CN105097327B - Use the medium voltage electric distribution cell of break vacuum technology - Google Patents
Use the medium voltage electric distribution cell of break vacuum technology Download PDFInfo
- Publication number
- CN105097327B CN105097327B CN201510178379.XA CN201510178379A CN105097327B CN 105097327 B CN105097327 B CN 105097327B CN 201510178379 A CN201510178379 A CN 201510178379A CN 105097327 B CN105097327 B CN 105097327B
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- China
- Prior art keywords
- breaker
- vacuum tube
- item
- actuation means
- switching
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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
- H01H33/666—Operating arrangements
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
-
- 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/125—Load break switches comprising a separate circuit breaker
- H01H33/126—Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The present invention relates to a kind of middle Piezoelectric switches devices, it includes per at least two switching device of stage, each switching device includes breaker, described device is characterized in that, it includes branch circuit (8), the vacuum tube (9) for wherein providing switching is placed in the branch circuit, the vacuum tube (9) can by respectively from different breakers (5, 6, 7) associated several actuation means (12, 13, 14) intermediary of one of them activates, in this way, it is inactive that the branch, which is under ongoing operating conditions, and, pass through gradual transmission of the electric current from the line including breaker (5) to branch line (8) in opening procedure, only when one of breaker has begun its open movement, the vacuum tube is moved by electric current, and, aforementioned actuation means (12, 13, 14) Movable part be mechanically and electrically connected to each other by connecting rod (18).
Description
Technical field
The present invention relates to middle Piezoelectric switches devices comprising every at least two switching device of phase (phase), each switch
Device includes the breaker being placed in electric wire, and the breaker includes the first contact of referred to as fixed contact and is referred to as movable
Second contact of contact, one of the two contacts are electrically connected to current-carrying item, and another contact, all switches are filled
Set respectively, be connected to different circuits, each switching device includes device for executing break function and opens for providing
Close the device of function.
Background technique
From the principal manufacturer of medium-voltage switchgear the 1970s, it is known that, the machinery of electrical contact divides in SF6
From technology, so that the electric current of switch is distributed in switching.
This solution has lot of advantages in terms of facility compact, cost and performance.These advantages, mainly by
In the excellent properties of SF 6: dielectric strength, thermal conductivity, chemical stability, electronegativity, non-toxic etc..
However, the shortcomings that SF6 gas is, it is a kind of gas with very high greenhouse effects.
It is also known that utilizing vacuum tube, its use can switch height in the case where not needing to be placed in SF6
Electric current, but the latter is never used for handoff functionality, because theirs is with high costs.
It is known that patent FR 2937786 describes that the principle of this technical costs can be reduced.The dress described in that patent
It sets and the vacuum tube of switching is provided including a branch is placed in the branch.This branch be in ongoing operation it is invalid,
And and if only if when breaker has begun its open movement, the gradually transmission by electric current from main line to branch, electric current pass through this
A point.Since the pipe is generally in stationary state, it does not need the electricity constraint being applicable according to operating conditions in progress
Carry out scale cun with dielectric constraint.Therefore, this system can be used for being placed in all switches in common case and for all
Stage.
But in terms of cost, such system is not close to the cost of the switch using SF6 gas.
Summary of the invention
The invention proposes a kind of middle Piezoelectric switches devices, with low system while it can not be used together with SF6
It makes and operating cost.
For this purpose, the present invention relates to a kind of middle Piezoelectric switches device of aforementioned type, this device is characterized in that it includes
Branch circuit, wherein the vacuum tube for providing switching is placed in the branch circuit, the vacuum tube can by respectively from it is different
The intermediary of one of them (intermediary) of the associated several actuation means of breaker activates, in this way, the branch is
Inactive under ongoing operating conditions, also, by opening procedure electric current from include breaker line to
The gradual transmission of branch line, only when one of breaker has begun its open movement, the vacuum tube is moved by electric current
It is dynamic, also, the movable part of aforementioned actuation means is mechanically and electrically connected to each other by connecting rod, in this way, aforementioned actuating
The actuation strip of one of them of device carrys out the actuating of all actuation means, also, during opening the electric current from institute
The part for being transmitted through item for stating the line of breaker to the branch line realizes, be located at during opening with the breaker
Between the associated actuation means and the branch line.
Due to these features, there is reduced cost, can be avoided the middle Piezoelectric switches device generation using SF6 gas.
According to another feature, at least one of above-mentioned breaker is rotary-type or driven in translation.
According to another special characteristic, above-mentioned breaker or each of which are associated with actuation means, the actuating
Device includes the part of item, is connected to the fixed branch of described device near wherein one its end in articulated manner
Seat, and above-mentioned item is connected between its two ends, the second end and the open circuit of the part of the item by it
The movable contact of device matches.
According to another special characteristic, all breakers are rotary-type and drive in the same rotational direction.
According to a specific embodiment, above-mentioned branch circuit and the switching device including the vacuum tube are wherein
One associated, and the actuation means associated with the breaker of the switching device are directly connected to the activity touching of the pipe
Head, at the point that the tie point with line b to the item that correspond to the breaker essentially corresponds to, the pipe is consolidated
Fixed contact is mechanically and electrically connected to above-mentioned current-carrying item.
According to another embodiment, the above-mentioned branch circuit including the vacuum tube is arranged distant from the switching device,
Associated different actuation means are mechanically and electrically connected to the movable contact of the pipe respectively from different breakers
Driving device.
According to a special characteristic, which includes 3 switching devices arranged side by side, and the pipe be located at other two
The switching device of the centre of a switching device is associated.
According to a special characteristic, one or each switching device are middle Piezoelectric switches.
Detailed description of the invention
Referring to the attached drawing only provided by way of example, other advantages and features of the invention are in following detailed description
In will be apparent, in which:
Fig. 1 to Fig. 4 is schematically shown the middle Piezoelectric switches device of particular implementation according to the present invention, packet
Three switches in different positions are included,
- Fig. 1 shows the device and is in all positions for switching and being closed,
Fig. 2 shows the device during first switch switches,
- Fig. 3 shows the device after switching, electric current entirely through pipe,
- Fig. 4 is shown during switching through pipe, which is in the position of first switch opening, and
- Fig. 5 shows the device that first switch is in the position of off voltage.
Specific embodiment
The voltage electrical distribution board T in it can be seen in the figure, for network each electric phase (electrical phase),
The distribution board includes three electric switches 1,2,3 being respectively mounted on three electric wire a, b, c parallel to each other side by side, and it
Extend on the longitudinally for being substantially perpendicular to distribution bar 4.
In this particular embodiment, the first two switch 1,2 forms secondary power distribution circuit and third switch 3 is user
The power switch of electric device.
Each switch 1,2,3 include breaker 5,6,7 comprising be electrically connected to item 4 fixed contact 5a, 6a, 7a and
Rotating vane by being electrically connected to circuit is formed by movable contact 5b, 6b and 7b.
It is at the point of substantially the same level with the fixed contact 6a of the second breaker 6 with the company contact of item 4, second
A switch 2 is associated with including the branch circuit 8 of vacuum tube 9, and vacuum tube 9 includes the fixed contact 9a for being electrically connected to item 4, and
It is mechanically and electrically connected to the movable contact 9b of so-called second actuation means 13, is mechanically and electrically connected to
One actuation means 12 and third actuation means 14, as described below.
These three actuation means 12,13,14 each be configured so that a part of item 15,16,17 passes through one end thereof
It is hingedly mounted on the hold-down support 20 of the chassis of device, and is hingedly installed to and is mechanically and electrically by its opposed end
Bar 18, the square upward sliding for extending it in the longitudinally for being arranged essentially parallel to item 4 relative to the chassis.
The support 19 of the movable contact 9b of the pipe 9 is also hingedly connected to relevant to second breaker 6
The part of bar 16, at the point between two ends of the part in item 16, in this way, the part of item 16 is inverse
It is conterclockwise to rotate the closing for leading to the contact of pipe 9.
The running of described device will be illustrated below with reference to attached drawing.
In normal operation, as shown in figure 1 as indicated, all switches 1,2 and 3 are closed, so that supply is opened by the first two
Close the secondary power distribution circuit and the power switch that the client constituted is switched by third that 1,2 are constituted.In the example embodiment
In, it will be considered that, first switch 1 is directly provided by network, and itself supply is located at the downstream portion of the network on the right of it
Point.About first switch 1, the path of electric current is indicated by means of an arrow.The electric current for flowing through other two switches is not shown.
As shown in Fig. 2, the switching of electric current occurs in first switch 1 when starting to open, i.e., such stage/phase
(phase): the electric current of the movable contact 5b from the first breaker 5 will pass through the fixed contact 5a of the first breaker simultaneously simultaneously
And the part of the item 16 by so-called second actuation means associated with the second breaker 6, by pass through item 15 first
Partially, the interconnecting piece 18a of the bar 18 between two parts of item 15,16 associated with the first two breaker respectively, so
The second part for passing through item 16 afterwards is guided to pipe 9 later to be incorporated to busbar connector 4.The movable contact of first breaker 5
The rotary motion of 5b in the clockwise direction caused the part of item, especially item 16 second part in the counterclockwise direction
Rotation, the movable contact of this driving vacuum tube is to closed position.
During 1 opening procedure of first switch, the fixed contact of first breaker 5 fixed contact 5a associated with it is complete
It is fully separating, as shown in Figure 3.In this stage, therefore electric current only passes through the contact 9 of vacuum tube.
When the movable contact 5b of the breaker 5 fixed contact 5a associated there is remote enough, with 6 phase of the second breaker
Associated second actuation means 13 will start to open the contact of vacuum tube, by a kind of herein without description but in document FR
2937786 systems illustrated, this will have the effect of cutting off electric current quickly, this position is shown in FIG. 4.
During switching opening procedure, the movable contact 5b of breaker 5 will be from the item 15 of first actuation means 12
Part discharges, the final position of the opening until reaching it, the voltage between this upstream and downstream side that will ensure to switch
Disconnection, this position is shown in FIG. 5.During this step, due to the presence of unshowned reset spring, item 15,16,17
Part will then restore their initial positions as shown in Figure 1.
Shutoff operation will realize that (this will not be to the item of corresponding actuation means and manipulating breaker in the opposite direction
Part generate any influence), until movable contact 5b is in contact with fixed contact 5a.
The operation of other two switches 2,3 will not be described, because identical with 1, the 5 of first switch.
The present invention can be advantageously utilised in the distribution board including switching between 2 to 5.
In addition it is also possible to consider by include vacuum tube the device be incorporated into case from anywhere in (therefore do not need and open
It closes associated).In this instance, mechanical actuation means then will advantageously be placed on all of unit/battery (cell) and open
It shuts, then the latter is electrically and mechanically connected to the driving device of the movable contact of the pipe.Although heavier, this
Kind alternative solution is advantageous in the case where not expecting multiple constraint switch region.This will reduce the width of unit to it
The damage of height, and this is for the earth coverage area of unit and less important.
Due to the present invention, the cost of vacuum switch appreciably reduces, because every phase is used only as above in distribution board
Individual system described in patent is stated, other functions are only equipped with individual mechanical actuating system.In order to allow to be not equipped with vacuum
Each movable part of actuating system is connected to each other by the cutting of electric current in the switch of pipe, mechanical connection (item).Therefore, work as effect
When on one system, all other systems (including a system, the system include vacuum tube) are activated simultaneously.
The present invention is certainly not limited to only through the exemplary described and illustrated embodiment provided.
Thus, for example, even if in previously described and embodiment that is showing, the complete open relation including vacuum tube
System is added in center switch, with these switches another it is associated can be same good.
In contrast, the present invention includes all equivalence techniques and their combination of described device, if these groups
Conjunction is substantially generated according to it.
Claims (8)
1. a kind of middle Piezoelectric switches device, including at least two switching device of every phase, each switching device includes being placed in electric wire
In breaker, the breaker includes the first contact of referred to as fixed contact and the second contact of referred to as movable contact,
One of them in the two contacts is electrically connected to current-carrying item, and another contact, all switching devices is separately connected
To different circuits, each switching device includes device for executing cutting function and for providing the device of handoff functionality,
It is characterized in that, it includes branch circuit (8), wherein the vacuum tube (9) for providing switching is placed in the branch circuit, it is described true
Blank pipe (9) can by respectively from the associated several actuation means (12,13,14) of different breakers (5,6,7) wherein one
A or other intermediary actuatings, in this way, it is inactive that the branch, which is under ongoing operating conditions, also, pass through
Electric current is from including the line of breaker (5) to the gradual transmission of branch circuit (8) in opening procedure, only when one of open circuit
Device when having begun its open movement the vacuum tube moved by electric current, also, the activity of aforementioned actuation means (12,13,14)
Part is mechanically and electrically connected to each other by connecting rod (18), in this way, wherein the one of aforementioned actuation means (12,13,14)
A actuation strip carrys out the actuating of all actuation means, also, during opening the electric current from the breaker (5)
Realize that the part is located at open in the part (18a) for being gradually transmitted through connecting rod (18) of line to the branch circuit (8)
In the process between the actuation means (12) associated with breaker (5) and the branch circuit (8).
2. middle Piezoelectric switches device according to claim 1, which is characterized in that in above-mentioned breaker (5,6,7) at least
One is rotary-type or driven in translation.
3. middle Piezoelectric switches device according to claim 2, which is characterized in that above-mentioned breaker (5,6,7) or they
Each associated with actuation means (12,13,14), which includes a part of item (15,16,17), with hinge
The mode connect is connected to the hold-down support (20) of the switching device near one end thereof, and its two ends it
Between be connected to above-mentioned connecting rod (18), the part of the item passes through its second end and the activity of the breaker (5,6,7)
Contact (5b, 6b, 7b) matches.
4. the middle Piezoelectric switches device according to either one or two of preceding claims, which is characterized in that all breaker (5,
6,7) it is rotary-type and drives in the same rotational direction.
5. according to claim 1 to 3 described in any item middle Piezoelectric switches devices, which is characterized in that including the vacuum tube
(9) one of them associated, open circuit with the switching device of above-mentioned branch circuit (8) and the switching device (1,2,3)
The associated actuation means (12,13,14) of device (5,6,7) are directly connected to the movable contact (9b) of the vacuum tube (9),
At the point that the tie point with the line (b) and the current-carrying item (4) that correspond to the breaker (6) essentially corresponds to, institute
The fixed contact (9a) for stating vacuum tube (9) is mechanically and electrically connected to above-mentioned current-carrying item (4).
6. according to claim 1 to 3 described in any item middle Piezoelectric switches devices, which is characterized in that including the vacuum tube
(9) above-mentioned branch circuit (8) is arranged from the switching device (1,2,3), from different breaker (5,6,7) difference phases
Associated different actuation means (12,13,14) are mechanically and electrically connected to the drive of the movable contact of the vacuum tube (9)
Dynamic device.
7. according to claim 1 to 3 described in any item middle Piezoelectric switches devices, which is characterized in that it include be arranged side by side
3 switching devices (1,2,3), and the vacuum tube (9) be located at other two switching devices (1,3) centre switch
Device (2) is associated.
8. according to claim 1 to 3 described in any item middle Piezoelectric switches devices, which is characterized in that one or each switch
Device (1,2,3) is middle Piezoelectric switches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1454320A FR3021159B1 (en) | 2014-05-15 | 2014-05-15 | MEDIUM VOLTAGE ELECTRIC CUTTING APPARATUS USING VACUUM CUTTING TECHNIQUE |
| FR1454320 | 2014-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105097327A CN105097327A (en) | 2015-11-25 |
| CN105097327B true CN105097327B (en) | 2019-07-12 |
Family
ID=51570535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178379.XA Active CN105097327B (en) | 2014-05-15 | 2015-04-15 | Use the medium voltage electric distribution cell of break vacuum technology |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2945176B1 (en) |
| CN (1) | CN105097327B (en) |
| ES (1) | ES2606198T3 (en) |
| FR (1) | FR3021159B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809116B (en) * | 2017-11-17 | 2021-04-27 | 国网山东省电力公司淄博供电公司 | Three-phase unbalance phase modulation switch for low-voltage line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728115A (en) * | 2008-10-29 | 2010-06-09 | 阿海珐输配电股份公司 | A power line current interrupter having vacuum switch chamber |
| EP2565897A1 (en) * | 2011-08-29 | 2013-03-06 | Hitachi Ltd. | Switchgear and switchgear operating method |
| CN103022908A (en) * | 2011-09-27 | 2013-04-03 | 施耐德电器工业公司 | Medium voltage power distribution cabinet |
-
2014
- 2014-05-15 FR FR1454320A patent/FR3021159B1/en active Active
-
2015
- 2015-03-09 EP EP15158165.9A patent/EP2945176B1/en active Active
- 2015-03-09 ES ES15158165.9T patent/ES2606198T3/en active Active
- 2015-04-15 CN CN201510178379.XA patent/CN105097327B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728115A (en) * | 2008-10-29 | 2010-06-09 | 阿海珐输配电股份公司 | A power line current interrupter having vacuum switch chamber |
| EP2565897A1 (en) * | 2011-08-29 | 2013-03-06 | Hitachi Ltd. | Switchgear and switchgear operating method |
| CN103022908A (en) * | 2011-09-27 | 2013-04-03 | 施耐德电器工业公司 | Medium voltage power distribution cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2606198T3 (en) | 2017-03-23 |
| FR3021159B1 (en) | 2016-05-06 |
| CN105097327A (en) | 2015-11-25 |
| EP2945176A1 (en) | 2015-11-18 |
| EP2945176B1 (en) | 2016-09-14 |
| FR3021159A1 (en) | 2015-11-20 |
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