CN205484568U - Ground resistance's monitoring devices among electric power system - Google Patents
Ground resistance's monitoring devices among electric power system Download PDFInfo
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- CN205484568U CN205484568U CN201620123839.9U CN201620123839U CN205484568U CN 205484568 U CN205484568 U CN 205484568U CN 201620123839 U CN201620123839 U CN 201620123839U CN 205484568 U CN205484568 U CN 205484568U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 5
- 230000006870 function Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a ground resistance's monitoring devices among electric power system, including monitoring system, monitoring system includes embedded CPU, embedded CPU's input is connected with input module's output electricity, the input that the module was compared to data is connected to embedded CPU's output electricity, data are compared the input of module and still are connected with the output electricity of AD converter, the input of AD converter passes through the signal filtering ware to be connected with the output electricity of signal acquisition module, just the input of signal acquisition module is connected with voltage transformer and current transformer's output electricity respectively. This ground resistance's monitoring devices among electric power system has the function of timely discovery trouble, still has the function of timely completion warning work to accessible time the relevant personnel of suggestion maintain, work such as protection, can prevent that the trouble from magnifying.
Description
Technical field
This utility model relates to technical field of power systems, the monitoring device of earth resistance in a kind of power system.
Background technology
In power system, earthing mode mainly has resistance eutral grounding, resonance grounding and these several earthing modes earth-free.Wherein, resistance earthing has obtained increasingly being widely applied, and causes the resistance quantity of neutral ground to increase the most therewith, how to be monitored becoming a problem needing to pay attention to its operating mode.
For this situation, i.e. for earth resistance under operation, use at present tour personnel with seeing, listen, depending on, the method such as smell and monitor, while waste of manpower, labour, fault can't be found in time, thus the work such as warning can not be carried out in time, causing trouble expands, whole system is caused tremendous influence, to this end, it is proposed that the monitoring device of earth resistance in a kind of power system.
Utility model content
The purpose of this utility model is to provide the monitoring device of earth resistance in a kind of power system, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model following technical scheme of offer: the monitoring device of earth resistance in a kind of power system, including monitoring system, described monitoring system includes that embedded type CPU, the input of described embedded type CPU electrically connect with the outfan of input module.
The input of the outfan electrical connection comparing module of described embedded type CPU, the input of described comparing module also electrically connects with the outfan of A/D converter, the input of described A/D converter is electrically connected with the outfan of signal acquisition module by traffic filter, and the input of described signal acquisition module outfan with voltage transformer summation current transformer respectively electrically connects.
The outfan of described comparing module is electrically connected with the input of embedded type CPU by feedback module, and the outfan of described embedded type CPU electrically connects with the input of output module.
Described embedded type CPU is also two-way with speech memory to be electrically connected, and the outfan of described embedded type CPU is connected with the input of remote mobile terminal also by signal projector.
Preferably, described input module includes guidance panel.
Preferably, described output module includes siren and display.
Preferably, described siren is signal lamp and buzzer siren.
nullCompared with prior art，The beneficial effects of the utility model are: in this power system, the monitoring device of earth resistance first passes through the cooperation of input module and embedded type CPU，Qualified voltage range and electric current interval are sent to comparing module as comparing basis，Again by voltage transformer in this system、Current transformer、Signal acquisition module、Traffic filter、A/D converter and the cooperation of data comparing module，The electric current that will collect、The real data such as voltage carry out comparing with the comparison basis in comparing module，If comparison is defective，Then this system passes through feedback module、Embedded type CPU、The cooperation of siren in output module，Complete alert operation，Whole system can be made to have the function finding fault in time，Also there is the function completing alert operation in time，Thus related personnel can be pointed out in time to keep in repair、The work such as protection，Failure propagation can be prevented.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Referring to Fig. 1, this utility model provides a kind of technical scheme: the monitoring device of earth resistance in a kind of power system, including monitoring system, monitoring system includes embedded type CPU, and the input of embedded type CPU electrically connects with the outfan of input module.
The input of the outfan electrical connection comparing module of embedded type CPU, the input of comparing module also electrically connects with the outfan of A/D converter, the input of A/D converter is electrically connected with the outfan of signal acquisition module by traffic filter, and the input of signal acquisition module outfan with voltage transformer summation current transformer respectively electrically connects.
The outfan of comparing module is electrically connected with the input of embedded type CPU by feedback module, and the outfan of embedded type CPU electrically connects with the input of output module.
Embedded type CPU is also two-way with speech memory to be electrically connected, and the outfan of embedded type CPU is connected with the input of remote mobile terminal also by signal projector.
Input module includes that guidance panel, output module include siren and display, and siren is signal lamp and buzzer siren.
Before this utility model uses, qualified voltage range and electric current interval are sent to embedded type CPU by the guidance panel that in this power system, the monitoring device of earth resistance first passes through in input module, after embedded type CPU receives, again qualified voltage range and electric current interval are sent to comparing module as comparing basis, audio alert signal is sent to embedded type CPU by this system also by the guidance panel in input module, after embedded type CPU receives, then audio alert signal is stored to speech memory.
nullWhen this utility model uses，By voltage transformer in this system、Current transformer induced voltage、Current signal，Acquisition module gathers voltage signal and the current signal that voltage transformer summation current transformer is sensed，Send the signal to again in traffic filter，The electric current that traffic filter will gather、Voltage signal carries out the conditioning filtering operation of signal，Retransmit to A/D modular converter，The electric current that A/D converter will collect、The real data such as voltage carry out analog digital conversion，Comparing is carried out again with the comparison basis in comparing module，If comparison is defective，Then this system passes through feedback module、Embedded type CPU、The cooperation of siren in output module，Realize alert operation，Formula CPU that is simultaneously embedded in transfers audio alert information from speech memory，And by signal projector, audio alert signal is sent on the remote mobile terminal of related personnel，Complete the work of remote alarms，Whole system has the function finding fault in time，Also there is the function completing alert operation in time，Thus related personnel can be pointed out in time to keep in repair、The work such as protection，Failure propagation can be prevented.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a monitoring device for earth resistance in power system, including monitoring system, described monitoring system includes embedded type CPU, it is characterised in that: the input of described embedded type CPU electrically connects with the outfan of input module；
The input of the outfan electrical connection comparing module of described embedded type CPU, the input of described comparing module also electrically connects with the outfan of A/D converter, the input of described A/D converter is electrically connected with the outfan of signal acquisition module by traffic filter, and the input of described signal acquisition module outfan with voltage transformer summation current transformer respectively electrically connects；
The outfan of described comparing module is electrically connected with the input of embedded type CPU by feedback module, and the outfan of described embedded type CPU electrically connects with the input of output module；
Described embedded type CPU is also two-way with speech memory to be electrically connected, and the outfan of described embedded type CPU is connected with the input of remote mobile terminal also by signal projector.
The monitoring device of earth resistance in a kind of power system the most according to claim 1, it is characterised in that: described input module includes guidance panel.
The monitoring device of earth resistance in a kind of power system the most according to claim 1, it is characterised in that: described output module includes siren and display.
The monitoring device of earth resistance in a kind of power system the most according to claim 3, it is characterised in that: described siren is signal lamp and buzzer siren.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123839.9U CN205484568U (en) | 2016-02-17 | 2016-02-17 | Ground resistance's monitoring devices among electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123839.9U CN205484568U (en) | 2016-02-17 | 2016-02-17 | Ground resistance's monitoring devices among electric power system |
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| CN205484568U true CN205484568U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620123839.9U Expired - Fee Related CN205484568U (en) | 2016-02-17 | 2016-02-17 | Ground resistance's monitoring devices among electric power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172790A (en) * | 2022-01-18 | 2022-03-11 | 常州大全电气有限公司 | Electric control protection system based on optical fiber network |
-
2016
- 2016-02-17 CN CN201620123839.9U patent/CN205484568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172790A (en) * | 2022-01-18 | 2022-03-11 | 常州大全电气有限公司 | Electric control protection system based on optical fiber network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170621 Address after: Baiyun District of Guangzhou City, Guangdong province 510430 Shijing Street East Zhang Cun Ji Wei Xia Jie, No. 153 1 floor Patentee after: Guangzhou Muller Electric Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170621 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Lin Cheng Zhen Cheng Nan long new road Texun Power Equipment Co. Ltd. Longyan 364200 Fujian County of Shanghang Province Patentee before: Wang Mingcheng |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |