CN110031713A - A kind of arrester on-Line Monitor Device and method - Google Patents
A kind of arrester on-Line Monitor Device and method Download PDFInfo
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- CN110031713A CN110031713A CN201910398941.8A CN201910398941A CN110031713A CN 110031713 A CN110031713 A CN 110031713A CN 201910398941 A CN201910398941 A CN 201910398941A CN 110031713 A CN110031713 A CN 110031713A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 68
- 238000005070 sampling Methods 0.000 claims abstract description 57
- 238000012544 monitoring process Methods 0.000 claims abstract description 56
- 238000004146 energy storage Methods 0.000 claims abstract description 45
- 238000012806 monitoring device Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses a kind of arrester on-Line Monitor Device and methods, comprising: pressure limiting sampling unit, energy-storage units, leakage current sampling unit, over-voltage monitoring unit, core processing module and radio receiving transmitting module；The energy-storage units are when arrester works normally, the leakage current that the pressure limiting sampling unit inputs is collected and stored, it powers as the leakage current sampling unit, the over-voltage monitoring unit, the radio receiving transmitting module and the core processing module, it no longer needs external power supply and is laid with communication cable, save the cost, reduction power consumption under conditions of guaranteeing monitoring accuracy and precision, while communication function can be completed and do not limited by external condition；Secondly, the present invention further decreases the power consumption of lightning arrester monitoring device to improve aerial awakening mode by the polling cycle field of addition sender in lead code and address information, the channel information of insertion.
Description
Technical Field
The invention relates to the technical field of monitoring of power equipment, in particular to an online monitoring device and method for a lightning arrester.
Background
The lightning arrester is used for protecting electrical equipment from being damaged by high transient overvoltage during lightning stroke, limiting follow current time and normally limiting follow current amplitude. Lightning arresters are also known as overvoltage protectors, overvoltage limiters.
The lightning arrester on-line monitoring device includes two kinds of products of lightning arrester on-line monitor and discharge counter, also called lightning arrester monitoring sensor, and is an instrument matched with zinc oxide lightning arrester in high-voltage AC power system, said instrument is series-connected in the grounding circuit of lightning arrester. The lightning arrester is in a high resistance state under the normal system working voltage, and only microampere current passes through the lightning arrester. It exhibits low resistance under the action of overvoltage and high current, thereby limiting residual voltage at two ends of the arrester.
In the prior art, the monitoring of the lightning arrester of the power system mainly depends on the traditional discharge counter or an online monitor to perform online monitoring on the lightning arrester. Some of the lightning arrester monitoring devices adopt mechanical modes such as pointers or dial-up turntables to monitor leakage current and discharge times, so that the problems of poor reliability, low resolution, inaccurate reading and the like of online monitoring of the lightning arrester are caused; secondly, this kind of arrester monitoring device does not possess the communication function, also can not regard as the sensor part in the arrester monitoring system.
In addition, there is also an online monitoring system for an arrester in the prior art, which can communicate with a monitoring unit in a field bus manner and transmit monitoring data to a sender, but the monitoring device for the arrester needs an external power supply to supply power, and needs to lay a communication cable to communicate with the sender, which is relatively high in cost.
Therefore, it is necessary to develop an online monitoring device and method for lightning arrester to solve the above problems.
Disclosure of Invention
The invention aims to provide an arrester on-line monitoring device and method, and aims to solve the problems that the arrester on-line monitoring device in the prior art is poor in reliability and needs an external power supply and a communication cable.
In order to solve the above technical problem, the present invention provides an online monitoring device for a lightning arrester, comprising:
the device comprises a voltage limiting sampling unit, an energy storage unit, a leakage current sampling unit, an overvoltage monitoring unit, a core processing module and a wireless transceiving module;
the voltage limiting sampling unit is connected in series in a ground loop of the lightning arrester and is connected with the energy storage unit, the leakage current sampling unit and the overvoltage monitoring unit;
the energy storage unit is used for storing electric energy and releasing the electric energy to supply power for the leakage current sampling unit, the overvoltage monitoring unit, the core processing module and the wireless transceiving module;
the leakage current sampling unit is used for acquiring leakage current information of the lightning arrester and transmitting the leakage current information to the core processing module, and the core processing module can analyze and process the leakage current information and control the energy storage unit to release electric energy;
the overvoltage monitoring unit can monitor an overvoltage event in real time and transmit overvoltage event information to the core processing module, and the core processing module can count and store the overvoltage event;
the wireless transceiver module sends a received request message to the core processing module, the request message comprises a lead code, an inquiry period and a communication message, the lead code also comprises inserted address information and channel information, and the core processing module can judge whether to accept the complete request message and feed back the complete request message to the wireless transceiver module.
Further, in the online arrester monitoring device, the energy storage unit includes a rectifier module, a protection module, an energy storage element, and a voltage stabilizing module and a controlled voltage stabilizing module respectively connected to an output end of the energy storage element, wherein the rectifier module inputs the leakage current to charge, and the leakage current is supplied to the voltage stabilizing module and the controlled voltage stabilizing module.
Further, in the online arrester monitoring device, the core processing module controls the controlled voltage stabilization module to supply power to the leakage current sampling unit.
Further, in the online lightning arrester monitoring device, address information and channel information in the lead code are periodically distributed.
Further, in the arrester on-line monitoring apparatus, the overvoltage monitoring unit transmits overvoltage event information to the core processing module by generating and transmitting an interrupt signal at an overvoltage occurrence instant.
Further, in the arrester on-line monitoring device, the arrester on-line monitoring device further comprises a display module, an output end of the core processing module is connected with the display module, and the energy storage unit supplies power to the display module.
The invention also provides an online monitoring method of the lightning arrester, which adopts the online monitoring device of the lightning arrester and comprises the following steps:
s10: the energy storage unit stores the electric energy input by the voltage limiting sampling unit and releases the electric energy to supply power for the leakage current sampling unit, the overvoltage monitoring unit, the core processing module and the wireless transceiving module;
s11: the leakage current sampling unit acquires leakage current information of the lightning arrester from the voltage limiting sampling unit and sends the leakage current information to the core processing module to analyze and process the leakage current information;
s12: the overvoltage monitoring unit monitors an overvoltage event in real time from the voltage limiting sampling unit and sends the overvoltage event to the core processing module to count and store the overvoltage event;
s13: the wireless transceiver module sends a received request message to the core processing module, wherein the request message comprises a lead code, an inquiry period and a communication message, and the lead code also comprises inserted address information and channel information;
s14: the core processing module judges the address information and the channel information; if the address information and the channel information are not the address and the channel of the device, enabling the wireless transceiver module to enter a dormant state, wherein the dormant period is a normal air interface awakening period; if the address information and the channel information are the address and the channel of the device, receiving a complete request message, feeding back leakage current information and overvoltage times to the wireless transceiver module, and then entering a sleep state, wherein the sleep period is determined according to a query period field in the request message.
Further, in the online monitoring method for the lightning arrester, the energy storage unit stores the electric energy input from the voltage limiting sampling unit, sequentially passes through the rectification module, the protection module, the energy storage element, and the voltage stabilizing module and the controlled voltage stabilizing module which are respectively connected with the output end of the energy storage element, and releases the electric energy to supply power to the leakage current sampling unit, the overvoltage monitoring unit, the core processing module and the wireless transceiving module.
Further, in the online monitoring method for the lightning arrester, the core processing module controls the controlled voltage stabilization module to supply power to the leakage current sampling unit when performing leakage current analog-to-digital conversion, so as to obtain leakage current information of the lightning arrester.
Further, in the lightning arrester on-line monitoring method, leakage current information and overvoltage times are displayed in real time through a display module.
In the arrester monitoring device and the method provided by the invention, the voltage-limiting sampling unit is used for primarily sampling and limiting the leakage current in the arrester so as to protect the arrester monitoring device, and the energy storage unit is used for collecting and storing the leakage current input by the voltage-limiting sampling unit when the arrester normally works so as to supply power to the leakage current sampling unit, the overvoltage monitoring unit, the wireless transceiving module and the core processing module, so that an external power supply and a communication cable are not needed, the cost is saved, the power consumption is reduced under the condition of ensuring the monitoring accuracy and precision, and meanwhile, the communication function can be completed without being limited by external conditions; secondly, the invention improves the air wake-up mode and further reduces the power consumption of the lightning arrester monitoring device by adding the query period field of the sender, the inserted address information and the channel information into the preamble.
Drawings
Fig. 1 is a schematic view of an arrester on-line monitoring device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an energy storage unit according to an embodiment of the invention;
fig. 3 is a diagram illustrating a preamble setting according to an embodiment of the present invention;
fig. 4 is a schematic view of an online monitoring method for an arrester according to an embodiment of the invention;
wherein,
1-an energy storage unit; 10-a rectifying module; 11-a protection module; 12-an energy storage element; 13-a voltage stabilizing module; 14-a controlled voltage regulation module; 2-a leakage current sampling unit; 3-overvoltage monitoring unit; 4-core processing module; 5-a wireless transceiver module; 6-display module.
Detailed Description
To make the objects, advantages and features of the present invention more apparent, the online lightning arrester monitoring device and method according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It should be noted that: the drawings are in simplified form and are not to precise scale, the intention being solely for the convenience and clarity of illustrating embodiments of the invention; secondly, the structures shown in the drawings are often part of the actual structure; again, the drawings may require different emphasis, sometimes on different proportions.
Referring to fig. 1, the present invention provides an on-line monitoring device for an arrester, including: the device comprises a voltage limiting sampling unit 0, an energy storage unit 1, a leakage current sampling unit 2, an overvoltage monitoring unit 3, a core processing module 4 and a wireless transceiving module 5;
the voltage limiting sampling unit 0 is connected in series in a ground loop of the lightning arrester and is connected with the energy storage unit 1, the leakage current sampling unit 2 and the overvoltage monitoring unit 3.
The energy storage unit 1 is used for storing electric energy and releasing the electric energy to supply power for the leakage current sampling unit 2, the overvoltage monitoring unit 3, the core processing module 4 and the wireless transceiving module 5; preferably, the energy storage unit 1 includes a rectifying module 10, a protection module 11, an energy storage element 12, and a voltage stabilizing module 13 and a controlled voltage stabilizing module 14 respectively connected to the output end of the energy storage element 12, wherein a leakage current is input from the rectifying module 10 for charging, and is output to the voltage stabilizing module 13 and the controlled voltage stabilizing module 14 for supplying power, as shown in fig. 2.
The leakage current sampling unit 2 is used for acquiring leakage current information of the lightning arrester and transmitting the leakage current information to the core processing module 4, and the core processing module 4 can analyze and process the leakage current information and control the energy storage unit 1 to release electric energy.
The overvoltage monitoring unit 3 can monitor an overvoltage event in real time and transmit overvoltage event information to the core processing module 4, and the core processing module 4 can count and store the overvoltage event.
The wireless transceiver module 5 sends the received request message to the core processing module 4, where the request message includes a preamble, an inquiry period, and a communication message, and the preamble further includes inserted address information and channel information. If the core processing module 4 detects that the address and channel information in the lead code are not the address and channel of the device, the wireless transceiver module 5 is made to enter a sleep state in advance, and the sleep period is a normal air interface wake-up period; if the core processing module 4 detects that the address and channel information in the preamble is the address and channel of the device, it receives a complete request message, feeds back the leakage current information and the number of times of overvoltage to the wireless transceiver module 5, and then enters a sleep state, where the sleep period is determined according to the query period field in the request message.
Preferably, the core processing module 4 controls the controlled voltage stabilization module 14 to supply power to the leakage current sampling unit 2, and the core processing module 4 can control the energy storage unit 1 to supply power to the leakage current sampling unit 2 during analog-to-digital (a/D) conversion, so that the leakage current sampling unit 2 works during analog-to-digital conversion, and remains dormant in the rest of time, thereby reducing the power consumption of the online lightning arrester monitoring device.
Preferably, the overvoltage monitoring unit 3 transmits overvoltage event information to the core processing module 4 by generating and transmitting an interrupt signal at the moment of overvoltage occurrence. Specifically, the overvoltage monitoring unit 3 monitors an overvoltage event in real time, when the overvoltage event occurs, the overvoltage monitoring unit 3 interrupts a signal flowing to the core processing module 4, and the core processing module 4 records the number of times of interruption, that is, the number of times of overvoltage, and stores the number of times of overvoltage.
Preferably, the online arrester monitoring device further comprises a display module 6, the output end of the core processing module 4 is connected with the display module 6, and the energy storage unit 1 supplies power to the display module 6. The display module 6 can display the leakage current and the overvoltage frequency monitored by the lightning arrester online monitoring device in real time, so that data can be displayed quickly, efficiently and visually.
Therefore, when the lightning arrester normally works, the energy storage unit 1 collects and stores the leakage current flowing through the lightning arrester monitoring device, so that the leakage current is supplied to the leakage current sampling unit 2, the overvoltage monitoring unit 3, the wireless transceiver module 5 and the core processing module 4, an external power supply and a communication cable are not needed, the cost is saved and the power consumption is reduced under the condition of ensuring the monitoring accuracy and precision, and meanwhile, the communication function can be completed and the lightning arrester is not limited by external conditions.
Next, referring to fig. 3, the wireless transceiver module 5 sends a preamble and a communication message to the core processing module 4, where the preamble further includes an inquiry period field of a sender and inserted address information and channel information, and preferably, the address information and the channel information in the preamble are periodically distributed, and the core processing module 4 can send leakage current information and overvoltage times to the wireless transceiver module 5.
Therefore, the inquiry period field of the sender, the inserted address information and the inserted channel information are added into the preamble, so that the air awakening mode is improved, if the message is not sent to the device, a small amount of messages are only needed to be received, the message is not received when the message is not confirmed to be the device until the next awakening, meanwhile, if the message for inquiring the device is received, the device can enter the sleep mode according to the inquiry period in the message after the processing is finished, and the device enters the air awakening mode until the next inquiry period comes, so that the lightning arrester online monitoring device avoids the situation that the receiver receives all complete received messages in the traditional mode, and further reduces the power consumption of the lightning arrester monitoring device.
Referring to fig. 4, the present embodiment further provides an online monitoring method for an arrester, including:
s10: the energy storage unit 1 stores the electric energy input from the voltage limiting sampling unit 0 and releases the electric energy to supply power for the leakage current sampling unit 2, the overvoltage monitoring unit 3, the core processing module 4 and the wireless transceiving module 5;
s11: the leakage current sampling unit 2 acquires leakage current information of the lightning arrester from the voltage limiting sampling unit 0 and sends the leakage current information to the core processing module 4 to analyze and process the leakage current information;
s12: the overvoltage monitoring unit 3 monitors an overvoltage event in real time from the voltage limiting sampling unit 0 and sends the overvoltage event to the core processing module 4 to count and store the overvoltage event;
s13: the wireless transceiver module 5 sends the received request message to the core processing module 4, where the request message includes a preamble, an inquiry period, and a communication message, and the preamble further includes inserted address information and channel information;
s14: the core processing module 4 judges the address information and the channel information; if the core processing module 4 detects that the address and channel information in the lead code are not the address and channel of the device, the wireless transceiver module 5 is made to enter a sleep state in advance, and the sleep period is a normal air interface wake-up period; if the core processing module 4 detects that the address and channel information in the preamble is the address and channel of the device, it receives a complete request message, feeds back the leakage current information and the number of times of overvoltage to the wireless transceiver module 5, and then enters a sleep state, where the sleep period is determined according to the period field in the request message.
Preferably, the energy storage unit 1 stores the electric energy input from the voltage limiting sampling unit 0, sequentially passes through the rectification module 10, the protection module 11, the energy storage element 12, and the voltage stabilizing module 13 and the controlled voltage stabilizing module 14 respectively connected to the output end of the energy storage element 12, and releases the electric energy to supply power to the leakage current sampling unit 2, the overvoltage monitoring unit 3, the core processing module 4, and the wireless transceiving module 5.
Preferably, the core processing module 4 controls the controlled voltage regulation module 14 to supply power to the leakage current sampling unit 2 when performing leakage current analog-to-digital conversion, so as to obtain leakage current information of the lightning arrester.
Preferably, the online lightning arrester monitoring method further includes S15: and displaying the leakage current information and the overvoltage times in real time through the display module 6. Therefore, data can be displayed quickly and efficiently, the workload of operators is reduced, and the change of the data can be found clearly and visually.
In summary, the online monitoring device and method for the lightning arrester provided by the invention have the following advantages:
the energy storage unit is when the arrester normally works, and the leakage current who will flow through this arrester monitoring devices collects and stores to this is the power supply of this arrester monitoring devices, no longer needs external power source and lays communication cable, practices thrift cost, reduction consumption under the condition of guaranteeing monitoring accuracy and precision, can accomplish communication function simultaneously and do not receive the restriction of external condition.
Furthermore, by adding the query period field of the sender, the inserted address information and the channel information into the preamble, the air wake-up mode is improved, the situation that the receiver receives all complete received messages in the traditional mode is avoided, and the power consumption of the lightning arrester monitoring device is reduced.
Finally, it should be noted that the above description is only for describing the preferred embodiments of the present invention, and not for limiting the scope of the present invention, and that any changes and modifications made by those skilled in the art according to the above disclosure are all within the scope of the appended claims.
Claims (10)
1. An arrester on-line monitoring device, its characterized in that includes:
the device comprises a voltage limiting sampling unit (0), an energy storage unit (1), a leakage current sampling unit (2), an overvoltage monitoring unit (3), a core processing module (4) and a wireless transceiving module (5);
the voltage limiting sampling unit (0) is connected in series in a ground loop of the lightning arrester and is connected with the energy storage unit (1), the leakage current sampling unit (2) and the overvoltage monitoring unit (3);
the energy storage unit (1) is used for storing electric energy and releasing the electric energy to supply power to the leakage current sampling unit (2), the overvoltage monitoring unit (3), the core processing module (4) and the wireless transceiving module (5);
the leakage current sampling unit (2) is used for acquiring leakage current information of the lightning arrester and transmitting the leakage current information to the core processing module (4), and the core processing module (4) can analyze and process the leakage current information and control the energy storage unit (1) to release electric energy;
the overvoltage monitoring unit (3) can monitor an overvoltage event in real time and transmit overvoltage event information to the core processing module (4), and the core processing module (4) can count and store the overvoltage event;
the wireless transceiving module (5) sends the received request message to the core processing module (4), the request message comprises a lead code, a query period and a communication message, the lead code also comprises inserted address information and channel information, and the core processing module (4) can judge whether to accept the complete request message and feed back the complete request message to the wireless transceiving module (5).
2. An online arrester monitoring device according to claim 1, wherein the energy storage unit (1) comprises a rectifying module (10), a protection module (11), an energy storage element (12), and a voltage stabilizing module (13) and a controlled voltage stabilizing module (14) respectively connected to the output end of the energy storage element (12), which are connected in sequence, wherein leakage current is input from the rectifying module (10) for charging, and is output to the voltage stabilizing module (13) and the controlled voltage stabilizing module (14) for supplying power.
3. An arrester on-line monitoring device according to claim 2, characterized in that the core processing module (4) controls the controlled voltage regulation module (14) to supply the leakage current sampling unit (2) with power.
4. The online arrester monitoring device as claimed in claim 1, wherein the address information and the channel information in the preamble code are periodically distributed.
5. An on-line arrester monitoring device according to claim 1, characterized in that the overvoltage monitoring unit (3) transmits overvoltage event information to the core processing module (4) by generating and transmitting an interrupt signal at the moment of overvoltage occurrence.
6. An arrester on-line monitoring device according to claim 1, characterized in that the arrester on-line monitoring device further comprises a display module (6), the output end of the core processing module (4) is connected with the display module (6), and the energy storage unit (1) supplies power to the display module (6).
7. An on-line monitoring method for an arrester, which adopts the on-line monitoring device for an arrester according to any one of claims 1 to 6, characterized by comprising:
s10: the energy storage unit (1) stores the electric energy input from the voltage limiting sampling unit (0) and releases the electric energy to supply power for the leakage current sampling unit (2), the overvoltage monitoring unit (3), the core processing module (4) and the wireless transceiving module (5);
s11: the leakage current sampling unit (2) acquires leakage current information of the lightning arrester from the voltage limiting sampling unit (0) and sends the leakage current information to the core processing module (4) to analyze and process the leakage current information;
s12: the overvoltage monitoring unit (3) monitors an overvoltage event in real time from the voltage limiting sampling unit (0) and sends the overvoltage event to the core processing module (4) to count and store the overvoltage event;
s13: the wireless transceiving module (5) sends a received request message to the core processing module (4), wherein the request message comprises a lead code, a query period and a communication message, and the lead code also comprises inserted address information and channel information;
s14: the core processing module (4) judges the address information and the channel information; if the address information and the channel information are not the address and the channel of the device, the wireless transceiver module (5) enters a dormant state, and the dormant period is a normal air interface awakening period; if the address information and the channel information are the address and the channel of the device, receiving a complete request message, feeding back leakage current information and overvoltage times to the wireless transceiver module (5), and then entering a sleep state, wherein the sleep period is determined according to a query period field in the request message.
8. The online monitoring method for the lightning arrester according to claim 7, characterized in that the energy storage unit (1) stores the electric energy input from the voltage limiting sampling unit (0), sequentially passes through the rectifying module (10), the protection module (11), the energy storage element (12), and the voltage stabilizing module (13) and the controlled voltage stabilizing module (14) respectively connected to the output end of the energy storage element (12), and releases the electric energy to supply power to the leakage current sampling unit (2), the overvoltage monitoring unit (3), the core processing module (4) and the wireless transceiving module (5).
9. An on-line monitoring method for an arrester according to claim 7, characterized in that the core processing module (4) controls the controlled voltage stabilizing module (14) to supply power to the leakage current sampling unit (2) when performing leakage current analog-to-digital conversion so as to obtain leakage current information of the arrester.
10. An on-line arrester monitoring method as claimed in claim 7, characterized in that the leakage current information and the overvoltage times are displayed in real time by the display module (6).
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| CN110649561A (en) * | 2019-08-16 | 2020-01-03 | 西安交通大学 | Self-power-taking device utilizing leakage current of lightning arrester valve plate and working method thereof |
| CN112595994A (en) * | 2020-12-31 | 2021-04-02 | 南京世都科技有限公司 | Lightning arrester leakage current measuring device |
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| CN101178838A (en) * | 2006-11-07 | 2008-05-14 | 西安神电电器有限公司 | Lightning arrestor on-line monitoring methods thereof system |
| CN102084698A (en) * | 2008-07-16 | 2011-06-01 | 高通股份有限公司 | Network server having an information and scheduling controller to support one or more low duty cycle wireless devices |
| CN102474817A (en) * | 2009-07-12 | 2012-05-23 | Lg电子株式会社 | Updating method and apparatus of sleep mode operation |
| CN202057713U (en) * | 2011-05-18 | 2011-11-30 | 石家庄博发科技有限公司 | Online monitoring device for wireless lightning arrester |
| CN203414520U (en) * | 2013-08-30 | 2014-01-29 | 中国西电电气股份有限公司 | Power transmission line arrester leakage current on-line monitoring system |
| CN105510779A (en) * | 2015-12-01 | 2016-04-20 | 国网四川省电力公司资阳供电公司 | Arrester on-line monitoring system and application method thereof |
| CN105792305A (en) * | 2016-02-24 | 2016-07-20 | 长春思拓电子科技有限责任公司 | Method for designing ultralow-power wireless data transmission network |
| CN109548120A (en) * | 2017-09-22 | 2019-03-29 | 珠海市魅族科技有限公司 | Communication means, device, site apparatus and the access point apparatus of WLAN |
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| CN110649561A (en) * | 2019-08-16 | 2020-01-03 | 西安交通大学 | Self-power-taking device utilizing leakage current of lightning arrester valve plate and working method thereof |
| CN112595994A (en) * | 2020-12-31 | 2021-04-02 | 南京世都科技有限公司 | Lightning arrester leakage current measuring device |
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