CN206533122U - A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR - Google Patents
A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR Download PDFInfo
- Publication number
- CN206533122U CN206533122U CN201720198861.4U CN201720198861U CN206533122U CN 206533122 U CN206533122 U CN 206533122U CN 201720198861 U CN201720198861 U CN 201720198861U CN 206533122 U CN206533122 U CN 206533122U
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- current
- current limliting
- isolation switch
- voltage
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- 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.)
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 64
- 238000002955 isolation Methods 0.000 claims abstract description 49
- 238000012423 maintenance Methods 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Abstract
The utility model is related to a kind of high-voltage and current-limitation device based on current limliting zinc oxide FR, including current limliting zinc oxide FR, high pressure quick break fuse FU, high-speed eddy switchs K0, discharge damper RL, and the first isolation switch G1, second isolation switch G2 and the 3rd isolation switch G3, electric discharge damper RL switchs the two ends that current limliting zinc oxide FR is connected in parallel on after both K0 connect with high-speed eddy, high pressure quick break fuse FU is connected in parallel on current limliting zinc oxide FR two ends, current limliting zinc oxide FR end of incoming cables meets the end of incoming cables AL1 of high-voltage and current-limitation device by the first isolation switch G1, current limliting zinc oxide FR leading-out terminal meets the leading-out terminal AL2 of high-voltage and current-limitation device by the second isolation switch G2.The utility model can quickly put into current limliting zinc oxide FR, by current limliting zinc oxide FR can effective limiting short-circuit current intensity, impact of the short circuit current flow to electrical equipment is greatly reduced, while user's terminal voltage is ensured, current limliting zinc oxide FR zero loss can be realized again.
Description
Technical field
The utility model is related to power system current limliting zinc oxide technical field, especially a kind of based on current limliting zinc oxide FR's
High-voltage and current-limitation device.
Background technology
With expanding economy, the sharp increase of electric load, the increase of net capacity, the short circuit current flow constantly increased is to electricity
The impact of Force system electrical equipment is also increasing；Meanwhile, existing breaker has been difficult to cut-off huge short circuit current flow.Therefore it is
This great difficult problem is solved, the mode that current limiting element is concatenated in loop is widely used in power system electrical power trans mission/distribution system.
Though current limiting element series connection in the loop can limiting short-circuit current intensity, reduce short circuit current flow in power system electrically
The impact of equipment, maintains busbar voltage, it is to avoid the further expansion of short trouble.But series connection current limiting element has many deficiencies
Place, first, produces huge reactive loss and very big financial burden is also caused to user in current limiting element series loop；Secondly,
When choosing current limiting element, often exist and meet after the requirement of limiting short-circuit current, user terminal brownout under rated current
Contradiction.During the long distance delivery of power system transmission and distribution network, transmission line of electricity can also produce induction reactance, and similar shape is substantially waited
A kind of element into stealthy, potential concatenation user load loop, equally causes the reduction of user terminal voltage, at the same have again compared with
Big reactive loss.
Utility model content
The purpose of this utility model is to provide a kind of safe and reliable, simple in construction and current limliting thoroughly, can effectively limited
The intensity of short circuit current flow, greatly reduces short circuit current flow and the high-voltage and current-limitation based on current limliting zinc oxide FR of the impact of electrical equipment is filled
Put.
To achieve the above object, the utility model employs following technical scheme：A kind of height based on current limliting zinc oxide FR
Press current-limiting apparatus, including current limliting zinc oxide FR, the high pressure quick break fuse for quick input current limliting zinc oxide FR after system short-circuit
FU, the high-speed eddy switch K0 for cutting off for short trouble backed off after random current limliting zinc oxide FR, for current limliting zinc oxide FR short circuits after
The electric discharge damper RL of dash current is limited, and for service without power-off or changes the first isolation switch G1 of component, the
Two isolation switch G2, the 3rd isolation switch G3, the electric discharge damper RL are connected in parallel on after being connected with high-speed eddy switch both K0
Current limliting zinc oxide FR two ends, the high pressure quick break fuse FU is connected in parallel on current limliting zinc oxide FR two ends, current limliting zinc oxide FR's
End of incoming cables meets the end of incoming cables AL1 of high-voltage and current-limitation device by the first isolation switch G1, and current limliting zinc oxide FR leading-out terminal passes through
Two isolation switch G2 meet the leading-out terminal AL2 of high-voltage and current-limitation device.
An end of the 3rd isolation switch G3 be connected on high-voltage and current-limitation device end of incoming cables AL1 and the first isolation switch G1 it
Between, between another leading-out terminal AL2 for terminating at high-voltage and current-limitation device of the 3rd isolation switch G3 and the second isolation switch G2.
The electric discharge damper RL is composed in parallel by inductance L and resistance R, one end of the electric discharge damper RL and current limliting oxygen
The end of incoming cables for changing zinc FR is connected, and the end of incoming cables that the other end switchs K0 with high-speed eddy is connected.
The high-speed eddy switch K0 is vacuum interrupter arc extinguishing breaker.
The current limliting zinc oxide FR, high pressure quick break fuse FU, high-speed eddy switch K0, electric discharge damper RL, the first isolation
Disconnecting link G1, the second isolation switch G2 and the 3rd isolation switch G3 are installed in power distribution cabinet, and the high-speed eddy switch K0 passes through
Controller in power distribution cabinet controls it to cut-off, the first isolation switch G1, the second isolation switch G2 and the 3rd isolation
Disconnecting link G3 is connected with the operating mechanism in power distribution cabinet, by manually controlling it to cut-off.
As shown from the above technical solution, the utility model can quickly put into current limliting zinc oxide FR, pass through current limliting zinc oxide FR
Can effective limiting short-circuit current intensity, greatly reduce impact of the short circuit current flow to electrical equipment, ensureing user's terminal voltage
Meanwhile, current limliting zinc oxide FR zero loss can be realized again；Meanwhile, by first and second 3 isolation switch G1, G2, G3 avoid because
Interruption maintenance brings economic loss.The features such as the utility model has safe and reliable, simple in construction and thorough tool current limliting.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the present utility model.
Embodiment
As shown in figure 1, a kind of high-voltage and current-limitation device based on current limliting zinc oxide FR, including current limliting zinc oxide FR, for being
Current limliting zinc oxide FR high pressure quick break fuse FU is quickly put into after system short circuit, backed off after random current limliting zinc oxide is cut off for short trouble
FR high-speed eddy switch K0, the electric discharge damper RL for limiting dash current after current limliting zinc oxide FR short circuits, and be used for
Service without power-off or the first isolation switch G1, the second isolation switch G2, the 3rd isolation switch G3, the electric discharge for changing component
Damper RL switchs the two ends that current limliting zinc oxide FR is connected in parallel on after both K0 connect, the high pressure quick break fuse FU with high-speed eddy
Current limliting zinc oxide FR two ends are connected in parallel on, current limliting zinc oxide FR end of incoming cables connects high-voltage and current-limitation device by the first isolation switch G1
End of incoming cables AL1, current limliting zinc oxide FR leading-out terminal meets the leading-out terminal AL2 of high-voltage and current-limitation device by the second isolation switch G2.
As shown in figure 1, an end of the 3rd isolation switch G3 be connected on the end of incoming cables AL1 and first of high-voltage and current-limitation device every
From between disconnecting link G1, another leading-out terminal AL2 for terminating at high-voltage and current-limitation device of the 3rd isolation switch G3 and second isolates
Between disconnecting link G2.The electric discharge damper RL is composed in parallel by inductance L and resistance R, one end of the electric discharge damper RL and limit
The end of incoming cables for flowing zinc oxide FR is connected, and the end of incoming cables that the other end switchs K0 with high-speed eddy is connected.Electric discharge damper RL is used to limit
Current limliting zinc oxide FR processed discharge impact electric current, prevents current limliting zinc oxide FR from being damaged due to excessively stream, makes current limliting zinc oxide FR two
Terminal voltage can be limited in a relatively low level, substantially increase the frequency of current limliting zinc oxide FR input current limliting.
As shown in figure 1, the high-speed eddy switch K0 is vacuum interrupter arc extinguishing breaker.When hair in circuit on power system
Raw short trouble, after short trouble excision, controller controls high-speed eddy to switch K0 to close a floodgate immediately, so that by current limliting zinc oxide FR
Short circuit, realizes normal operation current limliting zinc oxide FR zero loss.The current limliting zinc oxide FR, high pressure quick break fuse FU, high speed whirlpool
Stream switch K0, electric discharge damper RL, the first isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 are installed in and matched somebody with somebody
In electric cabinet, the high-speed eddy switch K0 controls it to cut-off by the controller in power distribution cabinet, first isolation knife
Lock G1, the second isolation switch G2 and the 3rd isolation switch G3 are connected with the operating mechanism in power distribution cabinet, by artificial
Control it to cut-off.Service without power-off is realized by first, second and third isolation switch G1, G2, G3, reduces maintenance repair and failure inspection
The power failure range repaiied, greatly improves the reliability and security of power supply, while avoiding because interruption maintenance brings economic loss.It is high
Quick break fuse FU is pressed to be used for quick fuse during short circuit, high pressure quick break fuse FU fusing, which produces arc voltage, turns on current limliting zinc oxide FR,
Itself produce a larger impedance after current limliting zinc oxide FR conductings, can effective limiting short-circuit current intensity, greatly reduce short circuit
Impact of the electric current to electrical equipment.
Operation principle of the present utility model is：During generation short trouble, high pressure quick break fuse FU is used for fast fast thawing during short circuit
Disconnected, high pressure quick break fuse FU fusing, which produces arc voltage, turns on current limliting zinc oxide FR, and itself one is produced after current limliting zinc oxide FR conductings
Individual larger impedance, can effective limiting short-circuit current intensity, greatly reduce danger of the short trouble to electrical equipment in power system
Evil.After short trouble excision, controller controls high-speed eddy to switch K0 combined floodgates immediately, so that by current limliting zinc oxide FR short circuits, it is real
Now normal operation current limliting zinc oxide FR zero loss.
Claims (5)
1. a kind of high-voltage and current-limitation device based on current limliting zinc oxide FR, it is characterised in that：Including current limliting zinc oxide FR, for system
Current limliting zinc oxide FR high pressure quick break fuse FU is quickly put into after short circuit, for short trouble excision backed off after random current limliting zinc oxide FR
High-speed eddy switch K0, the electric discharge damper RL for limiting dash current after current limliting zinc oxide FR short circuits, and for not
Interruption maintenance or the first isolation switch G1, the second isolation switch G2, the 3rd isolation switch G3 for changing component, the electric discharge resistance
Buddhist nun's device RL switchs the two ends that current limliting zinc oxide FR is connected in parallel on after both K0 connect with high-speed eddy, and the high pressure quick break fuse FU is simultaneously
Current limliting zinc oxide FR two ends are associated in, current limliting zinc oxide FR end of incoming cables connects high-voltage and current-limitation device by the first isolation switch G1
End of incoming cables AL1, current limliting zinc oxide FR leading-out terminal meets the leading-out terminal AL2 of high-voltage and current-limitation device by the second isolation switch G2.
2. the high-voltage and current-limitation device according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：Described 3rd every
An end from disconnecting link G3 is connected between the end of incoming cables AL1 of high-voltage and current-limitation device and the first isolation switch G1, the 3rd isolation knife
Between lock G3 another leading-out terminal AL2 for terminating at high-voltage and current-limitation device and the second isolation switch G2.
3. the high-voltage and current-limitation device according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：The electric discharge resistance
Buddhist nun's device RL is composed in parallel by inductance L and resistance R, one end of the electric discharge damper RL and current limliting zinc oxide FR end of incoming cables phase
Even, the other end is connected with the end of incoming cables that high-speed eddy switchs K0.
4. the high-voltage and current-limitation device according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：The high speed whirlpool
Stream switch K0 is vacuum interrupter arc extinguishing breaker.
5. the high-voltage and current-limitation device according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：The current limliting oxygen
Change zinc FR, high pressure quick break fuse FU, high-speed eddy switch K0, electric discharge damper RL, the first isolation switch G1, the second isolation switch
G2 and the 3rd isolation switch G3 are installed in power distribution cabinet, and the high-speed eddy switch K0 passes through the control in power distribution cabinet
Device controls it to cut-off, and the first isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 are with being arranged on power distribution cabinet
In operating mechanism be connected, by manually controlling it to cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198861.4U CN206533122U (en) | 2017-03-02 | 2017-03-02 | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198861.4U CN206533122U (en) | 2017-03-02 | 2017-03-02 | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206533122U true CN206533122U (en) | 2017-09-29 |
Family
ID=59918069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198861.4U Expired - Fee Related CN206533122U (en) | 2017-03-02 | 2017-03-02 | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206533122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849030A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR |
| CN109586266A (en) * | 2018-12-20 | 2019-04-05 | 国网新疆电力有限公司经济技术研究院 | A kind of safe and efficient electrical equipment high-voltage and current-limitation device |
| CN111948492A (en) * | 2020-08-18 | 2020-11-17 | 合肥工业大学 | High-voltage line fault detection device and detection method thereof |
-
2017
- 2017-03-02 CN CN201720198861.4U patent/CN206533122U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849030A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR |
| CN109586266A (en) * | 2018-12-20 | 2019-04-05 | 国网新疆电力有限公司经济技术研究院 | A kind of safe and efficient electrical equipment high-voltage and current-limitation device |
| CN111948492A (en) * | 2020-08-18 | 2020-11-17 | 合肥工业大学 | High-voltage line fault detection device and detection method thereof |
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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: 20170929 |