CN203405532U - Cable line fault indicator having current measuring function - Google Patents
Cable line fault indicator having current measuring function Download PDFInfo
- Publication number
- CN203405532U CN203405532U CN201320527431.4U CN201320527431U CN203405532U CN 203405532 U CN203405532 U CN 203405532U CN 201320527431 U CN201320527431 U CN 201320527431U CN 203405532 U CN203405532 U CN 203405532U
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- control unit
- cable line
- main control
- current
- circuit
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a cable line fault indicator having a current measuring function. The indicator comprises a current acquisition terminal, a first switch circuit, a trigging control circuit and a master control unit successively connected, wherein the trigging control circuit sends trigging signals to the master control unit when acquired current signals are abnormal, and the master control unit receives the trigging signals, analyzes and processes the acquired current signals. The output terminal of the current acquisition terminal is successively connected with a second switch circuit and a signal processing circuit. The output terminal of the signal processing circuit is connected with the sampling signal input terminal of the master control unit. The switch control signal output terminal of the master control unit is connected with the control terminals of the first switch circuit and the second switch circuit. The master control unit is connected with a data sending unit used for sending analyzed and processed current signals. The indicator not only has a fault indicating function when the current of a cable line is abnormal, but also has functions of measuring and real-timely monitoring the current of the cable line.
Description
Technical field
The utility model relates to a kind of cable line fault indicator, relates in particular to a kind of cable line fault indicator of belt current measurement function.
Background technology
Existing cable line fault indicator only possesses the alarm indication function under line current failure condition mostly, does not possess fault current value and measures and real-time current value monitoring function.
Utility model content
For overcoming the above-mentioned defect of prior art, the purpose of this utility model is to provide a kind of cable line fault indicator of belt current measurement function, can measure and Real-Time Monitoring the fault current value of cable line.
The technical solution adopted in the utility model is: a kind of cable line fault indicator of belt current measurement function, comprise the current acquisition terminal connecting successively, the first on-off circuit, for the current signal when collection, occur when abnormal sending the trigger control circuit of trigger pip and for receiving trigger pip to main control unit, the main control unit of the current signal that analyzing and processing gathers, the output terminal of described current acquisition terminal is also connected with second switch circuit and signal processing circuit in turn, the output terminal of described signal processing circuit connects the sampled signal input end of described main control unit, the switch controlling signal output terminal of described main control unit connects respectively the control end of described the first on-off circuit and second switch circuit, described main control unit is connected with for sending the data transmission unit of the current signal after analyzing and processing.
Described main control unit can be connected with for the abnormal indicating member of circuit current signal.
Communication mode between described main control unit and described data transmission unit can be optical fiber communication, and described main control unit all can be provided with for being connected the serial ports of optical fiber with data transmission unit.
Described current acquisition terminal is preferably winding.
The cable line fault indicator of described belt current measurement function can also comprise electric current electricity taking terminal, rectification filtering unit and the voltage regulation unit connecting successively, and the output terminal of described voltage regulation unit connects the power input of described main control unit.
Described main control unit can also be connected with the power supply unit that is used to fault detector power supply.
Described rectification filtering unit can be rectifier bridge.
Described voltage regulation unit can be unidirectional TVS pipe.
Described electric current electricity taking terminal is preferably winding.
The cable line fault indicator of described belt current measurement function can be provided with shell, and described shell is preferably the insulation crust that adopts epoxy resin encapsulated.
The beneficial effects of the utility model: the utility model not only has the function that indicating fault appears carrying out when abnormal in electric current at cable line, measurement and the Real-Time Monitoring also with cable line current value, and will after the current signal analyzing and processing of collection, send to the function of host computer.
The utility model adopts two kinds of power supply modes, and a kind of for to power by inner power supply unit, another kind is power taking in cable line, and the two can freely switch, and can effectively save the electric energy of built-in power supply unit without externally fed in the situation that.
Accompanying drawing explanation
Fig. 1 is the utility model principle of work block diagram;
Fig. 2 is circuit theory schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of cable line fault indicator of belt current measurement function, be mainly used to detect short circuit and earth fault, also possess fault current detection reports to the police and real-time current measurement function simultaneously, comprise the current acquisition terminal 1 connecting successively, the first on-off circuit 3, for the current signal when collection, occur when abnormal sending that trigger pip is waken the trigger control circuit 7 of the main control unit in dormant state up and for receiving trigger pip to main control unit, the main control unit 9 of the current signal that analyzing and processing gathers, the output terminal of described current acquisition terminal is also connected with second switch circuit 5 and signal processing circuit 4 in turn, the output terminal of described signal processing circuit connects the sampled signal input end of described main control unit, for giving described main control unit by the current signal transfer gathering, the switch controlling signal output terminal of described main control unit connects respectively the control end of described the first on-off circuit and second switch circuit, for controlling the break-make of described the first on-off circuit and second switch circuit, described main control unit is connected with for sending the data transmission unit 12 of the current signal after analyzing and processing.
Communication mode between described main control unit and described data transmission unit can be optical fiber communication, correspondingly, described main control unit all can be provided with for being connected the serial ports of optical fiber with data transmission unit, and described data transmission unit is for sending to two distant communicating terminals by the data-signal from described main control unit.
Described main control unit can be connected with for the abnormal indicating member 11 of circuit current signal, and for indication warning when current anomaly appears in cable line, the display terminal of described indicating member can be LCDs and/or LED light.
Described current acquisition terminal is preferably measurement winding, and described measurement is preferably high precision level winding with winding, mainly completes the collecting work of line current signal to be measured, and when the utility model is used, described measurement winding is serially connected with primary side circuit to be monitored.
The cable line fault indicator of described belt current measurement function also comprises electric current electricity taking terminal 2, rectification filtering unit 6 and the voltage regulation unit 8 connecting successively; the output terminal of described voltage regulation unit connects the power input of described main control unit; for providing work power supply from cable line power taking for each unit and circuit; described rectification filtering unit and voltage regulation unit are mainly used in the protection of subsequent conditioning circuit; described rectification filtering unit can adopt rectifier bridge, and described voltage regulation unit can adopt unidirectional TVS pipe.
Described main control unit can also be connected with and be used to each unit of fault detector and the power supply unit 10 of circuit supply, and described power supply unit can adopt high-capacity lithium battery.
Adopt above-mentioned two kinds of power supply modes, can freely switch according to actual needs, without externally fed in the situation that, can effectively save the electric energy of power supply unit, also can play the standby effect of the using and the reserved.The utility model has adopted low-power consumption processing, and quiescent dissipation is less than 10 μ A.
Described electric current electricity taking terminal is preferably current mode power supply winding, and described current mode power supply winding can be common power supply winding, and less demanding to degree of accuracy has been mainly current-taking function.
Each unit of the present utility model, switch and circuit can be integrated on a circuit board, described fault detector can be provided with shell, the display terminal of described current acquisition terminal, electric current electricity taking terminal and indicating member is exposed at the outside of described shell, described shell is preferably the insulation crust that adopts epoxy resin encapsulated, explosion-proof fire-retardant, use safety.
The course of work of the present utility model is: in normal operation, the utility model is in low power consumpting state, by measurement, with the current value that winding is treated Monitoring Line, measure in real time, now, the first on-off circuit is in closure state, second switch circuit is in off-state, electric current in cable line occurs when abnormal, trigger control circuit is sent trigger pip and is waken the main control unit in dormant state up, main control unit sends switch controlling signal, the first on-off circuit is disconnected, second switch closing of circuit, measurement sends main control unit to the current signal of winding collection, main control unit carries out analyzing and processing to the current signal gathering, by indicating member, carry out fault alarm, and the data-signal after analyzing and processing is uploaded by data transmission unit.The utility model can adopt built-in high-capacity lithium battery power supply, also can pass through the power taking from cable line of current mode power supply winding.
Claims (10)
1. the cable line fault indicator of a belt current measurement function, it is characterized in that comprising the current acquisition terminal connecting successively, the first on-off circuit, for the current signal when collection, occur when abnormal sending the trigger control circuit of trigger pip and for receiving trigger pip to main control unit, the main control unit of the current signal that analyzing and processing gathers, the output terminal of described current acquisition terminal is also connected with second switch circuit and signal processing circuit in turn, the output terminal of described signal processing circuit connects the sampled signal input end of described main control unit, the switch controlling signal output terminal of described main control unit connects respectively the control end of described the first on-off circuit and second switch circuit, described main control unit is connected with for sending the data transmission unit of the current signal after analyzing and processing.
2. the cable line fault indicator of belt current measurement function as claimed in claim 1, is characterized in that described main control unit is connected with for the abnormal indicating member of circuit current signal.
3. the cable line fault indicator of belt current measurement function as claimed in claim 1, it is characterized in that the communication mode between described main control unit and described data transmission unit is optical fiber communication, described main control unit is equipped with for being connected the serial ports of optical fiber with data transmission unit.
4. the cable line fault indicator of belt current measurement function as claimed in claim 1, is characterized in that described current acquisition terminal is winding.
5. the cable line fault indicator of the belt current measurement function as described in claim 1,2,3 or 4, characterized by further comprising the electric current electricity taking terminal, rectification filtering unit and the voltage regulation unit that connect successively, the output terminal of described voltage regulation unit connects the power input of described main control unit.
6. the cable line fault indicator of belt current measurement function as claimed in claim 5, is characterized in that described main control unit is also connected with the power supply unit that is used to fault detector power supply.
7. the cable line fault indicator of belt current measurement function as claimed in claim 5, is characterized in that described rectification filtering unit is rectifier bridge.
8. the cable line fault indicator of belt current measurement function as claimed in claim 5, is characterized in that described voltage regulation unit is unidirectional TVS pipe.
9. the cable line fault indicator of belt current measurement function as claimed in claim 5, is characterized in that described electric current electricity taking terminal is winding.
10. the cable line fault indicator of belt current measurement function as claimed in claim 6, is characterized in that being provided with shell, and described shell is for adopting the insulation crust of epoxy resin encapsulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527431.4U CN203405532U (en) | 2013-08-28 | 2013-08-28 | Cable line fault indicator having current measuring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320527431.4U CN203405532U (en) | 2013-08-28 | 2013-08-28 | Cable line fault indicator having current measuring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405532U true CN203405532U (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320527431.4U Expired - Fee Related CN203405532U (en) | 2013-08-28 | 2013-08-28 | Cable line fault indicator having current measuring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203405532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785228A (en) * | 2016-04-14 | 2016-07-20 | 无锡南理工科技发展有限公司 | Multifunctional communication cable fault tester |
| CN111398746A (en) * | 2019-12-24 | 2020-07-10 | 国网北京市电力公司 | High-voltage cable partial discharge detection device |
-
2013
- 2013-08-28 CN CN201320527431.4U patent/CN203405532U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785228A (en) * | 2016-04-14 | 2016-07-20 | 无锡南理工科技发展有限公司 | Multifunctional communication cable fault tester |
| CN111398746A (en) * | 2019-12-24 | 2020-07-10 | 国网北京市电力公司 | High-voltage cable partial discharge detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20180828 |