CN207664611U - One kind being based on multi-break high-pressure system current-limiting apparatus - Google Patents
One kind being based on multi-break high-pressure system current-limiting apparatus Download PDFInfo
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- CN207664611U CN207664611U CN201721771594.1U CN201721771594U CN207664611U CN 207664611 U CN207664611 U CN 207664611U CN 201721771594 U CN201721771594 U CN 201721771594U CN 207664611 U CN207664611 U CN 207664611U
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Abstract
The utility model is related to one kind being based on multi-break high-pressure system current-limiting apparatus, including high-speed eddy switch K1, K2, K3, the K4 being sequentially connected in series, the end of incoming cables of the high-speed eddy switch K1 and the end of incoming cables of power distribution cabinet connect, the leading-out terminal of high-speed eddy switch K4 and the leading-out terminal of power distribution cabinet connect, the both ends of the high-speed eddy switch K1 are parallel with current-limiting reactor L1, the both ends of high-speed eddy switch K2 are parallel with current-limiting reactor L2, the both ends of high-speed eddy switch K3 are parallel with current-limiting reactor L3, and the both ends of high-speed eddy switch K4 are parallel with current-limiting reactor L4.It is described in the utility model to be based on multi-break high-pressure system current-limiting apparatus, have many advantages, such as that connecting-disconnecting function is strong, simple in structure, action is quick, the intensity of short circuit can be effectively limited by current-limiting reactor, impact of the short circuit current to electrical equipment is greatly reduced, zero loss of normal operation current-limiting reactor may be implemented.
Description
Technical field
The utility model is related to high-voltage and current-limitation reactor technical fields, and in particular to one kind is limited based on multi-break high-pressure system
Flow device.
Background technology
With the development of economy, with the sharp increase of electric load, the increase of net capacity, transmission of electricity high pressure level is continuous
It improves, while constantly increased short circuit current is increasing to the impact of electric system electrical equipment；Meanwhile existing breaker
Connecting-disconnecting function be difficult to meet and cut-off huge short circuit current, and under so big voltage class, existing breaker it is exhausted
Edge is difficult to meet the requirements.Therefore to solve this great difficult problem, current-limiting reactor is concatenated the mode in circuit and is widely used in
In electric 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
Impact to electrical equipment in electric system, and busbar voltage is maintained, avoid the further expansion of short trouble.But series connection limit
Stream reactor but has many shortcomings, first, huge reactive loss is generated in current-limiting reactor series loop also to user
Cause prodigious financial burden；Secondly, when choosing the reactance value of current-limiting reactor, often there is meet limiting short-circuit current
Requirement after, the contradiction of user terminal brownout under rated current.It is defeated during the long distance delivery of electric system transmission and distribution network
Electric line also will produce induction reactance, substantially equally form a kind of stealthy, potential reactance concatenated in user load circuit
Device equally causes the reduction of user terminal voltage, while having larger reactive loss again.
Utility model content
The purpose of this utility model is to provide one kind being based on multi-break high-pressure system current-limiting apparatus, apparatus structure letter
It is single, safe and reliable, the reactive loss in circuit is reduced while high-pressure system upper flow demand can be met.
To achieve the above object, the utility model uses following technical scheme：High-speed eddy including being sequentially connected in series is opened
K1, K2, K3, K4 are closed, the end of incoming cables of the high-speed eddy switch K1 and the end of incoming cables of power distribution cabinet connect, high-speed eddy switch K4's
The leading-out terminal of leading-out terminal and power distribution cabinet connects, and the both ends of the high-speed eddy switch K1 are parallel with current-limiting reactor L1, high speed whirlpool
The both ends of stream switch K2 are parallel with current-limiting reactor L2, the both ends of high-speed eddy switch K3 are parallel with current-limiting reactor L3, high speed
The both ends of vortex switch K4 are parallel with current-limiting reactor L4.
Further, described high-speed eddy switch K1, K2, K3, K4 are controlled by the controller in power distribution cabinet
It cut-offs.
Further, described high-speed eddy switch K1, K2, K3, K4 are vortex driving vacuum interrupter arc extinguishing breaker.
As shown from the above technical solution, described in the utility model to be based on multi-break high-pressure system current-limiting apparatus, have and opens
The advantages that cutting capacity is strong, simple in structure, action is quick, the intensity of short circuit can be effectively limited by current-limiting reactor, is greatly reduced
Zero loss of normal operation current-limiting reactor may be implemented in impact of the short circuit current to electrical equipment.
Description of the drawings
Fig. 1 is the electrical schematic diagram of the utility model.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, the present embodiment based on multi-break high-pressure system current-limiting apparatus, including the high-speed eddy that is sequentially connected in series
Switch K1, high-speed eddy switch K2, high-speed eddy switch K3 and high-speed eddy switch K4, the end of incoming cables of high-speed eddy switch K1 with
The end of incoming cables of power distribution cabinet connects, and the leading-out terminal of high-speed eddy switch K4 and the leading-out terminal of power distribution cabinet connect, high-speed eddy switch K1
Both ends be parallel with current-limiting reactor L1, the both ends of high-speed eddy switch K2 are parallel with current-limiting reactor L2, high-speed eddy switch
The both ends of K3 are parallel with current-limiting reactor L3, and the both ends of high-speed eddy switch K4 are parallel with current-limiting reactor L4.
The present embodiment, the high-speed eddy switch K1, K2, K3, K4 are vortex driving vacuum interrupter arc extinguishing breaker, high
Speed vortex switch K1, K2, K3, K4 control it by the controller in power distribution cabinet and cut-off.
Operation principle：When short trouble occurs for high-pressure system, controller is immediately to high-speed eddy switch K1, high-speed eddy
Switch K2, high-speed eddy switch K3, high-speed eddy switch K4 distinguish sub-gate signal, by current-limiting reactor L1, current-limiting reactor L2,
Current-limiting reactor L3, current-limiting reactor L4 are all put into；By current-limiting reactor L1, current-limiting reactor L2, current-limiting reactor L3,
Current-limiting reactor L4 can effectively limit the intensity of high-pressure system short circuit current, greatly reduce short trouble to electrical in electric system
The harm of equipment, while can quickly exit current-limiting reactor L1, current-limiting reactor L2, current-limiting reactor after short trouble excision
Device L3, current-limiting reactor L4, compared to current-limiting reactor of directly connecting, capable of effectively solving series connection current-limiting reactor 2, input disappears for a long time
Consume the actual motion problem of a large amount of reactive loss and user terminal brownout.The utility model have it is simple in structure, safe and reliable,
The advantages that acting fast, raising transformer working efficiency and reducing running wastage.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection of the utility model claims book determination
In range.
Claims (3)
1. one kind being based on multi-break high-pressure system current-limiting apparatus, it is characterised in that：Including be sequentially connected in series high-speed eddy switch K1,
K2, K3, K4, the end of incoming cables of the high-speed eddy switch K1 and the end of incoming cables of power distribution cabinet connect, the outlet of high-speed eddy switch K4
End is connect with the leading-out terminal of power distribution cabinet, and the both ends of the high-speed eddy switch K1 are parallel with current-limiting reactor L1, and high-speed eddy is opened
The both ends for closing K2 are parallel with current-limiting reactor L2, the both ends of high-speed eddy switch K3 are parallel with current-limiting reactor L3, high-speed eddy
The both ends of switch K4 are parallel with current-limiting reactor L4.
2. according to claim 1 be based on multi-break high-pressure system current-limiting apparatus, it is characterised in that：The high-speed eddy is opened
Pass K1, K2, K3, K4 control it by the controller in power distribution cabinet and cut-off.
3. according to claim 1 be based on multi-break high-pressure system current-limiting apparatus, it is characterised in that：The high-speed eddy is opened
It is vortex driving vacuum interrupter arc extinguishing breaker to close K1, K2, K3, K4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721771594.1U CN207664611U (en) | 2017-12-18 | 2017-12-18 | One kind being based on multi-break high-pressure system current-limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721771594.1U CN207664611U (en) | 2017-12-18 | 2017-12-18 | One kind being based on multi-break high-pressure system current-limiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664611U true CN207664611U (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721771594.1U Active CN207664611U (en) | 2017-12-18 | 2017-12-18 | One kind being based on multi-break high-pressure system current-limiting apparatus |
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| CN (1) | CN207664611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054741A (en) * | 2017-12-18 | 2018-05-18 | 安徽伊格瑞德电气设备有限公司 | One kind is based on multi-break high-pressure system current-limiting apparatus |
-
2017
- 2017-12-18 CN CN201721771594.1U patent/CN207664611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054741A (en) * | 2017-12-18 | 2018-05-18 | 安徽伊格瑞德电气设备有限公司 | One kind is based on multi-break high-pressure system current-limiting apparatus |
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