make control circuit 204 export another control signals, board turning coil 105 in control chart 1 generates according to described another control signal and magnetic field contrary in above-described embodiment, and then direction board 106 is according to the described contrary magnetic field board turning that resets.
Preferably, as shown in Figure 4, circuit board 104 also comprises: the timing circuit 207 that output terminal is connected with the 3rd input end of digital processing unit 203.
When the fault handling of described electromechanical equipment completes, and the direction board 106 shown in Fig. 1 is still when board turning state, timing circuit 207 makes digital processing unit 203 generate and export another and drives signal, and then make control circuit 204 export another control signals, board turning coil 105 in control chart 1 generates according to described another control signal and magnetic field contrary in above-described embodiment, and then direction board 106 is according to the described contrary magnetic field board turning that resets.
Preferably, the time interval that timing circuit 207 is exported between control signals control circuit 204 another control signals of output and control circuit 204 is 12 hours.
Because general line fault is searched equal can finding in 12 hours, thus can be preferably 12 hours, can suitably heighten reset time according to the complexity of circuit in addition; In concrete actual conditions, this time interval can value random time between 0 to 24 hour,, can choose according to actual conditions so herein and be not specifically limited.
What deserves to be explained is, timing circuit 207 is identical with the effect of manual reset terminal 206, all to complete for the fault handling when described electromechanical equipment, and the direction board 106 shown in Fig. 1 is still when board turning state, make direction board 106 board turning that resets, in actual application environment, can select according to specific circumstances, or both exist simultaneously as shown in Figure 5, to guarantee the timely reset of direction board 106.
Preferably, as shown in Figure 6, circuit board 104 also comprises: be connected in the dormant circuit 208 between the other end of manual reset terminal 206 and the four-input terminal of digital processing unit 203.
Preferably, in power circuit 205, adopt the lithium battery of large-capacity and high-performance.
Preferably, the semiconductor devices of circuit board 104 inside is microampere order device.
In actual application environment, the semiconductor devices of circuit board 104 inside is microampere order device, in power circuit 205, adopt the lithium battery of large-capacity and high-performance, and in not sensing the most of the time of electric current, need dormant circuit 208 to reduce circuit power consumption, all can make described current indicator longer service time.
In concrete practical application, Figure 7 shows that a kind of specific implementation form of circuit board 104, also can select according to actual conditions, do not limit herein.
Preferably, direction board 106 comprises red card and person who is not a member of any political party.
In concrete use, direction board 106 represents that the electromechanical equipment being connected with described current indicator is struck by lightning during for person who is not a member of any political party, and after described electromechanical equipment is struck by lightning, direction board 106 upsets, for red card, represent that described electromechanical equipment is struck by lightning.In the period that there is no thunder and lightning weather, direction board 106 represents that described electromechanical equipment does not leak electricity during for person who is not a member of any political party, represents that described electromechanical equipment is electric leakage state while overturning as red card.
It should be noted that, the indication implication of the color of direction board 106 and each color might not be defined as above-mentioned situation, can carry out different selecting according to concrete actual conditions.
Preferably, shell 101 comprises: Polyvinylchloride and epoxy resin.
Shell 101 adopts senior white Polyvinylchloride, can guarantee that described current indicator keeps stability under various rugged surroundings; Adopt again macromolecule epoxy resin hermetically sealed, make the long-term normal work of internal circuit of described current indicator.
Remaining feature and concrete principle of work are same as the previously described embodiments in the present embodiment, repeat no more herein.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a current indicator, is characterized in that, is connected in the ground wire of electromechanical equipment, and described current indicator comprises:
Shell;
The jump ring that described current indicator is connected with the ground wire of described electromechanical equipment; Described jump ring is connected with described shell;
Respond to the electric current in the ground wire of described electric equipment, generate and the electric current inductive coil of output electrical signals; The input end of described electric current inductive coil is connected with the ground wire of described electromechanical equipment;
According to described electric signal, generate and export the circuit board of control signal; The input end of described circuit board is connected with the output terminal of described electric current inductive coil;
According to described control signal, generate the board turning coil in corresponding magnetic field; The input end of described board turning coil is connected with the output terminal of described circuit board;
According to described magnetic field, carry out the direction board of board turning action.
2. current indicator according to claim 1, is characterized in that, described circuit board comprises:
According to described electric signal, generate and export the detection sensor circuit of induced signal; The input end of described detection sensor circuit is connected with the output terminal of described electric current inductive coil;
Described induced signal is carried out to the phase inverter of wave shaping; The first input end of described phase inverter is connected with the output terminal of described detection sensor circuit;
According to the induced signal after described wave shaping, generate the also digital processing unit of output drive signal; The first input end of described digital processing unit is connected with the output terminal of described phase inverter;
According to described driving signal, generate and export the control circuit of described control signal; The input end of described control circuit is connected with the output terminal of described digital processing unit;
Out-put supply signal makes the power circuit of the output of described control circuit retentive control signal; The output terminal of described power circuit is connected with the second input end of described phase inverter.
3. current indicator according to claim 2, is characterized in that, described circuit board also comprises: make described control circuit export the manual reset terminal of another control signal; One end of described manual reset terminal is connected with the second input end of described digital processing unit.
4. current indicator according to claim 2, is characterized in that, described circuit board also comprises: make described control circuit export the timing circuit of another control signal; The output terminal of described timing circuit is connected with the 3rd input end of described digital processing unit.
5. current indicator according to claim 4, is characterized in that, the time interval that described timing circuit is exported between another control signal and described control circuit output control signal described control circuit is 12 hours.
6. current indicator according to claim 3, is characterized in that, described circuit board also comprises: be connected in the dormant circuit between the other end of described manual reset terminal and the four-input terminal of described digital processing unit.
7. current indicator according to claim 2, is characterized in that, described power circuit comprises lithium battery.
8. current indicator according to claim 1, is characterized in that, described direction board comprises red card and person who is not a member of any political party.
9. current indicator according to claim 1, is characterized in that, described shell comprises: Polyvinylchloride and epoxy resin.
10. current indicator according to claim 1, is characterized in that, the semiconductor devices in described circuit board is microampere order device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178947.7U CN203786185U (en) | 2014-04-14 | 2014-04-14 | Current indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420178947.7U CN203786185U (en) | 2014-04-14 | 2014-04-14 | Current indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786185U true CN203786185U (en) | 2014-08-20 |
Family
ID=51322359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420178947.7U Expired - Lifetime CN203786185U (en) | 2014-04-14 | 2014-04-14 | Current indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203786185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175562A (en) * | 2019-12-31 | 2020-05-19 | 常州瑞莱博自动化科技有限公司 | Bistable liquid crystal current indicator |
-
2014
- 2014-04-14 CN CN201420178947.7U patent/CN203786185U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175562A (en) * | 2019-12-31 | 2020-05-19 | 常州瑞莱博自动化科技有限公司 | Bistable liquid crystal current indicator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101738565A (en) | Adaptive fault indicator | |
| CN102288850B (en) | Zinc oxide arrester monitoring device | |
| CN106655145B (en) | A kind of battery power feeds electric voltage reverse-connection protection circuit | |
| CN103516052A (en) | Power distribution equipment on-line monitoring early-warning terminal | |
| CN204241594U (en) | A kind of real-time monitoring system for substation transformer operating condition | |
| CN103795029A (en) | Leakage current detection protection circuit of direct-current remote supply power system | |
| CN104749484A (en) | Electric-leakage monitoring device | |
| CN105425104A (en) | Power transmission line fault indicator | |
| CN103257272A (en) | Power failure detection circuit and detection method for alternating current (AC) power supply | |
| CN203786185U (en) | Current indicator | |
| CN206114821U (en) | Verifying attachment of voltage transformer opening triangle protection | |
| CN203849356U (en) | Voltage transformer secondary wire connection inspection device | |
| CN206378569U (en) | A kind of voltage relay abnormal detector | |
| CN202586732U (en) | Open-phase protection circuit of frequency converter | |
| CN109066551A (en) | A kind of power transmission circuit caused by windage warning device | |
| CN103616586A (en) | Low-voltage insulation and temperature detection device | |
| CN204166079U (en) | Secondary loop of breaker wiring testing device | |
| CN203562840U (en) | Power distribution equipment on-line monitoring early-warning terminal | |
| CN206575157U (en) | A kind of battery power feeds electric voltage reverse-connection protection circuit | |
| CN206992687U (en) | A kind of electrical management device based on power line communication technology | |
| CN205120844U (en) | Electric power protective device's operate time detection device and system | |
| CN205178472U (en) | Earth -free power supply system of neutral point with ground connection protect function | |
| CN207133366U (en) | Intelligent terminal response time test system | |
| CN204515063U (en) | Leakage monitoring device | |
| CN205120893U (en) | Power transmission line fault indictor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |