CN217112524U - Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester - Google Patents
Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester Download PDFInfo
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- CN217112524U CN217112524U CN202122758592.1U CN202122758592U CN217112524U CN 217112524 U CN217112524 U CN 217112524U CN 202122758592 U CN202122758592 U CN 202122758592U CN 217112524 U CN217112524 U CN 217112524U
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Abstract
The application discloses an intelligent device with an alarm function for replacing an online monitoring meter of a lightning arrester in an electrified way, wherein a circuit board is arranged in an insulating box body of the intelligent device, an acquisition module and a power supply circuit module which are electrically connected are arranged on the circuit board, and a sampling socket is arranged on the right side of the upper surface of the insulating box body and is electrically connected to the input end of the acquisition module; the liquid crystal display screen is arranged in the center of the upper surface of the insulation box body and is electrically connected to the output end of the acquisition module, and the liquid crystal display screen is used for displaying sampling data output by the acquisition module; the flash lamp is arranged on the upper surface of the insulating box body, is positioned below the sampling socket and is used for indicating that the intelligent device is in a safe operation state; one end of the test wire is provided with a wire clamp, and the other end is provided with a wiring end so as to connect the intelligent device and the lightning arrester. Through the technical scheme in this application, can accomplish online monitoring table change work under the circumstances that the arrester does not have a power failure, guarantee transformer substation's steady operation.
Description
Technical Field
The application relates to the technical field of lightning arresters, in particular to an intelligent device with an alarm function and for replacing an online monitoring meter of a lightning arrester in a charged mode.
Background
The lightning arresters with the voltage class of 35kV and above in the transformer substation are provided with the online monitoring meters, so that the leakage current of the lightning arresters can be monitored in real time, the action times of the lightning arresters can be recorded, and the safe operation of the transformer substation can be guaranteed. When the online monitoring meter is abnormal, the monitoring of the working condition of the arrester by technicians can be misjudged, and therefore the online monitoring meter of the arrester needs to be replaced in time.
In the prior art, the replacement of the online monitoring meter can be performed usually after the lightning arrester is powered off. The operation mode of powering off the lightning arrester not only needs each party to coordinate power failure and wastes time and labor, but also influences the reliability of power supply of the transformer substation, and can cause not little economic loss to users, especially enterprises of production types.
SUMMERY OF THE UTILITY MODEL
The purpose of this application lies in: the problem of change online monitoring table under the electrified condition of the arrester of solving 35kV and above voltage class can be under the circumstances that the arrester does not cut off the power supply, accomplish online monitoring table change work, guarantee transformer substation's steady operation.
The technical scheme of the application is as follows: the utility model provides an intelligent device who changes arrester on-line monitoring table with alarming function is electrified, this intelligent device is applicable to the electrified change to the on-line monitoring table, and on-line monitoring table electricity is connected in the arrester, and the arrester passes through the insulating part to be installed on the ground connection framework, and this intelligent device includes: the device comprises an insulating box body, an acquisition module, a power supply circuit module, a liquid crystal display screen, a flash lamp and a test wire; a circuit board is arranged in the insulating box body, an acquisition module and a power supply circuit module which are electrically connected are arranged on the circuit board, a sampling socket is arranged on the right side of the upper surface of the insulating box body, and the sampling socket is electrically connected with the input end of the acquisition module; the liquid crystal display screen is arranged in the center of the upper surface of the insulation box body and is electrically connected to the output end of the acquisition module, and the liquid crystal display screen is used for displaying sampling data output by the acquisition module; the flash lamp is arranged on the upper surface of the insulating box body, is positioned below the sampling socket and is used for indicating that the intelligent device is in a safe operation state; the one end of test wire is provided with the fastener, and the other end of test wire is provided with the wiring end, and wherein, the fastener is used for connecting the test wire in sampling socket, and the wiring end is used for connecting the test wire in arrester bottom and ground connection framework.
In any one of the above technical solutions, further, the sampling jack includes two voltage connection jacks and two current connection jacks, the two voltage connection jacks are respectively disposed on two sides of the current connection jack, the test line includes at least two current lines and two voltage lines, wherein a volume of the current line clamp is larger than a volume of the voltage line clamp.
In any one of the above technical solutions, further, the intelligent device further includes: a device switch; the device switch is arranged on the upper surface of the insulating box body and located below the flash lamp, one end of the device switch is electrically connected with the power supply circuit module, the other end of the device switch is electrically connected with the acquisition module and the liquid crystal display screen respectively, and when the device switch is in a conducting state, the power supply circuit module supplies power to the acquisition module, the liquid crystal display screen and the flash lamp.
In any of the above technical solutions, further, an AC power jack is further disposed on the left side of the upper surface of the insulating box, and an external AC power circuit and an AC-DC rectifier module electrically connected to each other are disposed in the power supply circuit module; the input end of the external alternating current power supply circuit is electrically connected to the alternating current power supply jack, and the output end of the external alternating current power supply circuit is electrically connected to the input end of the AC-DC rectification module; the output end of the AC-DC rectification module is electrically connected with the acquisition module, the liquid crystal display screen and the flash lamp.
In any one of the above technical solutions, further, the power supply circuit module further includes: a power selection switch and a battery circuit; the power supply selection switch is electrically connected with the external alternating current power supply circuit and the storage battery circuit, the power supply selection switch is a gating switch, and the power supply selection switch is used for selecting the power supply mode of the power supply circuit module, wherein the power supply mode of the power supply circuit module at least comprises an external power supply mode and a storage battery power supply mode.
In any one of the above technical solutions, further, the intelligent device further includes: a buzzer; the buzzer is arranged on the upper surface of the insulating box body and is positioned between the flashlight and the device switch.
In any one of the above technical solutions, further, the intelligent device further includes: a device ground; the device grounding end is arranged on the upper surface of the intelligent device and is used for grounding the intelligent device.
The beneficial effect of this application is:
technical scheme in this application, through setting up collection module, electronic components such as liquid crystal display and flash light, the leakage current to the arrester and arrester bottom and ground between voltage monitor, and utilize the flash light to carry out safe warning to the operating personnel, can be under the circumstances that the arrester does not have a power failure, accomplish online monitoring table change work, this intelligent device not only has the function of monitoring leakage current and arrester bottom and ground between voltage, and alarming function in addition, guarantee change work safety goes on, utilize the intelligent device in this application, the online monitoring table that can avoid the arrester changes the power failure operation of operation in-process transformer station, the economic loss that the operation caused has been maintained to the arrester has been reduced, the problem of changing online monitoring table under the electrified circumstances of arrester of 35kV and above voltage class has been solved.
In this application, still through setting up bee calling organ, utilize the mode that flash light and bee calling organ combined together, can in time send alarm signal to the bad or broken string condition of contact, remind the staff to inspect, this kind of method easy operation, security are high, have reduced the power off time simultaneously, have improved economic benefits.
Drawings
The advantages of the above and/or additional aspects of the present application 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 schematic diagram of an operation state of an intelligent device with an alarm function for live replacement of an online arrester monitoring meter according to an embodiment of the application;
fig. 2 is a schematic diagram of an intelligent device with an alarm function for live replacement of an online monitoring meter of a lightning arrester according to an embodiment of the application;
FIG. 3 is a schematic diagram of a test line according to one embodiment of the present application.
The lightning arrester comprises an arrester body 11, an online monitoring meter 12, an arrester body 13, an insulating piece 14, a grounding framework 15, an intelligent device 20, a device switch 21, an alternating current power supply jack 22, a power supply selection switch 23, a device grounding end 24, a liquid crystal display screen 25, a voltage wiring socket 26, a current wiring socket 27, a flashlight 28, a buzzer 29, a test wire 30, a current wire clamp 31 and a voltage wire clamp 32.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides an intelligent device with alarm function for live replacement of an online monitoring meter of an arrester, the intelligent device 20 is adapted to live replacement of the online monitoring meter 12, the online monitoring meter 12 is electrically connected to the arrester 11, the arrester 11 is mounted on a grounding framework 15 through an insulating member 14, and the intelligent device 20 includes: the device comprises an insulating box body, an acquisition module, a power supply circuit module, a liquid crystal display screen 25, a flash lamp 28 and a test wire 30.
Specifically, the online monitoring meter 12 for replacing the lightning arrester 11 in an electrified state is adopted, and the lightning arrester 11 and surrounding equipment are in an operating state, so that the safety distance between the lightning arrester and the electrified equipment must be paid attention to in the replacement process, and the occurrence of electric shock danger is prevented. The online monitoring meter 12 not only has the function of monitoring the leakage current and the discharge frequency of the lightning arrester, but also has the function of well conducting the bottom 13 of the lightning arrester with the ground, and can generate a floating potential to discharge once a breakpoint is generated. Therefore, in order to ensure the safe operation of the replacement, the liquid crystal display 25 and the flash lamp 28 are arranged in the intelligent device 20, so that the operator can read the data size acquired by the acquisition module through the liquid crystal display 25 and prompt the operator through the flash lamp 28, and the live replacement operation of the online monitoring meter 12 is realized.
Preferably, an overvoltage protection circuit is further disposed in the intelligent device 20, and the overvoltage protection circuit mainly comprises a resistance voltage division circuit and a triode circuit, so as to prevent sudden overvoltage from endangering the safety of operators and equipment in the process of replacing the online monitoring meter 12 in a charged state.
The present embodiment does not limit the implementation of the overvoltage protection circuit.
Specifically, the overvoltage protection circuit does not function when no overvoltage occurs; when overvoltage occurs, the overvoltage is added on the corresponding triode through the resistance voltage dividing circuit in the overvoltage protection circuit, the triode is conducted after the conduction threshold is reached, the overvoltage protection circuit works to directly ground the intelligent device 20, and the overvoltage flows to the ground from the overvoltage protection circuit, so that personal safety and device safety are prevented from being endangered.
In this embodiment, a circuit board is disposed in an insulating box of the intelligent device 20, an acquisition module and a power supply circuit module which are electrically connected are disposed on the circuit board, a sampling socket is disposed on the right side of the upper surface of the insulating box, and the sampling socket is electrically connected to an input end of the acquisition module; the acquisition module at least comprises a voltage acquisition circuit and a current acquisition circuit, the voltage acquisition circuit is used for acquiring voltage between the bottom 13 of the lightning arrester and the ground, and the current acquisition circuit is used for acquiring leakage current of the lightning arrester.
In this embodiment, the sampling socket includes at least two voltage connection sockets 26 and two current connection sockets 27, the four sockets are arranged side by side, the two voltage connection sockets 26 are respectively arranged on two sides of the current connection socket 27, wherein the volume of the current wire clamp 31 is larger than that of the voltage wire clamp 32. So that the operator can visually distinguish the current wire clamp 31 and the voltage wire clamp 32 to avoid misoperation.
In this embodiment, the test line 30 at least includes two current lines and two voltage lines, one end of the test line 30 is provided with a wire clamp, and the other end of the test line 30 is provided with a terminal, where the wire clamp is used to connect the test line 30 to the sampling socket, and the terminal is used to connect the test line 30 to the arrester bottom 13 and the grounding framework 15. The arrester bottom 13 is well conducted with the ground through the test wire 30, so that the voltage and current collection work can be completed through the test wire 30 by the collection module.
In this embodiment, this intelligent device 20's liquid crystal display 25 sets up in the central point of the upper surface of insulation box and puts, and liquid crystal display 25 electricity is connected in collection module's output, and liquid crystal display 25 is used for showing the sampling data of collection module output, realizes showing the voltage of gathering, the electric current, the operating personnel of being convenient for monitors current arrester 11's leakage current and arrester bottom 13 and voltage between the ground, reads in real time, takes notes relevant data.
In this embodiment, the flash lamp 28 sets up in the upper surface of insulating box, and the flash lamp 28 is located the below of sampling socket, and the flash lamp 28 is used for instructing intelligent device 20 to be in safe operation state, and the operating personnel of being convenient for observe, help promoting the security that online monitoring table 12 changed the operation with electricity.
Further, the smart device 20 further includes: a device switch 21; the device switch 21 is arranged on the upper surface of the insulating box body, the device switch 21 is positioned below the flash lamp 28, one end of the device switch 21 is electrically connected to the power supply circuit module, the other end of the device switch 21 is electrically connected to the acquisition module and the liquid crystal display screen 25 respectively, and when the device switch 21 is in a conducting state, the power supply circuit module supplies power to the acquisition module, the liquid crystal display screen 25 and the flash lamp 28.
On the basis of the above embodiment, the left side of the upper surface of the insulating box body is further provided with an alternating current power supply jack 22 so as to be externally connected with 220V alternating current voltage to supply power to the intelligent device 20 externally. Therefore, the power supply circuit module is provided with an external alternating current power supply circuit and an AC-DC rectification module which are electrically connected; the input end of the external alternating current power supply circuit is electrically connected to the alternating current power supply jack 22, and the output end of the external alternating current power supply circuit is electrically connected to the input end of the AC-DC rectification module; the output of the AC-DC rectification module is electrically connected to the acquisition module, the liquid crystal display 25 and the flash 28.
Specifically, when the 220V AC voltage is externally connected, the externally connected 220V AC voltage is rectified into the required DC voltage by the AC-DC rectifying module, so as to supply power to the intelligent device 20.
Further, the power supply circuit module further includes: a power supply selection switch 23 and a battery circuit; the power selection switch 23 is electrically connected to the external alternating current power supply circuit and the storage battery circuit, the power selection switch 23 is a gating switch, and the power selection switch 23 is used for selecting a power supply mode of the power supply circuit module, wherein the power supply mode of the power supply circuit module at least comprises an external power supply mode and a storage battery power supply mode.
Specifically, the intelligent device 20 is provided with two power supply modes of an external power supply alternating current 220V and a storage battery, only one power supply mode can be selected when the intelligent device is used, when the storage battery is used for supplying power, the external power supply is not connected, the power supply selection switch 23 is used for gating the storage battery circuit to enter a storage battery power supply mode, and the intelligent device 20 can be directly used.
On the basis of the above embodiment, the smart device 20 further includes: a buzzer 29; the buzzer 29 is provided on the upper surface of the insulating case, and the buzzer 29 is located between the strobe light 28 and the device switch 21.
Specifically, the online monitoring meter 12 is replaced in a live state by setting corresponding safe operation parameter ranges (including a current range and a voltage range) and performing safe operation early warning by combining the flash lamp 28 and the buzzer 29. Therefore, a single chip microcomputer module is further arranged in the intelligent device 20, so that the voltage and the current acquired by the acquisition module can be compared with the set safe operation parameter range, and an operator is reminded to perform live-line replacement operation of the online monitoring meter 12.
Because the value of the total current flowing through the arrester 11 under the normal operation condition is about 0.2mA-1.0mA, and the good conduction between the arrester bottom 13 and the ground is also indicated, in order to indicate that the working state of the arrester 11 is good, when the leakage current is set within the range of 0.1 mA-1.5 mA and the voltage between the arrester bottom 13 and the ground is not more than 36V, the flash lamp 28 is started to work, which indicates that the replacement work can be normally carried out;
when the leakage current is not in the range of 0.1 mA-1.5 mA or the voltage between the bottom 13 of the lightning arrester and the ground is higher than 36V, the buzzer 29 starts to work to remind the worker to stop replacing work and search abnormal reasons, such as: the test wire 30 itself is broken, the current wire clamp 31 or the voltage wire clamp 32 is disconnected from the arrester bottom 13 and the ground connection point, or poor contact occurs, insulation abnormality of the arrester 11 occurs, and the like.
On the basis of the above embodiment, the smart device 20 further includes: a device ground 24; the device ground 24 is disposed on the upper surface of the smart device 20, and the device ground 24 is used to ground the smart device 20.
When the intelligent device 20 is used for replacing the online monitoring meter 12 of the arrester 11 in a charged manner, the leakage current of the normal-phase arrester needs to be recorded firstly, then the test wire 30 is connected with the voltage wiring socket 26 and the current wiring socket 27 on the intelligent device 20 respectively, the two groups of wire clamps are clamped on the bottom 13 of the arrester and the grounding framework respectively, and the voltage wire clamp 32 is required to be arranged on the outer side of the current wire clamp 32. After the wiring operation is completed, the online monitoring meter 12 to be replaced can be detached, and the working states of the flash lamp 28 and the buzzer 29 and the voltage and current on the liquid crystal display screen 25 can be observed simultaneously in the detaching process.
When the flash lamp 28 flickers to work, the lightning arrester bottom 13 is well conducted with the ground, and the replacement work can be continued; when the buzzer 29 starts to work and makes a sound, the conduction between the bottom 13 of the arrester and the ground is abnormal, the work is stopped immediately, and the abnormal reason is searched.
The technical scheme of this application has been explained in detail in combination with the drawing above, and this application has provided the intelligent device who has alarming function's electrified change arrester on-line monitoring table, and this intelligent device is applicable to the electrified change to on-line monitoring table, and on-line monitoring table electricity is connected in the arrester, and the arrester passes through the insulating part to be installed on ground connection framework, and this intelligent device includes: the device comprises an insulating box body, an acquisition module, a power supply circuit module, a liquid crystal display screen, a flash lamp and a test wire; a circuit board is arranged in the insulating box body, an acquisition module and a power supply circuit module which are electrically connected are arranged on the circuit board, a sampling socket is arranged on the right side of the upper surface of the insulating box body, and the sampling socket is electrically connected with the input end of the acquisition module; the liquid crystal display screen is arranged in the center of the upper surface of the insulation box body and is electrically connected to the output end of the acquisition module, and the liquid crystal display screen is used for displaying sampling data output by the acquisition module; the flash lamp is arranged on the upper surface of the insulating box body, is positioned below the sampling socket and is used for indicating that the intelligent device is in a safe operation state; the one end of test wire is provided with the fastener, and the other end of test wire is provided with the wiring end, and wherein, the fastener is used for connecting the test wire in sampling socket, and the wiring end is used for connecting the test wire in the bottom and the ground connection framework of arrester. Through the technical scheme in this application, can accomplish online monitoring table change work under the circumstances that the arrester does not have a power failure, guarantee transformer substation's steady operation.
In the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The shapes of the various elements in the drawings are illustrative and do not preclude the existence of certain differences from the actual shapes, and the drawings are used for the purpose of illustrating the principles of the present application and are not intended to limit the present application.
Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the subject application without departing from the scope and spirit of the present application.
Claims (7)
1. Change intelligent device of arrester on-line monitoring table with alarming function live-line, intelligent device (20) are applicable to the live-line change to on-line monitoring table (12), on-line monitoring table (12) electricity is connected in arrester (11), install on ground connection framework (15) through insulating part (14) arrester (11), its characterized in that, intelligent device (20) include: the device comprises an insulating box body, an acquisition module, a power supply circuit module, a liquid crystal display screen (25), a flash lamp (28) and a test wire (30);
a circuit board is arranged in the insulating box body, the circuit board is provided with the acquisition module and the power supply circuit module which are electrically connected, the right side of the upper surface of the insulating box body is provided with a sampling socket, and the sampling socket is electrically connected with the input end of the acquisition module;
the liquid crystal display screen (25) is arranged at the center of the upper surface of the insulating box body, the liquid crystal display screen (25) is electrically connected to the output end of the acquisition module, and the liquid crystal display screen (25) is used for displaying sampling data output by the acquisition module;
the flash lamp (28) is arranged on the upper surface of the insulating box body, the flash lamp (28) is positioned below the sampling socket, and the flash lamp (28) is used for indicating that the intelligent device (20) is in a safe operation state;
one end of test wire (30) is provided with the fastener, the other end of test wire (30) is provided with the wiring end, wherein, the fastener be used for with test wire (30) connect in sampling socket, the wiring end be used for with test wire (30) connect in arrester bottom (13) and ground connection framework (15).
2. The intelligent device with the alarm function for the online monitoring meter of the charged replacement lightning arrester according to claim 1, wherein the sampling sockets at least comprise two voltage wiring sockets (26) and two current wiring sockets (27), the two voltage wiring sockets (26) are respectively arranged at two sides of the current wiring socket (27),
the test line (30) at least comprises two current lines and two voltage lines, wherein the volume of the current line clamp (31) is larger than that of the voltage line clamp (32).
3. The intelligent device with alarm function for charged replacement of lightning arrester on-line monitoring meter according to claim 1, characterized in that the intelligent device (20) further comprises: a device switch (21);
the device switch (21) is arranged on the upper surface of the insulating box body, the device switch (21) is located below the flash lamp (28), one end of the device switch (21) is electrically connected to the power supply circuit module, the other end of the device switch (21) is electrically connected to the acquisition module and the liquid crystal display screen (25) respectively, and when the device switch (21) is in a conducting state, the power supply circuit module supplies power to the acquisition module, the liquid crystal display screen (25) and the flash lamp (28).
4. The intelligent device with the alarm function for the online monitoring meter of the charged replacement lightning arrester according to claim 1 or 3, wherein an alternating current power supply jack (22) is further arranged on the left side of the upper surface of the insulating box body, and an external alternating current power supply circuit and an AC-DC rectification module which are electrically connected are arranged in the power supply circuit module;
the input end of the external alternating current power supply circuit is electrically connected to the alternating current power supply jack (22), and the output end of the external alternating current power supply circuit is electrically connected to the input end of the AC-DC rectification module;
the output end of the AC-DC rectifying module is electrically connected with the acquisition module, the liquid crystal display (25) and the flashlight (28).
5. The intelligent device with alarm function for online monitoring of charged replacement of lightning arrester according to claim 4, wherein the power supply circuit module further comprises: a power supply selection switch (23) and a battery circuit;
the power supply selection switch (23) is electrically connected to the external alternating current power supply circuit and the storage battery circuit, the power supply selection switch (23) is a gating switch, and the power supply selection switch (23) is used for selecting a power supply mode of the power supply circuit module, wherein the power supply mode of the power supply circuit module at least comprises an external power supply mode and a storage battery power supply mode.
6. The intelligent device with the alarm function for the online monitoring meter of the charged replacement lightning arrester according to claim 3, wherein the intelligent device (20) further comprises: a buzzer (29);
the buzzer (29) is arranged on the upper surface of the insulating box body, and the buzzer (29) is positioned between the flash lamp (28) and the device switch (21).
7. The intelligent device with alarm function for charged replacement of lightning arrester on-line monitoring meter according to claim 1, characterized in that the intelligent device (20) further comprises: a device ground (24);
the device ground (24) is disposed on an upper surface of the intelligent device (20), and the device ground (24) is used for grounding the intelligent device (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122758592.1U CN217112524U (en) | 2021-11-11 | 2021-11-11 | Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122758592.1U CN217112524U (en) | 2021-11-11 | 2021-11-11 | Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester |
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| Publication Number | Publication Date |
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| CN217112524U true CN217112524U (en) | 2022-08-02 |
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| CN202122758592.1U Active CN217112524U (en) | 2021-11-11 | 2021-11-11 | Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester |
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| CN (1) | CN217112524U (en) |
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2021
- 2021-11-11 CN CN202122758592.1U patent/CN217112524U/en active Active
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