CN212646946U - Zinc oxide arrester leakage current recorder - Google Patents
Zinc oxide arrester leakage current recorder Download PDFInfo
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- CN212646946U CN212646946U CN202020804129.9U CN202020804129U CN212646946U CN 212646946 U CN212646946 U CN 212646946U CN 202020804129 U CN202020804129 U CN 202020804129U CN 212646946 U CN212646946 U CN 212646946U
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- leakage current
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- zinc oxide
- oxide arrester
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000006854 communication Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000007175 bidirectional communication Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a zinc oxide arrester leakage current recording device, which comprises a control module, an A/D acquisition module and a power module, wherein the control module is in two-way communication with the A/D acquisition module, and the A/D acquisition module comprises a recording module, a zero-crossing detection module and a pulse detection module; the pulse detection module is used for detecting pulse signals, the control module controls the zero-crossing detection module to start after the pulse detection module detects the pulse signals, the zero-crossing monitoring module is used for detecting the zero crossing point of leakage current to determine the starting point of the wave recording module, and when the zero-crossing detection module detects the zero crossing point, the control module starts the wave recording module to record waves. The utility model discloses can gather the leakage current wave form of zinc oxide arrester in real time, carry out the operational analysis with waveform data in real time, obtain leakage current to and each time harmonic current numerical value, the operation maintainer of being convenient for in time discovers the problem of arrester, makes corresponding rush-repair measure, maintains power transmission system's stability.
Description
Technical Field
The utility model relates to an arrester detects technical field, especially relates to a zinc oxide arrester leakage current recorder.
Background
With the rapid development of national economy, electric energy plays an increasingly important role in people's daily life. The electric energy must pass through the transmission process from generation to use, and the stability of the electric energy transmission is crucial to the whole power system. The stability and safety of the transmission line, which is an important component of the power transmission system, directly determine the reliability of power transmission. Due to the influence of lightning stroke and overvoltage, the power transmission line is easy to trip and have safety accidents, so that a lightning arrester is needed to be used, and a zinc oxide lightning arrester is a lightning conductor commonly used at present.
The system staff pay attention to the health condition of the zinc oxide arrester, the zinc oxide arrester which runs under the power frequency voltage can contain each harmonic wave in the whole power grid system, the harmonic wave data and the waveform data are mainly used for analyzing the operation of the arrester, if each harmonic wave of leakage current can not be accurately monitored, misjudgment can be easily made on the health condition of the arrester, data support can not be provided for lightning protection control and overvoltage protection in the future, however, an effective zinc oxide arrester leakage current wave recording device does not exist at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a zinc oxide arrester leakage current recorder to each harmonic of electric current is revealed in the monitoring.
A zinc oxide arrester leakage current wave recording device comprises a control module, an A/D acquisition module and a power module, wherein the control module is in two-way communication with the A/D acquisition module, and the power module is used for supplying power to the control module and the A/D acquisition module;
the A/D acquisition module comprises a wave recording module, a zero-crossing detection module and a pulse detection module;
the pulse detection module is used for detecting a pulse signal, the control module controls the zero-crossing detection module to start after the pulse detection module detects the pulse signal, the zero-crossing monitoring module is used for detecting a zero crossing point of leakage current so as to determine a starting point of the wave recording module, and when the zero-crossing detection module detects the zero crossing point, the control module starts the wave recording module to record waves.
According to the utility model provides a zinc oxide arrester leakage current recorder, can gather the leakage current wave form of zinc oxide arrester in real time, carry out the operational analysis with waveform data in real time, obtain leakage current, and each time harmonic current numerical value, thereby can feed the operation maintainer department with the result, the operation maintainer of being convenient for in time discovers the problem of arrester, make corresponding rush-repair measure, in time get rid of hidden danger, avoid the accident, maintain power transmission system's stability.
In addition, according to the utility model provides a zinc oxide arrester leakage current oscillograph device can also have following additional technical characterstic:
further, the oscillograph module adopts an RN8302 chip, the zero-crossing detection module adopts a GM1102 chip, the pulse detection module comprises a 6N137 optocoupler and a resistor, a VCC pin and a VO pin of the 6N137 optocoupler are respectively connected with two ends of the resistor, and the VO pin of the 6N137 optocoupler is connected to the control module.
Further, the control module adopts a DSPIC33EP512MC206 singlechip.
Furthermore, the zinc oxide arrester leakage current wave recording device also comprises a GPRS communication module, and the GPRS communication module is in two-way communication with the control module.
Further, the GPRS communication module adopts an EC20 module.
Furthermore, the zinc oxide arrester leakage current wave recording device also comprises a clock module, and the clock module is in two-way communication with the control module.
Further, the clock module adopts a DS3231 clock chip.
Further, the power module adopts a tps63020 power management chip.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a logic block diagram of a leakage current recorder for a zinc oxide arrester according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a pulse detection module.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a zinc oxide arrester leakage current wave recording device, including a control module 10, an ad acquisition module 20, a power module 30, a GPRS communication module 40, and a clock module 50, where the control module 10 is in bidirectional communication with the ad acquisition module 20, the GPRS communication module 40, and the clock module 50, and the power module 30 is used to supply power to other modules.
The a/D acquisition module 20 is configured to acquire an arrester leakage current, detect an arrester action, and acquire a waveform of the arrester leakage current, and specifically, the a/D acquisition module 20 includes a wave recording module 21, a zero-crossing detection module 22, and a pulse detection module 23.
The pulse detection module 23 is configured to detect a pulse signal, after the pulse detection module 23 detects the pulse signal, the control module 10 controls the zero-crossing detection module 22 to start, the zero-crossing monitoring module 22 is configured to detect a zero-crossing point of the leakage current to determine a starting point of the wave recording module 21, and when the zero-crossing detection module 22 detects the zero-crossing point, the control module 10 starts the wave recording module 21 to record waves.
Specifically, the wave recording module 21 adopts an RN8302 chip, and the zero-crossing detection module 22 adopts a GM1102 chip.
Please refer to fig. 2, the pulse detection module 23 includes a 6N137 optocoupler 231 and a resistor 232, a VCC pin and a VO pin of the 6N137 optocoupler 231 are respectively connected to two ends of the resistor 232, and the VO pin of the 6N137 optocoupler 231 is connected to the control module 10. In FIG. 2, P +, P-is the signal input and plus is the pulse signal.
In this embodiment, the control module 10 adopts a DSPIC33EP512MC206 single chip microcomputer. For the collected data, the control module 10 may perform FFT operation, thereby calculating fundamental current, third, fifth, seventh harmonic current, and the like.
The GPRS communication module 40 adopts an EC20 module, and the GPRS communication module 40 is used for communicating with a user terminal. The clock module 50 adopts a DS3231 clock chip. The power module 30 employs a tps63020 power management chip.
According to the zinc oxide arrester leakage current wave recording device that this embodiment provided, can gather the leakage current waveform of zinc oxide arrester in real time, carry out operation analysis with waveform data in real time, obtain leakage current, and each time harmonic current numerical value, thereby can feed the operation maintainer department with the result, the operation maintainer of being convenient for in time discovers the problem of arrester, make corresponding rush-repair measure, in time get rid of the hidden danger, avoid the accident, maintain power transmission system's stability.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The zinc oxide arrester leakage current wave recording device is characterized by comprising a control module, an A/D acquisition module and a power module, wherein the control module is in two-way communication with the A/D acquisition module, and the power module is used for supplying power to the control module and the A/D acquisition module;
the A/D acquisition module comprises a wave recording module, a zero-crossing detection module and a pulse detection module;
the pulse detection module is used for detecting a pulse signal, the control module controls the zero-crossing detection module to start after the pulse detection module detects the pulse signal, the zero-crossing monitoring module is used for detecting a zero crossing point of leakage current so as to determine a starting point of the wave recording module, and when the zero-crossing detection module detects the zero crossing point, the control module starts the wave recording module to record waves.
2. The zinc oxide arrester leakage current wave recording device according to claim 1, characterized in that the wave recording module adopts an RN8302 chip, the zero-crossing detection module adopts a GM1102 chip, the pulse detection module includes a 6N137 optocoupler and a resistor, a VCC pin and a VO pin of the 6N137 optocoupler are respectively connected with two ends of the resistor, and the VO pin of the 6N137 optocoupler is connected to the control module.
3. The zinc oxide arrester leakage current recording device of claim 1, wherein the control module adopts a DSPIC33EP512MC206 single chip microcomputer.
4. The zinc oxide arrester leakage current wave recording device according to claim 1, further comprising a GPRS communication module, wherein the GPRS communication module is in bidirectional communication with the control module.
5. The zinc oxide arrester leakage current recording device of claim 4, wherein the GPRS communication module adopts an EC20 module.
6. The zinc oxide arrester leakage current recording device according to claim 4, further comprising a clock module, wherein the clock module is in bidirectional communication with the control module.
7. The zinc oxide arrester leakage current wave recording device according to claim 6, characterized in that the clock module adopts a DS3231 clock chip.
8. The zinc oxide arrester leakage current recording device of claim 1, wherein the power module employs a tps63020 power management chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020804129.9U CN212646946U (en) | 2020-05-15 | 2020-05-15 | Zinc oxide arrester leakage current recorder |
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| CN202020804129.9U CN212646946U (en) | 2020-05-15 | 2020-05-15 | Zinc oxide arrester leakage current recorder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990657A (en) * | 2023-09-28 | 2023-11-03 | 永林电子股份有限公司 | Detection system for antistatic capability of LED lamp beads |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990657A (en) * | 2023-09-28 | 2023-11-03 | 永林电子股份有限公司 | Detection system for antistatic capability of LED lamp beads |
| CN116990657B (en) * | 2023-09-28 | 2023-12-19 | 永林电子股份有限公司 | Detection system for antistatic capability of LED lamp beads |
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