CN204835519U - Little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases - Google Patents
Little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases Download PDFInfo
- Publication number
- CN204835519U CN204835519U CN201520583677.2U CN201520583677U CN204835519U CN 204835519 U CN204835519 U CN 204835519U CN 201520583677 U CN201520583677 U CN 201520583677U CN 204835519 U CN204835519 U CN 204835519U
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- Prior art keywords
- electric wire
- wire netting
- control device
- circuit
- resistance
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- 238000013016 damping Methods 0.000 claims abstract description 16
- 230000008033 biological extinction Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases, including current transformer, uncontrollable rectifier circuit, bleeder circuit and damping resistance, current transformer's once side and PPC are connected, and the secondary side is connected with uncontrollable rectifier circuit's input, uncontrollable rectifier circuit's output is connected with the input of bleeder circuit, the output and the damping resistance of bleeder circuit are connected, damping resistance ground connection. The utility model discloses can not loss electric wire netting electric energy when little electric wire netting normal operating, and can the automatic recovery behind the arc extinguishing during to electric wire netting normal operating state, satisfy energy -conserving demand, compare with traditional device simultaneously, the cost is low, technical requirement is not high, maintenance cost hangs down.
Description
Technical field
The utility model relates to a kind of micro-grid connection switch auxiliary arc extinction device with control device of automatically releasing, and belongs to arc extinguishing field when power electronic technology is applied to micro-grid connection or excises fault.
Background technology
The modes such as the useful liquid of existing arc-suppressing method or gas-blast, multi-break blow-out, vacuum extinction, special media arc extinguishing.
Now more common is heavy wool formula arc-control device, but this device consumption steel is large, oil consumption large, and volume is large; Less oil is easily deteriorated, often need overhaul or change oil, and needs a set of oil processing mode, unsuitable frequent operation; Compressed air type complex structure, technique and material requirements high, when cut-offfing, noise is large, and maintenance cycle is long, needs a set of blowing plant; Special media formula technique and seal request are strictly, high to material requirements; Vacuum type arc control device Design and material requires high.Generally speaking the cost of traditional arc-control device high, demand strict technology, maintenance cost is high.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of micro-grid connection switch auxiliary arc extinction device with control device of automatically releasing.
In order to achieve the above object, the technical scheme that the utility model adopts is:
There is the micro-grid connection switch auxiliary arc extinction device of control device of automatically releasing, comprise current transformer, uncontrollable rectification circuit, leadage circuit and damping resistance; The primary side of described current transformer is connected with PPC, secondary side is connected with the input of uncontrollable rectification circuit, the described output of uncontrollable rectification circuit is connected with the input of leadage circuit, and the output of described leadage circuit is connected with damping resistance, described damping resistance ground connection.
Described uncontrollable rectification circuit forms primarily of diode.
Described leadage circuit comprises electric capacity, IGBT and the first resistance; One end of described first resistance is respectively one end of electric capacity and the gate pole connection of IGBT, the collector electrode of described IGBT is connected with the other end of the first resistance, the external damping resistance of emitter of described IGBT, the other end of described electric capacity and the external uncontrollable rectification circuit of the tie point of the first resistance and IGBT collector electrode.
The beneficial effect that the utility model reaches: the utility model can not loss electrical network electric energy when micro-capacitance sensor normally runs, and the normal run time behaviour of electrical network can be automatically restored to after arc extinguishing, meet energy-conservation demand, simultaneously compared with traditional device, cost is low, technical requirement is not high, maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is the circuit diagram of leadage circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.
As shown in Figure 1, there is the micro-grid connection switch auxiliary arc extinction device of control device of automatically releasing, comprise current transformer, uncontrollable rectification circuit, leadage circuit and damping resistance R.
Syndeton is as follows: the primary side of current transformer is connected with PPC, secondary side is connected with the input of uncontrollable rectification circuit, the described output of uncontrollable rectification circuit is connected with the input of leadage circuit, the output of described leadage circuit is connected with damping resistance R, described damping resistance R ground connection.
Above-mentioned uncontrollable rectification circuit forms primarily of diode, and this circuit is an available circuit, does not describe in detail here.
Above-mentioned leadage circuit as shown in Figure 2, comprises electric capacity C, IGBT and the first resistance R1; One end of first resistance R1 is respectively one end of electric capacity C and the gate pole connection of IGBT, the collector electrode of IGBT is connected with the other end of the first resistance R1, the other end of the external damping resistance R of emitter of IGBT, electric capacity C and the external uncontrollable rectification circuit of tie point of the first resistance R1 and IGBT collector electrode.
The course of work of said apparatus is as follows:
After PCC disconnects, electric current I on transmission line increases suddenly, as I>Im (Im is operating current), current transformer produces a higher voltage at secondary side, produces the cut-in voltage that high voltage meets or exceeds IGBT, make IGBT open-minded by uncontrollable rectification circuit at the electric capacity C of leadage circuit, thus electric current flows through from damping resistance R, finally reach shunting action, the electric current in transmission line is reduced fast, reaches arc extinguishing object.When in circuit, electric current is less than Im, IGBT closes automatically, not loss power grid energy.
Said apparatus can not loss electrical network electric energy when micro-capacitance sensor normally runs, and can automatically restore to the normal run time behaviour of electrical network after arc extinguishing, meets energy-conservation demand, and simultaneously compared with traditional device, cost is low, technical requirement is not high, maintenance cost is low.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection range of the present utility model.
Claims (3)
1. there is the micro-grid connection switch auxiliary arc extinction device of control device of automatically releasing, it is characterized in that: comprise current transformer, uncontrollable rectification circuit, leadage circuit and damping resistance;
The primary side of described current transformer is connected with PPC, secondary side is connected with the input of uncontrollable rectification circuit, the described output of uncontrollable rectification circuit is connected with the input of leadage circuit, and the output of described leadage circuit is connected with damping resistance, described damping resistance ground connection.
2. the micro-grid connection switch auxiliary arc extinction device with control device of automatically releasing according to claim 1, is characterized in that: described uncontrollable rectification circuit forms primarily of diode.
3. the micro-grid connection switch auxiliary arc extinction device with control device of automatically releasing according to claim 1, is characterized in that: described leadage circuit comprises electric capacity, IGBT and the first resistance; One end of described first resistance is respectively one end of electric capacity and the gate pole connection of IGBT, the collector electrode of described IGBT is connected with the other end of the first resistance, the external damping resistance of emitter of described IGBT, the other end of described electric capacity and the external uncontrollable rectification circuit of the tie point of the first resistance and IGBT collector electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583677.2U CN204835519U (en) | 2015-08-06 | 2015-08-06 | Little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583677.2U CN204835519U (en) | 2015-08-06 | 2015-08-06 | Little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204835519U true CN204835519U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520583677.2U Withdrawn - After Issue CN204835519U (en) | 2015-08-06 | 2015-08-06 | Little electric wire netting supplementary arc control device of switch that is incorporated into power networks with automatically, controlling means releases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204835519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048430A (en) * | 2015-08-06 | 2015-11-11 | 国家电网公司 | Gird-connected switch auxiliary arc-extinguishing device provided with automatic discharging control device for micro grid |
-
2015
- 2015-08-06 CN CN201520583677.2U patent/CN204835519U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048430A (en) * | 2015-08-06 | 2015-11-11 | 国家电网公司 | Gird-connected switch auxiliary arc-extinguishing device provided with automatic discharging control device for micro grid |
| CN105048430B (en) * | 2015-08-06 | 2017-10-24 | 国家电网公司 | Micro-grid connection switch auxiliary arc extinction device with control device of releasing automatically |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20171024 |