CN106849022A - 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
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- CN106849022A CN106849022A CN201710121794.0A CN201710121794A CN106849022A CN 106849022 A CN106849022 A CN 106849022A CN 201710121794 A CN201710121794 A CN 201710121794A CN 106849022 A CN106849022 A CN 106849022A
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- China
- Prior art keywords
- zinc oxide
- current limliting
- switch
- isolation switch
- speed eddy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates 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 the two ends of current limliting zinc oxide FR, 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, and the leading-out terminal of current limliting zinc oxide FR passes through the leading-out terminal of the second isolation switch G2 connection devices.The present invention has the advantages that simple structure, safe and reliable, action are fast, can quickly put into current limliting zinc oxide FR, and the short trouble of excision isolation in time prevents the further expansion of short trouble scope, and not decompression of the bus in feeder line branch, short-circuit failure is effectively ensured.
Description
Technical field
Technical field, especially a kind of mother based on current limliting zinc oxide FR are kept the present invention relates to electrical system bus voltage
Line voltage holding meanss.
Background technology
As expanding economy, the sharp increase of business electrical load, power network median generatrix institute band branch road are more and more, work as mother
A certain bar branch road is short-circuited 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, and 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
The load running of a little failures that are not short-circuited is 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 is had the presence of electric energy or magnetic energy energy-storage travelling wave tube.
When foreign network is short-circuited failure, area's Intranet overall all load or part important load can be switched to another
Certain branch road is short-circuited in individual foreign network, but area's Intranet cannot 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 can be to solve the short circuit of area's Intranet
The problem for causing important load to stop transport, 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 by the female guarantor's reactor of High-speed on-off control, just
Often during operation, speed-sensitive switch short circuit is female to protect reactor, and when branch road is short-circuited failure, mother is protected reactance by speed-sensitive switch separating brake
Device is concatenated into circuit, occurs to need 18ms, short trouble to be possible to be expanded to bus to speed-sensitive switch separating brake from short trouble
Side, will cause larger range of Power System Shortcuts.
The content of the invention
It is fast it is an object of the invention to provide a kind of simple structure, safe and reliable, action, can in time cut off isolation short circuit event
Barrier, prevents the further expansion of short trouble scope, and the base of not decompression of the bus in feeder line branch, short-circuit failure is effectively ensured
In the busbar voltage holding meanss of current limliting zinc oxide FR.
To achieve the above object, present invention employs following technical scheme：A kind of bus electricity based on current limliting zinc oxide FR
Pressure retaining device, including current limliting zinc oxide FR, the second high-speed eddy switch K1, are aoxidized for quick input current limliting after system short-circuit
The high pressure quick break fuse FU of zinc FR, the first high-speed eddy switch K0 for short trouble excision backed off after random current limliting zinc oxide FR,
Electric discharge damper RL for limiting dash current after current limliting zinc oxide FR short circuits, and for service without power-off or change first device
First isolation switch G1 of part, the second isolation switch G2, the 3rd isolation switch G3；The electric discharge damper RL and the first high speed whirlpool
In parallel with current limliting zinc oxide FR after stream switch K0 series connection, the high pressure quick break fuse FU is connected in parallel on the two ends of current limliting zinc oxide FR,
The end of incoming cables of the current limliting zinc oxide FR passes sequentially through the second high-speed eddy switch K1, the inlet wire of the first isolation switch G1 connection devices
End, the leading-out terminal of current limliting zinc oxide FR passes through the leading-out terminal of 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.
One 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 by the controller in power distribution cabinet
It is controlled to cut-off；The first isolation switch G1, the second isolation switch G2 and the 3rd isolation switch G3 be arranged on power distribution cabinet in
Operating mechanism be connected, cut-off by manually controlling it.
As shown from the above technical solution, the present invention has the advantages that simple structure, safe and reliable, action are fast, can quickly throw
Enter current limliting zinc oxide FR, the short trouble of excision isolation in time prevents the further expansion of short trouble scope, and bus is effectively ensured
Not decompression in feeder line branch, short-circuit failure, while avoided by first, second and third isolation switch G1, G2, G3 being examined because having a power failure
Repair and bring economic loss.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the invention.
Specific 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, for the high pressure quick break fuse FU of quick input current limliting zinc oxide FR after system short-circuit, for short circuit
First high-speed eddy of failure removal backed off after random current limliting zinc oxide FR switchs K0, is impacted for limitation after current limliting zinc oxide FR short circuits
The electric discharge damper RL of electric current, and for service without power-off or the first isolation switch G1, second isolation knife of replacing component
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 the two ends of current limliting zinc oxide FR, 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, the leading-out terminal of current limliting zinc oxide FR passes through
The leading-out terminal of the 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 the end of incoming cables of current limliting zinc oxide FR, and the other end is connected with the end of incoming cables of the first high-speed eddy switch K0.Electric discharge damping
Device RL is used to limit the discharge impact electric current of 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 the input current limliting of current limliting zinc oxide FR
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 first high-speed eddy switch K0 is connected with the leading-out terminal of electric discharge damper RL, the other end and current limliting oxygen
The leading-out terminal for changing zinc FR is connected.When after the failure that is short-circuited in circuit on power system, 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 zero damage of normal operation current limliting zinc oxide FR
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 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, by people
Industry control system its cut-off.
Operation principle of the invention is as follows：When under bus feeder line any branch road be short-circuited failure when, 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, passes through
The short-circuit current of this feeder line is restricted to current limliting zinc oxide FR the size of the rated current of this feeder line, so as to effectively prevent
Only bus makes whole piece bus loss of pressure because a branch road breaks down, and greatly reduces the scope of short trouble；When current limliting zinc oxide
When FR puts into, fault branch short circuit current is substantially reduced, and branch breaker can effectively cut off the short trouble of the branch road；When the branch
When circuit 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 controlled immediately
Second high-speed eddy switchs K1 separating brakes, and whole piece branch road is isolated, and prevents the further expansion of short trouble；Work as short trouble
After being cut off by this branch breaker, the controller in power distribution cabinet controls the first high-speed eddy switch K0 to close immediately, by current limliting oxygen
Changing zinc FR carries out short circuit, prevents current limliting zinc oxide FR from putting into the reality of a large amount of reactive loss of consumption and user terminal brownout for a long time
Operation problem.Service without power-off is realized by first, second and third isolation switch G1, G2, G3, reduces maintenance repair and trouble hunting
Power failure range, the reliability and security of power supply are greatly improved, 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 switch K1, for the high pressure quick break fuse FU of quick input current limliting zinc oxide FR after system short-circuit, for short-circuit therefore
First high-speed eddy of barrier excision backed off after random current limliting zinc oxide FR switchs K0, impacts electricity for limitation 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, second isolation switch of replacing component
G2, the 3rd isolation switch G3；The electric discharge damper RL is switched after K0 connects with current limliting zinc oxide FR simultaneously with the first high-speed eddy
Connection, the high pressure quick break fuse FU is connected in parallel on the two ends of current limliting zinc oxide FR, 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, the leading-out terminal of current limliting zinc oxide FR is by the
The leading-out terminal of two isolation switch G2 connection devices.
2. busbar voltage holding meanss based on current limliting zinc oxide FR according to claim 1, it is characterised in that：It is described to put
Electrical deoscillator RL is composed in parallel by inductance L and resistance R.
3. busbar voltage holding meanss based on current limliting zinc oxide FR according to claim 1, 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. busbar voltage holding meanss based on current limliting zinc oxide FR according to claim 1, it is characterised in that：Described
One end of three isolation switch G3 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. busbar voltage holding meanss based on current limliting zinc oxide FR according to claim 1, it is characterised in that：The limit
Stream 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. busbar voltage holding meanss based on current limliting zinc oxide FR according to claim 1, 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 to be connected with the operating mechanism in power distribution cabinet
Connect, cut-off by manually controlling it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121794.0A CN106849022A (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 |
|---|---|---|---|
| CN201710121794.0A CN106849022A (en) | 2017-03-02 | 2017-03-02 | A kind of busbar voltage holding meanss based on current limliting zinc oxide FR |
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| Publication Number | Publication Date |
|---|---|
| CN106849022A true CN106849022A (en) | 2017-06-13 |
Family
ID=59138886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121794.0A Pending CN106849022A (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 |
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| CN (1) | CN106849022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948492A (en) * | 2020-08-18 | 2020-11-17 | 合肥工业大学 | High-voltage line fault detection device and detection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353174U (en) * | 2011-11-16 | 2012-07-25 | 安徽曼瑞特电气有限公司 | Combined protector of high-voltage current limiting fuse |
| CN106099938A (en) * | 2016-06-24 | 2016-11-09 | 安徽尚途电力保护设备有限公司 | A kind of high-voltage fence series compensation device |
| CN205693360U (en) * | 2016-06-12 | 2016-11-16 | 国网安徽省电力公司宿州供电公司 | The distributed serial of a kind of duplicate protection compensates system |
| CN205724858U (en) * | 2016-06-16 | 2016-11-23 | 安徽徽电科技股份有限公司 | A kind of series resonance bus residual voltage holding means |
| CN206533121U (en) * | 2017-03-02 | 2017-09-29 | 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 CN201710121794.0A patent/CN106849022A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202353174U (en) * | 2011-11-16 | 2012-07-25 | 安徽曼瑞特电气有限公司 | Combined protector of high-voltage current limiting fuse |
| CN205693360U (en) * | 2016-06-12 | 2016-11-16 | 国网安徽省电力公司宿州供电公司 | The distributed serial of a kind of duplicate protection compensates system |
| CN205724858U (en) * | 2016-06-16 | 2016-11-23 | 安徽徽电科技股份有限公司 | A kind of series resonance bus residual voltage holding means |
| CN106099938A (en) * | 2016-06-24 | 2016-11-09 | 安徽尚途电力保护设备有限公司 | A kind of high-voltage fence series compensation device |
| CN206533121U (en) * | 2017-03-02 | 2017-09-29 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170613 |