CN206180580U - Short circuit fault current limiter - Google Patents
Short circuit fault current limiter Download PDFInfo
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- CN206180580U CN206180580U CN201621181330.6U CN201621181330U CN206180580U CN 206180580 U CN206180580 U CN 206180580U CN 201621181330 U CN201621181330 U CN 201621181330U CN 206180580 U CN206180580 U CN 206180580U
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- current
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- trigger switch
- side winding
- breaker
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Abstract
The utility model provides a short circuit fault current limiter, include: circuit breaker CB1, transfer current -limiting unit and current detection unit. Current detection unit and circuit breaker CB1 series connection, circuit breaker CB1 inserts among the electric power system line after the current -limiting unit connects in parallel with shifting, the output and the control end that shifts the current -limiting unit of current detection unit are connected, the current detection unit detects the fault current who flows past circuit breaker CB1 branch road under the short -circuit fault operating mode to trigger shift the current -limiting unit in corresponding trigger switch switch on, make the disconnection of circuit breaker CB1, in the vice limit winding series connection access system circuit of coupling reactance ware, can restrict fault current's amplitude fast, reduce the impact of fault current to the system.
Description
Technical field
The utility model belongs to current limiter field, limits more particularly, to a kind of short trouble based on mutual reactor
Stream device.
Background technology
In recent years, with the fast development of power system, system short-circuit levels of current is sharply increased, short circuit current level
Is continuously increased and electrical network is caused serious consequence, constrain the development of power system.Therefore, it is necessary to take effective measures
Limit short-circuit current.
Fault current limiter can be limited effectively short in electrical network as a kind of technical scheme of restriction short-circuit current
Road levels of current.Wherein fault current limiter has advantages below：On the one hand, the various high-voltage electrical equipments such as breaker can be mitigated
Dynamic, thermally-stabilised burden, it is ensured that the safety and stablization operation of electrical network；On the other hand, can significantly reduce and electric network composition is set
Meter capacity.Therefore research function admirable, the New Fault Current Limiter of economical rationality have important practical significance and using value.
At present existing fault current limiter mainly has following several：(1) current-limiting reactor is sealed in into system, but is sealed in
Inductance can increase the impedance that system is normally run, and affect system transmission capacity and system run all right.(2) induction type superconduction limit
Stream device, but the hidden danger for avoiding transformer from bearing excessive short circuit current and magnetic flux saturation is needed during current limliting.(3) solid-state limit
Stream device：Switching mode solid-state current limiter, but the program is relatively costly, while claimed circuit has the corresponding speed being exceedingly fast；
Mode of resonance solid-state current limiter, but the program introduces inductance, capacity cell, what the system that increased produced vibration and overvoltage can
Can property.(4) arc current transfevent current limiter, but using current-limiting resistance come fault current limiting in the program, in current limliting work
There are problems that resistance heating under condition.Its application in systems in practice is limited due to many disadvantages with upper flow scheme.
Utility model content
For the defect of prior art, the utility model proposes a kind of short-circuit fault current limiter, its object is to reduce
The duration of big fault current, reduce impact of the fault current to system, increase the reliability cut-off, reduce device into
This.
The utility model provides a kind of short-circuit fault current limiter, including：Breaker CB1, transfer flow-restriction and electric current
Detector unit；The current detecting unit is connected in series with breaker CB1, the breaker CB1 and the transfer flow-restriction
Access after parallel connection in circuit on power system, the output end of current detecting unit is connected with the control end of transfer flow-restriction.It is described
The fault current of breaker CB1 branch roads is flow through in current detecting unit detection under short trouble operating mode, and triggers the transfer limit
The trigger switch conducting of stream unit.
Further, the transfer flow-restriction can be realized using scheme a or scheme b.Scheme a includes：First preliminary filling
Electric capacity C1, the second recharged capacitance C2, the first trigger switch K1, the second trigger switch K2 and mutual reactor；The coupling
The primary side winding of reactor has the first tap and the second tap, the vice-side winding of the mutual reactor and the open circuit
Device CB1 is in parallel.First tap is sequentially connected in series first trigger switch K1 and the first recharged capacitance C1；
Second tap is sequentially connected in series second trigger switch K2 and the second recharged capacitance C2.
Further, when be short-circuited failure when, the side of the fault current detected by the current detecting unit
To the first trigger switch K1 or the second trigger switch K2 are turned in trigger method a, make mutual reactor vice-side winding produce high frequency
Oscillating current, and oscillating current amplitude exceedes system failure current amplitude.
Further, according to capacitance parameter in system short-circuit fault electric current Proper Match scheme a and mutual reactor
Parameter, mainly includes：First recharged capacitance C1, the capacitance of the second recharged capacitance C2 and charging voltage, the first tap,
The change of the second tap and vice-side winding when parameter such as coefficient of coup.
Scheme b includes：3rd recharged capacitance C3, the 3rd trigger switch K3 and mutual reactor；The mutual reactor
Primary side winding be sequentially connected in series the 3rd trigger switch K3 and the 3rd recharged capacitance C3, the mutual reactor
Vice-side winding it is in parallel with the breaker CB1.
Further, when be short-circuited failure when, the fault current detected by the current detecting unit is triggered
3rd trigger switch K3 in scheme b, makes mutual reactor vice-side winding produce high frequency oscillating current, and oscillating current amplitude exceedes
System failure current amplitude.
Further, according to capacitance parameter and mutual reactor in the short-circuit current Proper Match scheme b of system
Parameter, main capacitance and charging voltage, mutual reactor former secondary no-load voltage ratio and coupled systemes including the 3rd recharged capacitance C3
The parameters such as number, make the high frequency oscillating current and the short-circuit current for flowing through breaker CB1 of the generation of mutual reactor vice-side winding
Produce zero crossing.
Further, when be short-circuited failure when, the control signal exported by the current detecting unit triggers institute
The first trigger switch K1 or the conducting of the second trigger switch K2 are stated, makes mutual reactor vice-side winding produce high frequency oscillating current, and
Oscillating current amplitude exceedes system failure current amplitude.
Further, the transfer flow-restriction includes：3rd recharged capacitance C3, the 3rd trigger switch K3 and coupling
Reactor；The primary side winding of the mutual reactor is sequentially connected in series the 3rd trigger switch K3 and the 3rd precharge
Electric capacity C3, the vice-side winding of the mutual reactor and the breaker CB1 branch circuit parallel connections.
Further, when be short-circuited failure when, the control signal exported by the current detecting unit triggers institute
The conducting of the 3rd trigger switch K3 is stated, makes mutual reactor vice-side winding produce high frequency oscillating current, and oscillating current amplitude exceedes
System failure current amplitude.
Further, according to the size and Orientation of short-circuit current, matching transfer flow-restriction in capacitance parameter with
The parameter of mutual reactor, makes the high frequency oscillating current and the short trouble for flowing through breaker CB1 of mutual reactor vice-side winding
Electric current produces zero crossing.
Further, in the case where other specification is constant, by increasing the first recharged capacitance C1, the second precharge
The capacitance and charging voltage of electric capacity C2, increases the coefficient of coup of the first tap, the second tap and vice-side winding, improves and turns
Move the high frequency oscillating current amplitude of mutual reactor vice-side winding in flow-restriction.
Further, in the case where other specification is constant, by or increase the 3rd recharged capacitance C3 capacitance
And charging voltage, increase the coefficient of coup of mutual reactor, improve the height of mutual reactor vice-side winding in transfer flow-restriction
Frequency vibration swings current amplitude.
The utility model has advantages below：
(1) in normal conditions, system power flows through breaker CB1 branch roads, and running wastage is little, and current limiter is basic to system
Without impact.
(2) under short trouble operating mode, if transfer flow-restriction adopts scheme a, detected according to current detecting unit
Fault current direction, disconnect breaker CB1 by triggering the conducting of the first trigger switch K1 or the second trigger switch K2,
The series connection of mutual reactor vice-side winding is accessed in system line, is capable of the amplitude of quick fault current limiting, reduction fault current
Impact to system.
(3) under short trouble operating mode, if transfer flow-restriction adopts scheme b, by triggering the 3rd trigger switch K3
Conducting make breaker CB1 branch roads disconnect, mutual reactor vice-side winding series connection access system line in, can quickly limit therefore
The amplitude of barrier electric current, reduces impact of the fault current to system.
Description of the drawings
A kind of theory diagram of short-circuit fault current limiter that Fig. 1 is provided for the utility model.Wherein 1 is transfer current limliting list
Unit, 2 is current detecting unit.
Fig. 2 is that schematic diagram of the flow-restriction using scheme a is shifted in a kind of short-circuit fault current limiter of the present utility model.C1
For the first recharged capacitance, C2 is the second recharged capacitance, and K1 is the first trigger switch, and K2 is the second trigger switch, and coupling is electric
Anti- device is made up of primary side winding and vice-side winding, and wherein primary side winding is made up of the first tap and the second tap.Fig. 2 transfers
Move flow-restriction terminals A, B to be connected with terminals A, B in Fig. 1 respectively.Wherein, 3 is mutual reactor, and 31 is the first tap
31,32 is the second tap 32；
Fig. 3 is that schematic diagram of the flow-restriction using scheme b is shifted in a kind of short-circuit fault current limiter of the present utility model.C3
For the 3rd recharged capacitance, K3 is the 3rd trigger switch.Shift in Fig. 3 flow-restriction terminals A, B respectively with terminals in Fig. 1
A, B are connected.
Fig. 4 is that a kind of short-circuit fault current limiter of the present utility model applies the schematic diagram in power system, G to be infinity
System, T is transformer, and CB2, CB3 are line-breaker.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
The utility model is specifically related to a kind of electric current transfevent event based on the quick fault current limiting of mutual reactor energy
Barrier current limiter.Fig. 1 shows the theory diagram of short-circuit fault current limiter, and Fig. 2 shows and shift in short-circuit fault current limiter current limliting
Unit 1 adopts the physical circuit figure of scheme a, Fig. 3 to show and shift in short-circuit fault current limiter flow-restriction 1 using scheme b
Physical circuit figure.For convenience of description, the part related to the utility model embodiment is illustrate only, details are as follows：
The utility model provides short-circuit fault current limiter, including：Breaker CB1, transfer flow-restriction 1 and current detecting
Unit 2.Current detecting unit 2 is connected in series with breaker CB1, and after breaker CB1 and the transfer parallel connection of flow-restriction 1 electric power is accessed
In system line.The output end of current detecting unit 2 is connected with the control end of transfer flow-restriction 1, opens accordingly for triggering
Close conducting.
In the utility model embodiment, transfer flow-restriction 1 can be realized using scheme a or scheme b.
Scheme a includes：First recharged capacitance C1, the second recharged capacitance C2, the first trigger switch K1, the second triggering is opened
Close K2 and mutual reactor 3.Wherein, mutual reactor 3 includes primary side winding and vice-side winding, and primary side winding is respectively by first point
The tap 32 of joint 31 and second is constituted.The recharged capacitance C1 of first tap 31 and first, the first trigger switch K1 according to
It is secondary to be connected in series；Second tap 32 is sequentially connected in series with the second recharged capacitance C2, the second trigger switch K2, coupling
The vice-side winding of reactor 3 is connected in parallel with breaker CB1.
When systems are functioning properly, the first trigger switch K1 and the second trigger switch K2 are off, breaker CB1
In closure state, system power flows through breaker CB1.
When system is short-circuited failure, short circuit current increases sharply, when threshold value of the short circuit current more than setting, open circuit
Device CB1 contacts separately and arcing, when contact open to necessarily open away from after, detected according to current detecting unit 2 and flow through breaker
The direction of short-circuit current in CB1, triggers corresponding first trigger switch K1 or the conducting of the second trigger switch K2, shifts current limliting
Unit 1 produces high frequency reversing the current of the amplitude higher than fault current amplitudes, and reversing the current is superimposed upon on breaker CB1, forms " people
Work current zero " is so as to extinguishing electric arc.Short-circuit current is transferred to the vice-side winding of mutual reactor 3 from breaker CB1 branch roads
Branch road on, realize failure current limit.
When it is positive to detect short-circuit current, i.e., identical with the direction of I in Fig. 1, breaker CB1 starts separating brake simultaneously
Produce electric arc, when breaker CB1 contacts be separated into necessarily open away from when, make the first trigger switch K1 turn on, the first recharged capacitance
C1 is discharged by the first tap of primary side winding 31 of mutual reactor 3, and on the vice-side winding of mutual reactor 3 higher-order of oscillation is formed
Electric current, this high frequency oscillating current is superimposed upon on the fault current for flowing through breaker CB1 and produces current zero, and breaker CB1 is in electricity
Blow-out at stream zero point disconnects.
When detect short-circuit current for it is reverse when, i.e., with Fig. 1 I it is in opposite direction, breaker CB1 starts separating brake simultaneously
Produce electric arc, when breaker CB1 contacts be separated into necessarily open away from when, make the second trigger switch K2 turn on, the second recharged capacitance
C2 is discharged by the second tap of primary side winding 32 of mutual reactor 3, and on the vice-side winding of mutual reactor 3 higher-order of oscillation is formed
Electric current, this high frequency oscillating current is superimposed upon on the fault current for flowing through breaker CB1 and produces current zero, and breaker CB1 is in electricity
Blow-out at stream zero point disconnects.
Scheme b includes：3rd recharged capacitance C3, the 3rd trigger switch K3 and mutual reactor 3, the mutual reactor
3 primary side winding is sequentially connected in series the 3rd trigger switch K3 and the 3rd recharged capacitance C3, the coupling reactance
The vice-side winding of device 3 is in parallel with the breaker CB1.
When systems are functioning properly, the 3rd trigger switch K3 disconnects, and breaker CB1 is in closure state, system power stream
Cross breaker CB1.
When system is short-circuited failure, short circuit current increases sharply, when threshold value of the short circuit current more than setting, open circuit
Device CB1 contacts separately and arcing, when contact open to necessarily open away from after, triggering the 3rd trigger switch K3 conducting.
When it is positive to detect short-circuit current, i.e., identical with the direction of I in Fig. 1, transfer flow-restriction 1 produces width
Value is higher than the high frequency oscillating current of fault current amplitudes, and reversing the current is superimposed upon on breaker CB1, is formed " artificial current zero "
So as to extinguish electric arc.Short-circuit current is transferred on the branch road of the vice-side winding of mutual reactor 3 from breaker CB1 branch roads, real
Existing failure current limit.
When it is reverse to detect short-circuit current, i.e., with opposite direction, the transfer generation width of flow-restriction 1 of I in Fig. 1
Value is superimposed upon breaker CB1 higher than the high frequency oscillating current of fault current amplitudes using second half-wave current of oscillating current
So as to extinguish electric arc, short-circuit current is transferred to mutual reactor 3 to upper formation " artificial current zero " from breaker CB1 branch roads
On the branch road of vice-side winding, failure current limit is realized.
In the utility model embodiment, mutual reactor 3 can be hollow coupling reactor 3 or iron core mutual reactor 3.
Wherein shift reactor primary side winding in scheme a of flow-restriction 1 to be made up of the first tap 31 and the second tap 32, according to being
System actual condition, the first tap 31 and the second tap 32 can be connected to the same terminals of the primary side winding of mutual reactor 3
Or different terminals.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.It should be appreciated that specific embodiment described herein is only to explain the utility model,
It is not used to limit the utility model.
The utility model is related to a kind of short-circuit fault current limiter, under short trouble operating mode, can quickly fault restriction electricity
The amplitude of stream, reduces impact of the fault current to system.
For the short-circuit fault current limiter that further description the utility model embodiment is provided, in conjunction with accompanying drawing and tool
Body Examples detail is as follows：
The schematic diagram of a kind of short-circuit fault current limiter that Fig. 1 is provided for the utility model, mainly by breaker CB1, transfer
Flow-restriction 1 and the part of current detecting unit 2 three are constituted.
Breaker CB1：In normal conditions, by system nominal current, running wastage is little.
Current detecting unit 2：Under short trouble operating mode, detection flow through breaker CB1 branch roads fault current size and
Direction, and by signal transmission to the control end for shifting trigger switch in flow-restriction 1.
Transfer flow-restriction 1：Can be realized using scheme a or scheme b, under short trouble operating mode, receive current detecting
The signal of the transmission of unit 2, triggers corresponding trigger switch conducting, produces high frequency oscillating current, and this high frequency oscillating current is superimposed upon
Current zero is produced on the fault current for flowing through breaker CB1.
Fig. 2 is a kind of schematic diagram of scheme a that flow-restriction 1 is shifted in short-circuit fault current limiter.
Scheme a is by the first recharged capacitance C1, the second recharged capacitance C2, the first trigger switch K1, the second trigger switch
K2 and mutual reactor 3 are constituted.
The tap 31 of mutual reactor 3 first is connected in series with the first recharged capacitance C1, the first trigger switch K1, coupling
The tap 32 of reactor 3 second is connected in series with the second recharged capacitance C2, the second trigger switch K2.In the failure that is short-circuited
When, according to the direction of fault current, by the turn-on and turn-off for controlling the first trigger switch K1 and the second trigger switch K2, make coupling
Close the vice-side winding of reactor 3 and produce high frequency oscillating current, and oscillating current amplitude exceedes system failure current amplitude.
Size and direction according to short-circuit current, Proper Match transfer flow-restriction 1 in capacitance parameter with couple electricity
Anti- device 3 parameter (main capacitance and charging voltage including the first recharged capacitance C1 and the second recharged capacitance C2, first
Tap 31, the second tap 32 become the when coefficient of coup with vice-side winding), the height for producing the vice-side winding of mutual reactor 3
Frequency oscillating current produces zero crossing with the short-circuit current for flowing through breaker CB1.
In the case where other parameters are constant, can by increase reactor the first tap 31, the second tap 32 with
The coefficient of coup of vice-side winding, the first recharged capacitance C1, the capacitance of the second recharged capacitance C2 and charging voltage are improving
The high frequency oscillating current amplitude of the vice-side winding of mutual reactor 3 in transfer flow-restriction 1.
Fig. 3 is a kind of schematic diagram of the scheme b that flow-restriction 1 is shifted in short-circuit fault current limiter.
Scheme b is made up of the 3rd recharged capacitance C3, the 3rd trigger switch K3 and mutual reactor 3.Mutual reactor 3
Primary side winding is sequentially connected in series the 3rd trigger switch K3 and the 3rd recharged capacitance C3, when failure is short-circuited, by touching
The conducting of the 3rd trigger switch K3 is sent out, makes the vice-side winding of mutual reactor 3 produce high frequency oscillating current, and oscillating current amplitude is super
Cross system failure current amplitude.
In the case where other parameters are constant, can pass through to increase the coefficient of coup of mutual reactor 3, the 3rd precharge electricity
Hold C3 capacitance and charging voltage come improve transfer flow-restriction 1 in the vice-side winding of mutual reactor 3 high frequency oscillating current
Amplitude.
Transfer flow-restriction 1 adopt scheme a when to mutual reactor 3 and the parameter request of charging capacitor：
If current detecting unit 2 detect system be short-circuited failure when, according to the direction of short-circuit current, close phase
The first trigger switch K1 answered or the second trigger switch K2.
When the first trigger switch K1 is closed, first point to the primary side winding of mutual reactor 3 of the first recharged capacitance C1
Joint 31 discharges, and should ensure that reverse high frequency oscillating current produces current zero with the fault current flow through on breaker CB1.
When the second trigger switch K2 is closed, second point to the primary side winding of mutual reactor 3 of the second recharged capacitance C2
Joint 32 discharges, and should ensure that reverse high frequency oscillating current produces current zero with the fault current flow through on breaker CB1.
Transfer flow-restriction 1 adopt scheme b when to mutual reactor 3 and the parameter request of charging capacitor：
Under short trouble operating mode, when the 3rd trigger switch K3 is closed, the 3rd recharged capacitance C3 is to mutual reactor 3
Primary side winding is discharged, and should ensure that secondary high frequency oscillating current produces current zero with the fault current flow through on breaker CB1.
The secondary inductance parameter request of mutual reactor 3：Under system short-circuit fault operating mode, after breaker CB1 disconnects, coupling
The secondary inductance of reactor 3 should be able to be by the range of the connecting-disconnecting function of fault current limitation to line-breaker.
Fig. 4 applies the schematic diagram in power system, current limiter to be arranged on step down side for short-circuit fault current limiter,
When there is short trouble in leading-out terminal, the rapid action of short-circuit fault current limiter cut-offfing to line-breaker by fault current limitation
In limit of power, reduce amplitude and the duration of fault current, so as to reduce short-circuit current to electric power such as transformers
The infringement of equipment, is conducive to the safe and stable operation of power system.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, all any modifications made within spirit of the present utility model and principle, equivalent and change
Enter, should be included within protection domain of the present utility model.
Claims (8)
1. a kind of short-circuit fault current limiter, it is characterised in that include：Breaker CB1, transfer flow-restriction (1) and current detecting
Unit (2)；
The current detecting unit (2) is connected in series with breaker CB1, the breaker CB1 and it is described transfer flow-restriction (1)
Access in circuit on power system after parallel connection；The output end of current detecting unit (2) connects with the control end of transfer flow-restriction (1)
Connect, current detecting unit (2) detection flows through the fault current of breaker CB1 branch roads under short trouble operating mode and triggers institute
State the trigger switch conducting of transfer flow-restriction (1).
2. short-circuit fault current limiter as claimed in claim 1, it is characterised in that the transfer flow-restriction (1) includes：First
Recharged capacitance C1, the second recharged capacitance C2, the first trigger switch K1, the second trigger switch K2 and mutual reactor (3)；
The primary side winding of the mutual reactor (3) has the first tap (31) and the second tap (32), the coupling electricity
The vice-side winding of anti-device (3) is in parallel with the breaker CB1；
First tap (31) is sequentially connected in series first trigger switch K1 and the first recharged capacitance C1；Institute
State the second tap (32) and be sequentially connected in series second trigger switch K2 and the second recharged capacitance C2.
3. short-circuit fault current limiter as claimed in claim 2, it is characterised in that when be short-circuited failure when, by the electricity
The control signal of stream detector unit (2) output triggers first trigger switch K1 or the conducting of the second trigger switch K2, makes coupling
Reactor (3) vice-side winding produces high frequency oscillating current, and oscillating current amplitude exceedes system failure current amplitude.
4. short-circuit fault current limiter as claimed in claim 1, it is characterised in that the transfer flow-restriction (1) includes：3rd
Recharged capacitance C3, the 3rd trigger switch K3 and mutual reactor (3)；
The primary side winding of the mutual reactor (3) is sequentially connected in series the 3rd trigger switch K3 and the 3rd precharge
Electric capacity C3, vice-side winding and the breaker CB1 branch circuit parallel connections of the mutual reactor (3).
5. short-circuit fault current limiter as claimed in claim 4, it is characterised in that when be short-circuited failure when, by the electricity
The control signal of stream detector unit (2) output triggers the 3rd trigger switch K3 conducting, makes mutual reactor (3) vice-side winding
High frequency oscillating current is produced, and oscillating current amplitude exceedes system failure current amplitude.
6. the short-circuit fault current limiter as described in any one of claim 2-5, it is characterised in that according to the big of short-circuit current
Little and direction, capacitance parameter and the parameter of mutual reactor (3), make mutual reactor (3) secondary in matching transfer flow-restriction (1)
The high frequency oscillating current of side winding produces zero crossing with the short-circuit current for flowing through breaker CB1.
7. short-circuit fault current limiter as claimed in claim 6, it is characterised in that in the case where other specification is constant, pass through
Increase the first recharged capacitance C1, the capacitance of the second recharged capacitance C2 and charging voltage, increase the first tap (31), the
Two taps (32) and the coefficient of coup of vice-side winding, improve mutual reactor (3) vice-side winding in transfer flow-restriction (1)
High frequency oscillating current amplitude.
8. short-circuit fault current limiter as claimed in claim 6, it is characterised in that in the case where other specification is constant, pass through
Or the capacitance and charging voltage of the 3rd recharged capacitance C3 of increase, increase the coefficient of coup of mutual reactor (3), improve transfer
The high frequency oscillating current amplitude of mutual reactor (3) vice-side winding in flow-restriction (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181330.6U CN206180580U (en) | 2016-10-27 | 2016-10-27 | Short circuit fault current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621181330.6U CN206180580U (en) | 2016-10-27 | 2016-10-27 | Short circuit fault current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206180580U true CN206180580U (en) | 2017-05-17 |
Family
ID=58681880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621181330.6U Withdrawn - After Issue CN206180580U (en) | 2016-10-27 | 2016-10-27 | Short circuit fault current limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206180580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385018A (en) * | 2016-10-27 | 2017-02-08 | 华中科技大学 | Shortcircuit fault current limiter |
| CN112186720A (en) * | 2020-08-24 | 2021-01-05 | 国网河北省电力有限公司电力科学研究院 | High-speed short circuit current limiting device |
-
2016
- 2016-10-27 CN CN201621181330.6U patent/CN206180580U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385018A (en) * | 2016-10-27 | 2017-02-08 | 华中科技大学 | Shortcircuit fault current limiter |
| WO2018076431A1 (en) * | 2016-10-27 | 2018-05-03 | 华中科技大学 | Short-circuit failure current limiter |
| CN106385018B (en) * | 2016-10-27 | 2019-04-23 | 华中科技大学 | A kind of short-circuit fault current limiter |
| US10756537B2 (en) | 2016-10-27 | 2020-08-25 | Huazhong University Of Science And Technology | Short circuit fault current limiter |
| CN112186720A (en) * | 2020-08-24 | 2021-01-05 | 国网河北省电力有限公司电力科学研究院 | High-speed short circuit current limiting device |
| CN112186720B (en) * | 2020-08-24 | 2022-09-13 | 国网河北省电力有限公司电力科学研究院 | High-speed short circuit current limiting device |
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