CN213957578U - Lightning arrester on-line monitoring appearance of modular design - Google Patents
Lightning arrester on-line monitoring appearance of modular design Download PDFInfo
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- CN213957578U CN213957578U CN202021981520.2U CN202021981520U CN213957578U CN 213957578 U CN213957578 U CN 213957578U CN 202021981520 U CN202021981520 U CN 202021981520U CN 213957578 U CN213957578 U CN 213957578U
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Abstract
The utility model provides an arrester on-line monitor with modular design, which comprises a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of the arrester; the circuit unit comprises a basic module and a liquid crystal display module, the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to the server or the receiving device, and the output end of a processor of the basic module is connected with at least one socket; the liquid crystal display module and the basic module are arranged in parallel, the input end of the display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into a socket, so that the liquid crystal display module and the basic module are fixedly plugged, and the processor is electrically connected with the display screen. The utility model discloses a modular design falls into four at least modules, can increase wireless module, wired module, ethernet module or liquid crystal display module etc. according to the customer's demand on basic module, both made things convenient for the customer to use, the later stage modularization of being convenient for again is maintained.
Description
Technical Field
The utility model relates to an arrester detection area especially relates to an arrester on-line monitoring appearance of modular design.
Background
When lightning flashover occurs, besides direct lightning overvoltage can be generated, induced overvoltage can also occur in a power transmission line, and the two kinds of overvoltage can cause damage to the power transmission line and power equipment.
The lightning arrester is a well-grounded conductive device, can be used for protecting objects from lightning stroke, and mainly comprises a lightning arrester, a grounding device and a down conductor connected with the lightning arrester and the grounding device. According to the form of lightning-inducing device, the lightning-protection installation quantity can be divided into lightning rod, lightning arrester, lightning conductor and lightning-protection belt.
The arrester is a discharger which can give priority to the discharge action of the protected electric appliance, limit the lightning impulse voltage and the operation overvoltage transmitted by a line, quickly recover the original state of insulation to the ground after the protection is finished, prepare for the next protection action and simultaneously recover the system to the normal working state.
To ensure stable and reliable operation of the lightning arrester, an on-line lightning arrester monitor is usually used to monitor the condition of the lightning arrester. The lightning arrester on-line monitoring instrument monitors the state of the lightning arrester by monitoring the leakage current and the lightning stroke frequency of the lightning arrester in real time and analyzing and processing the monitored data, and provides a reference basis for recent overhaul and maintenance frequency.
In order to meet the requirements of different servers or receiving devices and different power systems for circuit units of different lightning arrester on-line monitors, it is necessary to develop a lightning arrester on-line monitor with a modular design.
SUMMERY OF THE UTILITY MODEL
In order to facilitate different arrester on-line monitoring appearance's circuit unit to satisfy different servers or receiving arrangement and different electric power system demands, the utility model provides a modular design's arrester on-line monitoring appearance divides into two at least modules to circuit unit, according to different electric power system's different demands, assembles into different circuit unit fast, has the convenient advantage of assembling.
Realize the utility model discloses the technical scheme of purpose as follows:
an arrester on-line monitor with modular design comprises a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of an arrester;
the circuit unit includes:
the basic module is electrically connected with the data acquisition unit, processes the data transmitted by the data acquisition unit and transmits the data to a server or a receiving device, and the output end of a processor of the basic module is connected with at least one socket;
the liquid crystal display module is arranged in parallel with the basic module, the input end of a display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into the sockets, so that the plug-in fixation of the liquid crystal display module and the basic module is realized, and the processor is electrically connected with the display screen.
As a further improvement of the present invention, the base module includes a processor and a communication module, the processor is electrically connected to the communication module, and the communication module communicates with the server or the receiving device.
As a further improvement of the present invention, the communication module is a replaceable wireless module or a wire module.
As a further improvement of the present invention, the communication module is a BC26 wireless module and/or an RS485 wired module;
the BC26 wireless module and the RS485 wired module are both electrically connected with the processor;
the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module;
and lightning stroke signals and current signals processed by the processor are transmitted to the operation control room through the RS485 wired module.
As a further improvement of the present invention, the circuit unit further includes:
the Ethernet module is plugged with the other socket of the basic module, so that the plugging fixation of the Ethernet module and the basic module is realized, the electric connection of the processor and the Ethernet module is also realized, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
As a further improvement of the utility model, the base module is provided with a power supply wiring end;
further comprising:
the power supply terminal is electrically connected with the socket;
the socket is connected with the plug-in terminal in an inserted mode, and the power supply module is electrically connected with the power wiring terminal, so that the power supply module supplies power to the basic module, the liquid crystal display module, the communication module and the Ethernet module.
As a further improvement of the present invention, the present invention further comprises:
and the external signal detection module is electrically connected with the processor and sends the lightning strike impact data and the leakage current data output by the data acquisition unit to the processor.
Compared with the prior art, the beneficial effects of the utility model are that:
1. firstly, the utility model divides the circuit unit into at least two modules, and different circuit units can be quickly assembled according to different requirements of different power systems, thereby having the advantage of convenient assembly; the utility model discloses a modular design falls into four at least modules, can increase BC26 wireless module, RS485 wired module, RJ45 ethernet module, liquid crystal display module etc. according to the customer demand on basic module, both made things convenient for the customer to use, the later stage modularization of being convenient for again is maintained.
2. The utility model discloses a power module provides the power for external signal detection module, treater and communication module, guarantees the stable work of system.
3. The utility model discloses a modular design according to different customer demands, adopts different communication modes such as wireless, wired and on-the-spot LCD screen display.
Drawings
FIG. 1 is a current-voltage characteristic diagram of a zinc oxide valve plate;
FIG. 2 is a first block schematic diagram of a circuit unit;
FIG. 3 is a block diagram of a circuit unit;
FIG. 4 is a block schematic diagram III of a circuit unit;
FIG. 5 is a block diagram of a circuit unit;
fig. 6 is a schematic block diagram of an arrester on-line monitoring instrument with a modular design.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 6, an embodiment of the present invention provides an on-line monitoring instrument for lightning arrester with modular design, which includes a circuit unit electrically connected to a data acquisition unit of the lightning arrester; the circuit unit comprises a basic module and a liquid crystal display module, the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to the server or the receiving device, and the output end of a processor of the basic module is connected with at least one socket; the liquid crystal display module and the basic module are arranged in parallel, the input end of the display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into a socket, so that the liquid crystal display module and the basic module are fixedly plugged, and the processor is electrically connected with the display screen. Preferably, the base module comprises a processor, a communication module and an Ethernet module, wherein the processor is electrically connected with the communication module, and the communication module is communicated with the server or the receiving device. The communication module is a replaceable wireless module or a replaceable wired module. The communication module is a BC26 wireless module and/or an RS485 wired module; the BC26 wireless module and the RS485 wired module are electrically connected with the processor; the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through a BC26 wireless module; and lightning stroke signals and current signals processed by the processor are transmitted to the operation control room through the RS485 wired module. The Ethernet module is plugged with another socket of the basic module, so that the Ethernet module is fixedly plugged with the basic module, the processor is electrically connected with the Ethernet module, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
As a first implementation manner of the embodiment of the present invention, as shown in fig. 2, an online monitor for an arrester with a modular design includes a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of the arrester; the circuit unit comprises a basic module, a liquid crystal display module, a wireless module and an Ethernet module, wherein the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to a server or a receiving device, and the output end of a processor of the basic module is connected with two sockets; the liquid crystal display module and the circuit board of the basic module are arranged in parallel, the input end of the display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into a socket, so that the liquid crystal display module and the basic module are fixedly plugged, and the processor is electrically connected with the display screen. The basic module of the present embodiment includes a processor electrically connected to a communication module, which communicates with a server or a receiving device. The communication module is a replaceable wireless module or a replaceable wired module. The communication module is a BC26 wireless module; the BC26 wireless module is electrically connected with the processor; the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module. The Ethernet module is plugged with another socket of the basic module, so that the Ethernet module is fixedly plugged with the basic module, the processor is electrically connected with the Ethernet module, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
As a second implementation manner of the embodiment of the present invention, as shown in fig. 3, an online monitor for an arrester with a modular design includes a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of the arrester; the circuit unit comprises a basic module, a liquid crystal display module, a wireless module and a wired module, the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to the server or the receiving device, and the output end of a processor of the basic module is connected with two sockets; the liquid crystal display module and the circuit board of the basic module are arranged in parallel, the input end of the display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into a socket, so that the liquid crystal display module and the basic module are fixedly plugged, and the processor is electrically connected with the display screen. The basic module of the present embodiment includes a processor electrically connected to a wireless module and a wired module, which communicate with a server or a receiving device. The wireless module is a BC26 wireless module; the BC26 wireless module is electrically connected with the processor; the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module. The RS485 wired modules are electrically connected with the processor, and lightning stroke signals and current signals processed by the processor are transmitted to the operation control room through the RS485 wired modules.
As a third implementation manner of the embodiment of the present invention, as shown in fig. 4, an online monitor for an arrester with a modular design includes a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of the arrester; the circuit unit comprises a basic module, an Ethernet module, a wireless module and a wired module, the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to the server or the receiving device, the basic module of the embodiment comprises a processor, the processor is electrically connected with the Ethernet module, the wireless module and the wired module are communicated with the server or the receiving device, and the Ethernet module is communicated with the operation control room. The wireless module is a BC26 wireless module; the BC26 wireless module is electrically connected with the processor; the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module. The RS485 wired modules are electrically connected with the processor, and lightning stroke signals and current signals processed by the processor are transmitted to the operation control room through the RS485 wired modules. The Ethernet module is plugged with the socket of the basic module, so that the Ethernet module is fixedly plugged with the basic module, the processor is electrically connected with the Ethernet module, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
As a fourth implementation manner of the embodiment of the present invention, as shown in fig. 5, an arrester on-line monitor with a modular design includes a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of the arrester; the circuit unit comprises a basic module, an Ethernet module and a wireless module, the basic module is electrically connected with the data acquisition unit, the basic module processes data transmitted by the data acquisition unit and transmits the data to the server or the receiving device, the basic module of the embodiment comprises a processor, the processor is electrically connected with the Ethernet module and the wireless module, the wireless module and the Ethernet module are communicated with the server or the receiving device, and the Ethernet module is communicated with the operation control room. The wireless module is a BC26 wireless module; the BC26 wireless module is electrically connected with the processor; the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module. The Ethernet module is plugged with the socket of the basic module, so that the Ethernet module is fixedly plugged with the basic module, the processor is electrically connected with the Ethernet module, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
The utility model discloses the arrester is the zinc oxide arrester, and the valve block of zinc oxide arrester is main raw materials by zinc oxide, and the volt-ampere characteristic of zinc oxide valve block demonstrates good and flat volt-ampere characteristic in certain extent, as shown in figure 1, the volt-ampere characteristic of zinc oxide valve block can divide into low electric field district I, well electric field district II and high electric field district III 3 districts. The performance of the zinc oxide arrester directly influences the safe operation of an electric power system, the zinc oxide arrester can age gradually under the action of power frequency high voltage for a long time, the aging of the zinc oxide arrester is not enough by one-year pre-test, even if the qualified zinc oxide arrester is pre-tested, the breakdown damage can happen in the operation, the protection characteristic is reduced, the serious consequence can be generated, and the zinc oxide arrester must be strictly monitored for ensuring the safe operation of the zinc oxide arrester.
The working principle of the arrester provided by the embodiment of the utility model is that when the electric power system works normally, the arrester series connection gap bears all voltage, and no current flows through the valve block. When overvoltage occurs in an electric power system and the amplitude exceeds the gap discharge voltage, the gap breaks down, impact current flows through the valve plate to the ground, and the voltage drop (called residual voltage) of the valve plate per se is maintained within a certain range due to the nonlinear characteristic of the resistor, so that the overvoltage amplitude on the electric power equipment is limited, and the electric power equipment is protected. When the surge overvoltage disappears, the power frequency follow current in the gap still flows through the valve plate, and the voltage born by the lightning arrester is only the working voltage, so the current is far smaller than the surge current under the influence of the nonlinear characteristic of resistance, and the arc can be cut off when the power frequency current passes through zero for the first time in the gap. Therefore, the lightning arrester is not more than a half power frequency period from clearance breakdown to cutting off of power frequency follow current, the relay protection cannot act in time, and the power system is recovered to be normal.
The embodiment of the utility model provides a data acquisition unit of arrester, including detection resistance, current acquisition module and temperature sensor, detection resistance concatenates on the zinc oxide resistance valve block ground wire of arrester, temperature sensor's sensing head and detection resistance contact, and current acquisition module real-time supervision flows through the current value of detection resistance, and temperature sensor and current acquisition module all are connected with the communication module electricity, and communication module is to monitoring system transmission data.
For the convenience of installation and monitoring, the utility model discloses current acquisition module is current sensor. The utility model discloses current acquisition module, including current acquisition chip and electric capacity C1, positive power supply and reference power supply, the positive power supply is the power supply of current acquisition chip, reference power supply is connected with the reference voltage pin of current acquisition chip, the positive power supply concatenates electric capacity C1 back ground connection, the both ends of detecting resistance R1 are connected respectively to the positive pin of input of current acquisition chip and input negative pin, communication module is connected to the output pin of current acquisition chip, zinc oxide resistance valve block R0 concatenates ground connection behind the detecting resistance R1. The current acquisition chip comprises an operational amplifier, a resistor R21, a resistor R22, a resistor R23 and a resistor R24, wherein a reference power supply is connected with the positive input end of the operational amplifier after being connected with the resistor R23 in series, a zinc oxide resistor valve plate R0 is connected with the positive input end of the operational amplifier after being connected with a resistor R24 in series, a detection resistor R1 is connected with the negative input end of the operational amplifier after being connected with the resistor R22 in series, a resistor R21 is connected between the negative input end and the output end of the operational amplifier, and the output end of the operational amplifier is electrically connected with the communication module.
The utility model discloses treater adopts to have the ARM kernel as core processor, and LCD display module is chooseed for use to the liquid crystal display module, and NB-IoT wireless communication module is chooseed for use to the wireless communication module.
The embodiment of the utility model provides a through AC-L and AC-N external wiring end, adopt modular design with outside thunderbolt impact signal and leak current signal processing back, with thunderbolt impact data and leak current data send for single chip microcomputer control circuit and carry out the calculation processing. And finally, transmitting the lightning stroke signal and the current signal (less than 50uA) to a BC26 wireless transmission module, displaying the action times and the leakage current data in real time through a liquid crystal display module, wherein the signals can monitor the operation data of the lightning arrester in real time, judge the operation health state of the lightning arrester and predict the fault of the lightning arrester as soon as possible.
The utility model discloses power module provides the power for external signal detection circuitry, single chip microcomputer control circuit and BC26 wireless transmission module, guarantees the stable work of system. The utility model discloses circuit output divide into four modules, can be according to the customer's demand with transmission module design change for BC26 wireless module, RS485 wired module, RJ45 ethernet module, on-the-spot liquid crystal display module etc. make things convenient for the customer to use, the later stage modularization of being convenient for is maintained.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The lightning arrester on-line monitor is characterized by comprising a circuit unit, wherein the circuit unit is electrically connected with a data acquisition unit of a lightning arrester;
the circuit unit includes:
the basic module is electrically connected with the data acquisition unit, processes the data transmitted by the data acquisition unit and transmits the data to a server or a receiving device, and the output end of a processor of the basic module is connected with at least one socket;
the liquid crystal display module is arranged in parallel with the basic module, the input end of a display screen of the liquid crystal display module is connected with a group of plug-in terminals, and the plug-in terminals are inserted into the sockets, so that the plug-in fixation of the liquid crystal display module and the basic module is realized, and the processor is electrically connected with the display screen.
2. An on-line arrester monitoring instrument as claimed in claim 1, wherein the base module comprises a processor and a communication module, the processor is electrically connected with the communication module, and the communication module is in communication with the server or the receiving device.
3. An arrester on-line monitoring instrument according to claim 2, characterized in that the communication module is a replaceable wireless module or a wired module.
4. The on-line arrester monitoring instrument as claimed in claim 2, wherein the communication module is a BC26 wireless module and/or an RS485 wired module;
the BC26 wireless module and the RS485 wired module are both electrically connected with the processor;
the lightning stroke signal and the current signal processed by the processor are transmitted to a server or a receiving device through the BC26 wireless module;
and lightning stroke signals and current signals processed by the processor are transmitted to the operation control room through the RS485 wired module.
5. The on-line arrester monitoring instrument as claimed in claim 3 or 4, wherein the circuit unit further comprises:
the Ethernet module is plugged with the other socket of the basic module, so that the plugging fixation of the Ethernet module and the basic module is realized, the electric connection of the processor and the Ethernet module is also realized, and the Ethernet module transmits data processed by the basic module to a server or a receiving device or an operation control room through Ethernet.
6. The on-line arrester monitoring instrument as claimed in claim 1, wherein the base module is provided with a power terminal;
further comprising:
the power supply terminal is electrically connected with the socket;
the socket is connected with the plug-in terminal in an inserted mode, and the power supply module is electrically connected with the power wiring terminal, so that the power supply module supplies power to the basic module, the liquid crystal display module, the communication module and the Ethernet module.
7. The on-line arrester monitoring instrument as claimed in claim 1 or 6, further comprising:
and the external signal detection module is electrically connected with the processor and sends the lightning strike impact data and the leakage current data output by the data acquisition unit to the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981520.2U CN213957578U (en) | 2020-09-11 | 2020-09-11 | Lightning arrester on-line monitoring appearance of modular design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981520.2U CN213957578U (en) | 2020-09-11 | 2020-09-11 | Lightning arrester on-line monitoring appearance of modular design |
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| Publication Number | Publication Date |
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| CN213957578U true CN213957578U (en) | 2021-08-13 |
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| CN202021981520.2U Active CN213957578U (en) | 2020-09-11 | 2020-09-11 | Lightning arrester on-line monitoring appearance of modular design |
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- 2020-09-11 CN CN202021981520.2U patent/CN213957578U/en active Active
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