CN206533121U - A kind of busbar voltage holding meanss based on current limliting zinc oxide FR - Google Patents
A kind of busbar voltage holding meanss based on current limliting zinc oxide FR Download PDFInfo
- Publication number
- CN206533121U CN206533121U CN201720198859.7U CN201720198859U CN206533121U CN 206533121 U CN206533121 U CN 206533121U CN 201720198859 U CN201720198859 U CN 201720198859U CN 206533121 U CN206533121 U CN 206533121U
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- current limliting
- switch
- isolation switch
- speed eddy
- Prior art date
- 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 122
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 61
- 238000002955 isolation Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
Abstract
The utility model is related to a kind of busbar voltage holding meanss based on current limliting zinc oxide FR, including current limliting zinc oxide FR, the second high-speed eddy switch K1, high pressure quick break fuse FU, the first high-speed eddy switch K0, electric discharge damper RL, and the first isolation switch G1, the second isolation switch G2, the 3rd isolation switch G3；The electric discharge damper RL is in parallel with current limliting zinc oxide FR after being connected with the first high-speed eddy switch K0, high pressure quick break fuse FU is connected in parallel on current limliting zinc oxide FR two ends, the end of incoming cables of the current limliting zinc oxide FR passes sequentially through the second high-speed eddy switch K1, the end of incoming cables of the first isolation switch G1 connection devices, the leading-out terminal that current limliting zinc oxide FR leading-out terminal passes through the second isolation switch G2 connection devices.The utility model has the advantages that simple in construction, safe and reliable, action is fast, current limliting zinc oxide FR can quickly be put into, the short trouble of excision isolation in time, prevents the further expansion of short trouble scope, not decompression of the bus in feeder line branch, short-circuit failure is effectively ensured.
Description
Technical field
The utility model is related to electrical system bus voltage and keeps technical field, especially a kind of to be based on current limliting zinc oxide FR
Busbar voltage holding meanss.
Background technology
With expanding economy, the sharp increase of business electrical load, power network median generatrix institute band branch road is more and more, works as mother
Short circuit occurs for a certain bar branch road under line, and drop is serious suddenly for the busbar voltage being connected with the branch road, and the remaining voltage of bus is generally below
The 20% of rated voltage, only when the branch breaker cut-offs, has cut off short trouble, busbar voltage could be recovered.Busbar voltage
There is this period that is recessed, Enterprise Power System is referred to as " shaking electricity ".During " shaking electricity " occurs, busbar voltage is very low, makes one
A little load runnings that short trouble does not occur are interrupted, such as frequency converter, motor, relay, magnetic valve.These are anti-to " shaking electricity "
Referred to as sensitive loads should be significantly loaded, mechanical movement is characterized in and has the presence of electric energy or magnetic energy energy-storage travelling wave tube.
When short trouble occurs for foreign network, area's Intranet overall all load or part important load can be switched to another
Short circuit, which occurs, for certain branch road in individual foreign network, but area's Intranet integrally have switched, and can only partly switch.If important in area's Intranet
Sensitive loads artificially focused on a small number of branch roads or its circuitry number is originally few, part switching is can to solve area's Intranet short circuit
The problem of important load is stopped transport is caused, necessary condition is that to have the suitable foreign network that can switch.If important in area's Intranet
Sensitive loads branch road is a lot, and the cost of part switching is just too big, if changeable foreign network condition does not possess, then
Solve area's Intranet and shake electric problem, be desirable scheme using busbar voltage holding meanss.
The bus residual voltage holding meanss that existing market is used all are the inputs that reactor is protected by High-speed on-off control mother, just
Often during operation, speed-sensitive switch short circuit mother protects reactor, and when short trouble occurs for branch road, mother is protected reactance by speed-sensitive switch separating brake
Device is concatenated into circuit, occurs to speed-sensitive switch separating brake to need 18ms from short trouble, short trouble is possible to be expanded to bus
Side, will cause larger range of Power System Shortcuts.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, safe and reliable, action soon, can in time cut off and isolate short
Road failure, prevents the further expansion of short trouble scope, and not decompression of the bus in feeder line branch, short-circuit failure is effectively ensured
The busbar voltage holding meanss based on current limliting zinc oxide FR.
To achieve the above object, the utility model employs following technical scheme：A kind of mother based on current limliting zinc oxide FR
Line voltage holding meanss, including current limliting zinc oxide FR, the second high-speed eddy switch K1, for quick input current limliting after system short-circuit
Zinc oxide FR high pressure quick break fuse FU, the first high-speed eddy switch for short trouble excision backed off after random current limliting zinc oxide FR
K0, the electric discharge damper RL for limiting dash current after current limliting zinc oxide FR short circuits, and for service without power-off or replacing
The first isolation switch G1, the second isolation switch G2, the 3rd isolation switch G3 of component；The electric discharge damper RL and first is high
In parallel with current limliting zinc oxide FR after speed vortex switch K0 series connection, the high pressure quick break fuse FU is connected in parallel on the two of current limliting zinc oxide FR
End, the end of incoming cables of the current limliting zinc oxide FR passes sequentially through the second high-speed eddy switch K1, the first isolation switch G1 connection devices
End of incoming cables, the leading-out terminal that current limliting zinc oxide FR leading-out terminal passes through the second isolation switch G2 connection devices.
The electric discharge damper RL is composed in parallel by inductance L and resistance R.
The first high-speed eddy switch K0, the second high-speed eddy switch K1 are vacuum interrupter arc extinguishing breaker.
An end of the 3rd isolation switch G3 is connected between the end of incoming cables of device and the first isolation switch G1, another termination
Between the second isolation switch G2 and the leading-out terminal of device.
The current limliting zinc oxide FR, the second high-speed eddy switch K1, high pressure quick break fuse FU, the first 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
It is interior.
The first high-speed eddy switch K0, the second high-speed eddy switch K1 pass through the controller in power distribution cabinet
Control it to cut-off；The first isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 are with being arranged in power distribution cabinet
Operating mechanism be connected, by manually controlling it to cut-off.
As shown from the above technical solution, the utility model has the advantages that simple in construction, safe and reliable, action is fast, can be fast
Speed input current limliting zinc oxide FR, the short trouble of excision isolation in time, prevents the further expansion of short trouble scope, is effectively ensured
Not decompression of the bus in feeder line branch, short-circuit failure, while being avoided by first, second and third isolation switch G1, G2, G3 because stopping
Electric-examination, which is repaiied, brings economic loss.
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 busbar voltage holding meanss based on current limliting zinc oxide FR, including current limliting zinc oxide FR,
Two high-speed eddies switch K1, the high pressure quick break fuse FU for quickly putting into current limliting zinc oxide FR after system short-circuit, for short circuit
Failure removal backed off after random current limliting zinc oxide FR the first high-speed eddy switchs K0, for limiting impact after current limliting zinc oxide FR short circuits
The electric discharge damper RL of electric current, and for service without power-off or change the first isolation switch G1 of component, the second isolation knife
Lock G2, the 3rd isolation switch G3；The electric discharge damper RL and the first high-speed eddy switch K0 connect after with current limliting zinc oxide FR
Parallel connection, the high pressure quick break fuse FU is connected in parallel on current limliting zinc oxide FR two ends, and the end of incoming cables of the current limliting zinc oxide FR is successively
The end of incoming cables of K1, the first isolation switch G1 connection devices is switched by the second high-speed eddy, current limliting zinc oxide FR leading-out terminal passes through
The leading-out terminal of second isolation switch G2 connection devices.
As shown in figure 1, the electric discharge damper RL is composed in parallel by inductance L and resistance R, the one of the electric discharge damper RL
End is connected with current limliting zinc oxide FR end of incoming cables, and the end of incoming cables that the other end switchs K0 with the first high-speed eddy is connected.Electric discharge damping
Device RL is used for the discharge impact electric current for limiting current limliting zinc oxide FR, prevents current limliting zinc oxide FR from being damaged due to excessively stream, makes current limliting
Zinc oxide FR both end voltages can be limited in a relatively low level, substantially increase the frequency of current limliting zinc oxide FR input current limliting
Rate.
As shown in figure 1, the first high-speed eddy switch K0, the second high-speed eddy switch K1 are vacuum interrupter arc extinguishing
Breaker.One end of the first high-speed eddy switch K0 is connected with the leading-out terminal for the damper RL that discharges, the other end and current limliting oxygen
The leading-out terminal for changing zinc FR is connected.When short trouble occurs in circuit on power system, after short trouble excision, controller is controlled immediately
First high-speed eddy switch K0 closes a floodgate, so as to by current limliting zinc oxide FR short circuits, realize normal operation current limliting zinc oxide FR zero damage
Consumption.
As shown in figure 1, an end of the 3rd isolation switch G3 be connected on device end of incoming cables and the first isolation switch G1 it
Between, it is another to terminate between the second isolation switch G2 and the leading-out terminal of device.The current limliting zinc oxide FR, the second high-speed eddy are opened
Close K1, high pressure quick break fuse FU, the first high-speed eddy switch K0, electric discharge damper RL, the first isolation switch G1, the second isolation knife
Lock G2 and the 3rd isolation switch G3 are installed in power distribution cabinet.High pressure quick break fuse FU is used for quick fuse during short circuit, high pressure speed
Disconnected fuse FU fusing produces arc voltage, turns on current limliting zinc oxide FR, and itself a larger resistance is produced after current limliting zinc oxide FR conductings
It is anti-, can effective limiting short-circuit current intensity, greatly reduce impact of the short circuit current flow to electrical equipment.First high-speed eddy
Switch K0, the second high-speed eddy switch K1 control it to cut-off by the controller in power distribution cabinet；First isolation
Disconnecting link G1, the second isolation switch G2 and the 3rd isolation switch G3 are connected with the operating mechanism in power distribution cabinet, pass through people
Industry control system its cut-off.
Operation principle of the present utility model is as follows：When short trouble occurs for any branch road under bus feeder line, high pressure quick-break
Fuse FU fusing produces arc voltage, turns on current limliting zinc oxide FR, and itself a larger impedance is produced after current limliting zinc oxide FR conductings,
The short-circuit current of this feeder line is restricted to the size of the rated current of this feeder line by current limliting zinc oxide FR, so as to have
Effect prevents bus from making whole piece bus loss of pressure because a branch road breaks down, and greatly reduces the scope of short trouble；When current limliting oxygen
When changing zinc FR inputs, fault branch short circuit current flow is substantially reduced, and branch breaker can effectively cut off the short trouble of the branch road；When
When the branch breaker is because breaking down, it is impossible to which when quickly cutting off the short trouble of this branch road, the controller in power distribution cabinet is immediately
Control the second high-speed eddy to switch K1 separating brakes, whole piece branch road is isolated, the further expansion of short trouble is prevented；Work as short circuit
After failure is cut off by this branch breaker, the controller in power distribution cabinet controls the first high-speed eddy switch K0 to close immediately, will limit
Flow zinc oxide FR and carry out short circuit, prevent current limliting zinc oxide FR from putting into a large amount of reactive loss of consumption and user terminal brownout for a long time
Actual motion problem.Service without power-off is realized by first, second and third isolation switch G1, G2, G3, reduces maintenance repair and failure
The power failure range of maintenance, greatly improves the reliability and security of power supply, while avoiding because interruption maintenance brings economic loss.
Claims (6)
1. a kind of busbar voltage holding meanss based on current limliting zinc oxide FR, it is characterised in that：Including current limliting zinc oxide FR, second
High-speed eddy switchs K1, the high pressure quick break fuse FU for quickly putting into current limliting zinc oxide FR after system short-circuit, for short-circuit event
Barrier excision backed off after random current limliting zinc oxide FR the first high-speed eddy switchs K0, for limitation impact electricity after current limliting zinc oxide FR short circuits
The electric discharge damper RL of stream, and for service without power-off or the first isolation switch G1, the second isolation switch of replacing component
G2, the 3rd isolation switch G3；The electric discharge damper RL and the first high-speed eddy switch K0 connect after with current limliting zinc oxide FR simultaneously
Connection, the high pressure quick break fuse FU is connected in parallel on current limliting zinc oxide FR two ends, and the end of incoming cables of the current limliting zinc oxide FR leads to successively
Cross the second high-speed eddy switch K1, the end of incoming cables of the first isolation switch G1 connection devices, current limliting zinc oxide FR leading-out terminal passes through the
The leading-out terminal of two isolation switch G2 connection devices.
2. the busbar voltage holding meanss according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：It is described to put
Electrical deoscillator RL is composed in parallel by inductance L and resistance R.
3. the busbar voltage holding meanss according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：Described
One high-speed eddy switch K0, the second high-speed eddy switch K1 are vacuum interrupter arc extinguishing breaker.
4. the busbar voltage holding meanss according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：Described
A three isolation switch G3 end is connected between the end of incoming cables of device and the first isolation switch G1, another to terminate at the second isolation switch
Between G2 and the leading-out terminal of device.
5. the busbar voltage holding meanss according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：The limit
Flow zinc oxide FR, the second high-speed eddy switch K1, high pressure quick break fuse FU, the first high-speed eddy switch K0, electric discharge damper RL,
First isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 are installed in power distribution cabinet.
6. the busbar voltage holding meanss according to claim 1 based on current limliting zinc oxide FR, it is characterised in that：Described
One high-speed eddy switch K0, the second high-speed eddy switch K1 control it to cut-off by the controller in power distribution cabinet；Institute
The first isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 is stated with the operating mechanism in power distribution cabinet to be connected
Connect, by manually controlling it to cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198859.7U CN206533121U (en) | 2017-03-02 | 2017-03-02 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198859.7U CN206533121U (en) | 2017-03-02 | 2017-03-02 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206533121U true CN206533121U (en) | 2017-09-29 |
Family
ID=59918045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198859.7U Expired - Fee Related CN206533121U (en) | 2017-03-02 | 2017-03-02 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206533121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849022A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
-
2017
- 2017-03-02 CN CN201720198859.7U patent/CN206533121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849022A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
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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 |