CN201812026U - Electric cable recognizer for detecting electric cable operation and stoppage - Google Patents
Electric cable recognizer for detecting electric cable operation and stoppage Download PDFInfo
- Publication number
- CN201812026U CN201812026U CN2010205499988U CN201020549998U CN201812026U CN 201812026 U CN201812026 U CN 201812026U CN 2010205499988 U CN2010205499988 U CN 2010205499988U CN 201020549998 U CN201020549998 U CN 201020549998U CN 201812026 U CN201812026 U CN 201812026U
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- circuit
- cable
- electric cable
- operational amplifier
- recognizer
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Abstract
The utility model relates to an electric cable recognizer for detecting electric cable operation and stoppage, which belongs to the technical field of electrical circuit detection equipments and instruments, and aims at solving the technical problem of providing an electric cable recognizer with simple structure, convenience in taking and a plurality of detection functions. The electric cable recognizer is characterized by comprising a magnetic field sensing probe, a rectification circuit, an operational amplifying circuit and a light emitting circuit; the magnetic field sensing probe, the rectification circuit, the operational amplifying circuit and the light emitting circuit are successively connected; the operational amplifying circuit adopts the connection of two operational amplifiers; and the shining circuit adopts the connection of an audion and a light emitting diode. The electric cable recognizer can help constructors exactly and rapidly affirm the use of a power cable, can solve the problems that the cable use can not be cleared by using the method of simple hand touching or eye patrolling, can confirm the fault point when detecting single-phase or multi-phase short circuit of the electric cable, and also can monitor whether the device is working or not. The utility model has the advantages of simple structure and convenience in taking, and is a carry-on good assistant of electricians.
Description
Technical field
The utility model relates to a kind of detection streamer running status and whether has the device of fault, belongs to electric wiring checkout equipment Instrument technology field.
Background technology
Cable is the important carrier of transmission current, and in real work, it is the very important content of engineering technical personnel and electrician that cable is discerned.At first, in service at electric wiring, the workmen need confirm the purposes of power cable accurately and quickly; Secondly, when one phase or multinomial short trouble take place cable, determine the trouble spot that cable breaks down; Also have, whether normally the staff wants the operation of moment monitoring equipment.At present, the apparatus structure of existing detection streamer is comparatively complicated, volume is bigger, being not easy to the electrician carries, when having influenced cable is detected in real time at the construction field (site) with field work, therefore these are operated in and many times also need the staff to adopt simple hand to touch or the eye method of patrolling is checked, make the accuracy of cable detection work and detection speed all be difficult to reach gratifying effect.
Summary of the invention
Technical problem to be solved in the utility model provides the cable identifier of a kind of simple in structure, the detection streamer that is easy to carry, has multinomial measuring ability operation and fault.
The technical scheme that solves the problems of the technologies described above is:
The cable identifier of a kind of detection streamer operation and fault, it is made up of magnetic field sensing probe, rectification circuit, discharge circuit, illuminating circuit, magnetic field sensing probe, rectification circuit, discharge circuit, illuminating circuit connect successively, discharge circuit adopts two operational amplifiers to be connected, and illuminating circuit adopts triode to be connected with light emitting diode.
The cable identifier of above-mentioned detection streamer operation and fault, described rectification circuit is formed half-wave rectifying circuit by diode D1, D2, resistance R 2, capacitor C 1, and the magnetic field sensing probe connects the input end of rectification circuit, the output termination discharge circuit of rectification circuit.
The cable identifier of above-mentioned detection streamer operation and fault, described discharge circuit is made up of operational amplifier IC1, IC2, resistance R 3-R7, potentiometer W1, capacitor C 2, diode D2, operational amplifier IC1 in-phase input end connects the output terminal of rectification circuit, operational amplifier IC1 reverse input end is connected on operational amplifier IC1 output terminal by potentiometer W1, the output terminal of operational amplifier IC1 connects the in-phase input end of operational amplifier IC2 by diode D2, the reverse input end of operational amplifier IC2 connects power supply, the output terminal sending and receiving optical circuit of operational amplifier IC2.
The cable identifier of above-mentioned detection streamer operation and fault, described illuminating circuit is made up of triode BG1 and LED 1, the base stage of triode BG1 connects the output terminal of discharge circuit, and LED 1 is connected on the collector of triode BG1, the grounded emitter of triode BG1.
The utility model can help the accurately quick purposes of confirming power cable of workmen, separates and must not touch or the eye method of patrolling is led a difficult problem of knowing cable applications with simple hand; Can check that one phase takes place cable, or localization of faults during heterogeneous short circuit; Can also whether move by monitoring equipment.The utility model is simple in structure, easy to carry, is the good assistant that the electrician carries.
Description of drawings
Fig. 1 is an electric functional-block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Mark is as follows among the figure: magnetic field sensing probe 1, rectification circuit 2, discharge circuit 3, illuminating circuit 4.
Embodiment
Show among the figure that the utility model is made up of magnetic field sensing probe 1, rectification circuit 2, amplifying circuit 3, illuminating circuit 4.
Rectification circuit 2 is formed half-wave rectifying circuit by diode D1, D2, resistance R 2, capacitor C 1, and the magnetic field sensing probe connects the input end of rectification circuit, the output termination discharge circuit 3 of rectification circuit.The ac signal of rectification circuit 2 sensing probe 1 induction herein is transformed into direct current signal, sends in the discharge circuit 3.
Discharge circuit 3 is made up of operational amplifier IC1, IC2, resistance R 3-R7, potentiometer W1, capacitor C 2, diode D2.Operational amplifier IC1 in-phase input end connects the output terminal of rectification circuit 2, operational amplifier IC1 reverse input end is connected on operational amplifier IC1 output terminal by potentiometer W1, the output terminal of operational amplifier IC1 connects the in-phase input end of operational amplifier IC2 by diode D2, the reverse input end of operational amplifier IC2 connects power supply, the output terminal sending and receiving optical circuit 4 of operational amplifier IC2.Discharge circuit 3 amplifies the signal of rectification circuit 2 inputs, is transported in the illuminating circuit 4.
The model of operational amplifier IC1, IC2 that the embodiment of the present utility model that shows among the figure adopts is a TLC2252 amplifier piece, and the model of triode BG1 is C9014.
Using method of the present utility model:
One, identification cable methods:
At first check recognizer.Pin the power switch K of recognizer, the position (sensing station) that has sign near recognizer with the little screwdriver of carrying magnetic is when rocking, and the bright explanation recognizer of light emitting diode red colored lamp is working properly, can use.When recognizer uses, we pin the recognizer P cock has a sign with recognizer position near the cable sheath that will detect near the time red light bright, illustrate that tested cable has electric current to pass through, otherwise no current passes through;
The cable that affirmation will be looked for.At first let us the logical alternating current of going up of the cable that will confirm as detection signal, (unarmored cable 5-10A electric current is about sheathed cable 30A), to do signal source with load current just more convenient if load current can satisfy above-mentioned requirements.To the cable galvanization of needs discriminating, have a power failure (cutout) threshes three times then, and each energising (galvanization) or power failure (stream cuts off the power supply) once just notify the testing staff to detect once with recognizer on every cable, note testing result.Have only unique detected signal change frequency of a cable corresponding with the number of times of the cable power on/off (electric current) of our institute's plus signal in the testing result, this cable is exactly that we will confirm cable so;
Two, look into the cable fault point methods:
Confirmed that at first cable is over the ground or phase fault, going up a side mutually at cable short circuit then boosts with pressure regulator and makes short circuit mutually or one relatively form electric current (non-armouring is raised to more than the 5A its electric current, sheathed cable be raised to 30A with) make signal source, adding this side of electric current with recognizer along cable detects, detect signal at short dot with the planted agent, the recognizer red light is bright, cross certain and a bit detect less than the signal instruction trouble spot just there being the unexpected mistake of signal a bit not have on this aspect of signal back, try twice in this and just can confirm;
Three, whether surveillance equipment moves:
We are fixed on cable identifier on the cable that need to monitor, the bright devices illustrated running of red light, and the red light devices illustrated of going out shuts down.
Points for attention:
1, because this cable identifier according to electromagnetic induction principle work, therefore electric current must be arranged as signal source, otherwise can't discern cable, in order to prevent that big electric current high-intensity magnetic field from disturbing, in use tested cable and other cable must be separated the certain distance distance, the distance size is according to the decision of the size of the cable current around the scene, during detection, it is near more good more that recognizer and tested cable paste, with other cable from must interference far away more more little;
When 2, discerning every cable cable, minimum as stated above identification three times, three times the testing result results must match with cable energising outage stream number of times, guarantee accurately.
Claims (4)
1. the cable identifier of detection streamer operation and fault, it is characterized in that: it is made up of magnetic field sensing probe [1], rectification circuit [2], discharge circuit [3], illuminating circuit [4], magnetic field sensing probe [1], rectification circuit [2], discharge circuit [3], illuminating circuit [4] connect successively, discharge circuit [3] adopts two operational amplifiers to be connected, and illuminating circuit [4] adopts triode to be connected with light emitting diode.
2. the cable identifier of detection streamer operation according to claim 1 and fault, it is characterized in that: described rectification circuit [2] is formed half-wave rectifying circuit by diode D1, D2, resistance R 2, capacitor C 1, magnetic field sensing probe [1] connects the input end of rectification circuit [2], the output termination discharge circuit [3] of rectification circuit [2].
3. the cable identifier of detection streamer operation according to claim 2 and fault, it is characterized in that: described discharge circuit [3] is by operational amplifier IC1, IC2, resistance R 3-R7, potentiometer W1, capacitor C 2, diode D2 forms, operational amplifier IC1 in-phase input end connects the output terminal of rectification circuit [2], operational amplifier IC1 reverse input end is connected on operational amplifier IC1 output terminal by potentiometer W1, the output terminal of operational amplifier IC1 connects the in-phase input end of operational amplifier IC2 by diode D2, the reverse input end of operational amplifier IC2 connects power supply, the output terminal sending and receiving optical circuit [4] of operational amplifier IC2.
4. the cable identifier of detection streamer operation according to claim 3 and fault, it is characterized in that: described illuminating circuit [4] is made up of triode BG1 and LED 1, the base stage of triode BG1 connects the output terminal of discharge circuit [3], LED 1 is connected on the collector of triode BG1, the grounded emitter of triode BG1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205499988U CN201812026U (en) | 2010-09-30 | 2010-09-30 | Electric cable recognizer for detecting electric cable operation and stoppage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205499988U CN201812026U (en) | 2010-09-30 | 2010-09-30 | Electric cable recognizer for detecting electric cable operation and stoppage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812026U true CN201812026U (en) | 2011-04-27 |
Family
ID=43894967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205499988U Expired - Fee Related CN201812026U (en) | 2010-09-30 | 2010-09-30 | Electric cable recognizer for detecting electric cable operation and stoppage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425455A (en) * | 2013-08-15 | 2013-12-04 | 天津市北海通信技术有限公司 | IO (Input/Output) interface controller |
| CN103809074A (en) * | 2014-03-10 | 2014-05-21 | 江苏省电力公司阜宁县供电公司 | Power cable safety identification device and method |
-
2010
- 2010-09-30 CN CN2010205499988U patent/CN201812026U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425455A (en) * | 2013-08-15 | 2013-12-04 | 天津市北海通信技术有限公司 | IO (Input/Output) interface controller |
| CN103809074A (en) * | 2014-03-10 | 2014-05-21 | 江苏省电力公司阜宁县供电公司 | Power cable safety identification device and method |
| CN103809074B (en) * | 2014-03-10 | 2016-04-27 | 江苏省电力公司盐城供电公司 | A kind of power cable safety distinguishing apparatus and recognition methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130930 |