CN206834741U - A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection - Google Patents
A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection Download PDFInfo
- Publication number
- CN206834741U CN206834741U CN201720721573.2U CN201720721573U CN206834741U CN 206834741 U CN206834741 U CN 206834741U CN 201720721573 U CN201720721573 U CN 201720721573U CN 206834741 U CN206834741 U CN 206834741U
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- Prior art keywords
- cabinet
- overvoltage protection
- arc extinguishing
- harmonic elimination
- fuse
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- 230000008030 elimination Effects 0.000 title claims abstract description 17
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000012212 insulator Substances 0.000 claims abstract description 12
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims 2
- 239000004973 liquid crystal related substance Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005350 ferromagnetic resonance Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection, including cabinet, brows are provided with the top of the cabinet, the preceding surface of cabinet is provided with microcomputerized controller, multifunctional meter is provided with beside the microcomputerized controller, high-voltage charge display device is provided with beside the multifunctional meter, temperature and humidity controller is provided with below the multifunctional meter, the inner side surface of cabinet is provided with insulator, the exterior insulator is provided with wall bushing, surface middle part is provided with simulation board before the cabinet, nameplate is provided with below the simulation board, the simulation board lower side is provided with electromagnetic lock, operating mechanism is provided with beside the electromagnetic lock, the operating mechanism rear is provided with limiting fuse.Beneficial effect is：The problem of route selection accuracy rate is low when overcoming slow conventional line selection apparatus route selection speed and arc grounding, not only fundamentally destroys the condition of ferromagnetic resonance, while avoids the accident that " PT " and " quick-fried insurance " is burnt caused by overvoltage.
Description
Technical field
Electrical equipment technical field is the utility model is related to, more particularly to a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection
Device.
Background technology
With social development, the safe operation of power system and the reliability of power supply have seemed more and more important.For a long time with
Come, in 3-35KV isolated neutral systems, singlephase earth fault evolution is usually：Intermittent arcing ground-stabilization
Arcing ground-metallic ground.In intermittent arc grounding, overvoltage is the most serious, and the overvoltage of its non-faulting phase is up to normal
Run phase voltage 3.15-3.5 times, even more high.So high overvoltage long duration of action will result in and electrically set in power network
The standby and accumulation of system insulation damage, insulation weak spot is formed, and then puncture over the ground and ultimately result in phase fault accident, and
And accident can be caused：The breakdown of insulation of electrical installation；Cable blows out phenomenon；Voltage transformer supersaturation, easily excites iron
Magnetic resonance, PT is caused to burn；Explosion of on Arrester, when having served as voltage energy more than the energy that arrester can bear, it will result in
Explosion of on Arrester.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of microcomputer arc extinguishing harmonic elimination and overvoltage
Protection device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection, including cabinet, the cabinet top is provided with brows, described
The preceding surface of cabinet is provided with microcomputerized controller, and multifunctional meter, the multifunctional meter are provided with beside the microcomputerized controller
Side is provided with high-voltage charge display device, is provided with temperature and humidity controller below the multifunctional meter, the inner side surface of cabinet is set
Insulator is equipped with, the exterior insulator is provided with wall bushing, and surface middle part is provided with simulation board, the mould before the cabinet
To intend being provided with nameplate below board, the simulation board lower side is provided with electromagnetic lock, and operating mechanism is provided with beside the electromagnetic lock,
The operating mechanism rear is provided with limiting fuse, and the limiting fuse rear is provided with electrothermal relay, the hot relay
Device rear is provided with isolation switch, and high pressure sensor is provided with below the isolation switch, and lower face is set before the cabinet
There is observation window, the observation window rear is provided with vacuum contactor, and the vacuum contactor rear is provided with overvoltage protection device,
The overvoltage protection device rear is provided with high-tension fuse, and the high-tension fuse rear is provided with voltage transformer, described
Once resonance eliminator is set beside voltage transformer.
In said structure, it is in metallic ground, the amplitude route selection of Main Basiss circuit zero-sequence current, master during arc grounding
Route selection is carried out according to the Sudden Changing Rate of circuit zero-sequence current before and after device action.
Further, the high-voltage charge display device is fixed by screws in inside the cabinet, and the electrification in high voltage shows
It is LED LCDs to show device, and the high-voltage charge display device electrically connects with the microcomputerized controller.
Further, the wall bushing is fixed by screws on the cabinet, and the wall bushing uses insulation material
Material is made, and the quantity of the wall bushing and position correspond with the insulator.
Further, the observation window is embedded on the cabinet, and the observation window is made of transparent resin or glass.
Further, the operating mechanism is connected by connecting rod with the isolation switch, the limiting fuse and institute
Electrothermal relay electrical connection is stated, the electrothermal relay electrically connects with the isolation switch.
Further, the high pressure sensor is connected electrically in the circuit between the isolation switch and the high-tension fuse
On, the high-tension fuse electrically connects with the microcomputerized controller.
Further, the overvoltage protection device is fixed by screws in the bottom of cabinet bulk, the overvoltage protection device
Electrically connected with the high-tension fuse.
The beneficial effects of the utility model are：Selected when overcoming slow conventional line selection apparatus route selection speed and arc grounding
The problem of line accuracy rate is low, not only fundamentally destroys the condition of ferromagnetic resonance, while avoids and burnt caused by overvoltage
" PT " and the accident of " quick-fried insurance ".
Brief description of the drawings
Fig. 1 is the front view structure sketch of a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection described in the utility model；
Fig. 2 is the side view structure sketch of a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection described in the utility model.
Description of reference numerals is as follows：
1st, brows；2nd, microcomputerized controller；3rd, multifunctional meter；4th, high-voltage charge display device；5th, temperature and humidity controller；6th, simulate
Board；7th, electromagnetic lock；8th, nameplate；9th, operating mechanism；10th, observation window；11st, wall bushing；12nd, insulator；13rd, isolation switch；14、
High pressure sensor；15th, limiting fuse；16th, electrothermal relay；17th, vacuum contactor；18th, overvoltage protection device；19th, high-voltage fuse
Disconnected device；20th, voltage transformer；21st, a resonance eliminator；22nd, cabinet.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As Figure 1-Figure 2, a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection, including cabinet 22, the top of cabinet 22
Brows 1 are provided with, 22 preceding surface of cabinet is provided with microcomputerized controller 2, and microcomputerized controller 2 is used for handling various data and controlling
Automatic route selection process processed, the side of microcomputerized controller 2 are provided with multifunctional meter 3, and multifunctional meter 3 is used for monitoring line voltage distribution electric current feelings
Condition, the side of multifunctional meter 3 are provided with high-voltage charge display device 4, and high-voltage charge display device 4 is used for display information, under multifunctional meter 3
Side is provided with temperature and humidity controller 5, and temperature and humidity controller 5 is used for realizing the temperature and humidity automatically adjusted in cabinet 22, cabinet
22 medial surfaces are provided with insulator 12, and wall bushing 11 is provided with outside insulator 12, and surface middle part is provided with mould before cabinet 22
Intend board 6, the lower section of simulation board 6 is provided with nameplate 8, and nameplate 8 is used for recording fix information, and the simulation lower side of board 6 is provided with electromagnetic lock
7, electromagnetic lock 7 is used for preventing that other people are opened accidentally cabinet door, and the side of electromagnetic lock 7 is provided with operating mechanism 9, operating mechanism 9 be used for into
Row control isolation switch 13, the rear of operating mechanism 9 are provided with limiting fuse 15, and limiting fuse 15 is used for limiting passing through circuit
Size of current, equipment caused by preventing electric current excessive damages completely, and the rear of limiting fuse 15 is provided with electrothermal relay 16, heat
The rear of relay 16 is provided with isolation switch 13, and isolation switch 13 is used for the break-make of control circuit, and the lower section of isolation switch 13 is set
There is high pressure sensor 14, high pressure sensor 14 is used for detecting whether circuit is in high pressure conditions, and lower face is set before cabinet 22
There is observation window 10, the rear of observation window 10 is provided with vacuum contactor 17, and the rear of vacuum contactor 17 is provided with overvoltage protection device
18, overvoltage protection device 18 is used for being grounded, and prevents that load voltage is too high, the rear of overvoltage protection device 18 is provided with high-tension fuse
19, high-tension fuse 19 is used for cutting off circuit in circuit overtension, and the rear of high-tension fuse 19 is provided with voltage transformer
20, the side of voltage transformer 20 sets once resonance eliminator 21, and a resonance eliminator 21 is used for the resonance in harmonic elimination power network, protection electricity
Press transformer 20.
In said structure, it is in metallic ground, the amplitude route selection of Main Basiss circuit zero-sequence current, master during arc grounding
Route selection is carried out according to the Sudden Changing Rate of circuit zero-sequence current before and after device action.
Further, high-voltage charge display device 4 is fixed by screws in inside cabinet 22, and high-voltage charge display device 4 is LED
LCDs, high-voltage charge display device 4 electrically connect with microcomputerized controller 2, and wall bushing 11 is fixed by screws in cabinet 22
On, wall bushing 11, which is adopted, to be made from an insulative material, and the quantity of wall bushing 11 and position correspond with insulator 12, observation window
10 are embedded on cabinet 22, and observation window 10 is made of transparent resin or glass, and operating mechanism 9 passes through connecting rod and isolation switch 13
It is connected, limiting fuse 15 electrically connects with electrothermal relay 16, and electrothermal relay 16 electrically connects with isolation switch 13, high pressure sensor
14 are connected electrically on the circuit between isolation switch 13 and high-tension fuse 19, and high-tension fuse 19 is electrically connected with microcomputerized controller 2
Connect, overvoltage protection device 18 is fixed by screws in the bottom of cabinet 22, and overvoltage protection device 18 electrically connects with high-tension fuse 19.
General principle, principal character and advantage of the present utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model requires protection scope
Defined by appended claims and its effect thing.
Claims (7)
1. a kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection, it is characterised in that：Including cabinet（22）, the cabinet（22）Top
Portion is provided with brows（1）, the cabinet（22）Preceding surface is provided with microcomputerized controller（2）, the microcomputerized controller（2）It is other
While it is provided with multifunctional meter（3）, the multifunctional meter（3）Side is provided with high-voltage charge display device（4）, the multifunctional meter
（3）Lower section is provided with temperature and humidity controller（5）, the cabinet（22）Medial surface is provided with insulator（12）, the insulator
（12）Outside is provided with wall bushing（11）, the cabinet（22）Preceding surface middle part is provided with simulation board（6）, the simulation board
（6）Lower section is provided with nameplate（8）, the simulation board（6）Lower side is provided with electromagnetic lock（7）, the electromagnetic lock（7）Side is set
There is operating mechanism（9）, the operating mechanism（9）Rear is provided with limiting fuse（15）, the limiting fuse（15）Rear
It is provided with electrothermal relay（16）, the electrothermal relay（16）Rear is provided with isolation switch（13）, the isolation switch（13）Under
Side is provided with high pressure sensor（14）, the cabinet（22）Preceding lower face is provided with observation window（10）, the observation window（10）
Rear is provided with vacuum contactor（17）, the vacuum contactor（17）Rear is provided with overvoltage protection device（18）, the mistake
Voltage protector（18）Rear is provided with high-tension fuse（19）, the high-tension fuse（19）Rear is provided with voltage transformer
（20）, the voltage transformer（20）Side sets once resonance eliminator（21）.
2. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：The high pressure
Electrification display（4）It is fixed by screws in the cabinet（22）Inside, the high-voltage charge display device（4）For LED liquid crystals
Display screen, the high-voltage charge display device（4）With the microcomputerized controller（2）Electrical connection.
3. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：It is described through walls
Sleeve pipe（11）It is fixed by screws in the cabinet（22）On, the wall bushing（11）Adopt and be made from an insulative material, it is described to wear
Wall sleeve（11）Quantity and position and the insulator（12）Correspond.
4. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：The observation
Window（10）It is embedded in the cabinet（22）On, the observation window（10）It is made of transparent resin or glass.
5. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：The operation
Mechanism（9）Pass through connecting rod and the isolation switch（13）It is connected, the limiting fuse（15）With the electrothermal relay（16）
Electrical connection, the electrothermal relay（16）With the isolation switch（13）Electrical connection.
6. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：The high pressure
Sensor（14）It is connected electrically in the isolation switch（13）With the high-tension fuse（19）Between circuit on, the high-voltage fuse
Disconnected device（19）With the microcomputerized controller（2）Electrical connection.
7. a kind of microcomputer arc extinguishing harmonic elimination according to claim 1 and overvoltage protection, it is characterised in that：It is described excessively electric
Press protector（18）It is fixed by screws in the cabinet（22）Bottom, the overvoltage protection device（18）With the high-voltage fuse
Device（19）Electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721573.2U CN206834741U (en) | 2017-06-21 | 2017-06-21 | A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720721573.2U CN206834741U (en) | 2017-06-21 | 2017-06-21 | A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834741U true CN206834741U (en) | 2018-01-02 |
Family
ID=60776503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720721573.2U Expired - Fee Related CN206834741U (en) | 2017-06-21 | 2017-06-21 | A kind of microcomputer arc extinguishing harmonic elimination and overvoltage protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206834741U (en) |
-
2017
- 2017-06-21 CN CN201720721573.2U patent/CN206834741U/en not_active Expired - Fee Related
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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: 20180102 |