CN107833782A - A kind of vacuum interrupter of the movable fracture of list - Google Patents
A kind of vacuum interrupter of the movable fracture of list Download PDFInfo
- Publication number
- CN107833782A CN107833782A CN201711236999.XA CN201711236999A CN107833782A CN 107833782 A CN107833782 A CN 107833782A CN 201711236999 A CN201711236999 A CN 201711236999A CN 107833782 A CN107833782 A CN 107833782A
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- fracture
- cylinder
- cover cylinder
- static
- static side
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention provides a kind of vacuum interrupter of the movable fracture of list, belong to breaker technical field.It solves the problems, such as that existing vacuum interrupter fixes fracture insulating properties difference.This vacuum interrupter fixes fracture including the movable fracture being made up of static contact and moving contact, the first fixation fracture and second being made up of radome, first fixation fracture and the second fixation fracture are used to recover voltage on the single movable fracture of shared, first fixation fracture is located at outside movable fracture, and second fixes fracture away from movable fracture.This vacuum interrupter fixes the good insulation preformance of fracture, can effectively avoid repeated breakdown.
Description
Technical field
The invention belongs to breaker technical field, is related to a kind of arc-chutes, and the vacuum of particularly a kind of movable fracture of list is gone out
Arc chamber.
Background technology
Vacuum circuit breaker is widely used in intermediate distribution system so that its mechanical life is long, non-maintaining, advantages of environment protection
The switching of middle reactive-load compensation capacitor group.Contact can produce shoving for high frequency high-amplitude in making process, and contact surface can be by
Prebreakdown electric arc produces more serious melting welding；During separating brake afterwards, because moving contact and static contact separation cause to melt
Welding zone domain is opened fracture, moving contact and the deterioration of static contact surface appearance.After drop-out current zero passage, arc-chutes both ends will be born
The recovery voltage of direct current property, for single-phase electricity container group or three-phase neutral grounding capacitor group, peak value recovers electricity
Pressure is up to 2 times of system voltage Um；For three-phase isolated neutral capacitor bank, peak recovery voltage is up to 2.5 times
Unite voltage Um.This causes vacuum circuit breaker that re-breakdown phenomenon, or even drop-out current zero passage may occur after capacity current is cut-off
The re-breakdown phenomenon that is delayed can still occur in several seconds afterwards.And overvoltage caused by repeated breakdown can badly damaged switch in itself and its
His power system device, or even cause casualties.Research shows, caused by during re-breakdown phenomenon and capacitor group switching
High frequency shove it is closely related, reason be in making process inrush phenomenon in the form of high-energy prebreakdown electric arc to contact surface produce
Raw serious Partial ablation, causes contact melting welding, destroys contact surface structure, substantially increases the field emission of contact surface
Coefficient.
At present, in view of the above-mentioned problems, Xi'an Communications University's Wang Jianhua, Liu Zhiyuan etc. propose following scheme：
A kind of a kind of vacuum interrupter " vacuum interrupter with fixed fracture " with fixed fracture【Publicity number：
CN104145318A】, disclose scheme：Vacuum interrupter with fixed fracture, vacuum can be formed with operating mechanism
On-load switch, vacuum contactor or vacuum circuit breaker, including the inside being made up of insulation crust, moved end end cap and static side end cap
For the confined space of vacuum state, be configured with movable fracture and the fixation fracture being made up of radome in confined space, it is described can
Dynamic circuit breaker mouth is made up of a pair of dynamic/static contacts, and vacuum interrupter is completed for carrying rated current, and for cutting off capacitive load
Interrupting performance；The fixed fracture is made up of a pair of radomes being fixed on moved end end cap and static side end cap, when composition is movable
When the dynamic/static contact of fracture reaches full gate away from position, just enter inside the radome of the fixed fracture of composition, now capacity current
The recovery voltage of direct current property after cut-offfing just is undertaken by fixed fracture, so as to realize the insulating properties of vacuum interrupter.
A kind of vacuum interrupter with short circuit interruption ability with fixed fracture is " with fixed fracture with short circuit current
The contact and vacuum interrupter of connecting-disconnecting function "【Publicity number：CN105679597A】, disclose scheme：With fixed fracture
Contact and vacuum interrupter with short circuit current connecting-disconnecting function, the contact includes one group of fixation fracture contact and one group can dynamic circuit breaker
Mouth contact, movable fracture contact are in inside fixed fracture contact in gate-dividing state；The vacuum interrupter is included with fixed disconnected
Mouth has contact, housing and the radome of short circuit current connecting-disconnecting function；Solve existing resultant field structure of contact terminal and other pins
The problems such as cut-offfing that the vacuum interrupter of design is complicated to capacity current, and lacking the magnetic field control of vacuum arc.
Although such scheme realizes electric field shielding and protection of the fixed fracture contact for movable fracture contact, avoid
Influence of the capacitive during closing the defects of movable fracture contact surface formation for breakdown, but can not ensure in capacitor bank
Switching during, transient process between dynamic/static contact does not have an impact the dielectric strength fixed fracture, also can not be effective
Ensure the dielectric strength of fixed fracture.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that one kind cuts electric capacity arc-chutes, and this is cut
Electric capacity arc-chutes technical problem to be solved is：How to ensure to fix the dielectric strength of fracture.
The purpose of the present invention can be realized by following technical proposal：A kind of vacuum interrupter of the movable fracture of list, including
The movable fracture being made up of static contact and moving contact, the first fixation fracture and second being made up of radome fix fracture, and it is special
Sign is that the first fixation fracture and the second fixation fracture are used to recover voltage on the single movable fracture of shared, described
First fixes fracture outside the movable fracture, and described second fixes fracture away from the movable fracture.
The operation principle of the vacuum interrupter of single movable fracture of the invention is as follows：When vacuum interrupter cut-offs, moving contact by
Gradually away from static contact, when moving contact reaches full gate away from position, because the first fixation fracture is located at outside movable fracture, now capacitive
The recovery voltage of direct current property after electric current cut-offs just is transferred to the first fixation fracture by movable fracture completely, because there is provided
Two fix fracture, and the second fixation fracture can share the first fixation fracture away from movable fracture, the second fixation fracture
Recover voltage, the recovery voltage on the first fixation fracture can be reduced, the not breakdown scaling loss of fracture is fixed in protection first, so as to really
The first integral insulation intensity for fixing fracture and the second fixation fracture is protected, vacuum interrupter capacity current is effectively reduced and cut-offs bang
Wear probability.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the radome includes static side cover cylinder, moved end cover cylinder
And the intermediate cap cylinder being arranged between static side cover cylinder and moved end cover cylinder, the intermediate cap cylinder have with the end of moved end cover cylinder apart
The nearly moved end of one segment distance and the nearly static side being separated by a certain distance with static side cover cylinder end, the nearly static side is away from nearly moved end, institute
State nearly moved end and the moved end cover cylinder forms first and fixes fracture, it is disconnected that the nearly static side and the static side cover cylinder form the second fixation
Mouthful, the static contact is located in the nearly moved end of intermediate cap cylinder, and the moving contact is when in most large opening positioned at moved end cover cylinder
In end.
The movable fracture formed between static contact and moving contact is caused in vacuum interrupter interrupting process largely to be carried
Charged metal particulate can spread and be attached on end composition the first fixation fracture of nearly moved end and moved end cover cylinder, then electric charge
Nearly static side is gradually transferred to by the nearly moved end of intershield cover, makes the total amount of electric charge of nearly moved end reduce, has been achieved in that first
Fixed fracture and the second fixation fracture undertake recovery voltage jointly, make the first fixation fracture from being hit because height recovers voltage
Wear, it is ensured that first, which fixes fracture and second, fixes the integral insulation intensity of fracture, wherein most large opening refers to moving contact from stationary contact
The ultimate range of head.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the bore of the nearly static side of the intermediate cap cylinder is more than institute
The bore of the end of static side cover cylinder is stated, the end sections of the static side cover cylinder stretch into the nearly static side of intermediate cap cylinder.Intermediate cap cylinder
The bore of nearly static side is more than the bore of the end of static side cover cylinder, is easy to the end of static side cover cylinder to stretch into the nearly static side of intermediate cap cylinder,
Ensure that there is fixed interval (FI) between the end of static side cover cylinder and the nearly static side of intermediate cap cylinder simultaneously, it is solid that the fixed interval (FI) forms second
Determine fracture, for sharing the recovery voltage being applied to when vacuum interrupter cut-offs on the first fixation fracture, realize good insulation
Performance.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the bore of the nearly static side of the intermediate cap cylinder is less than institute
The bore of the end of static side cover cylinder is stated, the end of static side cover cylinder is stretched into the nearly static side part of the intermediate cap cylinder.Intermediate cap cylinder
The bore of nearly static side is less than the bore of the end of static side cover cylinder, is easy to the nearly static side part of intermediate cap cylinder to stretch into the end of static side cover cylinder
Portion, while ensure there is fixed interval (FI) between the end of static side cover cylinder and the nearly static side of intermediate cap cylinder, the fixed interval (FI) form the
Two fix fracture, for sharing the recovery voltage being applied to when vacuum interrupter cut-offs on the first fixation fracture, realize good
Insulating properties.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the nearly static side of the intermediate cap cylinder has inside turnup
Spiral shape flange, the nearly moved end of the intermediate cap cylinder has the spiral shape flange of outside turnup, the end of the static side cover cylinder
Spiral shape flange with inside turnup, the end of the moved end cover cylinder have the spiral shape flange of outside turnup.Due to being spiral shell
Revolve shape flange, spiral shape flange is from starting electric to produce spiral along the helical flow of flange to electric charge full load electric current
Electric current, and then of short duration toroidal magnetic field is formed on whole flange, this toroidal magnetic field can hold onto free electric arc, and with
Of short duration variation magnetic field can be produced by exhausting for high-tension current, and this variation magnetic field can be accompanied by of short duration electric field and then prevent electric arc
Electric discharge, realize the purpose of fast arc extinction.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the vacuum interrupter includes insulation crust, described
Main cover cylinder is provided with outside first fixation fracture, the main cover cylinder is fixed on insulation crust, and the both ends of the main cover cylinder are prolonged respectively
Stretch to the middle part of intermediate cap cylinder and the middle part of moved end cover cylinder.Main cover cylinder can be prevented from the first metal particle for fixing fracture evaporation
It is attached on insulation crust, protects insulation crust, avoid the insulating properties of insulation crust from being affected, while extend it and use the longevity
Life.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the both ends of the main cover cylinder have aduncate arc
Shape flange.By setting arc flange, play a part of balanced vacuum interrupter internal electric field.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, outside the static side cover cylinder and outside the moved end cover cylinder
Portion is equipped with end shield cylinder, and medial surface of the end shield cylinder vacantly towards one end of intermediate cap cylinder is provided with spiral shape flange.Static side
The distribution of charges on the spiral flange surface of cover cylinder and end shield cylinder, moved end cover cylinder and end shield cylinder is almost uniform, static side cover cylinder and end shield
There's almost no electrical potential difference between cylinder, between moved end cover cylinder and end shield cylinder, thus between static side cover cylinder and end shield cylinder, moved end cover cylinder
Electric discharge phenomena are very weak between end shield cylinder, and the insulation crust of arc-chutes will not be made to lose insulation effect；Spiral flange also makes
The ability for obtaining vacuum interrupter drop-out current improves.
In a kind of vacuum interrupter of the above-mentioned movable fracture of list, the vacuum interrupter also includes static conductive rod, institute
State static contact to be fixed in vacuum extinction room by static conductive rod, the static conductive rod is provided with the contact shielding against static contact
Cover.Contact shield cover is set to realize effective protection to static contact side field strength on static conductive rod.
Compared with prior art, the present invention has advantages below：For the specific physical mistake during capacitor group switching
Journey, it will targetedly cut-off function and insulation function and separate, and be undertaken by moving contact and cut-off function, first, which fixes fracture and second, consolidates
Determine fracture shared and recover voltage, realize insulation function, can be applied in the switching of condensive load, insulation effect is not
Division is influenceed between by moving contact and static contact, and insulation effect is good, can effectively be avoided the situation of repeated breakdown from occurring, be extended
The service life of vacuum interrupter.
Brief description of the drawings
Fig. 1 is the structural representation of the vacuum interrupter of single movable fracture in the embodiment of the present invention.
In figure, 1, insulation crust；2nd, moved end end cap；3rd, static side end cap；4th, moving conductive rod；5th, static conductive rod；6th, moved end is covered
Cylinder；7th, intermediate cap cylinder；7a, nearly moved end；7b, nearly static side；8th, first fracture is fixed；9th, static side cover cylinder；10th, second fracture is fixed；
11st, moving contact；12nd, static contact；13rd, movable fracture；14th, main cover cylinder；14a, arc flange；15th, end shield cylinder；16th, contact shields
Cover；17th, spiral shape flange.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one：
As shown in figure 1, the vacuum interrupter of the movable fracture of this list include insulation crust 1, static side end cap 3, moved end end cap 2,
Static contact 12, moving contact 11, static conductive rod 5, moving conductive rod 4, static side cover cylinder 9, moved end cover cylinder 6, intermediate cap cylinder 7 and main shield
Cover.Insulation crust 1 is cylindrical in shape, and static side end cap 3 and moved end end cap 2 are arranged on the both ends of insulation crust 1, and three forms the chamber to seal
Cell structure.Static contact 12 is fixed in vacuum extinction room by static conductive rod 5, static contact 12, moving contact 11, static conductive rod 5, dynamic
Conducting rod 4, static side cover cylinder 9, moved end cover cylinder 6, intermediate cap cylinder 7 and main shield cover are arranged in vacuum extinction room.Moving contact 11
It is slidably connected at by moving conductive rod 4 on moved end end cap 2, static contact 12 is fixed on static side end cap 3 by static conductive rod 5, quiet
Conducting rod 5 is provided with the contact shield cover 16 against static contact 12.Static side cover cylinder 9 is fixed on static side end cap 3, moved end cover cylinder 6
It is fixed on moved end end cap 2.
Static contact 12 is located in the nearly moved end 7a of intermediate cap cylinder 7, and moving contact 11 covers when in most large opening positioned at moved end
In the end of cylinder 6, static contact 12 and moving contact 11 form movable fracture 13.Intermediate cap cylinder 7 is arranged on static side cover cylinder 9 and covered with moved end
Between cylinder 6, the intermediate cap cylinder 7 have with the end of moved end cover cylinder 6 nearly moved end 7a a distance away and with the end of static side cover cylinder 9
The nearly static side 7b that portion is separated by a certain distance, and nearly static side 7b is away from nearly moved end 7a.The cylinder end of nearly moved end 7a and moved end cover is formed
First fixes fracture 8, and the end of nearly static side 7b and static side cover cylinder 9 forms second and fixes fracture 10, and the first fixation fracture 8 is located at can
Outside dynamic circuit breaker mouth 13, second fixes fracture 10 fixes fracture 10 and holds jointly away from movable fracture 13, the first fixation fracture 8 and second
Load vacuum interrupter produces the recovery voltage on movable fracture 13 when cut-offfing.
The nearly static side 7b of intermediate cap cylinder 7 bore is more than the bore of the end of static side cover cylinder 9, the end portion of static side cover cylinder 9
Divide the nearly static side 7b for stretching into intermediate cap cylinder 7.The nearly static side 7b of intermediate cap cylinder 7 has the spiral shape flange 17 of inside turnup, middle
The nearly moved end 7a of cover cylinder 7 has the spiral shape flange 17 of outside turnup, and the end of static side cover cylinder 9 has the spiral shape of inside turnup
Flange 17, the end of moved end cover cylinder 6 have the spiral shape flange 17 of outside turnup.
Main cover cylinder 14 is arranged on outside the first fixation fracture 8, and main cover cylinder 14 is fixed on the madial wall of insulation crust 1,
The both ends of main cover cylinder 14 each extend over the middle part to the middle part of intermediate cap cylinder 7 and moved end cover cylinder 6, the both ends of main cover cylinder 14 set to
The arc flange 14a of interior bending, balanced vacuum interrupter internal electric field is played by arc flange 14a.
End shield cylinder 15 is equipped with outside the outside of static side cover cylinder 9 and moved end cover cylinder 6, end shield cylinder 15 is vacantly towards intermediate cap cylinder 7
The medial surface of one end be provided with spiral shape flange 17.The spiral shell of static side cover cylinder 9 and end shield cylinder 15, moved end cover cylinder 6 and end shield cylinder 15
The distribution of charges on conpound salto side surface is almost uniform, between static side cover cylinder 9 and end shield cylinder 15, between moved end cover cylinder 6 and end shield cylinder 15
There's almost no electrical potential difference, thus between static side cover cylinder 9 and end shield cylinder 15, electric discharge phenomena between moved end cover cylinder 6 and end shield cylinder 15
It is very weak, the insulation crust 1 of arc-chutes will not be made to lose insulation effect；Spiral flange also causes vacuum interrupter drop-out current
Ability improve, realize fast arc extinction.
Embodiment two
The structure of the present embodiment and the vacuum interrupter in embodiment one is essentially identical, and difference is：Intermediate cap cylinder 7
Nearly static side 7b bore be less than static side cover cylinder 9 end bore, intermediate cap cylinder 7 nearly static side 7b part stretch into static side cover cylinder
9 end.
The operation principle of the vacuum interrupter of single movable fracture of the invention is as follows：When vacuum interrupter cut-offs, moving contact 11
Static contact 12 is gradually distance from, in this process a large amount of metal particles of the end release of moving contact 11；Moving contact 11 reach full gate away from
During position, moving contact 11 is reduced in moved end cover cylinder 6, because the first fixation fracture 8 is located at outside movable fracture 13, when moving contact 11
Between static contact 12 when opening away from beginning that fracture 8 is fixed more than first, a large amount of of the end release of moving contact 11 carry electric charge
Metal particle is attached to the surface of the first fixation fracture 8, makes the recovery voltage rise added on the first fixation fracture 8, capacity current
The recovery voltage of generation direct current property after cut-offfing just is transferred to the first fixation fracture 8 by movable fracture 13 completely, due to setting
Second fixes fracture 10, and this second fixes fracture 10 away from movable fracture 13, and the electric charge on the first fixation fracture 8 can turn
Move on on the second fixation fracture 10, so as to reduce the total amount of electric charge on the first fixation fracture 8, make extensive on the first fixation fracture 8
Complex voltage is reduced, and the not breakdown scaling loss of fracture 8 is fixed in protection first, so that it is guaranteed that first fixes the fixation fracture of fracture 8 and second
10 integral insulation intensity, effectively reduce vacuum interrupter capacity current and cut-off repeated breakdown probability.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
1. a kind of vacuum interrupter of the movable fracture of list, including the movable fracture being made up of static contact (12) and moving contact (11)
(13), first be made up of radome fixes fracture (8) and second and fixes fracture (10), it is characterised in that described first fixes
Fracture (8) and the second fixation fracture (10) are used to recover voltage on the single movable fracture (13) of shared, and described first fixes
Fracture (8) is outside positioned at the movable fracture (13), and described second fixes fracture (10) away from the movable fracture (13).
2. the vacuum interrupter of the movable fracture of a kind of list according to claim 1, it is characterised in that the radome includes
Static side cover cylinder (9), moved end cover cylinder (6) and the intermediate cap cylinder (7) being arranged between static side cover cylinder (9) and moved end cover cylinder (6), it is described
Intermediate cap cylinder (7) have with the end of moved end cover cylinder (6) nearly moved end (7a) a distance away and with static side cover cylinder (9) end
The nearly static side (7b) being separated by a certain distance, the nearly static side (7b) the nearly moved end (7a) and described are moved away from nearly moved end (7a)
End shield cylinder (6) forms first and fixes fracture (8), and the nearly static side (7b) and the static side cover cylinder (9) form second and fix fracture
(10) static contact (12) is located in the nearly moved end (7a) of intermediate cap cylinder (7), and the moving contact (11) is in most large opening
When positioned at moved end cover cylinder (6) end in.
A kind of 3. vacuum interrupter of the movable fracture of list according to claim 2, it is characterised in that the intermediate cap cylinder
(7) bore of nearly static side (7b) is more than the bore of the end of the static side cover cylinder (9), the end portion of the static side cover cylinder (9)
Divide the nearly static side (7b) for stretching into intermediate cap cylinder (7).
A kind of 4. vacuum interrupter of the movable fracture of list according to claim 2, it is characterised in that the intermediate cap cylinder
(7) bore of nearly static side (7b) is less than the bore of the end of the static side cover cylinder (9), the nearly static side of the intermediate cap cylinder (7)
(7b) partly stretches into the end of static side cover cylinder (9).
A kind of 5. vacuum interrupter of the movable fracture of list according to Claims 2 or 3 or 4, it is characterised in that the centre
The nearly static side (7b) of cover cylinder (7) has the spiral shape flange (17) of inside turnup, nearly moved end (7a) tool of the intermediate cap cylinder (7)
There is the spiral shape flange (17) of turned-out volume, the end of the static side cover cylinder (9) has the spiral shape flange (17) of inside turnup,
The end of the moved end cover cylinder (6) has the spiral shape flange (17) of outside turnup.
A kind of 6. vacuum interrupter of the movable fracture of list according to Claims 2 or 3 or 4, it is characterised in that the vacuum
Arc-chutes include insulation crust (1), are provided with main cover cylinder (14) outside the first fixation fracture (8), the main cover cylinder (14) is solid
It is scheduled on insulation crust (1), the both ends of the main cover cylinder (14) are each extended over to the middle part of intermediate cap cylinder (7) and moved end cover cylinder
(6) middle part.
A kind of 7. vacuum interrupter of the movable fracture of list according to claim 6, it is characterised in that the main cover cylinder (14)
Both ends there is aduncate arc flange (14a).
A kind of 8. vacuum interrupter of the movable fracture of list according to Claims 2 or 3 or 4, it is characterised in that the static side
End shield cylinder (15) is equipped with outside cover cylinder (9) outside and the moved end cover cylinder (6), the end shield cylinder (15) is vacantly towards intermediate cap
The medial surface of one end of cylinder (7) is provided with spiral shape flange (17).
9. the vacuum interrupter of the movable fracture of a kind of list according to claim 1 or 2 or 3 or 4, it is characterised in that described
Vacuum interrupter also includes static conductive rod (5), and the static contact (12) is fixed in vacuum extinction room by static conductive rod (5),
The static conductive rod (5) is provided with the contact shield cover (16) against static contact (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236999.XA CN107833782B (en) | 2017-11-30 | 2017-11-30 | Vacuum arc-extinguishing chamber with single movable fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236999.XA CN107833782B (en) | 2017-11-30 | 2017-11-30 | Vacuum arc-extinguishing chamber with single movable fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107833782A true CN107833782A (en) | 2018-03-23 |
| CN107833782B CN107833782B (en) | 2020-07-03 |
Family
ID=61646698
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236999.XA Active CN107833782B (en) | 2017-11-30 | 2017-11-30 | Vacuum arc-extinguishing chamber with single movable fracture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081493A (en) * | 2020-01-16 | 2020-04-28 | 郑州畿安龙高压电气有限公司 | Dynamic electric field voltage-sharing capacitor sleeve |
| CN112382527A (en) * | 2020-12-01 | 2021-02-19 | 郑州大学 | Self-voltage-sharing control method for dynamic charge compensation of multi-break vacuum circuit breaker |
| CN112837966A (en) * | 2020-12-29 | 2021-05-25 | 国网宁夏电力有限公司电力科学研究院 | Arc extinguish chamber structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112382527B (en) * | 2020-12-01 | 2023-12-19 | 郑州大学 | Self-equalizing control method for dynamic charge compensation of multi-fracture vacuum circuit breaker |
| CN112837966A (en) * | 2020-12-29 | 2021-05-25 | 国网宁夏电力有限公司电力科学研究院 | Arc extinguish chamber structure |
| CN112837966B (en) * | 2020-12-29 | 2022-10-21 | 国网宁夏电力有限公司电力科学研究院 | Arc extinguish chamber structure |
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| CN107833782B (en) | 2020-07-03 |
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Denomination of invention: A single movable fracture vacuum arc extinguishing chamber Effective date of registration: 20230905 Granted publication date: 20200703 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: ZHEJIANG ZIGUANG ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2023980055276 |
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