CN220829584U - Large-scale earth mat on-line monitoring device - Google Patents
Large-scale earth mat on-line monitoring device Download PDFInfo
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- CN220829584U CN220829584U CN202322105205.3U CN202322105205U CN220829584U CN 220829584 U CN220829584 U CN 220829584U CN 202322105205 U CN202322105205 U CN 202322105205U CN 220829584 U CN220829584 U CN 220829584U
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 18
- 230000008054 signal transmission Effects 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 3
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- 208000025274 Lightning injury Diseases 0.000 description 1
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Abstract
The utility model discloses a large-scale ground network on-line monitoring device which comprises a monitoring power supply, a wireless communication unit, a liquid crystal display unit, a signal input unit, an alarm unit, a core processing unit, a ground resistance loop, a signal processing unit and a signal acquisition unit, wherein the monitoring power supply is connected with the wireless communication unit; the monitoring power supply output end is connected with the power supply end of the core processing unit, the liquid crystal display unit is connected with the signal transmission interface of the core processing unit, the alarm unit is connected with the output interface of the core processing unit, the wireless communication unit is connected with the output interface of the core processing unit, the output end of the signal input unit is connected with the input end of the core processing unit, the grounding resistor loop is connected with the signal transmission interface of the signal processing unit, the signal processing unit is connected with the input end of the signal acquisition unit, and the signal acquisition unit is connected with the input end of the core processing unit.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, and particularly relates to a large-scale ground network on-line monitoring device.
Background
In recent years, a plurality of domestic substations cause serious accidents due to lightning strike, most of the substations are related to unqualified grounding resistance of the grounding network, the grounding network plays roles of working grounding and protecting grounding, when the grounding resistance is overlarge, grounding faults occur, when the grounding faults occur, neutral point voltage offset is increased, sound phase and neutral point voltages can be overhigh and exceed the insulation requirement level, and therefore equipment is damaged; when lightning stroke or lightning wave attack occurs, high residual voltage is generated due to high current, so that nearby equipment is threatened by electric shock, the capacity of the grounding grid itself for protecting the equipment transmission line is reduced, and the equipment is easily damaged if the grounding resistance does not meet the design requirement; meanwhile, whether the grounding resistance of the grounding system is qualified or not is directly related to the personal safety of transformer substation operators and transformer substation overhaulers. In addition, as time goes by, the soil also can corrode the grounding device, so that the aging of the grounding device is emphasized, the safe operation of a transformer substation is seriously affected, and therefore, the regular monitoring of the grounding resistance of the grounding network is required to be enhanced, and the test result generates larger errors due to the interference of the current flowing into the power network of the system and the interference of the test lead.
The grounding resistor on-line monitoring system in the current market does not have anti-interference capability, but large-scale grounding network testing equipment with the anti-interference capability often needs to consume a large amount of manpower and material resources to carry out paying-off test (the length of a test line is usually thousands of meters), and does not have a wireless communication function.
Therefore, the utility model provides an on-line monitoring device with a wireless communication function and applied to a large-scale ground network.
Disclosure of utility model
In view of the above-mentioned problems with the background art, the present utility model has as its object: aims at providing a large-scale earth mat on-line monitoring device.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
The large-scale ground network on-line monitoring device comprises a monitoring power supply, a wireless communication unit, a liquid crystal display unit, a signal input unit, an alarm unit, a core processing unit, a ground resistance loop, a signal processing unit and a signal acquisition unit;
The monitoring power supply output end is connected with the power supply end of the core processing unit, the liquid crystal display unit is connected with the signal transmission interface of the core processing unit, the alarm unit is connected with the output interface of the core processing unit, the wireless communication unit is connected with the output interface of the core processing unit, the output end of the signal input unit is connected with the input end of the core processing unit, the grounding resistor loop is connected with the signal transmission interface of the signal processing unit, the signal processing unit is connected with the input end of the signal acquisition unit, and the signal acquisition unit is connected with the input end of the core processing unit;
the device also comprises a device shell, wherein the monitoring power supply, the wireless communication unit, the liquid crystal display unit, the signal input unit, the alarm unit, the core processing unit, the grounding resistance loop, the signal processing unit and the signal acquisition unit are all arranged in the device shell.
Further limited, equipment shell front end embedding is provided with the LCD screen, LCD screen one side embedding is provided with power source and shift knob, power source and shift knob are vertical to be arranged, LCD screen bottom embedding is provided with a plurality of expansion interfaces, LCD screen one side embedding is provided with a plurality of digital keys, digital key one side embedding is provided with the regulation pivot, the embedding of regulation pivot bottom is provided with input interface and output interface, LCD screen, power source, shift knob, expansion interface, digital key, regulation pivot, input interface and output interface are connected with monitoring power electricity respectively.
Further limiting, the side wall of the equipment shell is provided with a plurality of heat dissipation holes, and the heat dissipation capacity of the equipment can be improved through the structural design.
Further limited, the side wall of the equipment shell is provided with a plurality of reserved wiring holes, and the structure design can facilitate wiring, so that the wiring of the equipment is not restricted and is more attractive.
Further, it is limited that equipment shell bottom is equipped with the base, and such structural design sets up the base and makes equipment can vertically place, makes equipment can set up in the less monitoring environment of usage space.
Further limited, the number of the expansion interfaces is 5, and the expansion interfaces are USB HOST ports, so that monitoring information of a certain time period is copied by using the USB which is convenient to carry, and the structure is designed, and convenience and rapidness are realized.
Further limiting, when the signal acquisition unit monitors fault signals, the alarm unit is used for alarming, and through the structural design, the alarm unit is arranged, and when the impedance value is larger than the warning value, the alarm signal is sent out, so that workers are timely reminded of carrying out emergency repair.
The utility model can realize the monitoring and uploading of the grounding impedance of the grounding network of the transformer substation, has a wireless communication function, when the monitoring impedance is larger than a warning value, the warning unit can send warning information for prompting staff, the staff can contact emergency repair staff or other departments through the wireless communication function, the unit is not arranged in the prior art, communication can only be carried out through mobile phones, all departments are difficult to store remarks due to personnel variation, unfamiliar numbers are not timely answered during communication, the emergency repair time is delayed, the wireless communication unit can be timely arranged for communication, and the situations of delayed emergency repair and serious consequences are avoided; in addition, the existing large-scale grounding grid test equipment often needs to consume a large amount of manpower and material resources to carry out paying-off test (the length of a test line is thousands of meters in general), the cost of manpower and material resources is very high, and after the device is installed, the cost can be greatly reduced.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a flow chart of an embodiment of an on-line monitoring device for a large-scale network according to the present utility model;
FIG. 2 is a front view of an embodiment of an on-line monitoring device for a large-scale counterpoise according to the present utility model;
FIG. 3 is a side view of an embodiment of a large-scale counterpoise on-line monitoring device according to the present utility model;
FIG. 4 is a top view of an embodiment of an on-line monitoring device for a large-scale counterpoise according to the present utility model;
FIG. 5 is a schematic diagram of an embodiment of an on-line monitoring device for a large-scale ground network according to the present utility model;
The main reference numerals are as follows: the device comprises a device shell 1, a monitoring power supply 2, a wireless communication unit 3, a liquid crystal display unit 4, a signal input unit 5, an alarm unit 6, a core processing unit 7, a ground resistance loop 8, a signal processing unit 9, a signal acquisition unit 10, a liquid crystal display 11, a digital key 12, an input interface 13, an output interface 14, an adjusting rotating shaft 15, an expansion interface 16, a power interface 17, a switch button 18, a base 19, a heat dissipation hole 20 and a reserved wiring hole 21.
Detailed Description
In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 to 5, the large-scale ground network on-line monitoring device of the utility model comprises a monitoring power supply 2, a wireless communication unit 3, a liquid crystal display unit 4, a signal input unit 5, an alarm unit 6, a core processing unit 7, a ground resistance loop 8, a signal processing unit 9 and a signal acquisition unit 10;
The output end of the monitoring power supply 2 is connected with the power supply end of the core processing unit 7, the liquid crystal display unit 4 is connected with the signal transmission interface of the core processing unit 7, the alarm unit 6 is connected with the output interface of the core processing unit 7, the wireless communication unit 3 is connected with the output interface of the core processing unit 7, the output end of the signal input unit 5 is connected with the input end of the core processing unit 7, the grounding resistor loop 8 is connected with the signal transmission interface of the signal processing unit 9, the signal processing unit 9 is connected with the input end of the signal acquisition unit 10, and the signal acquisition unit 10 is connected with the input end of the core processing unit 7;
The device also comprises a device shell 1, wherein the monitoring power supply 2, the wireless communication unit 3, the liquid crystal display unit 4, the signal input unit 5, the alarm unit 6, the core processing unit 7, the ground resistance loop 8, the signal processing unit 9 and the signal acquisition unit 10 are all arranged in the device shell 1.
It is noted that, the liquid crystal display unit 4 is used for displaying the impedance value and the related information during the setting operation, the alarm unit 6 is used for alarming by sounding when the resistance value is higher than the alarm threshold value, and the wireless communication unit 3 is automatically connected, and the wireless communication unit 3 is connected with the equipment safety center or directly connected to the emergency repair personnel; the core processing unit 7 is used for receiving the electric signal of the information acquisition unit 10 and calculating the grounding resistance value and the impedance through the electric signal; the signal processing unit 7 is configured to receive the electrical signal of the ground resistance loop 8, determine whether the electrical signal is an effective electrical signal, and if the electrical signal is an ineffective electrical signal, the electrical signal is not transmitted, and if the electrical signal is an effective electrical signal, the electrical signal is transmitted to the signal acquisition unit 10, and further preset an alarm value of the alarm unit 6 through the signal input unit 5.
Preferably, the front end embedding of equipment shell 1 is provided with LCD screen 11, LCD screen 11 one side embedding is provided with power interface 17 and shift knob 18, power interface 17 and shift knob 18 vertical arrangement, LCD screen 11 bottom embedding is provided with a plurality of expansion interfaces 16, LCD screen 11 one side embedding is provided with a plurality of digital keys 12, digital key 12 one side embedding is provided with adjusts pivot 15, adjust pivot 15 bottom embedding and be provided with input interface 13 and output interface 14, LCD screen 11, power interface 17, shift knob 18, expansion interfaces 16, digital keys 12, adjust pivot 15, input interface 13 and output interface 14 are connected with monitoring power 2 electricity respectively.
Preferably, the side wall of the device housing 1 is provided with a plurality of heat dissipation holes 20, and the heat dissipation capability of the device can be improved by adopting the structural design. In practice, different numbers and shapes of the heat dissipation holes 20 can be used according to specific situations.
Preferably, the side wall of the equipment housing 1 is provided with a plurality of reserved wiring holes 21, so that the wiring is convenient, and the wiring of the equipment is not restricted and is more attractive. The aperture of the reserved wire holes 21 can also be considered in practice in particular according to the specific circumstances.
Preferably, the bottom of the equipment shell 1 is provided with a base 19, and the base 19 is arranged in such a structural design that the equipment can be placed vertically, so that the equipment can be arranged in a monitoring environment with a small use space. In practice, the base 19 may be replaced, for example, by a universal wheel, according to specific considerations, so as to facilitate movement.
Preferably, the number of the expansion interfaces 16 is 5, so that the structure design is that the expansion interfaces are USB HOST ports, and monitoring information of a certain time period is copied by using the USB which is convenient to carry, so that the method is convenient and quick. In practice, the expansion interface 16 may be replaced by a USB interface or other types of interfaces according to specific considerations.
Preferably, when the signal acquisition unit 10 monitors a fault signal, the alarm unit 6 is used for alarming, and through the structural design, the alarm unit 6 is arranged, and when the impedance value is greater than the warning value, the alarm signal is sent out, so that the staff is timely reminded to carry out emergency repair.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the utility model disclosed herein.
Claims (7)
1. The utility model provides a large-scale net on-line monitoring device which characterized in that: the device comprises a monitoring power supply (2), a wireless communication unit (3), a liquid crystal display unit (4), a signal input unit (5), an alarm unit (6), a core processing unit (7), a grounding resistance loop (8), a signal processing unit (9) and a signal acquisition unit (10);
The monitoring power supply (2) is connected with the power supply end of the core processing unit (7), the liquid crystal display unit (4) is connected with the signal transmission interface of the core processing unit (7), the alarm unit (6) is connected with the output interface of the core processing unit (7), the wireless communication unit (3) is connected with the output interface of the core processing unit (7), the output end of the signal input unit (5) is connected with the input end of the core processing unit (7), the grounding resistor loop (8) is connected with the signal transmission interface of the signal processing unit (9), the signal processing unit (9) is connected with the input end of the signal acquisition unit (10), and the signal acquisition unit (10) is connected with the input end of the core processing unit (7);
Still include equipment shell (1), monitor power (2), wireless communication unit (3), LCD display element (4), signal input unit (5), alarm unit (6), core processing unit (7), ground resistance return circuit (8), signal processing unit (9) and signal acquisition unit (10) all set up in equipment shell (1).
2. The large-scale network on-line monitoring device according to claim 1, wherein: the device is characterized in that a liquid crystal screen (11) is embedded in the front end of the device shell (1), a power interface (17) and a switch button (18) are embedded in one side of the liquid crystal screen (11), the power interface (17) and the switch button (18) are vertically arranged, a plurality of expansion interfaces (16) are embedded in the bottom of the liquid crystal screen (11), a plurality of digital keys (12) are embedded in one side of the liquid crystal screen (11), an adjusting rotating shaft (15) is embedded in one side of the digital keys (12), an input interface (13) and an output interface (14) are embedded in the bottom of the adjusting rotating shaft (15), and the liquid crystal screen (11), the power interface (17), the switch button (18), the expansion interfaces (16), the digital keys (12), the adjusting rotating shaft (15), the input interface (13) and the output interface (14) are respectively electrically connected with a monitoring power supply (2).
3. The large-scale network on-line monitoring device according to claim 1, wherein: the side wall of the equipment shell (1) is provided with a plurality of radiating holes (20).
4. The large-scale network on-line monitoring device according to claim 1, wherein: the side wall of the equipment shell (1) is provided with a plurality of reserved wiring holes (21).
5. The large-scale network on-line monitoring device according to claim 1, wherein: the bottom of the equipment shell (1) is provided with a base (19).
6. The large-scale network on-line monitoring device according to claim 2, wherein: the number of the expansion interfaces (16) is 5.
7. The large-scale network on-line monitoring device according to claim 1, wherein: and when the signal acquisition unit (10) monitors fault signals, the alarm unit (6) alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105205.3U CN220829584U (en) | 2023-08-07 | 2023-08-07 | Large-scale earth mat on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105205.3U CN220829584U (en) | 2023-08-07 | 2023-08-07 | Large-scale earth mat on-line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220829584U true CN220829584U (en) | 2024-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322105205.3U Active CN220829584U (en) | 2023-08-07 | 2023-08-07 | Large-scale earth mat on-line monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220829584U (en) |
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2023
- 2023-08-07 CN CN202322105205.3U patent/CN220829584U/en active Active
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