CN206116988U - Handcart -type arc extinction device structure - Google Patents
Handcart -type arc extinction device structure Download PDFInfo
- Publication number
- CN206116988U CN206116988U CN201621177961.0U CN201621177961U CN206116988U CN 206116988 U CN206116988 U CN 206116988U CN 201621177961 U CN201621177961 U CN 201621177961U CN 206116988 U CN206116988 U CN 206116988U
- Authority
- CN
- China
- Prior art keywords
- handcart
- arc
- voltage
- fuse
- extinction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a handcart -type arc extinction device structure, including PT and separation device, microcomputer controller, once simulate the tablet, the window is seen to well door, the window is seen to the xiamen, handcart experiment position indicator lamp, handcart operating position pilot lamp, ground connection capacitance current table, the voltmeter, arc extinction switching change over switch, voltage switcher, the data plate, the crank hole, the door electromagnetic lock, supporting insulator, the epoxy cross arm, the knocking gear, high voltage current limiting fuse, vacuum contactor, isolated wheelbarrow, the high -tension fuse, overvoltage protection device, a harmonic elimination ware, voltage transformer. The utility model discloses can be fast, stable, safe operation isolation handcart to safety guarantee arc extinction cabinet and high -pressure system overhaul the operation.
Description
Technical field
This utility model is related to arc-extinction device in electrical network, and in particular to a kind of handcart-type arc-extinction device structure.
Background technology
At present, the currently running code regulation of China, the power system to 3 ~ 35kV neutral point indirect earthings connect
During earth fault, system allows to continue to run with two hours, and such as Jing higher level relevant department approval can also extend.But code is for " single
The concept of phase earth fault " is clearly defined, and such as singlephase earth fault is metallic earthing, and faulted phase voltage is reduced to zero, its
Remaining biphase voltage-to-ground will raise to line voltage UL, thus the electrical equipment of this kind of electrical network such as transformator, voltage/current mutual inductance
The insulation against ground level of device, chopper and cable etc., can meet the requirement born line voltage effect for a long time and do not damage.But
It is, if singlephase earth fault is arc grounding, the phase voltage that generally 3.15 ~ 3.5 times of its overvoltage, in so high mistake
Under voltage continuous action, the accumulation of solid insulation certainly will be caused to damage, in the sound weak link for mutually forming insulation, Jin Erfa
Open up as phase fault accident.
Traditional view thinks that 3 ~ 35kV electrical networks belong to medium voltage distribution network, and internal overvoltage amplitude is not high in such electrical network, institute
With, the principal element for jeopardizing line insulation safety is not internal overvoltage, but atmospheric over-voltage, thus take for a long time
Overvoltage protection measure only for preventing atmospheric over-voltage, technical measures to be only limitted to install various types of spark gaps,
Its protection value is higher, for internal overvoltage does not have restriction effect.
With the development of electrical network, overhead transmission line is progressively replaced by the cable run of solid insulation.As solid insulation hits
There is the arc grounding mistake produced during single-phase intermittent arc earthing in the build-up effect worn, particularly its internal overvoltage, electrical network
Voltage and the ferro-resonance over-voltage for thus exciting, it has also become the one of this kind of electric power netting safe running is big to be threatened.Wherein with single-phase arc
Light grounding surge is the most serious.Arc grounding over-voltage can make voltage transformer that saturation occurs, and excite ferromagnetic resonance, cause electricity
Pressure transformer heavy overload, causes fuse blows of transformer or transformer to burn.As arc grounding over-voltage continues
Time is long, and energy easily more than the ability to bear of spark gap, causes Explosion of on Arrester.
The current country adopts arc extinction cabinet using isolation knife come disjunction and the connection of bus bar, the shortcoming of its its presence mostly
It is：
1st, can only the isolation of manual folding isolation knife be connected with bus, operation easily causes moment resonance, is grounded than relatively hazardous
Etc. phenomenon；
2nd, no remote operation isolation knife function, can only local operation isolation knife function；
3rd, can not realize from dynamic circuit connector separating from knife.
The content of the invention
This utility model is directed to the problems referred to above, there is provided a kind of handcart-type arc-extinction device structure, including PT disconnection device, micro-
Machine controller, once simulation board, middle door observing window, Xiamen observing window, handcart experimental site display lamp, handcart work position instruction
Lamp, earthing capacitance current table, voltmeter, extinguishing arc switching permutator, voltage change-over switch, nameplate, crank way, door electromagnetic lock,
Supports insulative, epoxy cross-arm, knocking gear, high-voltage and current-limitation fuse, vacuum contactor, isolation handcart, high-tension fuse, mistake
Voltage protector, resonance eliminator, a voltage transformer；
Simultaneously disconnection device is arranged on the positive top of arc extinction cabinet to the PT；The PT disconnection device（1）Front sets respectively
There are microcomputerized controller, handcart experimental site display lamp, handcart work position indicator, earthing capacitance current table, voltmeter, extinguishing arc
Switching permutator, voltage change-over switch；Board, middle door observing window, nameplate, the crank way of once simulating is set from top to bottom respectively
Put middle part positive in arc extinction cabinet；The Xiamen observing window, door electromagnetic lock are separately positioned on the positive bottom of arc extinction cabinet；
Supports insulative is arranged on the upper left side inside arc-extinction device；The isolation handcart is arranged in arc-extinction device
The upper right side in portion；Supports insulative is arranged on the middle side inside arc-extinction device；The knocking gear is arranged on epoxy cross-arm
Upper left side；The high-voltage and current-limitation fuse is arranged on below knocking gear；The vacuum contactor is arranged on high-voltage and current-limitation fusing
Below device；The high-tension fuse is arranged on below isolation handcart；The overvoltage protection device is arranged on below high-tension fuse；
The overvoltage protection device connection high-tension fuse and a resonance eliminator；Resonance eliminator and voltage transformer difference
The lower right being arranged on inside arc-extinction device.
Advantage of the present utility model：
Arc grounding is rapidly converted into metallic earthing, is thoroughly disappeared when system occurs arc grounding by this utility model
Except arc grounding over-voltage, change, thus alternative traditional PT cabinets, according to user's need
The function of the PT cabinets such as harmonic elimination, PT switchings can be increased, in addition, can also be equipped with built-in route selection.Above-mentioned functions are caused to have possessed and are disappeared
The effect of arc, harmonic elimination, PT switchings and route selection, due to one-machine-multi-function, has saved the space of live preciousness.And using intelligence isolation
Handcart instead of the isolation knife in traditional arc-extinction device, separate from knife function with manually and automatically closing, safe and reliable.
Traditional isolation knife is replaced using isolation handcart, to when faulty in arc extinction cabinet or maintenance, and needs division to isolate
The automatic disjunction on the spot of arc extinction cabinet master controller electric pulse Interface Controller handcart in the case of handcart, can be passed through；Can also lead to
Cross the manual division of crank of handcart；When far controlling, can realize carrying out closing a point operation to isolating handcart by backstage.Close after dividing,
There is corresponding auxiliary node to send reliable alarm signal.
This utility model can quickly, stable, the operation isolation handcart of safety, so as to safety guarantee arc extinction cabinet and high-pressure system
Inspection travel.
In addition to objects, features and advantages described above, this utility model also has other purposes, feature and excellent
Point.Below with reference to figure, this utility model is described in further detail.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model.
Fig. 1 is the positive structure schematic of the handcart-type arc-extinction device structure of this utility model embodiment；
Fig. 2 is the internal structure schematic diagram of the handcart-type arc-extinction device structure of this utility model embodiment.
Reference：
1 be PT disconnection device, 2 be microcomputerized controller, 3 for once simulate board, 4 be middle door observing window, 5 be that Xiamen is seen and regarded
Window, 6 be handcart experimental site display lamp, 7 be handcart work position indicator, 8 be earthing capacitance current table, 9 be voltmeter, 10
For extinguishing arc switching permutator, 11 be voltage change-over switch, 12 be nameplate, 13 be crank way, 14 be door electromagnetic lock, 15 for support
Insulator, 16 be epoxy cross-arm, 17 be knocking gear, 18 be high-voltage and current-limitation fuse, 19 be vacuum contactor, 20 for isolation
Handcart, 21 be high-tension fuse, 22 be overvoltage protection device, 23 be resonance eliminator, 24 be voltage transformer.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit this utility model.
With reference to Fig. 1 and Fig. 2, a kind of handcart-type arc-extinction device structure as depicted in figs. 1 and 2, including PT disconnection device
1st, microcomputerized controller 2, once simulation board 3, middle door observing window 4, Xiamen observing window 5, handcart experimental site display lamp 6, wheeler
Make position indicator 7, earthing capacitance current table 8, voltmeter 9, extinguishing arc switching permutator 10, voltage change-over switch 11, nameplate
12nd, crank way 13, door electromagnetic lock 14, supports insulative 15, epoxy cross-arm 16, knocking gear 17, high-voltage and current-limitation fuse 18, true
Empty catalyst 19, isolation handcart 20, high-tension fuse 21, overvoltage protection device 22, resonance eliminator 23, a voltage transformer 24；
Simultaneously disconnection device 1 is arranged on the positive top of arc extinction cabinet to the PT；The PT is simultaneously respectively equipped with 1 front of disconnection device
Microcomputerized controller 2, handcart experimental site display lamp 6, handcart work position indicator 7, earthing capacitance current table 8, voltmeter 9,
Extinguishing arc switching permutator 10, voltage change-over switch 11；It is described once to simulate board 3, middle door observing window 4, nameplate 12, crank way 13
The positive middle part of arc extinction cabinet is separately positioned on from top to bottom；The Xiamen observing window 5, door electromagnetic lock 14 are separately positioned on arc extinction cabinet
Positive bottom；
Supports insulative 15 is arranged on the upper left side inside arc-extinction device；The isolation handcart 20 is arranged on extinguishing arc dress
Put the upper right side of inside；Supports insulative 15 is arranged on the middle side inside arc-extinction device；The knocking gear 17 is arranged on
16 upper left side of epoxy cross-arm；The high-voltage and current-limitation fuse 18 is arranged on below knocking gear 17；The vacuum contactor 19 sets
Put below high-voltage and current-limitation fuse 18；The high-tension fuse 21 is arranged on below isolation handcart 20；The overvoltage protection
Device 22 is arranged on below high-tension fuse 21；The overvoltage protection device 22 connects high-tension fuse 21 and a resonance eliminator 23；
Resonance eliminator 23 and voltage transformer 24 are separately positioned on the lower right inside arc-extinction device.
Microcomputerized controller 2 is read from 24 collection voltages signal of voltage sensor from high-voltage and current-limitation fuse 18, isolation handcart 20
The signal of state is taken, the running status of fuse failure and isolation handcart is judged, master controller 2 controls vacuum using electric impulse signal
The action protection arc light function of catalyst 20.
The operation principle of arc-extinction device of the present utility model：When it is faulty in arc extinction cabinet or maintenance when, and need division every
The automatic disjunction on the spot of arc extinction cabinet master controller electric pulse Interface Controller handcart in the case of handcart, can be passed through；Can also
By the manual division of the crank of handcart；When far controlling, can realize carrying out closing a point operation to isolating handcart by backstage.Close and divide
Afterwards, corresponding auxiliary node sends reliable alarm signal.
This utility model replaces traditional isolation knife using isolation handcart, to when faulty in arc extinction cabinet or maintenance, and needs
On the spot automatic point of arc extinction cabinet master controller electric pulse Interface Controller handcart in the case of wanting division isolation handcart, can be passed through
It is disconnected；The manual division of crank of handcart can also be passed through；When far controlling, can realize carrying out closing a point behaviour to isolating handcart by backstage
Make.Close after dividing, have corresponding auxiliary node to send reliable alarm signal.
This utility model can quickly, stable, the operation isolation handcart of safety, so as to safety guarantee arc extinction cabinet and high-pressure system
Inspection travel.
Arc grounding is rapidly converted into metallic earthing, is thoroughly disappeared when system occurs arc grounding by this utility model
Except arc grounding over-voltage, change, thus alternative traditional PT cabinets, according to user's need
The function of the PT cabinets such as harmonic elimination, PT switchings can be increased, in addition, can also be equipped with built-in route selection.Above-mentioned functions are caused to have possessed and are disappeared
The effect of arc, harmonic elimination, PT switchings and route selection, due to one-machine-multi-function, has saved the space of live preciousness.And using intelligence isolation
Handcart instead of the isolation knife in traditional arc-extinction device, separate from knife function with manually and automatically closing, safe and reliable.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (1)
1. a kind of handcart-type arc-extinction device structure, it is characterised in that including PT and disconnection device（1）, microcomputerized controller（2）, one
Secondary simulation board（3）, middle door observing window（4）, Xiamen observing window（5）, handcart experimental site display lamp（6）, handcart operating position refers to
Show lamp（7）, earthing capacitance current table（8）, voltmeter（9）, extinguishing arc switching permutator（10）, voltage change-over switch（11）, inscription
Board（12）, crank way（13）, door electromagnetic lock（14）, supports insulative son（15）, epoxy cross-arm（16）, knocking gear（17）, high pressure
Limiting fuse（18）, vacuum contactor（19）, isolation handcart（20）, high-tension fuse（21）, overvoltage protection device（22）, one
Secondary resonance eliminator（23）, voltage transformer（24）；
The PT disconnection device（1）It is arranged on the positive top of arc extinction cabinet；The PT disconnection device（1）Front is respectively equipped with
Microcomputerized controller（2）, handcart experimental site display lamp（6）, handcart work position indicator（7）, earthing capacitance current table（8）、
Voltmeter（9）, extinguishing arc switching permutator（10）, voltage change-over switch（11）；It is described once to simulate board（3）, middle door observing window
（4）, nameplate（12）, crank way（13）The positive middle part of arc extinction cabinet is separately positioned on from top to bottom；The Xiamen observing window（5）、
Door electromagnetic lock（14）It is separately positioned on the positive bottom of arc extinction cabinet；
Supports insulative（15）The upper left side being arranged on inside arc-extinction device；The isolation handcart（20）It is arranged on extinguishing arc dress
Put the upper right side of inside；Supports insulative（15）The middle side being arranged on inside arc-extinction device；The knocking gear（17）If
Put in epoxy cross-arm（16）Upper left side；The high-voltage and current-limitation fuse（18）It is arranged on knocking gear（17）Lower section；The vacuum
Catalyst（19）It is arranged on high-voltage and current-limitation fuse（18）Lower section；The high-tension fuse（21）It is arranged on isolation handcart（20）Under
Side；The overvoltage protection device（22）It is arranged on high-tension fuse（21）Lower section；The overvoltage protection device（22）Connection high pressure
Fuse（21）With a resonance eliminator（23）；Resonance eliminator（23）And voltage transformer（24）It is separately positioned on extinguishing arc dress
Put the lower right of inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177961.0U CN206116988U (en) | 2016-11-03 | 2016-11-03 | Handcart -type arc extinction device structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177961.0U CN206116988U (en) | 2016-11-03 | 2016-11-03 | Handcart -type arc extinction device structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116988U true CN206116988U (en) | 2017-04-19 |
Family
ID=58524915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621177961.0U Active CN206116988U (en) | 2016-11-03 | 2016-11-03 | Handcart -type arc extinction device structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116988U (en) |
-
2016
- 2016-11-03 CN CN201621177961.0U patent/CN206116988U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103023000B (en) | Grid current limiting device and grid current limiting device and grid current limiting system | |
| CN213484514U (en) | Active intervention type arc suppression device for single-phase earth fault treatment | |
| CN203180518U (en) | Intelligent switch arc-extinguishing and overvoltage-protecting device | |
| CN203895978U (en) | Neutral ground protection system used for medium-voltage power grid | |
| CN203180517U (en) | Microcomputer arc-extinguishing, harmonic-eliminating and overvoltage-protecting device | |
| CN104518506A (en) | Arc suppresser allowing distinguishing of intra-station arc grounding, extra-station grounding and motor stator arc grounding | |
| CN104868461A (en) | Intelligent switch arc-extinguishing and overvoltage-protecting device | |
| CN202856318U (en) | Lightning protection structure for counterattack current division of transformer | |
| CN206116988U (en) | Handcart -type arc extinction device structure | |
| CN202712836U (en) | Grounded-neutral system | |
| CN205646795U (en) | Intelligence PT cabinet | |
| CN201774233U (en) | Novel protection device special for low voltage generator | |
| CN204884829U (en) | Transformer core multiple spot earth fault discharge impact ware | |
| CN203660531U (en) | Novel intelligent arc-extinguishing and over-voltage protection device | |
| CN205945048U (en) | Three -phase combined type over -voltage protector | |
| CN202696141U (en) | Arc-extinction resonance-elimination device | |
| CN206452110U (en) | A kind of overvoltage inhibiting apparatus | |
| CN204030580U (en) | A kind of overvoltage inhibiting apparatus with small current line selection | |
| CN201388009Y (en) | Central isolated handcart type arc extinction, harmonic elimination and route selection device | |
| CN201387999Y (en) | Central high-low cabinet type intelligent arc extinction, harmonic elimination and route selection device | |
| CN212875237U (en) | Armored movable type rapid arc extinction equipment | |
| CN206060185U (en) | Intelligent grid grounding comprehensive protecting device | |
| CN219760626U (en) | Explosion-proof overvoltage protector | |
| CN105870906A (en) | Intelligent switch arc extinction and overvoltage protection device | |
| CN209282645U (en) | Protection type high pressure compensation cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |