CN215833581U - Grounding detection device and system - Google Patents
Grounding detection device and system Download PDFInfo
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- CN215833581U CN215833581U CN202121744627.XU CN202121744627U CN215833581U CN 215833581 U CN215833581 U CN 215833581U CN 202121744627 U CN202121744627 U CN 202121744627U CN 215833581 U CN215833581 U CN 215833581U
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Abstract
The utility model provides a grounding detection device and a grounding detection system, relates to the technical field of power line layout, solves the technical problem that the grounding condition of a circuit cannot be monitored in real time, and comprises the following steps: the monitoring and alarming module is connected with a grounding wire; the grounding wire comprises a first wire clamp to be connected and a second wire clamp to be connected, the first wire clamp to be connected is connected with the grounding grid, and the second wire clamp to be connected is connected with the conductor end; the monitoring alarm module comprises: the relay comprises an auxiliary contact, the grounding wire, the monitoring alarm module and the grounding grid form a monitoring loop, and the alarm lamp sends out an alarm signal when the monitoring loop is disconnected.
Description
Technical Field
The utility model relates to the technical field of power line layout, in particular to a grounding detection device and a grounding detection system.
Background
In a series of working processes of safety production maintenance, technical improvement, extension and the like of power transmission lines, power transformation equipment and power distribution equipment with power failure in a power system, grounding wires are required to be installed on the possible incoming sides to prevent the operators from accidental injuries such as electric shock and the like in order to ensure the personal safety of the operators and prevent the risks of sudden incoming calls or induced voltages. Therefore, in the above-mentioned series of work, the installation of the grounding wire according to the working range and requirements is a very important safety measure for protecting the safety of electric power workers during the work process.
However, in actual work, there are factors such as strand breakage of the grounding wire, oxidation and corrosion on the surface of the grounding body, and unclamping of the grounding wire clamp, so that the grounding end of the grounding wire is in poor contact with the grounding body, the space of the conductor end is narrow, and the like, which causes the conditions of unstable installation of the conductor end of the grounding wire (such as a spiral opening, a double-tongue type tongue opening, and the like), or poor contact, open circuit of the grounding grid, breakage, and the like. Therefore, the effectiveness of the installed grounding wire cannot be determined, and when any one of the factors exists, the grounding wire does not form effective grounding, and the virtual grounding wire cannot play a practical protection role and has great electric shock safety hidden danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a grounding detection device and a grounding detection system, which are used for solving the technical problem that the grounding condition of a circuit cannot be monitored in real time in the prior art.
[ practical novel solution ]
In a first aspect, the present invention provides a ground fault detection apparatus, including: the monitoring and alarming module is connected with a grounding wire;
the grounding wire comprises a first wire clamp to be connected and a second wire clamp to be connected, the first wire clamp to be connected is connected with the grounding grid, and the second wire clamp to be connected is connected with the conductor end;
the monitoring alarm module comprises: the relay comprises an auxiliary contact, the grounding wire, the monitoring alarm module and the grounding grid form a monitoring loop, and the alarm lamp sends out an alarm signal when the monitoring loop is disconnected.
In one possible implementation, the monitoring alarm module further comprises a sound playing device;
the sound playing device is used for sending out warning prompt sound when the monitoring loop is disconnected.
In one possible implementation, the monitoring alarm module further includes: and the indicator lamp is turned off when the warning lamp sends out a warning signal.
In one possible implementation, the monitoring alarm module further includes: and the power supply is used for providing electric energy for the monitoring loop.
In one possible implementation, the monitoring alarm module further includes a first resistor and a second resistor.
In one possible implementation, the monitoring alarm module further includes a manual test button, and the manual test button is used for detecting whether the monitoring alarm module is normal.
In one possible implementation, the ground wire further includes a ground terminal clamp and a conductor terminal clamp, the ground terminal clamp is connected to the ground grid, and the conductor terminal clamp is connected to the conductor terminal.
In one possible implementation, the warning lamp is connected in parallel with the sound playing device.
In one possible implementation, the monitoring alarm module further includes a third resistor.
In a second aspect, the present invention provides a ground fault detection system, comprising: the ground rod, the monitoring alarm module, the grounding wire and the grounding grid are connected, the grounding rod is connected with the grounding wire, and the monitoring alarm module is connected with the grounding grid through the grounding wire.
The utility model provides a grounding detection device and a system, comprising: the monitoring and alarming module is connected with a grounding wire; the grounding wire comprises a first wire clamp to be connected and a second wire clamp to be connected, the first wire clamp to be connected is connected with the grounding grid, and the second wire clamp to be connected is connected with the conductor end; the monitoring alarm module comprises: the relay comprises an auxiliary contact, the grounding wire, the monitoring alarm module and the grounding grid form a monitoring loop, and the alarm lamp sends out an alarm signal when the monitoring loop is disconnected. In this scheme, it can form the monitoring return circuit with earth connection, grounding network to monitor the module of reporting an emergency and asking for help or increased vigilance, after the earth connection ground connection, can utilize to monitor the grounding condition of reporting an emergency and asking for help or increased vigilance module real-time supervision earth connection, if the ground connection became invalid, can utilize to monitor the module of reporting an emergency and asking for help or increased vigilance and send out in time and report an emergency and ask for help or increased vigilance and remind the user, avoided causing the electric shock accident, alleviated the technical problem that can not monitor the circuit grounding condition in real time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a circuit diagram of a ground fault detection apparatus according to an embodiment of the present invention;
fig. 2 is an equivalent circuit diagram corresponding to a circuit diagram of a ground fault detection apparatus according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a monitoring alarm loop in the ground fault detection apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a monitoring alarm module in the ground fault detection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a plurality of monitoring alarm modules in the ground fault detection apparatus according to the embodiment of the present invention.
Icon: KA-relay; a VD-diode; SE-test button; e-warning light; an F-indicator light; d-a first wire clamp to be connected; a-a second wire clamp to be connected; k-power switch; r1 — third resistance; r2 — first resistance; r3 — second resistance; HA-Sound playback device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, 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 to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At present, in a series of working processes of safety production maintenance, technical improvement, extension and the like of power transmission lines, power transformation equipment and power distribution equipment with power failure in a power system, a grounding wire is required to be installed on a possible incoming side for ensuring personal safety of workers and preventing the danger of sudden incoming or induced voltage, so that the operators are prevented from accidental injuries such as electric shock. Therefore, in the above-mentioned series of work, the installation of the grounding wire according to the working range and requirements is a very important safety measure for protecting the safety of electric power workers during the work process. However, in actual work, there are factors such as strand breakage of the grounding wire, oxidation and corrosion on the surface of the grounding body, and unclamping of the grounding wire clamp, so that the grounding end of the grounding wire is in poor contact with the grounding body, the space of the conductor end is narrow, and the like, which causes the conditions of unstable installation of the conductor end of the grounding wire (such as a spiral opening, a double-tongue type tongue opening, and the like), or poor contact, open circuit of the grounding grid, breakage, and the like. Therefore, the effectiveness of the installed grounding wire cannot be determined, and when any one of the factors exists, the grounding wire does not form effective grounding, and the virtual grounding wire cannot play a practical protection role and has great electric shock safety hidden danger.
Based on this, this application embodiment provides a ground connection detection device and system, can alleviate the technical problem that can not real-time supervision circuit ground connection condition through this ground connection detection device.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 is a circuit diagram of a ground fault detection apparatus according to an embodiment of the present disclosure. As shown in fig. 1, includes: the monitoring alarm module is connected with the grounding wire;
the grounding wire comprises a first wire clamp D to be connected and a second wire clamp A to be connected, the first wire clamp D to be connected is connected with the grounding grid, and the second wire clamp A to be connected is connected with the conductor end;
the monitoring alarm module comprises: the relay KA comprises an auxiliary contact, a ground wire, a monitoring alarm module and a ground net form a monitoring loop, and the warning lamp E sends out a warning signal when the monitoring loop is disconnected.
Specifically, the first wire clamp D to be connected is connected with the grounding network, the second wire clamp a to be connected is connected with the corresponding conductor end, the conductor end is connected with the grounding network, the monitoring and alarming module comprises a relay KA and an alarm lamp E, the relay KA comprises an auxiliary contact, so that the grounding wire, the monitoring and alarming module and the grounding network form a loop circuit, and the alarm lamp E is used for sending an alarm signal when the loop circuit is disconnected.
In the embodiment of the application, the method comprises the following steps: the monitoring and alarming module is connected with a grounding wire; the grounding wire comprises a first wire clamp to be connected and a second wire clamp to be connected, the first wire clamp to be connected is connected with the grounding grid, and the second wire clamp to be connected is connected with the conductor end; the monitoring alarm module comprises: the relay comprises an auxiliary contact, the grounding wire, the monitoring alarm module and the grounding grid form a monitoring loop, and the alarm lamp sends out an alarm signal when the monitoring loop is disconnected. In the scheme, the monitoring alarm module, the grounding wire and the grounding grid can form a monitoring loop, when the grounding wire is grounded, the monitoring alarm module can be used for monitoring the grounding condition of the grounding wire in real time, if the grounding fails, the monitoring alarm module can be used for sending an alarm to remind a user in time, electric shock accidents are avoided, and the technical problem that the grounding condition of a circuit cannot be monitored in real time is solved; meanwhile, the device has the characteristics of simple structure, convenience in use and the like, and the battery using safe voltage provides a power supply for the device, so that the device also has the characteristics of high safety, convenience in carrying and the like.
In some embodiments, as an example, the monitoring alarm module further comprises a sound playing device HA;
the sound playing device HA is used for sending out an alarm prompt sound when the monitoring loop is disconnected.
In the embodiment of the application, the monitoring alarm module further comprises a sound playing device HA, so that the monitoring alarm module can be used for monitoring the grounding condition of the grounding wire in real time, when the monitoring loop is disconnected, the sound playing device can be used for sending out alarm sound, a user is timely reminded, electric shock accidents are avoided, and the technical problem that the grounding condition of the circuit cannot be monitored in real time is solved.
In some embodiments, as an example, the monitoring alert module further comprises: and the indicator lamp F is turned off when the warning lamp E sends out a warning signal.
Specifically, the indicator light F is used for indicating whether the monitoring loop is disconnected or not, and when the device forms the monitoring loop, the indicator light F is turned on to be green, which indicates that the monitoring loop is normal; when the monitoring loop is disconnected, the warning lamp E sends out a warning signal, and the indicator lamp F is turned off.
In some embodiments, as an example, the monitoring alert module further comprises: and the power supply is used for providing electric energy for the monitoring loop.
Specifically, before the grounding detection device is used, the grounding detection device needs to be tested, wherein the power supply comprises a power switch K, and when the power switch K of the monitoring alarm module is turned on, the power supply can provide electric energy for the monitoring loop.
In this embodiment of the present application, the monitoring alarm module further includes: and the power supply is used for providing electric energy for the monitoring loop. Therefore, the power supply provides electric energy for the monitoring loop, the monitoring loop can work normally, the monitoring alarm module can be used for monitoring the grounding condition of the grounding wire in real time, if the grounding fails, an alarm can be sent out in time to remind a user, electric shock accidents are avoided, and the technical problem that the grounding condition of the circuit cannot be monitored in real time is solved.
In some embodiments, as an example, the monitoring alarm module further includes a first resistor R2 and a second resistor R3.
Specifically, the first resistor R2 is connected in series with the warning light E, and the second resistor R3 is connected in series with the sound playing device HA.
In some embodiments, as an example, the monitoring alarm module further comprises a manual test button SE for detecting whether the monitoring alarm module is normal.
Specifically, before the grounding detection device is used, the grounding detection device needs to be tested, when a manual test button SE of the monitoring alarm module is pressed, the indicator lamp F lights up green, the alarm lamp E goes out red, and meanwhile, the alarm disappears, so that the monitoring alarm module can work normally.
In the embodiment of the application, the monitoring alarm module further comprises a manual test button, and the manual test button is used for detecting whether the monitoring alarm module is normal or not. Therefore, the monitoring alarm module is determined to be normal through the manual test button, and then the grounding detection device is put into use, so that the grounding detection device is ensured to be capable of effectively monitoring and alarming the monitoring loop, therefore, the grounding condition of the grounding wire can be monitored in real time by utilizing the monitoring alarm module, if the grounding fails, an alarm can be sent out in time to remind a user, electric shock accidents are avoided, and the technical problem that the grounding condition of the circuit cannot be monitored in real time is solved.
In some embodiments, as an example, the ground wire further comprises a ground terminal clamp connected to the ground network and a conductor terminal clamp connected to the conductor terminal.
Specifically, a grounding end clamp of the grounding wire is connected with a nearby grounding grid, and then conductor end clamps of the grounding wire are respectively connected with conductor ends, so that the grounding wire is completed.
In some embodiments, as an example, the warning lamp E is connected in parallel with the sound playing device HA.
In the embodiment of the application, parallel connection between warning lamp E and sound play device HA, when the monitoring return circuit disconnection, can shine modes such as red light or scintillation through warning lamp E and send alarm signal, can also utilize sound play device HA to send audible alarm simultaneously, consequently, can utilize to monitor the grounding condition of warning module real-time supervision earth connection, if the ground connection is inefficacy, can in time send and report an emergency and ask for help or increased vigilance and remind the user, avoid causing the electric shock accident, the technical problem that can not monitor the circuit grounding condition in real time HAs been alleviated.
In some embodiments, as an example, the monitoring alarm module further includes a third resistor R1 and further includes a diode VD.
The embodiment of the application provides a ground fault detection system, includes: the ground rod, as above-mentioned monitoring alarm module, earth connection and ground net, the earth rod is connected with the earth connection, and monitoring alarm module is connected with the ground net through the earth connection.
Specifically, the monitoring and alarming module is reliably arranged on each grounding rod of the grounding wire, so that the monitoring and alarming module and the grounding wire are assembled into a whole, the grounding wire is guaranteed to be detached together with the monitoring and alarming module when the grounding wire is detached, and grounding or short circuit caused by the detachment is avoided. Therefore, the grounding condition of the grounding wire can be monitored in real time by utilizing the monitoring alarm module, if the grounding fails, an alarm can be sent in time to remind a user, electric shock accidents are avoided, and the technical problem that the grounding condition of a circuit cannot be monitored in real time is solved.
For example, fig. 2 is an equivalent circuit diagram corresponding to a circuit diagram of a ground fault detection apparatus provided in an embodiment of the present invention; fig. 3 is a circuit diagram of a monitoring alarm loop in the ground fault detection apparatus according to the embodiment of the present invention, in particular, the monitoring alarm loop performs an alarm through an alarm lamp E and a sound playing apparatus HA; FIG. 4 is a schematic diagram of a monitoring alarm module in the ground fault detection apparatus according to an embodiment of the present invention; fig. 5 is a schematic diagram of a plurality of monitoring alarm modules in the ground fault detection apparatus according to the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An earth fault detection device, comprising: the monitoring and alarming module is connected with a grounding wire;
the grounding wire comprises a first wire clamp to be connected and a second wire clamp to be connected, the first wire clamp to be connected is connected with the grounding grid, and the second wire clamp to be connected is connected with the conductor end;
the monitoring alarm module comprises: the relay comprises an auxiliary contact, the grounding wire, the monitoring alarm module and the grounding grid form a monitoring loop, and the alarm lamp sends out an alarm signal when the monitoring loop is disconnected.
2. The ground fault detection device of claim 1, wherein said monitoring and alarm module further comprises a sound playing device;
the sound playing device is used for sending out warning prompt sound when the monitoring loop is disconnected.
3. The ground detection apparatus of claim 1, wherein the monitoring alarm module further comprises: and the indicator lamp is turned off when the warning lamp sends out a warning signal.
4. The ground detection apparatus of claim 1, wherein the monitoring alarm module further comprises: and the power supply is used for providing electric energy for the monitoring loop.
5. The ground detection device of claim 1, wherein the monitoring and alarm module further comprises a first resistor and a second resistor.
6. The ground detection device of claim 1, wherein the monitoring and alarming module further comprises a manual test button for detecting whether the monitoring and alarming module is normal.
7. The ground detection device of claim 1, wherein the ground wire further comprises a ground terminal clamp and a conductor terminal clamp, the ground terminal clamp being connected to the ground net and the conductor terminal clamp being connected to the conductor terminal.
8. The ground fault detection device of claim 1, wherein the warning light is connected in parallel with the sound player.
9. The ground detection device of claim 1, wherein the monitoring and alarm module further comprises a third resistor.
10. A ground fault detection system, comprising: a ground rod, a monitoring alarm module according to any one of claims 1 to 9, a ground wire and a ground net, wherein the ground rod is connected with the ground wire, and the monitoring alarm module is connected with the ground net through the ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121744627.XU CN215833581U (en) | 2021-07-28 | 2021-07-28 | Grounding detection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121744627.XU CN215833581U (en) | 2021-07-28 | 2021-07-28 | Grounding detection device and system |
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| CN215833581U true CN215833581U (en) | 2022-02-15 |
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| CN202121744627.XU Active CN215833581U (en) | 2021-07-28 | 2021-07-28 | Grounding detection device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577382A (en) * | 2022-04-07 | 2022-06-03 | 国网江苏省电力有限公司超高压分公司 | Overhead line grounding wire sequential assembly and disassembly protection device and use method |
| CN116047362A (en) * | 2023-03-31 | 2023-05-02 | 广东电网有限责任公司茂名供电局 | Grounding reliability detection method, system, medium and computer based on pressure detection |
-
2021
- 2021-07-28 CN CN202121744627.XU patent/CN215833581U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577382A (en) * | 2022-04-07 | 2022-06-03 | 国网江苏省电力有限公司超高压分公司 | Overhead line grounding wire sequential assembly and disassembly protection device and use method |
| CN114577382B (en) * | 2022-04-07 | 2024-01-23 | 国网江苏省电力有限公司超高压分公司 | Overhead line grounding wire sequential assembling and disassembling protection device and use method |
| CN116047362A (en) * | 2023-03-31 | 2023-05-02 | 广东电网有限责任公司茂名供电局 | Grounding reliability detection method, system, medium and computer based on pressure detection |
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