CN204269753U - Paired cable type fault detector - Google Patents
Paired cable type fault detector Download PDFInfo
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- CN204269753U CN204269753U CN201420782074.0U CN201420782074U CN204269753U CN 204269753 U CN204269753 U CN 204269753U CN 201420782074 U CN201420782074 U CN 201420782074U CN 204269753 U CN204269753 U CN 204269753U
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Abstract
The utility model relates to a kind of paired cable type fault detector, comprise the current sensor and indicating member that are connected, current sensor is divided into the first and second line current sensor groups, indicating member comprises signal processing circuit, signal transacting and logical operation circuit, control module, first output unit, second output unit and far-end reset self-checking circuit, the output terminal of first line current sensor group and the second line current sensor group is connection signal treatment circuit and signal transacting and logical operation circuit respectively, the equal Access Control unit of output of signal processing circuit and signal transacting and logical operation circuit, control module has two output channels at least, the input end of the first output unit and the second output unit is connected respectively in the different output channels of control module, the output terminal one tunnel connection signal process of far-end reset self-checking circuit and logical operation circuit, another road connection control unit.The utility model can carry out detection alarm instruction to more multi-line at lower cost.
Description
Technical field
The utility model relates to a kind of electric fault indicator, particularly relates to a kind of indicator detecting electrical equipment short circuit and earth fault on electric system 10 to 35KV power supply-distribution system.
Background technology
The existing indicator for detecting electrical equipment short circuit and earth fault can only detect a road cable warning message, when needs carry out warning instruction to more check point, usually will use multiple stage fault detector simultaneously, cause cost to be multiplied.
Utility model content
In order to overcome the above-mentioned defect under prior art, the purpose of this utility model is to provide a kind of paired cable type fault detector, detection alarm instruction can be carried out to more circuit, and cost lower than under prior art for detect equal number circuit and adopt the cost that multiple indicator spends simultaneously.
The technical solution of the utility model is:
A kind of paired cable type fault detector, comprise the current sensor and indicating member that are connected, described current sensor is divided into first line current sensor group and the second line current sensor group, described indicating member comprises signal processing circuit, signal transacting and logical operation circuit, control module, first output unit, second output unit and far-end reset self-checking circuit, the output terminal of described first line current sensor group and the second line current sensor group is connection signal treatment circuit and signal transacting and logical operation circuit respectively, the equal Access Control unit of output of signal processing circuit and signal transacting and logical operation circuit, control module has two output channels at least, the input end of the first output unit and the second output unit is connected respectively in the different output channels of control module, the output terminal one tunnel connection signal process of described far-end reset self-checking circuit and logical operation circuit, another road connection control unit.
Described current sensor is preferably the current sensor of output signal for light signal, and the output terminal of described current sensor and the input end of indicating member adopt optical fiber to be connected.
Photoelectric switching circuit is provided with in described signal processing circuit.
Described signal transacting and logical operation circuit preferably include photoelectric switching circuit, logical operation circuit and trigger circuit, the output terminal of described photoelectric switching circuit and far-end reset self-checking circuit accesses described logical operation circuit respectively, the output terminal of described logical operation circuit connects described trigger circuit, and the output terminal of described trigger circuit forms the output terminal of described signal transacting and logical operation circuit.
Described first output unit and the second output unit can be provided with fault alarm output unit and accident indicator separately.
Described accident indicator can adopt LED display module, and the accident indicator of the first output unit and the second output unit preferably adopts the two-way in two-way LED display module to form respectively.
Described indicating member is preferably provided with power module.
Described indicating member is also preferably provided with the low-voltage alarm circuit that can detect power module voltage.
Short-circuit current sensor and zero sequence current sensor can be comprised in each described line current sensor group.
Described short-circuit current sensor and zero sequence current sensor are preferably open type current transformer.
The beneficial effects of the utility model are: the function that can realize a road detection more than traditional indicator with almost identical cost, other functions are simultaneously more, can meet the needs of electric power transmission Cable fault examination better.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model;
Fig. 2 is the structural representation of signal transacting and logical operation circuit.
Embodiment
The utility model discloses a kind of paired cable type fault detector, as shown in Figure 1, comprise the current sensor 7 and indicating member 1 that are connected, described current sensor is divided into first line current sensor group and the second line current sensor group, described indicating member comprises signal processing circuit 2, signal transacting and logical operation circuit 3, control module 4, first output unit and the second output unit 5 and far-end reset self-checking circuit 6, the output terminal of described first line current sensor group and the second line current sensor group is connection signal treatment circuit and signal transacting and logical operation circuit respectively, the equal Access Control unit of output of signal processing circuit and signal transacting and logical operation circuit, control module has two output channels at least, the input end of the first output unit and the second output unit is connected respectively in the different output channels of control module, the output terminal one tunnel connection signal process of described far-end reset self-checking circuit and logical operation circuit, another road connection control unit.Described signal processing circuit, control module, the first output unit form the first warning outlet line, and described signal transacting and logical operation circuit, control module, the second output unit form the second warning outlet line.This indicator road measuring ability more than conventional display, can detect a road more and report to the police.According to the connected mode shown in Fig. 1, indicator can detect the failure message of first line and the second circuit.A1, B1, C1 of first line and the failure message of zero sequence 1 send into the signal processing circuit of indicator by wire 8 by the collection of sensor, then give control module 4.A2, B2, C2 of second circuit and the failure message of zero sequence 2 send into signal transacting and the logical operation circuit of indicator by wire 8 by sensor collection, send into control module 4 after the reset signal sent carries out logical operation with far-end reset self-checking circuit 6 again.Control module 4 thinks alerting signal by identification, then controls output unit 5 output alarm.Far-end reset self-checking circuit can provide on-the-spot and long-range two kinds of reset modes, when indicator is reported to the police, even if staff also can long-rangely not make indicator reset at the scene.
Described current sensor is preferably the current sensor of output signal for light signal, and the output terminal of described current sensor and the input end of indicating member adopt optical fiber to be connected, and Signal transmissions is fast, and Signal transmissions is not by the impact of power network fluctuation.
Be provided with photoelectric switching circuit in described signal processing circuit, carry out opto-electronic conversion to the light warning message that current sensor is come, converted signals sends into control module.
As shown in Figure 2, described signal transacting and logical operation circuit preferably include photoelectric switching circuit 10, logical operation circuit 11 and trigger circuit 12, the output terminal of described photoelectric switching circuit and far-end reset self-checking circuit accesses described logical operation circuit respectively, the output terminal of described logical operation circuit connects described trigger circuit, and the output terminal of described trigger circuit forms the output terminal of described signal transacting and logical operation circuit.Photoelectric switching circuit carries out opto-electronic conversion to warning message, the reset signal that this warning message and far-end reset self-checking circuit export is admitted to logical operation circuit and carries out logical operation, logic operation result sends to trigger circuit, and trigger circuit output signal to control module again.The identification signal that another road of far-end reset self-checking circuit exports directly sends to control module.After the output trigger control unit of trigger circuit, carry out identifying information again by control module, judgement is alerting signal or far-end reset signal, is saving the function basis with the hardware port resource of Trigger Function achieving and detects on many roads.
Described first output unit and the second output unit can be provided with fault alarm output unit and accident indicator separately.Two-way fault alarm output unit can drive external unit such as relay to reduce misoperation respectively.Described accident indicator can adopt LED display module, and the accident indicator of the first output unit and the second output unit preferably adopts the two-way in two-way LED display module to form respectively, and instruction obviously.Two-way exports can show two-way short-circuit alarming information and two-way grounding alarm information respectively.
Described indicating member is preferably provided with power module, specifically can adopt lithium battery, powers for each several part for indicating member.Due to without the need to external power supply, therefore can prevent power network fluctuation from having an impact to indicator.Reach 7.5uA by control module process stand-by power consumption, 35 years can be used continuously.
Described indicating member is also preferably provided with the low-voltage alarm circuit that can detect power module voltage.Be provided with the voltage monitoring device can monitoring power module voltage in low-voltage alarm circuit, when the low voltage of power module, power module can be changed in time by the warning indicating section reminding user of low-voltage alarm circuit.Because low-voltage alarm circuit adopts the monitoring of hardware implementing supply voltage, power consumption is little, compares and utilizes software program constantly to detect and computing, significantly reduces taking and the complexity of program control module resource.
Short-circuit current sensor and zero sequence current sensor can be comprised, such as three short-circuit current sensors and a zero sequence current sensor in each described line current sensor group.Described short-circuit current sensor and zero sequence current sensor are preferably open type current transformer.Described current sensor all adopts self powered current sensor, and power free structure, decreases power consumption, convenient installation.
The utility model can detect more line fault than conventional display, and when detecting way and being identical, cost is lower.
Claims (10)
1. a paired cable type fault detector, comprise the current sensor and indicating member that are connected, it is characterized in that described current sensor is divided into first line current sensor group and the second line current sensor group, described indicating member comprises signal processing circuit, signal transacting and logical operation circuit, control module, first output unit, second output unit and far-end reset self-checking circuit, the output terminal of described first line current sensor group and the second line current sensor group is connection signal treatment circuit and signal transacting and logical operation circuit respectively, the equal Access Control unit of output of signal processing circuit and signal transacting and logical operation circuit, control module has two output channels at least, the input end of the first output unit and the second output unit is connected respectively in the different output channels of control module, the output terminal one tunnel connection signal process of described far-end reset self-checking circuit and logical operation circuit, another road connection control unit.
2. paired cable type fault detector as claimed in claim 1, it is characterized in that described current sensor is the current sensor of output signal for light signal, the output terminal of described current sensor and the input end of indicating member adopt optical fiber to be connected.
3. paired cable type fault detector as claimed in claim 2, it is characterized in that being provided with photoelectric switching circuit in described signal processing circuit, described signal transacting and logical operation circuit comprise photoelectric switching circuit, logical operation circuit and trigger circuit, the output terminal of described photoelectric switching circuit and far-end reset self-checking circuit accesses described logical operation circuit respectively, the output terminal of described logical operation circuit connects described trigger circuit, and the output terminal of described trigger circuit forms the output terminal of described signal transacting and logical operation circuit.
4. paired cable type fault detector as claimed in claim 3, is characterized in that described first output unit and the second output unit are provided with fault alarm output unit and accident indicator separately.
5. paired cable type fault detector as claimed in claim 4, it is characterized in that adopting two-way LED display module, the two-way in described two-way LED display module forms the accident indicator of the first output unit and the accident indicator of the second output unit respectively.
6. the paired cable type fault detector as described in claim 1,2,3,4 or 5, is characterized in that described indicating member is provided with power module.
7. paired cable type fault detector as claimed in claim 6, it is characterized in that described indicating member is also provided with low-voltage alarm circuit, low-voltage alarm circuit is provided with the voltage monitoring device for detecting supply voltage.
8. paired cable type fault detector as claimed in claim 7, is characterized in that each described line current sensor group comprises short-circuit current sensor and zero sequence current sensor.
9. paired cable type fault detector as claimed in claim 8, is characterized in that described short-circuit current sensor and zero sequence current sensor are open type current transformer.
10. paired cable type fault detector as claimed in claim 9, is characterized in that described current sensor adopts self powered current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782074.0U CN204269753U (en) | 2014-12-12 | 2014-12-12 | Paired cable type fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782074.0U CN204269753U (en) | 2014-12-12 | 2014-12-12 | Paired cable type fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269753U true CN204269753U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782074.0U Expired - Fee Related CN204269753U (en) | 2014-12-12 | 2014-12-12 | Paired cable type fault detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204269753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058070A (en) * | 2018-01-19 | 2019-07-26 | 深圳信息职业技术学院 | Data acquisition equipment and online monitoring system |
-
2014
- 2014-12-12 CN CN201420782074.0U patent/CN204269753U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058070A (en) * | 2018-01-19 | 2019-07-26 | 深圳信息职业技术学院 | Data acquisition equipment and online monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Twin-cable-type fault indicator Effective date of registration: 20180803 Granted publication date: 20150415 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING HYLITON POWER TECHNOLOGY Co.,Ltd. Registration number: 2018990000645 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210413 Granted publication date: 20150415 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING HYLITON POWER TECHNOLOGY Co.,Ltd. Registration number: 2018990000645 |
|
| 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: 20150415 |