CN207572966U - A kind of neutral point non-linear ground resistance - Google Patents
A kind of neutral point non-linear ground resistance Download PDFInfo
- Publication number
- CN207572966U CN207572966U CN201721635193.3U CN201721635193U CN207572966U CN 207572966 U CN207572966 U CN 207572966U CN 201721635193 U CN201721635193 U CN 201721635193U CN 207572966 U CN207572966 U CN 207572966U
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- China
- Prior art keywords
- circuit board
- processor
- bottom case
- cover board
- control assembly
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Abstract
The utility model discloses a kind of neutral point non-linear ground resistances, including circuit board, bottom case, cover board, control assembly, the circuit board is provided on the inside of the bottom case, the circuit board includes a reinforcing valve block group, the side for strengthening valve block group is provided with cat walk, the cat walk includes a fuse, zinc oxide valve plate group is provided on rear side of the fuse, and the fuse and the zinc oxide valve plate group are arranged in a protective housing, the cover board is provided on the upside of the bottom case, processor is provided at the top of the cover board, the control assembly is provided on the right side of the processor, the control assembly includes a housing, touch screen is provided on the housing, data transmission device is provided on the right side of the control assembly.The beneficial effects of the utility model are：Structure design is more reasonable, easily facilitates maintenance, and barrier propterty is more preferable, and quality of protection is more preferable.
Description
Technical field
The utility model is related to electric protective equipment design fields, and electricity is grounded more particularly to a kind of neutral point non-linear
Resistance.
Background technology
The ground connection of electrical equipment is divided into two major class of effective grounding and non-effective earthing, wherein non-effective earthing utilization rate very
Height, it have the advantages that it is at low cost, be easily installed, power supply reliability is high, safe, but system insulation is threatened it is bigger,
There is a kind of neutral point non-linear ground resistance later, by two zinc oxide valve plate groups in parallel, in zinc oxide valve plate group
Containing several nonlinear resistances, it can be achieved that limiting system overvoltage and eliminating the purpose of system resonance, but this device is due to structure
It is too simple and crude, it is voluntarily to be assembled by worker mostly, structure design is mostly unreasonable, and zinc oxide valve plate group is under extreme conditions
It may explode, be protected without corresponding protective device.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of neutral point non-linear ground resistance.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of neutral point non-linear ground resistance including circuit board, bottom case, cover board, control assembly, is set on the inside of the bottom case
The circuit board is equipped with, the circuit board includes a reinforcing valve block group, is provided in the side for strengthening valve block group small logical
Road, the cat walk include a fuse, zinc oxide valve plate group, and the fuse and institute are provided on rear side of the fuse
It states zinc oxide valve plate group to be arranged in a protective housing, is provided with current transformer on the right side of the circuit board, on the bottom case
Side is provided with the cover board, and processor is provided at the top of the cover board, the control assembly, institute are provided on the right side of the processor
It states control assembly and includes a housing, touch screen is provided on the housing, is provided with control button on the right side of the touch screen, institute
It states and data transmission device is provided on the right side of control assembly, indicator light is provided on the right side of the data transmission device.
In above structure, maintenance personnel starts the processor by the control button of the control assembly first,
Then by the neutral point of circuit front edge of board connection electrical equipment, the rear end ground connection of the current transformer, then described
Input circuit parameter on touch screen including cat walk damage quantity alarming value etc., can start normal work after the completion of setting
Make, during normal work, the normal lamp of the indicator light is bright, and the voltage of neutral point is very low, and the circuit board is substantially at open circuit shape
State works as system jam, when neutral point has high power overvoltage, the zinc oxide valve plate group conducting in the cat walk,
Voltage is limited in setting range, when resonance occurs for system, the zinc oxide valve plate group can absorb resonant energy, the oxygen
Ground connection energy of a charge can also be absorbed by changing zinc valve block group, in extreme circumstances, the zinc oxide valve plate of some cat walk
Group can exit conducting by way of the fuse blows access, the fusing if fuse fails, the oxidation
Zinc valve block group is exploded, and the protective housing also can guarantee that explosion is happened in the cat walk, and it is described small logical not influence other
Road, the processor detect the working condition of each cat walk, are damaged if any cat walk some described, i.e., described in real time
Screen display is touched, when the cat walk damage amount reaches alarming value, the data transmission device will be sent to maintenance personnel
Fault message, maintenance personnel can immediately safeguard device, remove the cover board to the circuit board on the bottom case
It is safeguarded, it is very convenient.
In order to further improve quality of protection, the cat walk on the circuit board is provided with several, and quantity is unlimited,
The reinforcing valve block group on the circuit board sets one group, and the reinforcing valve block group and all cat walks are in parallel, institute
Fuse is stated to connect by conducting wire with the zinc oxide valve plate group.
In order to further improve quality of protection, the circuit board is connect with the current transformer by conducting wire, the electricity
A ground wire, the entire circuit board sealing are stretched out in the hole that current transformer is set from the bottom case, and are designed with heat dissipation dress
It puts.
In order to further improve quality of protection, the current transformer is connected with the processor by conducting wire, described
Control assembly is connected with the processor by conducting wire, and the data transmission device is connected with the processor by conducting wire
It connects, the indicator light is connected with the processor with the processor by conducting wire.
In order to further improve quality of protection, the circuit board is connected with the bottom case by screw fastening, the electricity
Current transformer is connected with the bottom case by screw fastening, and the bottom case is connected with the cover board by screw fastening.
In order to further improve quality of protection, the cover board is connected with the processor by screw fastening, the lid
Plate is connected with the control assembly by screw fastening, and the cover board is connected with the data transmission device by screw fastening
It connects, the cover board is connected with the indicator light by screw fastening.
The beneficial effects of the utility model are：Structure design is more reasonable, easily facilitates maintenance, and barrier propterty is more preferable, protects
Protect better quality.
Description of the drawings
Fig. 1 is a kind of main sectional view of neutral point non-linear ground resistance described in the utility model；
Fig. 2 is a kind of solid space view of neutral point non-linear ground resistance described in the utility model；
Fig. 3 is a kind of sectional view of bowing of the circuit board of neutral point non-linear ground resistance described in the utility model.
The reference numerals are as follows：
1st, bottom case；2nd, cover board；3rd, data transmission device；4th, control assembly；5th, processor；6th, circuit board；7th, Current Mutual Inductance
Device；8th, indicator light；9th, control button；10th, housing；11st, touch screen；12nd, zinc oxide valve plate group；13rd, strengthen valve block group；14th, it melts
Disconnected device；15th, protective housing；16th, cat walk.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1-Figure 3, a kind of neutral point non-linear ground resistance, including circuit board 6, bottom case 1, cover board 2, control group
Part 4,1 inside of bottom case are provided with circuit board 6, and for arranging cat walk 16 and strengthening valve block group 13, circuit board 6 includes circuit board 6
One is strengthened valve block group 13, is strengthened valve block group 13 and is used to protect system safety when all cat walks 16 damage, is strengthening valve
The side of piece group 13 is provided with cat walk 16, and cat walk 16 is used to arrange fuse 14 and zinc oxide valve plate group 12, cat walk 16
Including a fuse 14, fuse 14 is for fuse protection zinc oxide valve plate group 12 in extreme circumstances, 14 rear side of fuse
Zinc oxide valve plate group 12 is provided with, zinc oxide valve plate group 12 is used to protection system be connected in overvoltage, and fuse 14 and oxygen
Change zinc valve block group 12 to be arranged in a protective housing 15, protective housing 15 is used to completely cut off each cat walk 16 and protection cat walk 16
Not damaged by other cat walks 16 influences, 6 right side of circuit board is provided with current transformer 7, and 1 upside of bottom case is provided with cover board
2, cover board 2 maintains easily personnel and opens and carry out maintenance circuitry plate 6 for arranging processor 5 etc., and 2 top of cover board is provided with place
Device 5 is managed, processor 5 is for controlling each device, and 5 right side of processor is provided with control assembly 4, and control assembly 4 is used for man-machine friendship
Mutual and start and stop processor 5 etc., control assembly 4 include a housing 10, and housing 10 is used to arrange touch screen 11 and control button 9,
Touch screen 11 is provided on housing 10, touch screen 11 is for input circuit parameter and display abort situation etc., 11 right side of touch screen
Control button 9 is provided with, control button 9 is used for start and stop processor 5, and 4 right side of control assembly is provided with data transmission device 3, number
It is used to alarm to maintenance personnel according to transmitting device 3,3 right side of data transmission device is provided with indicator light 8, and indicator light 8 is used to indicate
Current working status.
In above structure, maintenance personnel starts processor 5 by the control button 9 of control assembly 4 first, then by circuit
6 front end of plate connects the neutral point of electrical equipment, and the rear end ground connection of current transformer 7, then input circuit is joined on touch screen 11
Number damages quantity alarming value etc. including cat walk 16, can start to work normally after the completion of setting, during normal work, indicator light 8
Normal lamp it is bright, the voltage of neutral point is very low, and circuit board 6 is substantially at open-circuit condition, works as system jam, and neutral point has
During high power overvoltage, the zinc oxide valve plate group 12 in cat walk 16 is connected, and voltage is limited in setting range, when system occurs
Resonance, zinc oxide valve plate group 12 can absorb resonant energy, and zinc oxide valve plate group 12 can also absorb ground connection energy of a charge, in pole
In the case of end, the zinc oxide valve plate group 12 of some cat walk 16 can exit conducting in a manner that fuse 14 fuses access,
The fusing if fuse 14 fails, zinc oxide valve plate group 12 are exploded, and it is small logical that protective housing 15 also can guarantee that explosion is happened at
In road 16, other cat walks 16 are not influenced, and processor 5 detects the working condition of each cat walk 16 in real time, small logical if any some
Road 16 is damaged, i.e., is shown on touch screen 11, and when 16 damage amount of cat walk reaches alarming value, data transmission device 3 will be to dimension
Shield personnel send fault message, and maintenance personnel can immediately safeguard device, remove cover board 2 to the circuit board 6 on bottom case 1
It is safeguarded, it is very convenient.
In order to further improve quality of protection, the cat walk 16 on circuit board 6 is provided with several, and quantity is unlimited, circuit
Reinforcing valve block group 13 on plate 6 sets one group, strengthens valve block group 13 and all cat walks 16 in parallel, fuse 14 and zinc oxide
Valve block group 12 is connected by conducting wire, and circuit board 6 is connect with current transformer 7 by conducting wire, and current transformer 7 is set from bottom case 1
A ground wire is stretched out in the hole put, and whole circuit board 6 seals, and is designed with radiator, and current transformer 7 is logical with processor 5
It crosses conducting wire to be connected, control assembly 4 is connected with processor 5 by conducting wire, and data transmission device 3 passes through conducting wire with processor 5
It is connected, indicator light 8 is connected with processor 5 with processor 5 by conducting wire, and circuit board 6 is connected with bottom case 1 by screw fastening
It connects, current transformer 7 is connected with bottom case 1 by screw fastening, and bottom case 1 is connected with cover board 2 by screw fastening, cover board 2
It is connected with processor 5 by screw fastening, cover board 2 is connected with control assembly 4 by screw fastening, and cover board 2 is passed with data
Defeated device 3 is connected by screw fastening, and cover board 2 is connected with indicator light 8 by screw fastening.
The basic principle, main feature and advantage of the utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention.
Claims (6)
1. a kind of neutral point non-linear ground resistance, it is characterised in that：It is described including circuit board, bottom case, cover board, control assembly
The circuit board is provided on the inside of bottom case, the circuit board includes a reinforcing valve block group, in the side for strengthening valve block group
Cat walk is provided with, the cat walk includes a fuse, zinc oxide valve plate group is provided with, and described on rear side of the fuse
Fuse and the zinc oxide valve plate group are arranged in a protective housing, and current transformer is provided on the right side of the circuit board,
The cover board is provided on the upside of the bottom case, processor is provided at the top of the cover board, is provided on the right side of the processor described
Control assembly, the control assembly include a housing, and touch screen is provided on the housing, is provided on the right side of the touch screen
Control button, the control assembly right side are provided with data transmission device, indicator light are provided on the right side of the data transmission device.
2. a kind of neutral point non-linear ground resistance according to claim 1, it is characterised in that：Institute on the circuit board
It states cat walk and is provided with several, quantity is unlimited, and the reinforcing valve block group on the circuit board sets one group, the reinforcing valve
Piece group and all cat walks are in parallel, and the fuse is connected with the zinc oxide valve plate group by conducting wire.
3. a kind of neutral point non-linear ground resistance according to claim 1, it is characterised in that：The circuit board with it is described
Current transformer is connected by conducting wire, and a ground wire is stretched out in the hole that the current transformer is set from the bottom case, entirely
The circuit board sealing, and it is designed with radiator.
4. a kind of neutral point non-linear ground resistance according to claim 1, it is characterised in that：The current transformer with
The processor is connected by conducting wire, and the control assembly is connected with the processor by conducting wire, the data transmission
Device is connected with the processor by conducting wire, and the indicator light is connected with the processor with the processor by conducting wire
It connects.
5. a kind of neutral point non-linear ground resistance according to claim 1, it is characterised in that：The circuit board with it is described
Bottom case is connected by screw fastening, and the current transformer and the bottom case are connected by screw fastening, the bottom case and
The cover board is connected by screw fastening.
6. a kind of neutral point non-linear ground resistance according to claim 1, it is characterised in that：The cover board and the place
Reason device is connected by screw fastening, and the cover board is connected with the control assembly by screw fastening, the cover board and institute
It states data transmission device by screw fastening to be connected, the cover board is connected with the indicator light by screw fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721635193.3U CN207572966U (en) | 2017-11-30 | 2017-11-30 | A kind of neutral point non-linear ground resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721635193.3U CN207572966U (en) | 2017-11-30 | 2017-11-30 | A kind of neutral point non-linear ground resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572966U true CN207572966U (en) | 2018-07-03 |
Family
ID=62688820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721635193.3U Expired - Fee Related CN207572966U (en) | 2017-11-30 | 2017-11-30 | A kind of neutral point non-linear ground resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115585A (en) * | 2020-08-25 | 2022-03-01 | 奇景光电股份有限公司 | Touch display device, driving circuit and automatic defect detection method |
-
2017
- 2017-11-30 CN CN201721635193.3U patent/CN207572966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115585A (en) * | 2020-08-25 | 2022-03-01 | 奇景光电股份有限公司 | Touch display device, driving circuit and automatic defect detection method |
| CN114115585B (en) * | 2020-08-25 | 2024-04-19 | 奇景光电股份有限公司 | Touch display device, driving circuit and automatic flaw detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20191130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |