CN205791500U - A kind of high capacity and high speed switchgears - Google Patents
A kind of high capacity and high speed switchgears Download PDFInfo
- Publication number
- CN205791500U CN205791500U CN201620428382.2U CN201620428382U CN205791500U CN 205791500 U CN205791500 U CN 205791500U CN 201620428382 U CN201620428382 U CN 201620428382U CN 205791500 U CN205791500 U CN 205791500U
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- current
- limiting reactor
- switchgears
- reactor
- high speed
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- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
This utility model relates to a kind of high capacity and high speed switchgears, including the current-limiting reactor L being arranged in power distribution cabinet, after system short-circuit, quickly put into the Fast Switch with Large Capacity FSR of current-limiting reactor L, and move back control system for quickly throwing of short trouble excision backed off after random current-limiting reactor L.This utility model simple in construction, safe and reliable, this high capacity and high speed switchgears can put into mother at 2ms and protect reactor, want fast more than protecting reactor 15ms switching speed by breaker control mother in the market, the intensity of short circuit can be effectively limited by current-limiting reactor, it is greatly reduced the short circuit current impact to electrical equipment, while ensureing user side voltage, zero loss of properly functioning current-limiting reactor can be realized again.
Description
Technical field
This utility model relates to power system current-limiting reactor technical field, is specifically related to a kind of high capacity and high speed switchgears.
Background technology
Along with expanding economy, along with the sharp increase of electric load, the increase of net capacity, the short circuit current constantly increased is increasing to the impact of power system electrical equipment；Meanwhile, the connecting-disconnecting function of existing chopper is difficult to meet cut-off huge short circuit current.Therefore for solving this great difficult problem, the mode that current-limiting reactor is concatenated in loop is widely used in power system electrical power trans mission/distribution system.Though current-limiting reactor series connection in the loop can limiting short-circuit current intensity, reduce short circuit current to the impact of electrical equipment in power system, and maintain busbar voltage, it is to avoid the further expansion of short trouble.But series connection current-limiting reactor has a lot of weak point, first, produces the financial burden that huge reactive loss also cause the user is the biggest in current-limiting reactor series loop；Secondly, when choosing the reactance value of current-limiting reactor, after often there is the requirement meeting limiting short-circuit current, the contradiction of user side brownout under rated current.During the long distance delivery of power system transmission and distribution network, transmission line of electricity also can produce induction reactance, the most it is equal to the reactor defined in a kind of stealth, potential concatenation user load loop, has caused user side voltage to reduce equally, have again bigger reactive loss simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of high capacity and high speed switchgears, this apparatus structure is simple, esy to use, safe and reliable, substantially reduce the short circuit current impact to electrical equipment, while ensureing user side voltage, zero loss of properly functioning current-limiting reactor can be realized again.
For achieving the above object, this utility model have employed techniques below scheme: includes the current-limiting reactor L being arranged in power distribution cabinet, after system short-circuit, quickly put into the Fast Switch with Large Capacity FSR of current-limiting reactor L, and move back control system for quickly throwing of short trouble excision backed off after random current-limiting reactor L.
Described speed-sensitive switch FSR is connected in parallel on the two ends of current-limiting reactor L, and this Fast Switch with Large Capacity FSR controls it by the controller being arranged in power distribution cabinet and cut-offs.
The described quick throwing system of moving back includes that the Quick eddy switch KO, described Quick eddy switch K0 that are connected in parallel on current-limiting reactor L two ends control it by the controller being arranged in power distribution cabinet and cut-off.
Described Quick eddy switch K0 is vacuum interrupter arc extinguishing chopper.
As shown from the above technical solution, a kind of high capacity and high speed switchgears described in the utility model, simple in construction, safe and reliable, the intensity of short circuit can be effectively limited by current-limiting reactor, it is greatly reduced the short circuit current impact to electrical equipment, while ensureing user side voltage, zero loss of properly functioning current-limiting reactor can be realized again.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further:
As shown in Figure 1, the high capacity and high speed switchgears of the present embodiment, including the current-limiting reactor L being arranged in power distribution cabinet, after system short-circuit, quickly put into the Fast Switch with Large Capacity FSR of current-limiting reactor L, and move back control system for quickly throwing of short trouble excision backed off after random current-limiting reactor L.
This Fast Switch with Large Capacity FSR is connected in parallel on the two ends of current-limiting reactor L, and controls it by the controller being arranged in power distribution cabinet and cut-off.Fast Switch with Large Capacity FSR, when power system is short-circuited fault, is linked to current-limiting reactor L fast stringed in loop, by current-limiting reactor L can the intensity of effective limiting short-circuit current, be greatly reduced the short circuit current impact to electrical equipment.
The quickly throwing of the present embodiment is moved back control system and is made up of the Quick eddy switch K0 being connected in parallel on current-limiting reactor L two ends, and this Quick eddy switch K0 controls it by the controller being arranged in power distribution cabinet and cut-offs.When, after the fault that is short-circuited in circuit on power system, short trouble excision, controller controls Quick eddy switch K0 immediately and closes a floodgate, thus by current-limiting reactor L short circuit, it is achieved zero loss of properly functioning current-limiting reactor L.In the present embodiment, Quick eddy switch K0 is that eddy current drives, vacuum interrupter arc extinguishing chopper.
This utility model is when power system is short-circuited fault, within 2ms, current-limiting reactor L can be put into, intensity by the effective limiting short-circuit current of current-limiting reactor L, it is greatly reduced short trouble to the harm of electrical equipment in power system, simultaneously can be after short trouble excises, quickly exit current-limiting reactor L, compare directly series connection current-limiting reactor L, can effectively solve series connection current-limiting reactor L and put into a large amount of reactive loss of consumption and the actual motion problem of user side brownout for a long time.This utility model has simple in construction, safe and reliable, action is fast, improve transformator work efficiency and reduce the advantages such as running wastage.
Embodiment described above is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (4)
1. a high capacity and high speed switchgears, it is characterized in that: include the current-limiting reactor L being arranged in power distribution cabinet, after system short-circuit, quickly put into the Fast Switch with Large Capacity FSR of current-limiting reactor L, and move back control system for quickly throwing of short trouble excision backed off after random current-limiting reactor L.
High capacity and high speed switchgears the most according to claim 1, it is characterised in that: described Fast Switch with Large Capacity FSR is connected in parallel on the two ends of current-limiting reactor L, and this Fast Switch with Large Capacity FSR controls it by the controller being arranged in power distribution cabinet and cut-offs.
High capacity and high speed switchgears the most according to claim 1, it is characterized in that: the described quick throwing system of moving back includes being connected in parallel on the Quick eddy switch KO at current-limiting reactor L two ends, described Quick eddy switch K0 controls it by the controller being arranged in power distribution cabinet and cut-offs.
High capacity and high speed switchgears the most according to claim 3, it is characterised in that: described Quick eddy switch K0 is vacuum interrupter arc extinguishing chopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428382.2U CN205791500U (en) | 2016-05-12 | 2016-05-12 | A kind of high capacity and high speed switchgears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428382.2U CN205791500U (en) | 2016-05-12 | 2016-05-12 | A kind of high capacity and high speed switchgears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205791500U true CN205791500U (en) | 2016-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428382.2U Expired - Fee Related CN205791500U (en) | 2016-05-12 | 2016-05-12 | A kind of high capacity and high speed switchgears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205791500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849040A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of new FSR zero is lost depth current-limiting apparatus |
| CN106849038A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of self-shield current-limiting apparatus based on Fast Switch with Large Capacity FSR |
-
2016
- 2016-05-12 CN CN201620428382.2U patent/CN205791500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849040A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of new FSR zero is lost depth current-limiting apparatus |
| CN106849038A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of self-shield current-limiting apparatus based on Fast Switch with Large Capacity FSR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High -speed switching device of large capacity Effective date of registration: 20171011 Granted publication date: 20161207 Pledgee: Hefei high tech Company limited by guarantee Pledgor: ANHUI SHANGTU ELECTRIC PROTECTION EQUIPMENT CO., LTD. Registration number: 2017340000271 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181010 Granted publication date: 20161207 Pledgee: Hefei high tech Company limited by guarantee Pledgor: ANHUI SHANGTU ELECTRIC PROTECTION EQUIPMENT CO., LTD. Registration number: 2017340000271 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High -speed switching device of large capacity Effective date of registration: 20181029 Granted publication date: 20161207 Pledgee: Hefei high tech Company limited by guarantee Pledgor: ANHUI SHANGTU ELECTRIC PROTECTION EQUIPMENT CO., LTD. Registration number: 2018340000592 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200421 Granted publication date: 20161207 Pledgee: Hefei high tech Company limited by guarantee Pledgor: ANHUI SHANGTU ELECTRIC POWER PROTECTIVE APPARATUS Co.,Ltd. Registration number: 2018340000592 |
|
| 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: 20161207 Termination date: 20210512 |