CN207200252U - A kind of high reliability high-speed switch type fault current limiter - Google Patents
A kind of high reliability high-speed switch type fault current limiter Download PDFInfo
- Publication number
- CN207200252U CN207200252U CN201720478923.7U CN201720478923U CN207200252U CN 207200252 U CN207200252 U CN 207200252U CN 201720478923 U CN201720478923 U CN 201720478923U CN 207200252 U CN207200252 U CN 207200252U
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- CN
- China
- Prior art keywords
- storage capacitor
- reactor
- current limiter
- fault current
- speed switch
- Prior art date
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Abstract
The utility model provides a kind of high reliability high-speed switch type fault current limiter; including reactor, the reactor both ends shunt voltage protection device, electromagnetic switch; the first storage capacitor, the second storage capacitor that the electromagnetic switch connection is arranged in parallel; one end of the other end of first storage capacitor, the other end of the second storage capacitor while linked reactor, the other end connection supply line transformer of the reactor.A kind of high reliability high-speed switch type fault current limiter described in the utility model, ensure the normal work of current-limiting reactor, improve the reliability of whole fault current limiter.
Description
Technical field
The utility model belongs to failure current limit field, more particularly, to a kind of high reliability high-speed switch type failure current limit
Device.
Background technology
With the development of China's power network, power network scale constantly expands, and short circuit current level is continuously increased, for the peace of power network
Row for the national games, short circuit current need to be any limitation as.High-speed switch type fault current limiter has good effect for limiting short-circuit current,
With quick action, good energy-conserving effect, the advantages that connecting-disconnecting function is big.
Current high-speed switch type failure current limit is usually to set a storage capacitor, is by the storage capacitor after charging
Divide, closing coil energization, so as to realize the switch of switch or closure, reach the purpose of drop-out current.Its shortcoming is：Once electric capacity
Break down, divide-shut brake coil will be caused to fail, reactor can not come into operation, and then can not limiting short-circuit current, after causing
Fruit is serious.
The content of the invention
In view of this, the utility model is directed to a kind of high reliability high-speed switch type fault current limiter, to solve to open
The problem of pass divide-shut brake fails, and current limiter reliability is relatively low.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of high reliability high-speed switch type fault current limiter, including reactor, reactor both ends shunt voltage are protected
Protection unit, electromagnetic switch, the first storage capacitor, the second storage capacitor that the electromagnetic switch connection is arranged in parallel,
One end of the other end of first storage capacitor, the other end of the second storage capacitor while linked reactor, the reactor
Other end connection supply line transformer.
Further, the voltage protection is metal oxide overvoltage protection.
Relative to prior art, a kind of high reliability high-speed switch type fault current limiter described in the utility model have with
Lower advantage：By setting standby storage capacitor, allow the normal divide-shut brake of switch, so as to ensure the normal work of current-limiting reactor
Make, improve the reliability of whole fault current limiter.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the fault current limiter described in the utility model embodiment；
Fig. 2 is the electromagnetic switch structure chart described in the utility model embodiment.
Description of reference numerals：
1- reactors；2- voltage protections；3- electromagnetic switchs；The storage capacitors of 4- first；The storage capacitors of 5- second；
6- supply lines transformer；7- static conductive rods；8- vacuum interrupters；9- static contacts；10- moving contacts；11- moving conductive rods；12-
Bellows；13- excess of stroke devices；14- fixed plates；15- switching windings；16- metal repulsion dish；17- closing coils；18- dynamic iron cores；
19- permanent magnets.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of high reliability high-speed switch type fault current limiter, including reactor 1,1 liang of the reactor
Shunt voltage protection device 2, electromagnetic switch 3 are held, the electromagnetic switch 3 connects the first energy storage electricity being arranged in parallel
Hold the 4, second storage capacitor 5, the other end of first storage capacitor 4, the other end of the second storage capacitor 5 connect reactance simultaneously
One end of device 1, the other end connection supply line transformer 6 of the reactor 1.
It is worth noting that, the voltage protection 2 is metal oxide overvoltage protection.
Concrete operating principle：
Existing electromagnetic switch structure includes：
Static conductive rod 7：Connect static contact 9 and circuit；
Vacuum interrupter 8：Electric arc is extinguished rapidly using the insulation characterisitic of vacuum tube, cut off short-circuit loop and suppress electricity
Stream；
Static contact 9：Fixed contact, connection or disconnecting circuit；
Moving contact 10：Movable contact, connection or disconnecting circuit；
Moving conductive rod 11：Connect moving contact 10 and circuit；
Bellows 12：Activity space is left for moving conductive rod 11；
Excess of stroke device 13：A part of pressure is provided for contact；
Fixed plate 14：For fixed point, closing coil；
Switching winding 15：Separating brake magnet exciting coil, it is powered, is produced with metal repulsion dish 16 downward after sending separating brake instruction
Repulsion；
Metal repulsion dish 16：Metal copper dish, with the repulsion of magnet exciting coil sensing generation up or down, it is dynamic tactile to play promotion
The effect of first 10 movement；
Closing coil 17：Combined floodgate magnet exciting coil, it is powered, is produced with metal repulsion dish 16 upward after sending reclosing command
Repulsion；
Dynamic iron core 18：Movable core, the holding effect together with permanent magnet 19；
Permanent magnet 19：For fixing dynamic iron core 18.
The specific action process of storage capacitor and electromagnetic switch is：Discharged by the storage capacitor after charging,
For point, closing coil be powered, produce pulse current, produce electromagnetic force because inducing vortex in metal repulsion dish 16, metal dish
16 drive transmission conducting rod motion, moving contact 10 is contacted or is separated with static contact 9, so as to reach the purpose of drop-out current.
When short trouble occurs, storage capacitor can be that switching winding 15 is powered, and produce pulse current, metal repulsion dish 16
Middle to produce electromagnetic force because inducing vortex, metal dish 16 drives transmission conducting rod motion, moving contact 10 is divided with static contact 9
From disconnection switch；After short trouble releases, storage capacitor is that closing coil 17 is powered, and produces pulse current, metal repulsion dish 16
Middle to produce electromagnetic force because inducing vortex, metal dish 16 drives transmission conducting rod motion, moving contact 10 is connect with static contact 9
Touch, closure switch.
A kind of high reliability high-speed switch type fault current limiter described in the utility model, sets two in fault current limiter
Individual storage capacitor：First storage capacitor 4 and the second storage capacitor 5.During normal operation, two storage capacitors are in the shape that works
State, power taking is storage capacitor charging from supply line.When short trouble occurs, two storage capacitors can be to divide, close
Brake cable circle provides electric energy, makes switch point, closes a floodgate.In the case where a storage capacitor breaks down, another idle capacity
It can work independently, ensure to divide, closing coil power supply, make the smooth divide-shut brake of switch, so as to improve the reliability of switch.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (2)
- A kind of 1. high reliability high-speed switch type fault current limiter, it is characterised in that：Including reactor (1), the reactor (1) Both ends shunt voltage protection device (2), electromagnetic switch (3), the electromagnetic switch (3) connect first be arranged in parallel Storage capacitor (4), the second storage capacitor (5), the other end of first storage capacitor (4), the second storage capacitor (5) it is another End while one end of linked reactor (1), other end connection supply line's transformer (6) of the reactor (1).
- A kind of 2. high reliability high-speed switch type fault current limiter according to claim 1, it is characterised in that：The voltage Protection device (2) is metal oxide overvoltage protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478923.7U CN207200252U (en) | 2017-05-02 | 2017-05-02 | A kind of high reliability high-speed switch type fault current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720478923.7U CN207200252U (en) | 2017-05-02 | 2017-05-02 | A kind of high reliability high-speed switch type fault current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207200252U true CN207200252U (en) | 2018-04-06 |
Family
ID=61793484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720478923.7U Expired - Fee Related CN207200252U (en) | 2017-05-02 | 2017-05-02 | A kind of high reliability high-speed switch type fault current limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207200252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154609A (en) * | 2017-05-02 | 2017-09-12 | 华北电力大学 | A kind of high reliability high-speed switch type fault current limiter |
-
2017
- 2017-05-02 CN CN201720478923.7U patent/CN207200252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154609A (en) * | 2017-05-02 | 2017-09-12 | 华北电力大学 | A kind of high reliability high-speed switch type fault current limiter |
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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: 20180406 Termination date: 20200502 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |