CN207265657U - A kind of electric power network high pressure arc-extinction device - Google Patents
A kind of electric power network high pressure arc-extinction device Download PDFInfo
- Publication number
- CN207265657U CN207265657U CN201721400794.6U CN201721400794U CN207265657U CN 207265657 U CN207265657 U CN 207265657U CN 201721400794 U CN201721400794 U CN 201721400794U CN 207265657 U CN207265657 U CN 207265657U
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- voltage
- arc
- electric power
- power network
- controller
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Abstract
The utility model discloses a kind of electric power network high pressure arc-extinction device; including voltage protector and loaded switch; the lower section of the voltage protector is equipped with split-phase rc absorber; and the lower section of split-phase rc absorber is equipped with voltage transformer; grounding transformer is equipped with the lower section side of the voltage transformer; controller is equipped with one side-lower of the close split-phase rc absorber, the top of the high-pressure vacuum contactor is equipped with capacitance resistance absorber.A kind of electric power network high pressure arc-extinction device described in the utility model; equipped with damping resistance, interior overvoltage protection device and loaded switch; for double power source vacuum switch control circuit; it can prevent series resonance, and arc suppression coil earth, the advantages of grounding through arc can be retained; the advantages of playing low resistance grounding over-voltage again when overvoltage at the same time; manual switch is changed to loaded switch, the reliability for having caught switch-mode regulation high, brings more preferable prospect of the application.
Description
Technical field
High pressure arc-extinction device field is the utility model is related to, more particularly to a kind of electric power network high pressure arc-extinction device.
Background technology
Extinguishing arc overvoltage protection uses relatively broad in distribution network system, when singlephase earth fault occurs for power grid
Afterwards, capacitance current is flowed through in trouble point, and arc suppression coil provides inductive current and compensates, current in the fault point is down to below 10A, have
Beneficial to restriking after preventing arc light zero passage, achieve the purpose that arc extinguishing, reduce the probability that amplitude overvoltage occurs, prevent accident into one
Step expands；Existing high pressure arc-extinction device when in use there are it is certain the drawbacks of, damping resistance be not double power source vacuum switch control
Circuit processed, it is impossible to series resonance is prevented, without interior overvoltage protection device, it is impossible to which enhancing is to Overvoltage suppressing in arc suppression coil
Effect, without loaded switch, the reliability of switch-mode regulation is poor, brings certain influence in actual use, for this reason, we
It is proposed a kind of electric power network high pressure arc-extinction device.
Utility model content
The main purpose of the utility model is that providing a kind of electric power network high pressure arc-extinction device, background can be effectively solved
The problem of in technology.
To achieve the above object, the technical solution that the utility model is taken is：
A kind of electric power network high pressure arc-extinction device, including voltage protector and loaded switch, under the voltage protector
Side is equipped with split-phase rc absorber, and the lower section of split-phase rc absorber is equipped with voltage transformer, under the voltage transformer
Grounding transformer is equipped with square side, controller, and controller are equipped with a side-lower of the close split-phase rc absorber
Top be equipped with high-pressure vacuum contactor, the top of the high-pressure vacuum contactor is equipped with capacitance resistance absorber, the control
The lower end outer surface of device is installed with high-voltage and current-limitation fuse, and the lower end outer surface of high-voltage and current-limitation fuse is installed with
High voltage isolator, the side of the high-voltage and current-limitation fuse are equipped with new arc suppression coil control system, the loaded switch and arc blowout wire
Circle controller is fixedly connected, and the inside inner surface of new arc suppression coil control system is installed with damping resistance, the damping resistance
Lower end outer surface be equipped with interior overvoltage protection device, the inside inner surface of the controller is installed with heat sink, and radiates
The lower end outer surface of piece is equipped with memory module.
Preferably, the quantity of the heat sink and damping resistance is two groups, and heat sink is respectively put down with damping resistance
Row is placed.
Preferably, the lower end outer surface of the controller passes through the lower end outer surface of high-voltage and current-limitation fuse and high_voltage isolation
The upper end outer surface of switch is fixedly connected, and high voltage isolator is a kind of component of PVC material.
Preferably, the new arc suppression coil control system is fixedly mounted on the upper end outer surface of loaded switch, and arc suppression coil control
The outer surface of device processed scribbles anti oxidation layer.
Preferably, a side external surface of the controller is equipped with heat emission hole, and the quantity of heat emission hole is three groups.
Preferably, the outer surface of the grounding transformer scribbles corrosion-resistant coating, and grounding transformer is a kind of alloy material
Component.
Compared with prior art, the utility model has the advantages that：
In the utility model, by the damping resistance of setting, it is double power source vacuum switch control circuit, can prevents from connecting
Resonance, by the setting of interior overvoltage protection device, and arc suppression coil earth, the advantages of grounding through arc can be retained, together
When the advantages of playing low resistance grounding over-voltage again when overvoltage, by the setting of loaded switch, by manual switch more
Loaded switch is changed to, the reliability for having caught switch-mode regulation high, brings more preferable prospect of the application.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of electric power network high pressure arc-extinction device of the utility model.
Fig. 2 is the internal structure schematic diagram of the new arc suppression coil control system of the utility model.
Fig. 3 is the internal structure schematic diagram of the controller of the utility model.
In figure：1st, voltage protector；2nd, split-phase rc absorber；3rd, voltage transformer；4th, grounding transformer；5th, control
Device；6th, high-pressure vacuum contactor；7th, capacitance resistance absorber；8th, high-voltage and current-limitation fuse；9th, high voltage isolator；10th, extinguishing arc
Coil controllers；11st, loaded switch；12nd, damping resistance；13rd, interior overvoltage protection device；14th, heat sink；15th, memory module.
Embodiment
To make the technical means, creative features, achievable purpose and effectiveness that the utility model is realized easy to understand, below
With reference to embodiment, the utility model is expanded on further.
As shown in Figs. 1-3, a kind of electric power network high pressure arc-extinction device, including voltage protector 1 and loaded switch 11, voltage
The lower section of protector 1 is equipped with split-phase rc absorber 2, and the lower section of split-phase rc absorber 2 is equipped with voltage transformer 3, voltage
Grounding transformer 4 is equipped with the lower section side of mutual inductor 3, controller is equipped with a side-lower of split-phase rc absorber 2
5, and the top of controller 5 is equipped with high-pressure vacuum contactor 6, the top of high-pressure vacuum contactor 6 is equipped with capacitance resistance absorber
7, the lower end outer surface of controller 5 is installed with high-voltage and current-limitation fuse 8, and the lower end outer surface of high-voltage and current-limitation fuse 8
High voltage isolator 9 is installed with, the side of high-voltage and current-limitation fuse 8 is equipped with new arc suppression coil control system 10, loaded switch 11
It is fixedly connected with new arc suppression coil control system 10, and the inside inner surface of new arc suppression coil control system 10 is installed with damping resistance
12, the lower end outer surface of damping resistance 12 is equipped with interior overvoltage protection device 13, and the inside inner surface of controller 5 is installed with scattered
Backing 14, and the lower end outer surface of heat sink 14 is equipped with memory module 15.
The quantity of heat sink 14 and damping resistance 12 is two groups, and heat sink 14 with damping resistance 12 is respectively parallel puts
Put；The lower end outer surface of controller 5 passes through outside the lower end outer surface of high-voltage and current-limitation fuse 8 and the upper end of high voltage isolator 9
Surface is fixedly connected, and high voltage isolator 9 is a kind of component of PVC material；New arc suppression coil control system 10 has been fixedly mounted on
The upper end outer surface of load switch 11, and the outer surface of new arc suppression coil control system 10 scribbles anti oxidation layer；The side appearance of controller 5
Face is equipped with heat emission hole, and the quantity of heat emission hole is three groups；The outer surface of grounding transformer 4 scribbles corrosion-resistant coating, and grounding transformer 4
For a kind of component of alloy material.
It should be noted that the utility model is a kind of electric power network high pressure arc-extinction device, when amplitude occurs in power grid
During overvoltage, the voltage protector 1 of installation is devoted oneself to work, and overvoltage is limited in the safe range of insulation of electrical installation permission
Interior, when the Overvoltage Amplitude that power grid occurs is relatively low, split-phase rc absorber 2 works, and absorbs high frequency overvoltage, and equipment is provided
Weak isolating is protected, when single-phase earthing occurs for power grid, three-phase voltage and triangular voltages that controller 5 provides voltage transformer 3
Signal carry out calculating processing, judge ground property and Earth Phase, if failure is intermittent arcing ground, controller 5 is being sentenced
Surely be grounded it is separate after, make the high-pressure vacuum contactor 6 of failure phase close, make network system fast by instable arc grounding
Speed is transformed into stable metallicity and is directly grounded, and faulted phase voltage is reduced to zero, and electric arc disappears, and makes the high pressure vacuum of ground connection again afterwards
Contactor 6 disconnects, and at this moment capacitance resistance absorber 7 in parallel works, and the resume speed and amplitude of fault restriction phase voltage, avoid
Earth point is restriked because of overvoltage, failure vanishes, then it is instantaneous caused by overvoltage is impacted to illustrate this arc-earth faults
Property earth fault, system recover normal operation, high-pressure vacuum contactor 6 disconnect after, again cause barrier mutually occur stablize electric arc
Ground connection, device assert that this failure is permanent earth fault, then close the high-pressure vacuum contactor 6 of failure phase again, etc.
Treat that operator on duty's route selection is handled, new arc suppression coil control system 10 is installed, after singlephase earth fault occurs for power grid, trouble point is flowed through
Capacitance current, arc suppression coil provide inductive current and compensate, be conducive to restrike after preventing arc light zero passage, reach the mesh of arc extinguishing
, the probability that amplitude overvoltage occurs is reduced, prevents accident from further expanding, high voltage isolator 9 is installed, for device
Switching when installing and safeguarding, the access operation when normal of damping resistance 12, high-pressure vacuum contactor 6 is utilized when power grid is grounded
Quickly by its short circuit, to ensure reliable short circuit, short circuit measures, and operation power one are covered using residual voltage and zero-sequence current are double
Cover for direct current, it is another set of for exchange, prevent that protector fuses during short-press, is mounted with that voltage transformer 3 is used for network system
High voltage is converted to the accessible secondary low-voltage of controller 5, and for monitoring and sampling, high-voltage and current-limitation fuse 8 is whole
The back-up protection device of device, for preventing short circuit accident, has the characteristics that to cut-off that rapid, Breaking capacity is big, more practical.
The advantages of basic principle and main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed scope is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of electric power network high pressure arc-extinction device, including voltage protector（1）With loaded switch（11）, it is characterised in that：Institute
State voltage protector（1）Lower section be equipped with split-phase rc absorber（2）, and split-phase rc absorber（2）Lower section be equipped with voltage
Mutual inductor（3）, the voltage transformer（3）Lower section side at be equipped with grounding transformer（4）, the close split-phase resistance-capacitance absorption
Device（2）A side-lower at be equipped with controller（5）, and controller（5）Top be equipped with high-pressure vacuum contactor（6）, the height
Press vacuum contactor（6）Top be equipped with capacitance resistance absorber（7）, the controller（5）Lower end outer surface be fixedly mounted
There is high-voltage and current-limitation fuse（8）, and high-voltage and current-limitation fuse（8）Lower end outer surface be installed with high voltage isolator（9）,
The high-voltage and current-limitation fuse（8）Side be equipped with new arc suppression coil control system（10）, the loaded switch（11）With arc suppression coil
Controller（10）It is fixedly connected, and new arc suppression coil control system（10）Inside inner surface be installed with damping resistance（12）, institute
State damping resistance（12）Lower end outer surface be equipped with interior overvoltage protection device（13）, the controller（5）Inside inner surface consolidate
Dingan County is equipped with heat sink（14）, and heat sink（14）Lower end outer surface be equipped with memory module（15）.
A kind of 2. electric power network high pressure arc-extinction device according to claim 1, it is characterised in that：The heat sink（14）With
Damping resistance（12）Quantity be two groups, and heat sink（14）With damping resistance（12）Respectively it is placed in parallel.
A kind of 3. electric power network high pressure arc-extinction device according to claim 1, it is characterised in that：The controller（5）'s
Lower end outer surface passes through high-voltage and current-limitation fuse（8）Lower end outer surface and high voltage isolator（9）Upper end outer surface fix
Connection, and high voltage isolator（9）For a kind of component of PVC material.
A kind of 4. electric power network high pressure arc-extinction device according to claim 1, it is characterised in that：The Arc Suppression Coil Control
Device（10）It is fixedly mounted on loaded switch（11）Upper end outer surface, and new arc suppression coil control system（10）Outer surface scribble antioxygen
Change layer.
A kind of 5. electric power network high pressure arc-extinction device according to claim 1, it is characterised in that：The controller（5）'s
One side external surface is equipped with heat emission hole, and the quantity of heat emission hole is three groups.
A kind of 6. electric power network high pressure arc-extinction device according to claim 1, it is characterised in that：The grounding transformer
（4）Outer surface scribble corrosion-resistant coating, and grounding transformer（4）For a kind of component of alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400794.6U CN207265657U (en) | 2017-10-26 | 2017-10-26 | A kind of electric power network high pressure arc-extinction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721400794.6U CN207265657U (en) | 2017-10-26 | 2017-10-26 | A kind of electric power network high pressure arc-extinction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207265657U true CN207265657U (en) | 2018-04-20 |
Family
ID=61915985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721400794.6U Expired - Fee Related CN207265657U (en) | 2017-10-26 | 2017-10-26 | A kind of electric power network high pressure arc-extinction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207265657U (en) |
-
2017
- 2017-10-26 CN CN201721400794.6U patent/CN207265657U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20181026 |