CN203881895U - Direct current system loop circuit insulation monitoring device - Google Patents
Direct current system loop circuit insulation monitoring device Download PDFInfo
- Publication number
- CN203881895U CN203881895U CN201420237038.6U CN201420237038U CN203881895U CN 203881895 U CN203881895 U CN 203881895U CN 201420237038 U CN201420237038 U CN 201420237038U CN 203881895 U CN203881895 U CN 203881895U
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- processor
- insulation monitoring
- current system
- system loop
- warning device
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- 238000009413 insulation Methods 0.000 title claims abstract description 33
- 238000012806 monitoring device Methods 0.000 title abstract 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses a direct current system loop circuit insulation monitoring device comprising a host processor which is connected with a display, a bus connection interface, a plurality of first line selection circuit and at least one extension set device, wherein the extension set device comprises an extension set processor which is connected with a plurality of second line selection circuits, and the host processor is in communication connection with the extension set processor. The direct current system loop circuit insulation monitoring device can solve the problem that a conventional insulation monitoring device cannot be used for monitoring a large number of feed lines, and therefore an aim that the number of feed lines monitored by one insulation monitoring device can be expanded is attained. The direct current system loop circuit insulation monitoring device disclosed in the utility model can be widely applied to the field of direct current system monitoring.
Description
Technical field
The utility model relates to electronic circuit technology, relates in particular to a kind of direct-current system loop insulation monitoring and warning device.
Background technology
At present, move or larger in transformer station's scale of founding a capital, for example 500KV transformer station, the DC feeder of its straight-flow system is all many, and therefore, this DC feeder quantitative requirement that can monitor insulation monitoring and warning device is higher.Current insulation monitoring and warning device can connect at most 16 finding circuits, and each finding circuit can Lian14 road DC feeder, and an insulation monitoring and warning device can be monitored at most 224 road DC feeders.But if there is the transformer station of multiple cells, the quantity of DC feeder will exceed 224, so can cause an insulation monitoring and warning device cannot monitor all DC feeders, thereby cannot meet the requirement of DC system insulating monitoring.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of direct-current system loop insulation monitoring and warning device.
The technical scheme that the utility model adopts is: a kind of direct-current system loop insulation monitoring and warning device, it comprises host-processor, described host-processor is connected with respectively display, bus connecting interface, multiple the first finding circuit and at least one extension facility, described extension facility comprises extension set processor, described extension set processor is connected with multiple the second finding circuits, and communication is connected described host-processor with extension set processor.
Further, described host-processor is also connected with respectively voltage collection circuit and resistance control circuit.
Further, described voltage collection circuit comprises voltage acquisition interface and analog to digital converter, and described voltage acquisition interface is connected with host-processor by analog to digital converter.
Further, described resistance control circuit comprises resistor bridge device, first control circuit, adjustable resistor and second control circuit, described host-processor is connected with resistor bridge device by first control circuit, and described host-processor is connected with adjustable resistor by second control circuit.
Further, described host-processor carries out communication by wireless communication mode and extension set processor and is connected.
Further, described host-processor carries out communication by 485 buses with multiple the first finding circuits and is connected.
Further, described extension set processor carries out communication by 485 buses with multiple the second finding circuits and is connected.
Further, described host-processor is also connected with keyboard.
Further, described host-processor is also connected with communication interface with pc.
Further, described host-processor is also connected with alarm module.
The beneficial effects of the utility model are: because the utility model is provided with at least one extension facility, therefore, the utility model can solve an insulation monitoring and warning device of tradition cannot monitor the problem of a large amount of feeder lines, and reaches the object of an insulation monitoring and warning device monitoring feeder line quantity of expansion.And this insulation monitoring and warning device also have simple in structure, be easy to the advantages such as realization.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the structured flowchart of a kind of direct-current system loop insulation monitoring and warning device of the utility model;
Fig. 2 is the concrete enforcement structured flowchart of a kind of direct-current system loop insulation monitoring and warning device of the utility model.
Embodiment
As depicted in figs. 1 and 2, a kind of direct-current system loop insulation monitoring and warning device, it comprises host-processor, described host-processor is connected with respectively display, bus connecting interface, multiple the first finding circuit and at least one extension facility, described extension facility comprises extension set processor, described extension set processor is connected with multiple the second finding circuits, and communication is connected described host-processor with extension set processor.Described the second finding circuit by obtain data upload to extension set processor, and described extension set processor by this data upload to host-processor.
In addition, the quantity of attachable the second finding circuit of described extension set processor, and the quantity of the attachable extension set processor of host-processor, can arrange according to actual conditions.Conventionally, described extension set processor can connect 16 the second finding circuits, and described host-processor can connect 20 extension set processors.Further, the first described finding circuit all can be connected with feeder line by current transformer with the second finding circuit.
Obtained by above-mentioned, this insulation monitoring and warning device is provided with at least one extension facility, and multiple the second finding circuits that extension facility described in one comprises extension set processor and is connected with extension set processor, described extension set processor is connected with host-processor communication, therefore,, by using this insulation monitoring and warning device, just can monitor a large amount of DC feeders, solve insulation monitoring and warning device of tradition and cannot monitor the problem of a large amount of feeder lines, reach the object of expansion monitoring feeder line quantity.And this insulating monitoring also have simple in structure, be easy to the advantages such as realization.
Be further used as preferred embodiment, described extension set processor also can be connected with the input-output device such as display screen and button.
Be further used as preferred embodiment, described host-processor is also connected with respectively voltage collection circuit and resistance control circuit;
Described voltage collection circuit comprises voltage acquisition interface and analog to digital converter, described voltage acquisition interface is connected with host-processor by analog to digital converter, collect after data by voltage acquisition interface, utilize analog to digital converter that the data that collect are carried out to analog to digital conversion and the data after conversion are sent to host-processor;
Described resistance control circuit comprises resistor bridge device, first control circuit, adjustable resistor and second control circuit, described host-processor is connected with resistor bridge device by first control circuit, and described host-processor is connected with adjustable resistor by second control circuit.Described first control circuit and second control circuit include a relay.When use, the two ends of resistance control circuit are connected in circuit system, then in the time of host-processor output voltage, the switch closure of relay, thus make in resistor bridge device and adjustable resistor connecting system circuit, otherwise, when host-processor is not when output voltage, the switch of relay disconnects, thereby uses resistor bridge device and adjustable resistor not in connecting system circuit, can obtain thus, resistance control circuit is mainly used for controlling resistor bridge device and adjustable resistor whether in connecting system circuit.
Be further used as preferred embodiment, described host-processor carries out communication by wireless communication mode and extension set processor and is connected.Described wireless communication mode comprises ZIGBEE wireless communication mode, WIFI wireless communication mode, blue tooth wireless communication mode etc.Preferably, described wireless communication mode is ZIGBEE wireless communication mode because it is easy to realize, and stability and reliability higher, and cost is low.
Be further used as preferred embodiment, described host-processor carries out communication by 485 buses with multiple the first finding circuits and is connected.Described extension set processor carries out communication by 485 buses with multiple the second finding circuits and is connected.Communication modes between described host-processor and multiple the first finding circuit, and communication modes between described extension set processor and multiple the second finding circuit, it is not limited to this mode of 485 buses.
Be further used as preferred embodiment, described host-processor is also connected with keyboard.For described display and keyboard, it can adopt LED touching display screen or LCD touching display screen to realize.
Be further used as preferred embodiment, described host-processor is also connected with communication interface with pc.Described communication interface with pc can be Ethernet interface, USB interface, SPI interface etc.
Be further used as preferred embodiment, described host-processor is also connected with alarm module.Described alarm module can be LED display lamp, display screen or speech player.
It should be noted that, the utility model only relates to structural improvement, do not relate to the improvement in method, although the host-processor relating in the utility model and extension set processor relate to the content of data transmission, but it is all to adopt prior art means, in data processing method, does not have any improvement, therefore, the utility model does not relate to the improvement in the methods such as data processing, does not relate to the improvement on any software.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (10)
1. a direct-current system loop insulation monitoring and warning device, it is characterized in that: it comprises host-processor, described host-processor is connected with respectively display, bus connecting interface, multiple the first finding circuit and at least one extension facility, described extension facility comprises extension set processor, described extension set processor is connected with multiple the second finding circuits, and communication is connected described host-processor with extension set processor.
2. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor is also connected with respectively voltage collection circuit and resistance control circuit.
3. a kind of direct-current system loop insulation monitoring and warning device according to claim 2, is characterized in that: described voltage collection circuit comprises voltage acquisition interface and analog to digital converter, described voltage acquisition interface is connected with host-processor by analog to digital converter.
4. a kind of direct-current system loop insulation monitoring and warning device according to claim 2, it is characterized in that: described resistance control circuit comprises resistor bridge device, first control circuit, adjustable resistor and second control circuit, described host-processor is connected with resistor bridge device by first control circuit, and described host-processor is connected with adjustable resistor by second control circuit.
5. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor carries out communication by wireless communication mode and extension set processor and is connected.
6. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor carries out communication by 485 buses with multiple the first finding circuits and is connected.
7. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described extension set processor carries out communication by 485 buses with multiple the second finding circuits and is connected.
8. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor is also connected with keyboard.
9. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor is also connected with communication interface with pc.
10. a kind of direct-current system loop insulation monitoring and warning device according to claim 1, is characterized in that: described host-processor is also connected with alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237038.6U CN203881895U (en) | 2014-05-09 | 2014-05-09 | Direct current system loop circuit insulation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237038.6U CN203881895U (en) | 2014-05-09 | 2014-05-09 | Direct current system loop circuit insulation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203881895U true CN203881895U (en) | 2014-10-15 |
Family
ID=51682379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237038.6U Expired - Lifetime CN203881895U (en) | 2014-05-09 | 2014-05-09 | Direct current system loop circuit insulation monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203881895U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327121A (en) * | 2020-11-13 | 2021-02-05 | 深圳市永联科技股份有限公司 | DC system insulation diagnosis self-coordination circuit and method |
| CN113466561A (en) * | 2021-07-23 | 2021-10-01 | 广西电网有限责任公司电力科学研究院 | Insulation monitoring system |
| CN113608065A (en) * | 2021-07-02 | 2021-11-05 | 中国电力科学研究院有限公司 | Multi-direct-current system ring network fault monitoring device and method |
-
2014
- 2014-05-09 CN CN201420237038.6U patent/CN203881895U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327121A (en) * | 2020-11-13 | 2021-02-05 | 深圳市永联科技股份有限公司 | DC system insulation diagnosis self-coordination circuit and method |
| CN112327121B (en) * | 2020-11-13 | 2022-05-27 | 深圳市永联科技股份有限公司 | DC system insulation diagnosis self-coordination circuit and method |
| CN113608065A (en) * | 2021-07-02 | 2021-11-05 | 中国电力科学研究院有限公司 | Multi-direct-current system ring network fault monitoring device and method |
| CN113608065B (en) * | 2021-07-02 | 2024-05-28 | 中国电力科学研究院有限公司 | Multi-direct-current system looped network fault monitoring device and method |
| CN113466561A (en) * | 2021-07-23 | 2021-10-01 | 广西电网有限责任公司电力科学研究院 | Insulation monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |