CN207689592U - A kind of lightning arrester monitor with impact current for measuring - Google Patents
A kind of lightning arrester monitor with impact current for measuring Download PDFInfo
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- CN207689592U CN207689592U CN201721821742.6U CN201721821742U CN207689592U CN 207689592 U CN207689592 U CN 207689592U CN 201721821742 U CN201721821742 U CN 201721821742U CN 207689592 U CN207689592 U CN 207689592U
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Abstract
The utility model discloses a kind of lightning arrester monitors with impact current for measuring, including peak detection circuit, data sampling circuit, microprocessor, sample circuit, counting circuit, flow measurement circuit, Rogowski coil circuit and data interface circuit, wherein, Rogowski coil circuit is connected with the input terminal of the input terminal of peak detection circuit and sample circuit, the output end of peak detection circuit is connected with the input terminal on data sampling road, the output end of sample circuit is connected with counting circuit and flow measurement circuit, the output end and the output end of flow measurement circuit and the input terminal of data sampling circuit of counting circuit are connected, the output end of data sampling circuit is connected with microprocessor, the output end of microprocessor is connected with the input terminal on data-interface road；Rogowski coil circuit is serially connected in the high tension loop of arrester, dash current peak value when which can monitor leakage current values, action frequency and the lightning arrestor movement of arrester in real time.
Description
Technical field
The utility model belongs to arrester scene operational monitoring field, is related to a kind of arrester prison with impact current for measuring
Survey device.
Background technology
Metal oxide arrester is widely used in the power system because of its superior protective value.With technology
Development, it is desirable that realize that MOAs all to substation carry out the leakage current values of electrification on-line real time monitoring arrester, action time
Number, while field data is uploaded to host computer, meet the service requirement of Intelligent transformer station.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of with impact current for measuring
When lightning arrester monitor, the monitor can monitor leakage current values, action frequency and the lightning arrestor movement of arrester in real time
Dash current peak value.
In order to achieve the above objectives, the lightning arrester monitor described in the utility model with impact current for measuring includes peak value inspection
Slowdown monitoring circuit, data sampling circuit, microprocessor, sample circuit, counting circuit, flow measurement circuit, Rogowski coil circuit and host computer,
Wherein, Rogowski coil circuit is connected with the input terminal of the input terminal of peak detection circuit and sample circuit, peak detection circuit
Output end is connected with data sampling circuit, and the output end of sample circuit is connected with counting circuit and flow measurement circuit, counts electricity
The output end and the output end of flow measurement circuit and the input terminal of data sampling circuit on road are connected by photoelectric isolating circuit, data
The output end of sample circuit is connected with microprocessor, and the output end of microprocessor is connected with host computer；Rogowski coil circuit
It is serially connected in the high tension loop of arrester.
The rectified circuit of output end and filter circuit of sample circuit are connected with counting circuit and flow measurement circuit.
The output end of counting circuit and the output end of flow measurement circuit pass through photoelectric isolating circuit and data sampling circuit
Input terminal is connected.
It further include the memory being connected with microprocessor.
Microprocessor is connected by data interface circuit with host computer.
Rogowski coil circuit is serially connected with high tension loop, for be isolated with high tension loop, while by peak detection circuit and
Data sampling circuit connects.
It further include the protection circuit for being protected to flow measurement circuit and photoelectric isolating circuit.
The utility model has the advantages that：
Lightning arrester monitor described in the utility model with impact current for measuring passes through Rogowski coil when specific operation
Circuit obtains the dash current of arrester, and the peak value of arrester dash current is detected by peak detection circuit, by counting electricity
Then the action frequency of road record arrester passes through host computer by the current value of flow measurement circuit measuring leakage current of an arrester
It is shown, to realize the real-time monitoring to the peak value of the leakage current values of arrester, action frequency and dash current, operation letter
Singly, conveniently, practicability is extremely strong.
Description of the drawings
Fig. 1 is the principles of the present invention figure.
Wherein, 1 it is sample circuit, 2 be rectification circuit, 3 be filter circuit, 4 be counting circuit, 5 be protection circuit, 6 is
Flow measurement circuit, 7 be photoelectric isolating circuit, 8 be Rogowski coil circuit, 9 be peak detection circuit, 10 be data sampling circuit, 11
It is data interface circuit for microprocessor, 12,13 is memory.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the lightning arrester monitor described in the utility model with impact current for measuring includes peak detection circuit
9, data sampling circuit 10, microprocessor 11, sample circuit 1, counting circuit 4, flow measurement circuit 6, Rogowski coil circuit 8 and upper
Machine, wherein Rogowski coil circuit 8 is connected with the input terminal of the input terminal of peak detection circuit 9 and sample circuit 1, peak detection
The output end of circuit 9 is connected with the input terminal of data sampling circuit 10, output end and counting circuit 4 and the survey of sample circuit 1
Current circuit 6 is connected, the input terminal phase of the output end of counting circuit 4 and the output end of flow measurement circuit 6 and data sampling circuit 10
Connection, the output end of data sampling circuit 10 are connected with microprocessor 11, and the output end of microprocessor 11 is connected with host computer
It connects；Rogowski coil circuit 8 is serially connected in the high tension loop of arrester.
The rectified circuit 2 of output end and filter circuit 3 of sample circuit 1 are connected with counting circuit 4 and flow measurement circuit 6；
The output end of counting circuit 4 and the output end of flow measurement circuit 6 pass through the input of photoelectric isolating circuit 7 and data sampling circuit 10
End is connected.
The utility model further includes the memory 13 being connected with microprocessor 11；Microprocessor 11 passes through data-interface electricity
Road 12 is connected with host computer；The utility model further includes the guarantor for being protected to flow measurement circuit 6 and photoelectric isolating circuit 7
Protection circuit 5.
The specific work process of the utility model is：
Rogowski coil circuit 8 is serially connected in the high tension loop of arrester, Rogowski coil circuit 8 obtains the impact of arrester
Electric current, peak detection circuit 9 detects the peak value of the dash current of arrester, then by the peak value of the arrester dash current of detection
It is sent in microprocessor 11 through data sampling circuit 10, the peak value of this arrester dash current is uploaded to by microprocessor 11
In host computer, while being stored by memory 13；The leakage current for the arrester that sample circuit 1 acquires, it is described to keep away
Rectified 2 rectification of circuit of leakage current of thunder device and filter circuit 3 enter after filtering in counting circuit 4 and flow measurement circuit 6, lead to
The number that counting circuit 4 counts lightning arrestor movement is crossed, the current value of leakage current of an arrester is detected by flow measurement circuit 6；It is lightning-arrest
The current value of device action frequency and leakage current enters microprocessor 11 through photoelectric isolating circuit 7 and data sampling circuit 10
In；Microprocessor 11 stores the dash current peak when number and lightning arrestor movement of lightning arrestor movement counting by memory 13
Value, while the peak value of lightning arrestor movement number, leakage current of an arrester value and dash current being uploaded in host computer, host computer
Dash current peak value when showing lightning arrestor movement number, leakage current of an arrester value, while showing lightning arrestor movement.
Claims (5)
1. a kind of lightning arrester monitor with impact current for measuring, which is characterized in that adopted including peak detection circuit (9), data
Sample circuit (10), microprocessor (11), sample circuit (1), counting circuit (4), flow measurement circuit (6), Rogowski coil circuit (8) and
Host computer, wherein Rogowski coil circuit (8) and the input terminal of peak detection circuit (9) and the input terminal string of sample circuit (1)
Connection, the output end of peak detection circuit (9) are connected with the input terminal of data sampling circuit (10), the output of sample circuit (1)
End is connected with counting circuit (4) and flow measurement circuit (6), the output end of counting circuit (4) and the output end of flow measurement circuit (6) and
The input terminal of data sampling circuit (10) is connected, and the output end of data sampling circuit (10) is connected with microprocessor (11),
The output end of microprocessor (11) is connected by data interface circuit (12) with host computer；Rogowski coil circuit (8) is serially connected with
In the high tension loop of arrester.
2. the lightning arrester monitor according to claim 1 with impact current for measuring, which is characterized in that sample circuit (1)
The rectified circuit of output end (2) and filter circuit (3) be connected with counting circuit (4) and flow measurement circuit (6).
3. the lightning arrester monitor according to claim 1 with impact current for measuring, which is characterized in that counting circuit (4)
Output end and the output end of flow measurement circuit (6) pass through the input terminal of photoelectric isolating circuit (7) and data sampling circuit (10)
It is connected.
4. the lightning arrester monitor according to claim 1 with impact current for measuring, which is characterized in that further include and micro- place
The memory (13) that reason device (11) is connected.
5. the lightning arrester monitor according to claim 1 with impact current for measuring, which is characterized in that further include for pair
The protection circuit (5) that photoelectric isolating circuit (7) and flow measurement circuit (6) are protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721821742.6U CN207689592U (en) | 2017-12-23 | 2017-12-23 | A kind of lightning arrester monitor with impact current for measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721821742.6U CN207689592U (en) | 2017-12-23 | 2017-12-23 | A kind of lightning arrester monitor with impact current for measuring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689592U true CN207689592U (en) | 2018-08-03 |
Family
ID=62995213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721821742.6U Active CN207689592U (en) | 2017-12-23 | 2017-12-23 | A kind of lightning arrester monitor with impact current for measuring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230042A (en) * | 2020-12-11 | 2021-01-15 | 南京汇宁桀信息科技有限公司 | Impulse current detection circuit |
| CN113281605A (en) * | 2021-07-19 | 2021-08-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
-
2017
- 2017-12-23 CN CN201721821742.6U patent/CN207689592U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230042A (en) * | 2020-12-11 | 2021-01-15 | 南京汇宁桀信息科技有限公司 | Impulse current detection circuit |
| CN113281605A (en) * | 2021-07-19 | 2021-08-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
| CN113281605B (en) * | 2021-07-19 | 2021-10-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
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