CN106953307A - Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR - Google Patents
Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR Download PDFInfo
- Publication number
- CN106953307A CN106953307A CN201710121801.7A CN201710121801A CN106953307A CN 106953307 A CN106953307 A CN 106953307A CN 201710121801 A CN201710121801 A CN 201710121801A CN 106953307 A CN106953307 A CN 106953307A
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- Prior art keywords
- switch
- large capacity
- reactor
- female
- fast switch
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- 230000005611 electricity Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/021—Current limitation using saturable reactors
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
K0, electric discharge damper RL, high energy type fuse FU are switched the present invention relates to a kind of self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR, including female reactor L, Fast Switch with Large Capacity FSR, the first high-speed eddy of protecting；High energy type fuse FU protects reactor L with mother and connected, the two switchs K0 and electric discharge damper RL, Fast Switch with Large Capacity FSR parallel connections with the first high-speed eddy after connecting respectively after connecting, the end of incoming cables of a second high-speed eddy switch K1 terminating set, another termination high energy type fuse FU end of incoming cables.The present invention has the advantages that simple in construction, safe and reliable, action is fast no-delay, can be in the female guarantor's reactor L of 0.15ms inputs, isolation short trouble can be cut off in time, prevent the further expansion of short trouble scope, not decompression of the bus in feeder line branch, short-circuit failure is effectively ensured, can realize that short trouble excision stepmother protects zero loss of reactor again.
Description
Technical field
Technical field is kept the present invention relates to electrical system bus residual voltage, it is especially a kind of to be based on Fast Switch with Large Capacity
FSR self-shield bus residual 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
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, 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, bus residual 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 has the presence of electric energy or magnetic energy energy-storage travelling wave tube.
When usual bus residual voltage is below 50%, sensitive loads tolerable " shaking electricity " time is not more than 30ms.
When foreign network is short-circuited failure, the overall whole loads of area's Intranet or part important load can be switched to separately
One foreign network, but certain branch road is short-circuited and cannot integrally have switched in area's Intranet, can only partly switch.If weight in area's Intranet
The sensitive loads wanted artificially have focused on a small number of branch roads or its circuitry number is originally few, and part switching is that can to solve area's Intranet short
The problem of important load is stopped transport is caused on road, and necessary condition is that to have the suitable foreign network that can switch.If important in area's Intranet
Sensitive loads branch road it is a lot, 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 bus residual 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, when branch road is short-circuited failure, and 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.
The content of the invention
It is an object of the invention to provide a kind of simple in construction, safe and reliable, act soon, isolation short circuit event can be cut off in time
Barrier, prevent the further expansion of short trouble scope, be effectively ensured bus in feeder line branch, short-circuit failure not decompression based on
Fast Switch with Large Capacity FSR self-shield bus residual voltage holding meanss.
To achieve the above object, present invention employs following technical scheme：It is a kind of based on Fast Switch with Large Capacity FSR from
Bus residual voltage holding meanss, including mother are protected to protect reactor L, the great Rong for the female guarantor's reactor L of quick input after system short-circuit
Measure speed-sensitive switch FSR, backed off after random mother's guarantor's reactor L the first high-speed eddy switch K0 cut off for short trouble, for limiting
Mother protects the electric discharge damper RL of reactor L discharge impact electric current, for preventing that female reactor L that protects from occurring because of long-time input
The high energy type fuse FU of damage and the second high-speed eddy switch K1；The high energy type fuse FU protects reactor L with mother and connected, and two
K0 and electric discharge damper RL, Fast Switch with Large Capacity FSR parallel connections are switched with the first high-speed eddy after connecting respectively after person's series connection,
The end of incoming cables of a second high-speed eddy switch K1 terminating set, another termination high energy type fuse FU end of incoming cables.
The electric discharge damper RL is composed in parallel by inductance L and resistance R, one end of the electric discharge damper RL and first high
Speed vortex switch K0 leading-out terminal is connected, and the other end is connected with female leading-out terminal for protecting reactor L.
The first high-speed eddy switch K0, the second high-speed eddy switch K1 are vacuum interrupter arc extinguishing breaker.
Female reactor L, Fast Switch with Large Capacity FSR, first high-speed eddy of protecting switchs K0, electric discharge damper RL, height
Energy type fuse FU and the second high-speed eddy switch K1 are installed in power distribution cabinet.
The Fast Switch with Large Capacity FSR, the first high-speed eddy switch K0, the second high-speed eddy switch K1 are by installing
Controller in power distribution cabinet controls it to cut-off.
As shown from the above technical solution, the present invention has that simple in construction, safe and reliable, action is fast, it is no-delay etc. excellent to act
Point, can be in the female guarantor reactor L of 0.15ms inputs, more than the switching speed for passing through breaker control mother's guarantor's reactor L in the market
Degree is fast, and isolation short trouble can be cut off in time, the further expansion of short trouble scope is prevented, bus is effectively ensured in feeder line
Not decompression during branch, short-circuit failure, can realize that short trouble excision stepmother protects zero loss of reactor again.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention.
Embodiment
As shown in figure 1, a kind of self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR, including female guarantor
Reactor L, for the female Fast Switch with Large Capacity FSR for protecting reactor L of quick input after system short-circuit, for short trouble excision
Backed off after random mother protects reactor L the first high-speed eddy switch K0, the electric discharge for limiting female discharge impact electric current for protecting reactor L
Damper RL, the high speeds of high energy type fuse FU and second for preventing female guarantor reactor L to be damaged because long-time is put into
Vortex switch K1；The high energy type fuse FU with mother protect reactor L connect, the two series connection after respectively with connect after first high speed
Vortex switch K0 and electric discharge damper RL, Fast Switch with Large Capacity FSR are in parallel, and the second high-speed eddy switchs a K1 terminating set
End of incoming cables, another termination high energy type fuse FU end of incoming cables.The leading-out terminal that the mother protects reactor L is used as the outlet of device
End.
The second high-speed eddy switch K1 passes sequentially through high energy type fuse FU and female reactor L that protects and is grounded.The great Rong
Measuring speed-sensitive switch FSR is used for when power system is short-circuited failure, and mother is protected into reactor L is quickly connected in series in loop, passes through
Mother protect reactor L can effective limiting short-circuit current intensity, greatly reduce impact of the short circuit current flow to electrical equipment.
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
The leading-out terminal for switching K0 with the first high-speed eddy is held to be connected, the other end is connected with female leading-out terminal for protecting reactor L.Discharge damper
RL is used to limit the discharge impact electric current that mother protects reactor L, prevents that female reactor L that protects from being damaged due to excessively stream, makes female guarantor's reactance
Device L both end voltages can be limited in a relatively low level, substantially increase the frequency of female input current limliting for protecting reactor L.
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 end of incoming cables for the damper RL that discharges, and the other end protects electricity with female
Anti- device L end of incoming cables 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 that mother is protected into reactor L short circuits, realizes female zero loss for protecting reactor L of normal operation.
As shown in figure 1, one end of the high energy type fuse FU is connected with female end of incoming cables for protecting reactor L, the other end and the
Two high-speed eddies switch K1 leading-out terminal is connected.High energy type fuse FU is used to control female making time for protecting reactor L, as mother guarantor
When reactor L exceedes effective current limliting time, high energy type fuse FU disconnects immediately, prevents female reactor L that protects because of long-time input
It is damaged.
As shown in figure 1, female reactor L, Fast Switch with Large Capacity FSR, first high-speed eddy of protecting switchs K0, electric discharge resistance
Buddhist nun's device RL, high energy type fuse FU and the second high-speed eddy switch K1 are installed in power distribution cabinet.The Fast Switch with Large Capacity
FSR, the first high-speed eddy switch K0, the second high-speed eddy switch K1 control it to open by the controller in power distribution cabinet
It is disconnected.
The operation principle of the present invention is as follows：When under bus feeder line any branch road be short-circuited failure when, high-capacity and high-speed is opened
FSR is closed to limit the short-circuit current of this feeder line by female reactor L that protects when 0.15ms mothers protect reactor L and put into
To the size of the rated current of this feeder line, so as to effectively prevent that bus from lose whole piece bus because a branch road breaks down
Pressure, greatly reduces the scope of short trouble.When mother protects reactor L inputs, fault branch short circuit current flow is substantially reduced, and branch road breaks
Road device can effectively cut off the short trouble of the branch road；When the branch breaker is because breaking down, it is impossible to quickly cut off this branch road
Short trouble when, fast acting control system controls the second high-speed eddy to switch K1 separating brakes immediately, and whole piece branch road is isolated, anti-
The only further expansion of short trouble.After short trouble is cut off by this branch breaker, fast acting control system control first is high
Speed vortex switch K0 is closed immediately, and mother is protected into reactor L carries out short circuit, prevents that female reactor L that protects from putting into a large amount of nothings of consumption for a long time
The actual motion problem with user terminal brownout is lost in work(.
Claims (5)
1. a kind of self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR, it is characterised in that：Electricity is protected including mother
Anti- device L, for the female Fast Switch with Large Capacity FSR for protecting reactor L of quick input after system short-circuit, for short trouble excision after
Exit female the first high-speed eddy switch K0 for protecting reactor L, the electric discharge resistance for limiting female discharge impact electric current for protecting reactor L
Buddhist nun's device RL, for preventing from female protecting high energy type fuse FU and the second high speed whirlpool that reactor L is damaged because long-time is put into
Stream switch K1；The high energy type fuse FU with mother protect reactor L connect, the two connect after respectively with connect after the first high speed whirlpool
Stream switch K0 and electric discharge damper RL, Fast Switch with Large Capacity FSR are in parallel, a second high-speed eddy switch K1 terminating set
End of incoming cables, another termination high energy type fuse FU end of incoming cables.
2. the self-shield bus residual voltage holding meanss according to claim 1 based on Fast Switch with Large Capacity FSR, its feature
It is：The electric discharge damper RL is composed in parallel by inductance L and resistance R, one end and the first high speed of the electric discharge damper RL
Vortex switch K0 leading-out terminal is connected, and the other end is connected with female leading-out terminal for protecting reactor L.
3. the self-shield bus residual voltage holding meanss according to claim 1 based on Fast Switch with Large Capacity FSR, its feature
It is：The first high-speed eddy switch K0, the second high-speed eddy switch K1 are vacuum interrupter arc extinguishing breaker.
4. the self-shield bus residual voltage holding meanss according to claim 1 based on Fast Switch with Large Capacity FSR, its feature
It is：Female reactor L, Fast Switch with Large Capacity FSR, first high-speed eddy of protecting switchs K0, electric discharge damper RL, high energy type
Fuse FU and the second high-speed eddy switch K1 are installed in power distribution cabinet.
5. the self-shield bus residual voltage holding meanss according to claim 1 based on Fast Switch with Large Capacity FSR, its feature
It is：The Fast Switch with Large Capacity FSR, the first high-speed eddy switch K0, the second high-speed eddy switch K1 by installed in
Controller in power distribution cabinet controls it to cut-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121801.7A CN106953307A (en) | 2017-03-02 | 2017-03-02 | Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121801.7A CN106953307A (en) | 2017-03-02 | 2017-03-02 | Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR |
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| Publication Number | Publication Date |
|---|---|
| CN106953307A true CN106953307A (en) | 2017-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121801.7A Pending CN106953307A (en) | 2017-03-02 | 2017-03-02 | Self-shield bus residual voltage holding meanss based on Fast Switch with Large Capacity FSR |
Country Status (1)
| Country | Link |
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| CN (1) | CN106953307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023336A (en) * | 2017-12-18 | 2018-05-11 | 安徽伊格瑞德电气设备有限公司 | A kind of holding meanss based on explosive bridge FSR busbar residual voltages |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN205646794U (en) * | 2016-05-12 | 2016-10-12 | 安徽尚途电力保护设备有限公司 | Explosion bridge type generating line residual voltage holding device |
| CN205724875U (en) * | 2016-04-15 | 2016-11-23 | 深圳市汇辰自动化技术有限公司 | A kind of power input port protection circuit |
| 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 |
| CN106849039A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of novel bus residual voltage holding meanss |
-
2017
- 2017-03-02 CN CN201710121801.7A patent/CN106953307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916411A (en) * | 2011-07-06 | 2013-02-06 | 立德电子股份有限公司 | Surge current suppression circuit |
| CN205724875U (en) * | 2016-04-15 | 2016-11-23 | 深圳市汇辰自动化技术有限公司 | A kind of power input port protection circuit |
| CN205646794U (en) * | 2016-05-12 | 2016-10-12 | 安徽尚途电力保护设备有限公司 | Explosion bridge type generating line residual voltage holding device |
| 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 |
| CN106849039A (en) * | 2017-03-02 | 2017-06-13 | 安徽伊格瑞德电气设备有限公司 | A kind of novel bus residual voltage holding meanss |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023336A (en) * | 2017-12-18 | 2018-05-11 | 安徽伊格瑞德电气设备有限公司 | A kind of holding meanss based on explosive bridge FSR busbar residual voltages |
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Application publication date: 20170714 |