CN210222143U - High-voltage lightning arrester monitoring device - Google Patents
High-voltage lightning arrester monitoring device Download PDFInfo
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- CN210222143U CN210222143U CN201920608294.4U CN201920608294U CN210222143U CN 210222143 U CN210222143 U CN 210222143U CN 201920608294 U CN201920608294 U CN 201920608294U CN 210222143 U CN210222143 U CN 210222143U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000003321 amplification Effects 0.000 claims description 12
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 12
- 230000001629 suppression Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 208000025274 Lightning injury Diseases 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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Abstract
The utility model relates to a high-voltage arrester monitoring devices, it includes: the device comprises a processor, a current transformer and a current detection module; one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module; the processor is electrically connected with the current detection module; the processor is suitable for receiving the full current and the lightning current detected by the current detection module. When the high-voltage arrester is in no lightning stroke, leakage current of dozens of microamperes to hundreds of microamperes exists between 50KV and the ground, and the high-voltage arrester is monitored by detecting the leakage current and judging whether the leakage current is normal or not.
Description
Technical Field
The utility model relates to an arrester monitoring field, concretely relates to high-voltage arrester on-line measuring device.
Background
The high-voltage lightning arrester is an indispensable thing in people's life, plays the effect of guide electric current when producing the thunderbolt, prevents the thunderbolt, and the high-voltage lightning arrester is good or bad in performance, is leading people's life safety.
Therefore, it is important to ensure that the high voltage arrester is not damaged when it is in use.
How to monitor the quality of the high-voltage arrester is an urgent solution at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-voltage lightning arrester monitoring devices to through detecting its leakage current, monitor the high-voltage lightning arrester through judging whether normal of leakage current comes.
In order to solve the technical problem, the utility model provides a high-voltage lightning arrester monitoring device, include:
the device comprises a processor, a current transformer and a current detection module;
one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module;
the processor is electrically connected with the current detection module;
the processor is suitable for receiving the full current and the lightning current detected by the current detection module.
Furthermore, the current detection module comprises an acquisition circuit, a wake-up circuit and an amplification circuit;
the acquisition circuit is electrically connected with the wake-up circuit and the amplification circuit respectively;
the processor is electrically connected with the wake-up circuit and the amplifying circuit respectively;
the acquisition circuit is suitable for acquiring full current, sending the full current to the amplification circuit and then transmitting the full current to the processor;
the acquisition circuit is also suitable for sending a lightning current detection signal to the processor through the wake-up circuit when the lightning current is detected;
the processor is suitable for collecting lightning current through the collecting circuit when receiving the lightning current detection signal.
Further, the acquisition circuit comprises a rectifier chip, a voltage division resistor R2 and a voltage division resistor R14;
the first output end of the current transformer is electrically connected with the second output end sequentially through an inductor L2, a resistor R10 and a transient suppression diode D6 after being connected in parallel.
The input end of the rectifying chip is respectively and electrically connected to two ends of the resistor R10 and is suitable for rectifying alternating current input by the current transformer into direct current;
the forward output end of the rectifying chip is grounded through a collecting resistor R4, a voltage dividing resistor R15 and a voltage dividing resistor R5;
the full current acquisition end of the processor is electrically connected between the R4 and the positive output end of the rectification chip;
the lightning current acquisition end of the processor is electrically connected between the voltage dividing resistor R15 and the voltage dividing resistor R5;
the forward output end of the rectifying chip is grounded through a voltage dividing resistor R2 and a voltage dividing resistor R14 in sequence; the wake-up circuit is electrically connected between the voltage dividing resistor R2 and the voltage dividing resistor R14;
when the input end of the rectifier chip outputs lightning current, the wake-up circuit collects high level work and collects the lightning current through the processor.
Further, the wake-up circuit comprises a switching tube Q1 and an optical coupling chip;
one end of the input side of the optical coupler chip is pulled high through a pull-up resistor R1, and the other end of the input side of the optical coupler is grounded through the first stage and the third stage of a switch tube Q1;
one end of the output side of the optical coupler chip is pulled high through a pull-up resistor R3, and the other end of the output side of the optical coupler is grounded;
the receiving end of the processor is electrically connected between the pull-up resistor R3 and the optocoupler chip;
the first stage of switch tube with acquisition circuit electric connection, and be suitable for and switch on receiving acquisition circuit's lightning current detection signal, the opto-coupler chip switches on this moment, and the treater receives the low level, promptly, receives lightning current and gathers the signal.
Further, the amplifying circuit comprises a primary amplifier and a secondary amplifier;
the full current of the acquisition circuit sequentially passes through the primary amplifier and the secondary amplifier;
and the full current acquisition end of the processor is respectively and electrically connected with the primary amplifier and the secondary amplifier.
The utility model also provides a high-voltage lightning arrester monitoring method, high-voltage lightning arrester monitoring method detects after passing through current transformer with high-voltage lightning arrester's current output to ensure high-voltage lightning arrester's safety.
Further, the high-voltage arrester monitoring method is executed by the high-voltage arrester monitoring device.
The beneficial effects of the utility model are that, the utility model provides a high-pressure arrester monitoring devices, wherein, high-pressure arrester monitoring devices includes: the device comprises a processor, a current transformer and a current detection module; one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module; the processor is electrically connected with the current detection module; the processor is suitable for receiving the full current and the lightning current detected by the current detection module. When the high-voltage arrester is in no lightning stroke, leakage current of dozens of microamperes to hundreds of microamperes exists between 50KV and the ground, and the high-voltage arrester is monitored by detecting the leakage current and judging whether the leakage current is normal or not.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic block diagram of a high-voltage lightning arrester monitoring device provided by the present invention.
Fig. 2 is a circuit diagram of the acquisition circuit provided by the present invention.
Fig. 3 is a circuit diagram of the wake-up circuit provided by the present invention.
Fig. 4 is a circuit diagram of an amplifying circuit provided by the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
Referring to fig. 1 to 4, embodiment 1 provides a high voltage arrester monitoring device, including: the device comprises a processor, a current transformer and a current detection module; one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module; the processor is electrically connected with the current detection module; the processor is suitable for receiving the full current and the lightning current detected by the current detection module. When the high-voltage arrester is in no lightning stroke, leakage current of dozens of microamperes to hundreds of microamperes exists between 50KV and the ground, and the high-voltage arrester is monitored by detecting the leakage current and judging whether the leakage current is normal or not.
In this embodiment, the current detection module includes an acquisition circuit, a wake-up circuit, and an amplification circuit; the acquisition circuit is electrically connected with the wake-up circuit and the amplification circuit respectively; the processor is electrically connected with the wake-up circuit and the amplifying circuit respectively; the acquisition circuit is suitable for acquiring full current, sending the full current to the amplification circuit and then transmitting the full current to the processor; the acquisition circuit is also suitable for sending a lightning current detection signal to the processor through the wake-up circuit when the lightning current is detected; the processor is suitable for collecting lightning current through the collecting circuit when receiving the lightning current detection signal.
The acquisition circuit comprises a rectifying chip, a voltage division resistor R2 and a voltage division resistor R14; the first output end of the current transformer is electrically connected with the second output end sequentially through an inductor L2, a resistor R10 and a transient suppression diode D6 after being connected in parallel; the input end of the rectifying chip is respectively and electrically connected to two ends of the resistor R10 and is suitable for rectifying alternating current input by the current transformer into direct current; the forward output end of the rectifying chip is grounded through a collecting resistor R4, a voltage dividing resistor R15 and a voltage dividing resistor R5; the full current acquisition end of the processor is electrically connected between the R4 and the positive output end of the rectification chip; the lightning current acquisition end of the processor is electrically connected between the voltage dividing resistor R15 and the voltage dividing resistor R5; the forward output end of the rectifying chip is grounded through a voltage dividing resistor R2 and a voltage dividing resistor R14 in sequence; the wake-up circuit is electrically connected between the voltage dividing resistor R2 and the voltage dividing resistor R14; when the input end of the rectifier chip outputs lightning current, the wake-up circuit collects high level work and collects the lightning current through the processor. The voltage division is carried out through the voltage division resistor R2 and the voltage division resistor R14, when the lightning current is generated, a high level is generated between the lightning current and the voltage division resistor R2, and therefore a lightning current acquisition signal is sent out.
In this embodiment, the wake-up circuit includes a switching tube Q1 and an optocoupler chip; one end of the input side of the optical coupler chip is pulled high through a pull-up resistor R1, and the other end of the input side of the optical coupler is grounded through the first stage and the third stage of a switch tube Q1; one end of the output side of the optical coupler chip is pulled high through a pull-up resistor R3, and the other end of the output side of the optical coupler is grounded; the receiving end of the processor is electrically connected between the pull-up resistor R3 and the optocoupler chip; the first stage of switch tube with acquisition circuit electric connection, and be suitable for and switch on receiving acquisition circuit's lightning current detection signal, the opto-coupler chip switches on this moment, and the treater receives the low level, promptly, receives lightning current and gathers the signal. Switch tube Q1 is controlled to the high level that produces at divider resistance R2 and divider resistance R14 through the production, and Q1 is NPN type triode, and the way leads to during the high level to during Q1 says and leads to, and then drives the opto-coupler chip and switches on, thereby draw down the CPU outside interrupt pin of treater, trigger the thunder current and gather the signal.
In this embodiment, the amplifying circuit includes a primary amplifier and a secondary amplifier; the full current of the acquisition circuit sequentially passes through the primary amplifier and the secondary amplifier; and the full current acquisition end of the processor is respectively and electrically connected with the primary amplifier and the secondary amplifier. And detecting the full current through two-stage amplification, wherein when the full current is a small current, the lightning current after the two-stage amplification is taken as a reference, and when the full current is a large current, the lightning current after the one-stage amplification is taken as a reference. Thereby improving the acquisition accuracy.
To sum up, the utility model provides a high-voltage arrester monitoring devices, wherein, high-voltage arrester monitoring devices includes: the device comprises a processor, a current transformer and a current detection module; one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module; the processor is electrically connected with the current detection module; the processor is suitable for receiving the full current and the lightning current detected by the current detection module. When the high-voltage arrester is in no lightning stroke, leakage current of dozens of microamperes to hundreds of microamperes exists between 50KV and the ground, and the high-voltage arrester is monitored by detecting the leakage current and judging whether the leakage current is normal or not.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A high voltage arrester monitoring device, comprising:
the device comprises a processor, a current transformer and a current detection module;
one end of the current transformer is connected into the high-voltage arrester in series, and the other end of the current transformer is electrically connected with the current detection module;
the processor is electrically connected with the current detection module;
the processor is suitable for receiving the full current and the lightning current detected by the current detection module.
2. A high voltage arrester monitoring device as claimed in claim 1,
the current detection module comprises an acquisition circuit, a wake-up circuit and an amplification circuit;
the acquisition circuit is electrically connected with the wake-up circuit and the amplification circuit respectively;
the processor is electrically connected with the wake-up circuit and the amplifying circuit respectively;
the acquisition circuit is suitable for acquiring full current, sending the full current to the amplification circuit and then transmitting the full current to the processor;
the acquisition circuit is also suitable for sending a lightning current detection signal to the processor through the wake-up circuit when the lightning current is detected;
the processor is suitable for collecting lightning current through the collecting circuit when receiving the lightning current detection signal.
3. A high voltage arrester monitoring device as claimed in claim 2,
the acquisition circuit comprises a rectifier chip, a voltage division resistor R2 and a voltage division resistor R14;
the first output end of the current transformer is electrically connected with the second output end sequentially through an inductor L2, a resistor R10 and a transient suppression diode D6 after being connected in parallel;
the input end of the rectifying chip is respectively and electrically connected to two ends of the resistor R10 and is suitable for rectifying alternating current input by the current transformer into direct current;
the forward output end of the rectifying chip is grounded through a collecting resistor R4, a voltage dividing resistor R15 and a voltage dividing resistor R5;
the full current acquisition end of the processor is electrically connected between the R4 and the positive output end of the rectification chip;
the lightning current acquisition end of the processor is electrically connected between the voltage dividing resistor R15 and the voltage dividing resistor R5;
the forward output end of the rectifying chip is grounded through a voltage dividing resistor R2 and a voltage dividing resistor R14 in sequence; the wake-up circuit is electrically connected between the voltage dividing resistor R2 and the voltage dividing resistor R14;
when the input end of the rectifier chip outputs lightning current, the wake-up circuit collects high level work and collects the lightning current through the processor.
4. A high voltage arrester monitoring device as claimed in claim 2,
the wake-up circuit comprises a switching tube Q1 and an optocoupler chip;
one end of the input side of the optical coupler chip is pulled high through a pull-up resistor R1, and the other end of the input side of the optical coupler is grounded through the first stage and the third stage of a switch tube Q1;
one end of the output side of the optical coupler chip is pulled high through a pull-up resistor R3, and the other end of the output side of the optical coupler is grounded;
the receiving end of the processor is electrically connected between the pull-up resistor R3 and the optocoupler chip;
the first stage of switch tube with acquisition circuit electric connection, and be suitable for and switch on receiving acquisition circuit's lightning current detection signal, the opto-coupler chip switches on this moment, and the treater receives the low level, promptly, receives lightning current and gathers the signal.
5. A high voltage arrester monitoring device as claimed in claim 2,
the amplifying circuit comprises a primary amplifier and a secondary amplifier;
the full current of the acquisition circuit sequentially passes through the primary amplifier and the secondary amplifier;
and the full current acquisition end of the processor is respectively and electrically connected with the primary amplifier and the secondary amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608294.4U CN210222143U (en) | 2019-04-29 | 2019-04-29 | High-voltage lightning arrester monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608294.4U CN210222143U (en) | 2019-04-29 | 2019-04-29 | High-voltage lightning arrester monitoring device |
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| CN210222143U true CN210222143U (en) | 2020-03-31 |
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| CN201920608294.4U Active CN210222143U (en) | 2019-04-29 | 2019-04-29 | High-voltage lightning arrester monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018375A (en) * | 2019-04-29 | 2019-07-16 | 常州轻工职业技术学院 | High-voltage arrester monitoring device and method |
| CN111650459A (en) * | 2020-06-11 | 2020-09-11 | 常州工业职业技术学院 | Wireless passive online monitor with gap lightning arrester |
| CN115494332A (en) * | 2022-10-09 | 2022-12-20 | 国网四川省电力公司电力科学研究院 | Device, method, equipment and medium for monitoring running state of arrester with gap |
-
2019
- 2019-04-29 CN CN201920608294.4U patent/CN210222143U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018375A (en) * | 2019-04-29 | 2019-07-16 | 常州轻工职业技术学院 | High-voltage arrester monitoring device and method |
| CN111650459A (en) * | 2020-06-11 | 2020-09-11 | 常州工业职业技术学院 | Wireless passive online monitor with gap lightning arrester |
| CN115494332A (en) * | 2022-10-09 | 2022-12-20 | 国网四川省电力公司电力科学研究院 | Device, method, equipment and medium for monitoring running state of arrester with gap |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240530 Address after: No. 235, Village Front Street, Huangli Town, Wujin District, Changzhou City, Jiangsu Province, 213151 Patentee after: Changzhou Lide Fuan Electric Co.,Ltd. Country or region after: China Address before: Changzhou Light Industry Polytechnic, No.28 Mingxin Middle Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee before: Changzhou Polytechnic Country or region before: China |
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| TR01 | Transfer of patent right |