CN106208013A - A kind of capacitor series compensation device and protection equipment thereof - Google Patents
A kind of capacitor series compensation device and protection equipment thereof Download PDFInfo
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- CN106208013A CN106208013A CN201610857605.1A CN201610857605A CN106208013A CN 106208013 A CN106208013 A CN 106208013A CN 201610857605 A CN201610857605 A CN 201610857605A CN 106208013 A CN106208013 A CN 106208013A
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- capacitor
- compensation device
- series compensation
- vertical
- protection equipment
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- 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
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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
- H02H7/16—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 capacitors
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- 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
- H02H9/025—Current limitation using field effect transistors
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- 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
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1807—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a kind of capacitor series compensation device and protection equipment thereof, belong to capacitor compensation technical field, solve that the electric energy loss that the cost of equipment maintenance that prior art exists is high, circuit runs is big, stabilization of equipment performance and the technical problem of poor reliability.The capacitor series compensation device of embodiment of the present invention offer and protection equipment thereof, capacitor series compensation device includes: vertical capacitor, switching operating mechanism and protection equipment, vertical capacitor connects transmission line of electricity by switching operating mechanism.Wherein, the protection equipment of capacitor series compensation device vertical capacitor in protective condenser series compensation device; including: MOV, damping reactor, high-speed switch and by-pass switch; MOV is parallel to the two ends of vertical capacitor; damping reactor is parallel to the two ends of vertical capacitor with high-speed switch after connecting, by-pass switch is parallel to the two ends of high-speed switch.The present invention is applied to improve transmission line of electricity voltage and power factor.
Description
Technical field
The present invention relates to capacitor compensation technical field, in particular to a kind of capacitor series compensation device and
Protection equipment.
Background technology
At present, 10kV and the 6kV distribution network of China is huge, and load condition is complicated, its ruuning situation and electric energy matter
Amount seems even more important.Quality of voltage is an important indicator of the quality of power supply.From the point of view of Practical, quality of voltage
Referring to the deviation between virtual voltage and desired voltage, the electric energy that reflection power supply department provides a user with is the most qualified.And, with
The sharp increase of power consumption, the quality of power supply especially quality of voltage problem is increasingly sharpened, and seriously limits the development of industrial or agricultural.
Regulate the impedance of AC transmission system, voltage, phase place, power etc. frequently with Electric capacity compensation device, work as capacitor
During input, bigger shoving can be produced；When capacitor excises, higher overvoltage can be produced；Capacitor needs before again putting into
It is discharged fully.Therefore, existing Electric capacity compensation device is applied very fast in the idle change of electrical equipment or has impact
Time in the system of load, it will usually be furnished with protection equipment, to realize system gained merit and reactive power flow controls flexibly, from
And reach to improve circuit conveying capacity, improve the purpose such as the quality of power supply, raising reliability.
In realizing process of the present invention, inventor finds that in prior art, at least there are the following problems: the electricity of prior art
The performance holding compensation device protection equipment is relatively low, can not protective condenser, Er Qiebao well when transmission line of electricity breaks down
The service life protecting equipment is relatively low, and then improves amount of depreciation and the maintenance cost of protection equipment, is easily reduced making of capacitor
By performance, and then have impact on the stability of transmission line of electricity potentially.Therefore, there is cost of equipment maintenance height, circuit in prior art
The electric energy loss run is big, stabilization of equipment performance and the technical problem of poor reliability.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of capacitor series compensation device and protection thereof to set
Standby, to reduce the maintenance cost of equipment, to reduce electric energy loss, raising stabilization of equipment performance and reliability that circuit runs.
First aspect, embodiments provides a kind of capacitor protection equipment, for protective condenser series compensation
Vertical capacitor vertical capacitor in device, including: MOV, damping reactor, high-speed switch and by-pass switch；
Described MOV is parallel to the two ends of described vertical capacitor；
Described damping reactor is parallel to the two ends of described vertical capacitor with described high-speed switch after connecting；
Described by-pass switch is parallel to the two ends of described high-speed switch.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, also
Including inductance, described inductance two ends connect described damping reactor and described high-speed switch respectively.
In conjunction with the first possible embodiment of first aspect, embodiments provide the second of first aspect
Possible embodiment, wherein, described by-pass switch is parallel to described high-speed switch and described inductance two ends.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the third of first aspect
Possible embodiment, wherein, described by-pass switch is chopper, and described high-speed switch is catalyst.
In conjunction with first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, institute
Stating damping reactor is series varactor device.
Second aspect, the embodiment of the present invention also provides for a kind of capacitor series compensation device, including: vertical capacitor, throwing
Cutting operating mechanism and described protection equipment, described vertical capacitor connects transmission line of electricity by described switching operating mechanism.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein, institute
Stating vertical capacitor is vertical capacitor group, some vertical capacitors be formed by connecting.
In conjunction with the first possible embodiment of second aspect, embodiments provide the second of second aspect
Possible embodiment, wherein, described vertical capacitor is connected with outlet by inlet wire, and described inlet wire and outlet are tin plating soft
Copper stranded conductor, described tin plating annealed copper strand wire is fixed on one end of aluminum row by wire clamp, and the other end of described aluminum row connects described vertical
The binding post of capacitor.
In conjunction with the embodiment that the second of second aspect is possible, embodiments provide the third of second aspect
Possible embodiment, wherein, described switching operating mechanism connects outlet or the inlet wire of described vertical capacitor by connecting line.
In conjunction with the embodiment that the second of second aspect is possible, embodiments provide the 4th kind of second aspect
Possible embodiment, wherein, also includes that waterproof cabinet body, described waterproof cabinet body are to set inside three open-door, and described waterproof cabinet body
Having lateral partitions, vertical capacitor described in three groups is mounted on described dividing plate, described MOV, described catalyst and described chopper
It is located on described waterproof cabinet body base plate.
A kind of capacitor series compensation device provided by the present invention and protection equipment thereof can produce following beneficial effect:
The capacitor series compensation device of embodiment of the present invention offer and protection equipment, capacitor series compensation device bag
Include: vertical capacitor, switching operating mechanism and protection equipment, vertical capacitor connects power transmission line by switching operating mechanism
Road.Wherein, the protection equipment of capacitor series compensation device vertical capacitor in protective condenser series compensation device,
Including MOV, damping reactor, high-speed switch and by-pass switch, MOV is parallel to the two ends of vertical capacitor, damping reactor with
Being parallel to the two ends of vertical capacitor after high-speed switch series connection, by-pass switch is parallel to the two ends of high-speed switch.When circuit goes out
Shove the most greatly or during high overvoltage, need to connect protection circuit by vertical capacitor short circuit, to protect vertical capacitor not hit
Wearing, first class of protection circuit is MOV, and safe secondary protection circuit is inductance and high-speed switch, and three-level protective circuit is by-pass switch.Pass through
Use technique scheme, alleviate that the electric energy loss that the cost of equipment maintenance that prior art exists is high, circuit runs is big, equipment
Stability and the technical problem of poor reliability.And then reduce the maintenance cost of equipment, reduce electric energy loss, raising that circuit runs
Stabilization of equipment performance and reliability.
Other features and advantages of the present invention will illustrate in the following description, and, partly become from description
Obtain it is clear that or understand by implementing the present invention.The purpose of the present invention and other advantages are at description, claims
And specifically noted structure realizes and obtains in accompanying drawing.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 shows a kind of capacitor series compensation device and the structure of protection equipment thereof that the embodiment of the present invention provided
Schematic diagram；
Fig. 2 shows in the capacitor series compensation device that the embodiment of the present invention is provided, before series compensation device application
After circuit and vector diagram.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
It is a part of embodiment of the present invention rather than whole embodiments.Generally real with the present invention illustrated described in accompanying drawing herein
The assembly executing example can be arranged with various different configurations and design.Therefore, below to the present invention's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Execute example.Based on embodiments of the invention, the institute that those skilled in the art are obtained on the premise of not making creative work
There are other embodiments, broadly fall into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
It addition, in describing the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in the present invention.
At present, along with the sharp increase of power consumption, the quality of power supply especially quality of voltage problem is increasingly sharpened, and seriously limits work
The development of agricultural.Existing Electric capacity compensation device is applied in system that is very fast in the idle change of electrical equipment or that have impact to load
Time, it will usually it is furnished with protection equipment, to realize system gain merit and reactive power flow controls flexibly, thus reaches raising line
The purposes such as road conveying capacity, the quality of power supply of improving, raising reliability.The performance of the Electric capacity compensation device protection equipment of prior art
Relatively low, when transmission line of electricity breaks down can not protective condenser well, and protect service life of equipment relatively low, and then
Improve amount of depreciation and the maintenance cost of protection equipment, be easily reduced the serviceability of capacitor, and then have impact on defeated potentially
The stability of electric line.
Based on this, the embodiment of the present invention provide a kind of capacitor series compensation device and protection equipment, with reduce set
Standby maintenance cost, reduce electric energy loss that circuit runs, improve stabilization of equipment performance and reliability.
See Fig. 1, it is shown that a kind of capacitor series compensation device of being provided of the embodiment of the present invention and protection equipment
Structural representation.
The protection equipment of a kind of capacitor series compensation device that the embodiment of the present invention is provided, for protective condenser string
Vertical capacitor in connection compensation device, including: (Metal Oxide Varistors is called for short metal-oxide varistor
MOV), it is called for short varistor, is the quasiconductor votage limit type antisurge device sintered for material with zinc oxide.When capacitor is thrown
Fashionable, bigger shoving can be produced；When capacitor excises, higher overvoltage can be produced；Capacitor needs before again putting into
It is discharged fully.When this situation causes fault, needing vertical capacitor short circuit quickly, MOV is parallel to vertical electricity
The two ends of container, it is possible to exceeding snap action when regulation limits at vertical capacitor voltage, therefore, MOV becomes capacitor
The first order is protected.
When line fault, fault current is relatively big, when trouble duration increases, if absorbed only with MOV protection
Short circuit current for a long time, then the rated capacity of required MOV can be excessive, the cost that directly results in MOV increases, and it is old
Changing also can be very fast.Damage for avoiding MOV overload to cause, also need to increase damping reactor and high-speed switch at MOV two ends,
Damping reactor is parallel to the two ends of vertical capacitor with high-speed switch after connecting.Said structure constitutes the second level of capacitor
Protection.
Further, when when fault, electric current persistently continues to increase, for protection high-speed switch, it is to avoid high-speed switch is because of the most negative
Lotus and damage, need to high-speed switch two ends increase by-pass switch, by-pass switch is parallel to the two ends of high-speed switch.Said structure group
The third level having become capacitor is protected.
The protection equipment of the capacitor series compensation device that the embodiment of the present invention provides also includes inductance, and inductance two ends are respectively
Connect damping reactor and high-speed switch, and by-pass switch is parallel to high-speed switch and inductance two ends.
In the protection equipment that the embodiment of the present invention provides, by-pass switch is chopper, and high-speed switch is catalyst.Chopper
Refer to close, carry and cut-off the electric current under normal loop condition, and can close, carry and cut-off within the time of regulation
The switching device of the electric current under abnormal loop condition.The movement time of bypass breaker is 30-100ms, its of completely closed it
Before then protected by MOV.Catalyst refers to utilize coil to flow through current induced magnetic field in industrial electro, makes contact closure, to reach
To the purpose controlling load appliance.After contactor coil is energized, coil current produces magnetic field, makes fixed core produce electromagnetic attraction
Attracting dynamic iron core, and band movable contact action: normally-closed contact disconnects, and normally opened contact closes, both are linkages.Work as coil blackout
Time, electromagnetic attraction disappears, and armature discharges under the effect of release spring, makes contact restore: normally opened contact disconnects, and normally-closed contact closes
Close.
In the protection equipment that the embodiment of the present invention provides, damping reactor is series varactor device.Electric capacity and inductance string
The combination of connection constitutes series resonant tank, and often there is the induction equipments such as a large amount of transformator and motor in power distribution network, because of
This, series compensation device has probability generation resonance and induction conductivity self-excitation when running.Access damping reactor and be prevented from humorous
There is self-excitation when starting in over-voltage breakdown vertical capacitor and induction conductivity that overcurrent of shaking produces, improve equipment can
By property.
The embodiment of the present invention provide capacitor series compensation device, including vertical capacitor, switching operating mechanism and
Above-mentioned protection equipment, vertical capacitor connects transmission line of electricity by switching operating mechanism.Protection equipment is connected in parallel on vertical capacitor
Two ends, to capacitor carry out three-level protective, wherein, meet the rapid overpressure of vertical capacitor using MOV as first class of protection
Protection, reduces the rated capacity of MOV further, using by-pass switch as three grades using high-speed switch and inductance as second class protection
Protection, substantially increases the reliability of equipment.
Fig. 2 shows in the capacitor series compensation device that the embodiment of the present invention is provided, before series compensation device application
After circuit and vector diagram.
According to the radial distribution line of distribution, the circuit before and after series compensation device application and vector diagram.Circuit first and last end
Line difference in voltage Δ V (the general vertical component of only consideration) is:
Wherein, ILFor line current, RLFor line resistance, XLFor circuit induction reactance, PLFor active power, QLFor reactive power.
In the case of inductive load, PLAnd QLJust being, terminal voltage is less than head end voltage.(add after adding series compensation device
Capacitive reactance XC), it can produce a voltage contrary with line reactance voltage, reduces the pressure drop of line reactance, and its value is:
Be equivalent to shorten the electrical distance of circuit, improve the load-bearing capacity of circuit.Thus first and last terminal voltage difference becomes:
The reactive compensation capacity that series compensation provides is:
The voltage compensated is directly proportional to line current, and square being directly proportional of capacity and electric current, therefore, series capacitor has
The advantage that " self adaptation " regulates, it is not necessary to as and frequent switching mending device, reduce the electric energy loss that circuit runs simultaneously.
In the capacitor series compensation device that the embodiment of the present invention provides, vertical capacitor is vertical capacitor group, if by
Dry vertical capacitor is formed by connecting.Under normal circumstances, the service life of capacitor is bypassed suddenly under overvoltage effect with it
Number of times, bypass time the number of times of the multiple of overvoltage, discharge current and the continuous discharge and recharge in the unit interval have close
Relation.The structure using vertical capacitor can improve the steady state stability limit of circuit, increases the service life of capacitor, improves
Circuit conveying capacity, reduces the electric energy loss in circuit transportation.
In the capacitor series compensation device that the embodiment of the present invention provides, vertical capacitor is connected with outlet by inlet wire,
Inlet wire and outlet are tin plating annealed copper strand wire, and tin plating annealed copper strand wire is fixed on one end of aluminum row, the other end of aluminum row by wire clamp
Connect the binding post of vertical capacitor.
In the capacitor series compensation device that the embodiment of the present invention provides, switching operating mechanism is disconnecting switch and throwing is moved back disconnected
Road device, switching operating mechanism connects outlet or the inlet wire of vertical capacitor by connecting line.When circuit breaks down, auto by pass
Vertical capacitor group and protection equipment thereof, automatically engage after time delay.The feelings such as application and reclosing, underloading, resonance, overcurrent-overvoltage
Condition, improves automation degree of equipment and system stability.The shell of switching operating mechanism has enough mechanical strengths, to bear
The mechanical force used or be likely encountered in handling process.Non-metal shell uses fire proofing.The gold that switching operating mechanism uses
Belonging to securing member and metallic supports all has suitable coating, coating has firm adhesive force, without peeling and obscission, employing
Securing member can guarantee that switching operating mechanism will not get loose because of vibration or shift in normal conditions of use.
The capacitor series compensation device that the embodiment of the present invention provides also includes sensor, specially voltage transformer, electricity
Current transformer and voltage transformer are held concurrently capacitor discharging circuit, sensor be connected to above-mentioned switching operating mechanism and vertical capacitor it
Between.In the capacitor series compensation device that the embodiment of the present invention provides, vertical capacitor component is two parts that capacity is identical, adopts
By the most forward and reverse way through same Current Mutual Inductance window in side, it is achieved that difference stream protection, improve capacity cell protection
Sensitivity.
The capacitor series compensation device that the embodiment of the present invention provides also includes waterproof cabinet body, and waterproof cabinet body is three open-door,
And inside waterproof cabinet body, it being provided with lateral partitions, three groups of vertical capacitors are mounted on dividing plate, and MOV, catalyst and chopper are located at
On waterproof cabinet body base plate.Waterproof cabinet body can provide the water proof and dust proof protection on basis for series compensation device and equipment thereof, enters one
Step improves the safety that equipment runs.
The capacitor series compensation device of embodiment of the present invention offer and protection equipment, capacitor series compensation device bag
Include: vertical capacitor, switching operating mechanism and protection equipment, vertical capacitor connects power transmission line by switching operating mechanism
Road.Wherein, the protection equipment of capacitor series compensation device vertical capacitor in protective condenser series compensation device,
Including MOV, damping reactor, high-speed switch and by-pass switch, MOV is parallel to the two ends of vertical capacitor, damping reactor with
Being parallel to the two ends of vertical capacitor after high-speed switch series connection, by-pass switch is parallel to the two ends of high-speed switch.When circuit goes out
Shove the most greatly or during high overvoltage, need to connect protection circuit by vertical capacitor short circuit, the most breakdown with protective condenser, one
Level protection circuit is MOV, and safe secondary protection circuit is inductance and high-speed switch, and three-level protective circuit is by-pass switch.By using
Technique scheme, alleviates that the electric energy loss that the cost of equipment maintenance that prior art exists is high, circuit runs is big, equipment is stable
Property and the technical problem of poor reliability.And then reduce the maintenance cost of equipment, reduce electric energy loss, raising equipment that circuit runs
Stability and reliability.
In embodiment provided herein, it should be understood that disclosed system and method, can be by other side
Formula realizes.System embodiment described above is only that schematically such as, the division of described unit, the most only one are patrolled
Volume function divides, and actual can have other dividing mode when realizing, the most such as, multiple unit or assembly can in conjunction with or can
To be integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some communication interfaces, device or unit or communication link
Connect, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.
It is last it is noted that the detailed description of the invention of embodiment described above, the only present invention, in order to the present invention to be described
Technical scheme, be not intended to limit, protection scope of the present invention is not limited thereto, although with reference to previous embodiment to this
Bright it is described in detail, it will be understood by those within the art that: any those familiar with the art
In the technical scope that the invention discloses, the technical scheme described in previous embodiment still can be modified or can be light by it
It is readily conceivable that change, or wherein portion of techniques feature is carried out equivalent；And these are revised, change or replace, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme, all should contain the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. the protection equipment of a capacitor series compensation device, it is characterised in that for protective condenser series compensation device
In vertical capacitor, including MOV, damping reactor, high-speed switch and by-pass switch；
Described MOV is parallel to the two ends of described vertical capacitor；
Described damping reactor is parallel to the two ends of described vertical capacitor with described high-speed switch after connecting；
Described by-pass switch is parallel to the two ends of described high-speed switch.
The protection equipment of capacitor series compensation device the most according to claim 1, it is characterised in that also include inductance,
Described inductance two ends connect described damping reactor and described high-speed switch respectively.
The protection equipment of capacitor series compensation device the most according to claim 2, it is characterised in that described by-pass switch
It is parallel to described high-speed switch and described inductance two ends.
The protection equipment of capacitor series compensation device the most according to claim 3, it is characterised in that described by-pass switch
For chopper, described high-speed switch is catalyst.
The protection equipment of capacitor series compensation device the most according to claim 1, it is characterised in that described damping reactance
Device is series varactor device.
6. a capacitor series compensation device, it is characterised in that including: vertical capacitor, switching operating mechanism and as power
Profit requires the protection equipment described in 1 to 5 any one, and described vertical capacitor connects power transmission line by described switching operating mechanism
Road.
Capacitor series compensation device the most according to claim 6, it is characterised in that described vertical capacitor is vertical electricity
Container group, is formed by connecting by some vertical capacitors.
Capacitor series compensation device the most according to claim 7, it is characterised in that described vertical capacitor passes through inlet wire
Being connected with outlet, described inlet wire and outlet are tin plating annealed copper strand wire, and described tin plating annealed copper strand wire is fixed on aluminum by wire clamp to be arranged
One end, described aluminum row the other end connect described vertical capacitor binding post.
Capacitor series compensation device the most according to claim 8, it is characterised in that described switching operating mechanism is by even
Wiring connects outlet or the inlet wire of described vertical capacitor.
Capacitor series compensation device the most according to claim 8, it is characterised in that also include waterproof cabinet body, described anti-
Water tank body is to be provided with lateral partitions inside three open-door, and described waterproof cabinet body, vertical capacitor described in three groups be mounted on described every
On plate, described MOV, described catalyst and described chopper are located on described waterproof cabinet body base plate.
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| CN201610857605.1A CN106208013A (en) | 2016-09-27 | 2016-09-27 | A kind of capacitor series compensation device and protection equipment thereof |
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| CN201610857605.1A CN106208013A (en) | 2016-09-27 | 2016-09-27 | A kind of capacitor series compensation device and protection equipment thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786652A (en) * | 2016-12-30 | 2017-05-31 | 无锡市锡容电力电器有限公司 | A kind of 10kV circuits series compensation device |
| CN109103862A (en) * | 2018-07-31 | 2018-12-28 | 中国南方电网有限责任公司超高压输电公司南宁局 | A kind of overvoltage protection system and method for mending damping circuit based on string |
| CN110021927A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | A kind of the control guard method and system of power distribution network serial connection capacitor compensating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106786652A (en) * | 2016-12-30 | 2017-05-31 | 无锡市锡容电力电器有限公司 | A kind of 10kV circuits series compensation device |
| CN110021927A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | A kind of the control guard method and system of power distribution network serial connection capacitor compensating device |
| CN109103862A (en) * | 2018-07-31 | 2018-12-28 | 中国南方电网有限责任公司超高压输电公司南宁局 | A kind of overvoltage protection system and method for mending damping circuit based on string |
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Application publication date: 20161207 |
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