CN102684080B - For the earthed switch of distribution panelboard - Google Patents
For the earthed switch of distribution panelboard Download PDFInfo
- Publication number
- CN102684080B CN102684080B CN201210054185.5A CN201210054185A CN102684080B CN 102684080 B CN102684080 B CN 102684080B CN 201210054185 A CN201210054185 A CN 201210054185A CN 102684080 B CN102684080 B CN 102684080B
- Authority
- CN
- China
- Prior art keywords
- drive rod
- movable contactor
- reinforcing rib
- earthed switch
- distribution panelboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
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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
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
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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
- H01H33/02—Details
- H01H33/42—Driving mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
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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
- H01H33/02—Details
- H01H33/42—Driving mechanisms
- H01H2033/426—Details concerning the connection of the isolating driving rod to a metallic part
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of earthed switch for distribution panelboard, described earthed switch comprises: multiple fixed contact, and it is connected to the power supply side terminal at the rear portion being arranged on described distribution panelboard; Multiple movable contactor, it is arranged with ground connection accordingly with described multiple fixed contact, and each movable contactor has and the contact position of corresponding fixed contact and disconnected position; Driving shaft, it is rotatably arranged in the rear portion of described distribution panelboard; Multiple drive rod, it is arranged accordingly with described multiple movable contactor, and each drive rod has the one end being connected to described driving shaft and the other end being connected to corresponding movable contactor, described multiple drive rod drives described multiple movable contactor in response to the rotation of described driving shaft, rotates to described contact position or described disconnected position to make movable contactor; And reinforcing rib, it makes multiple drive rod integrally be interconnected, and wherein reinforcing rib allows drive rod mutually support and external force is disperseed.
Description
Technical field
This specification relates to a kind of earthed switch for distribution panelboard, and it is reinforced to prevent the distortion of earthed switch because causing for driving the electromagnetic repulsion force of the driving shaft of earthed switch.
Background technology
Circuit breaker refers to the device of a kind of normal load for commutation circuit or disengagement failure electric current.Such as, vacuum circuit-breaker carries out arc extinguishing to the electric arc produced when commutation circuit or disengagement failure electric current in vacuum interrupter, thus open circuit rapidly.Vacuum circuit-breaker with multiple for drive or control power station, transformer station etc. and for drive motor etc. electric equipment together be arranged on distribution panelboard.
In vacuum circuit-breaker, about the structure of extraction type vacuum circuit-breaker, when it is housed inside in distribution panelboard, first the main body of circuit breaker is received in the bracket, is then connected to the main circuit of distribution panelboard.Therefore, when the main body of circuit breaker being recovered in support or when extracting out from support, circuit breaker is connected with the main circuit of distribution panelboard or separates.
When main body being regained or extracting out, vacuum circuit-breaker has as upper/lower positions: run location, and in this position, the power supply side terminal of circuit breaker and load side terminal are connected to power supply side terminal and the load side terminal of support, thus allows the supply of voltage and electric current; And test position, in this position, the power supply side terminal of circuit breaker and load side terminal are separated with the above-mentioned terminal of support, thus only allow operational testing.
At run location, the fault current of disrupts when being short-circuited fault and earth fault.But in order to block the fault current produced when circuit breaker is in test position, earthed switch is arranged on the rear portion of distribution panelboard to ensure safety.Earthed switch can only work when circuit breaker is in test position, and blocks this type of short circuit current and earth fault current under the mobile state being arranged in the fixed contact (fixed contact) at distribution panelboard rear portion with contact of its movable contactor (movable contact).
Fig. 1 shows the rear side of typical distribution panelboard.The rear side of distribution panelboard 1 is shown having: fixed contact 3, and it is connected to power supply side terminal 2; With movable contactor 6, it is rotatably connected to driving shaft 4 via drive rod 5.Fig. 1 shows the earthed switch be under non-mode of operation.
Fig. 2 shows the rear side of the distribution panelboard when earthed switch is operated.In fig. 2, movable contactor 6 rotates to contact fixed contact 3.Therefore, this electric current capable of blocking when aftercurrent or fault currents flow.
Fig. 3 shows driving shaft 4 and the drive rod 5 of the operation for allowing movable contactor 6.When at movable contactor 6 in response to after being contacted fixed contact 3 by the earthed switch that operates during fault currents flow, or when movable contactor 6 contacts fixed contact 3 after applying electric current, between contact, create electromagnetic repulsion force.In this case, high fault current causes large electromagnetic repulsion force, therefore for driving the driving shaft 4 of movable contactor 6 or drive rod 5 can be out of shape due to electromagnetic repulsion force.Especially, as shown in Figure 3, because each in drive rod 5a, 5b and 5c is the form of long slab and driving shaft 4 is the form of stock, therefore they are very easy to because deforming from side surface externally applied forces.Therefore, these parts can cannot process subsequently by the short trouble of generation or earth fault.
Summary of the invention
Therefore, the scheme of detail specifications is to provide a kind of earthed switch for distribution panelboard, it even can bear the electromagnetic repulsion force that can produce between contact, thus prevents the distortion for the driving shaft or drive rod driving movable contactor (movable contact).
In order to realize these and other advantage and according to the object of this specification, place like this is implemented and broadly described, provide a kind of earthed switch for distribution panelboard, described earthed switch comprises: multiple fixed contact, and it is connected to the power supply side terminal at the rear portion being arranged on described distribution panelboard; Multiple movable contactor, it is arranged with ground connection accordingly with described multiple fixed contact, and each movable contactor has and the contact position of corresponding fixed contact and disconnected position; Driving shaft, it is rotatably arranged in the rear portion of described distribution panelboard; Multiple drive rod, it is arranged accordingly with described multiple movable contactor, and each drive rod has the one end being connected to described driving shaft and the other end being connected to corresponding movable contactor, described multiple drive rod drives described multiple movable contactor in response to the rotation of described driving shaft, rotates to described contact position or described disconnected position to make movable contactor; And reinforcing rib, it makes described multiple drive rod integrally be interconnected.
In a scheme of detail specifications, described reinforcing rib can be the form of strip board.And the position that described reinforcing rib can be connected at described multiple drive rod comprises multiple assembling groove.
Described reinforcing rib can be set to multiple.
According to an exemplary embodiment, the reinforcing rib being used for integrally connecting drive rod is adopted mutually to support to allow multiple drive rod.Therefore, even if electromagnetic repulsion force produces and is transferred into some drive rod between contact, electromagnetic repulsion force also can be disperseed, and therefore prevents the distortion of drive rod.
And, when electromagnetic repulsion force is disperseed by drive rod, because of electromagnetic repulsion force produce and the power being sent to driving shaft can be dispersed in multiple position, thus prevent the distortion of driving shaft.
By detailed description given below, the further scope of the application's applicability will become more obvious.But, should be understood that, because various changes and modifications within the spirit and scope of the present invention will become more apparent for a person skilled in the art by describing in detail, although so show the preferred embodiments of the present invention, detailed description and particular example provide by means of only the mode explained.
Accompanying drawing explanation
What be included accompanying drawings provides a further understanding of the present invention, and is merged in and constitutes the part of this specification, and accompanying drawing shows embodiment and is used from specification one explains principle of the present invention.
In the accompanying drawings:
Fig. 1 shows at earthed switch not by the rear side of the distribution panelboard of prior art during operation;
Fig. 2 shows the rear side of the distribution panelboard of the prior art when earthed switch is operated;
Fig. 3 shows the driver element of the movable contactor for earthed switch (movable contact) adopted in the distribution panelboard of prior art;
Fig. 4 is the schematic diagram of the earthed switch of an exemplary embodiment according to this specification;
Fig. 5 is for illustrating the schematic diagram of the driver element for the movable contactor shown in Fig. 4;
Fig. 6 is the schematic diagram of another exemplary embodiment that this specification is shown;
Fig. 7 illustrates at earthed switch not by the schematic diagram of the rear side of distribution panelboard during operation; And
Fig. 8 is the schematic diagram of the rear side of the distribution panelboard illustrated when earthed switch is operated.
Embodiment
The description of exemplary embodiment is provided in detail now with reference to accompanying drawing.Accompanying drawing carries out concise and to the point description in order to reference, and identical or equivalent parts will be provided with identical Reference numeral, and no longer will repeat its description.
Fig. 7 and Fig. 8 shows the state at the rear portion being assemblied in distribution panelboard according to the earthed switch of an exemplary embodiment.Fig. 7 shows the non-mode of operation of earthed switch, and Fig. 8 shows the mode of operation of earthed switch.
As shown in Figure 7 and Figure 8, the rear side for the formation of the housing 10 of distribution panelboard is shown having the multiple fixed contacts 30 being connected to power supply side terminal 20, and power supply side terminal 20 is arranged on the rear surface place of distribution panelboard.Multiple fixed contact 30 is connected respectively to power supply side terminal 20.The circuit breaker illustrated in figures 7 and 8 is for connecting or interrupting three-phase alternating current (AC) circuit, and therefore circuit breaker comprises power supply side terminal corresponding to each phase and load side terminal.Therefore, the exemplary embodiment of Fig. 7 and Fig. 8 shows, and the fixed contact (fixed contact) for blocking fault current is arranged on the power supply side terminal place of each phase.
Still with reference to Fig. 7 and Fig. 8, the rear surface of distribution panelboard is also shown having the multiple movable contactors 60 corresponding respectively to multiple fixed contact 30, and for driving driving shaft 40 and the drive rod 50 of movable contactor 60.
Fig. 4 shows in detail movable contactor 60 and the structure for the driving shaft 40 and drive rod 50 that drive movable contactor 60.Multiple movable contactor 60a, 60b and 60c may correspond in multiple fixed contact 30 and arrange, and contact fixed contact 30 with ground connection.Therefore, each in movable contactor 60a, 60b and 60c can have and the contact position of corresponding fixed contact and disconnected position.Fig. 4 shows the schematic diagram being in the position that movable contactor separates with fixed contact.
In the diagram, driving shaft 40 can be rotatably set in the rear portion of distribution panelboard, and is rotated by drive motor (not shown).Driving shaft 40 can comprise multiple drive rod 50.Multiple drive rod 50 may correspond in multiple movable contactor 60a, 60b and 60c.One end of each drive rod 50 can be connected to driving shaft 40 and its other end can be connected to corresponding movable contactor.In other words, as shown in Figure 4, drive rod 50a, 50b and 50c are connected to movable contactor 60a, 60b and the 60c corresponding to each phase.Therefore, drive rod 50 drives multiple movable contactor 60 in response to the rotation of driving shaft 40, can be rotated to contact position or disconnected position to make movable contactor 60.
Meanwhile, exemplary embodiment can comprise the reinforcing rib 70 for integrally connecting multiple drive rod 50.Fig. 5 illustrate in detail the reinforcing rib be arranged on drive rod.As shown in Figure 5, reinforcing rib 70 is the form of plate.Reinforcing rib 70 can be assemblied on drive rod 50a, 50b and 50c, and drive rod 50a, 50b and 50c are spaced from each other with predetermined space.
And reinforcing rib 70 can comprise multiple assembling groove 71 at its lower surface.Therefore assembling groove 71 can be assemblied on multiple drive rod respectively.
Reinforcing rib 70 is optionally set to multiple.Fig. 6 shows the exemplary embodiment comprising two reinforcing ribs.In figure 6, two reinforcing rib 70a and 70b arranged that are parallel to each other are assemblied on drive rod 50a, 50b and 50c.Each reinforcing rib 70a and 70b can comprise aforesaid assembling groove.But the present invention can arrange more reinforcing rib and be not limited to the exemplary embodiment being provided with two reinforcing rib 70a and 70b shown in Fig. 6.
These exemplary embodiments illustrate reinforcing rib and allow drive rod to be integrally interconnected.Therefore, multiple drive rod supports mutually.Therefore, even if the electromagnetic repulsion force produced between contact is transferred into some drive rod, electromagnetic repulsion force also can be disperseed, thus avoids the distortion of drive rod.In other words, the external force put on the drive rod that integrally connects can be disperseed, and can have powerful support force to make drive rod for distortion.
And, when electromagnetic repulsion force is disperseed by drive rod, produced by electromagnetic repulsion force and be sent to the power of driving shaft, also can be dispersed in drive rod and be connected to multiple positions on driving shaft, therefore can prevent the distortion that driving shaft causes because of distortion.
Previous embodiment and advantage are only exemplary and should be interpreted as limiting the disclosure.This instruction easily can be applied to the device of other type.This specification is intended that illustrative, and does not limit the scope of claim.Many possibilities, improvement and change it will be apparent to those skilled in the art that.The feature of exemplary embodiment as described herein, structure, method and other characteristics can combine to obtain other and/or optional exemplary embodiment in every way.
Due to eigen can be implemented in a variety of forms when not departing from its feature, therefore it is to be further understood that, above-described embodiment is not by the restriction of arbitrary details of aforementioned specification, except as otherwise noted, but broadly explain in the scope that should limit in such as claims, the whole changes and improvements therefore dropped in the border of claim and the equivalency range of boundary or these borders and boundary to be intended to comprise by appended claim.
Claims (3)
1., for an earthed switch for distribution panelboard, comprising:
Multiple fixed contact, it is connected to the power supply side terminal at the rear portion being arranged on described distribution panelboard;
Multiple movable contactor, it is arranged with ground connection accordingly with described multiple fixed contact, and each movable contactor has and the contact position of corresponding fixed contact and disconnected position;
Driving shaft, it is rotatably arranged in the rear portion of described distribution panelboard; And
Multiple drive rod, it is arranged accordingly with described multiple movable contactor, and each drive rod has the one end being connected to described driving shaft and the other end being connected to corresponding movable contactor, described multiple drive rod drives described multiple movable contactor in response to the rotation of described driving shaft, rotate to described contact position or described disconnected position to make movable contactor
It is characterized in that,
Described earthed switch also comprises the reinforcing rib of the one with the direction vertical with the length of described drive rod, and described reinforcing rib is configured to make described multiple drive rod integrally be interconnected described drive rod is supported mutually and external force is disperseed,
Wherein said reinforcing rib is connected to the position of described reinforcing rib according to described multiple drive rod and comprises multiple assembling groove.
2. earthed switch as claimed in claim 1, wherein said reinforcing rib is the form of strip board.
3. earthed switch as claimed in claim 1 or 2, wherein said reinforcing rib is set to multiple.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110020111A KR101124493B1 (en) | 2011-03-07 | 2011-03-07 | Ground switch for distributing board |
| KR10-2011-0020111 | 2011-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102684080A CN102684080A (en) | 2012-09-19 |
| CN102684080B true CN102684080B (en) | 2016-02-10 |
Family
ID=46141986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210054185.5A Active CN102684080B (en) | 2011-03-07 | 2012-03-02 | For the earthed switch of distribution panelboard |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101124493B1 (en) |
| CN (1) | CN102684080B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101227614B1 (en) | 2012-03-26 | 2013-01-29 | 성화종합전기(주) | Load breaker switch with a voltage detector and a lightning arrester and a ground switch |
| CN106786005A (en) * | 2016-11-14 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of high-tension switch cabinet |
| KR101879339B1 (en) * | 2016-12-22 | 2018-07-17 | 엘에스산전 주식회사 | Earthing Switch of Distributing Board |
| KR101978933B1 (en) * | 2018-12-03 | 2019-05-15 | 주식회사 멀티 | Discharge device for air insulated section switch |
| CN112510490B (en) * | 2020-12-08 | 2022-08-23 | 上海固特实业有限公司 | Power distribution cabinet equipment convenient to install |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050788A (en) * | 1989-10-04 | 1991-04-17 | 河南省信阳市高压开关厂 | The earthed switch of high voltage switchgear |
| US6680453B2 (en) * | 2001-02-07 | 2004-01-20 | Hitachi, Ltd. | Gas insulated switchgear |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100351301B1 (en) * | 2000-10-27 | 2002-09-05 | 엘지산전 주식회사 | Ground connection apparatus for circuit breaker |
| KR100480386B1 (en) * | 2001-12-28 | 2005-04-06 | 엘지산전 주식회사 | Ground switch for distributing board |
| KR100505053B1 (en) * | 2003-04-24 | 2005-08-03 | 엘에스산전 주식회사 | Toggle type earthing switch of ring main unit |
| KR100631004B1 (en) * | 2004-12-07 | 2006-10-04 | 엘에스산전 주식회사 | Grounding circuit of multi-circuit breaker |
-
2011
- 2011-03-07 KR KR1020110020111A patent/KR101124493B1/en active Active
-
2012
- 2012-03-02 CN CN201210054185.5A patent/CN102684080B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050788A (en) * | 1989-10-04 | 1991-04-17 | 河南省信阳市高压开关厂 | The earthed switch of high voltage switchgear |
| US6680453B2 (en) * | 2001-02-07 | 2004-01-20 | Hitachi, Ltd. | Gas insulated switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102684080A (en) | 2012-09-19 |
| KR101124493B1 (en) | 2012-03-16 |
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