CN102684080A - Ground switch for distributing board - Google Patents
Ground switch for distributing board Download PDFInfo
- Publication number
- CN102684080A CN102684080A CN2012100541855A CN201210054185A CN102684080A CN 102684080 A CN102684080 A CN 102684080A CN 2012100541855 A CN2012100541855 A CN 2012100541855A CN 201210054185 A CN201210054185 A CN 201210054185A CN 102684080 A CN102684080 A CN 102684080A
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- drive rod
- movable contactor
- earthed switch
- reinforcing rib
- 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.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- H01H31/003—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
-
- 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
-
- 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 ground switch for distributing board. The ground switch comprises a plurality of fixed contacts connected with a power source side terminal arranged on the back part of the distributing board; a plurality of movable contacts corresponding to the fixed contacts to ground and respectively having a contact position and a separated position of the fixed contacts; a driving shaft rotationally arranged on the back part of the distributing board; a plurality of driving rods corresponding to the movable contacts and respectively having one end connected to the driving shaft and another end connected to the corresponding movable contact, wherein the plurality of driving rods drive the movable contacts in response to rotation of the driving shaft, thus the movable contacts rotate to the contact positions or the separated positions; and reinforcement ribs wholly and mutually connecting the driving rods, wherein the reinforcement ribs allow the driving rods to mutually support and the external force is dispersed.
Description
Technical field
This specification relates to a kind of earthed switch that is used for distribution panelboard, and it is reinforced the distortion to prevent that earthed switch from causing because of the electromagnetic repulsion force of the driving shaft that is used to drive earthed switch.
Background technology
Circuit breaker refers to a kind of normal load of commutation circuit or device of disengagement failure electric current of being used for.For example, vacuum circuit-breaker carries out arc extinguishing to the electric arc that produces when commutation circuit or the disengagement failure electric current in the vacuum interrupter, thus open circuit apace.Vacuum circuit-breaker is installed in distribution panelboard with the multiple electric equipment that is used to drive or control power station, transformer station etc. and is used for drive motor etc.
In vacuum circuit-breaker, about the structure of extraction type vacuum circuit-breaker, when it was housed inside in the distribution panelboard, the main body of circuit breaker at first was accommodated in the support, is connected to the main circuit of distribution panelboard then.Therefore, when the main body with circuit breaker was recovered in the support or from support, extracts out, circuit breaker was connected or separates with the main circuit of distribution panelboard.
When main body was regained or extracted out, vacuum circuit-breaker had like upper/lower positions: run location, and in this position, the power supply side terminal of circuit breaker and load side terminal are connected to the power supply side terminal and the load side terminal of support, thereby allow the supply of voltage and electric current; And test position, in this position, the above-mentioned terminal of the power supply side terminal of circuit breaker and load side terminal and support separates, thereby only allows operational testing.
At run location, the fault current of circuit breaker blocking-up when failed because and earth fault.But in order to block the fault current that when circuit breaker is in test position, produces, earthed switch is arranged on the rear portion of distribution panelboard to guarantee safety.Earthed switch can only be worked when circuit breaker is in test position, and blocks this type of short circuit current and earth fault current down at the state that its movable contactor (movable contact) moves the fixed contact (fixed contact) that is arranged in the distribution panelboard rear portion with 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 that is under the mode of operation not.
Fig. 2 shows the rear side at the distribution panelboard of earthed switch when operating.In Fig. 2, movable contactor 6 rotations are with contact fixed contact 3.Therefore, this electric current capable of blocking when aftercurrent or fault current flow.
Fig. 3 shows the driving shaft 4 and drive rod 5 of the operation that is used to allow movable contactor 6.When fault current flows when contact fixed contact 3 in response to operated earthed switch at movable contactor 6 after, when perhaps movable contactor 6 contacts fixed contacts 3 after applying electric current, between contact, produced electromagnetic repulsion force.Therefore in this case, high fault current causes big electromagnetic repulsion force, and the driving shaft 4 or the drive rod 5 that are used to drive movable contactor 6 can be owing to electromagnetic repulsion force is out of shape.Especially, as shown in Figure 3, be the form of stock because each among drive rod 5a, 5b and the 5c be the form and the driving shaft 4 of long slab, so they are very easy because of deforming from the side surface externally applied forces.Therefore, these parts can processing subsequent with the short trouble or the earth fault that produce.
Summary of the invention
Therefore, the scheme of detail specifications is to provide a kind of earthed switch that is used for distribution panelboard, itself in addition can bear between contact the electromagnetic repulsion force that can produce, thereby prevent to be used to drive the driving shaft of movable contactor (movable contact) or the distortion of drive rod.
In order to realize these and other advantage and according to the purpose of this specification; So the place is implemented and is broadly described; A kind of earthed switch that is used for distribution panelboard is provided; Said earthed switch comprises: a plurality of fixed contacts, and it is connected to the power supply side terminal at the rear portion that is arranged on said distribution panelboard; A plurality of movable contactors, itself and said a plurality of fixed contact are provided with ground connection accordingly, and each movable contactor has and the contact position and the disconnected position of corresponding fixed contact; Driving shaft, it rotatably is arranged in the rear portion of said distribution panelboard; A plurality of drive rods; Itself and said a plurality of movable contactor are provided with accordingly; And each drive rod has an end that is connected to said driving shaft and the other end that is connected to the corresponding movable contactor; Said a plurality of drive rod drives said a plurality of movable contactor in response to the rotation of said driving shaft, so that movable contactor rotates to said contact position or said disconnected position; And reinforcing rib, it integrally interconnects said a plurality of drive rod.
In a scheme of detail specifications, said reinforcing rib can be the form of strip plate.And said reinforcing rib can comprise a plurality of assembling grooves in the connected position of said a plurality of drive rods.
Said reinforcing rib can be set to a plurality of.
According to an exemplary embodiment, the reinforcing rib that is used for integrally connecting drive rod supports to allow a plurality of drive rods each other.Therefore, even electromagnetic repulsion force produces and be transferred into some drive rod between contact, electromagnetic repulsion force also can be disperseed, and has therefore prevented the distortion of drive rod.
And when electromagnetic repulsion force was disperseed through drive rod, that produce and power that be sent to driving shaft can be dispersed in a plurality of positions because of electromagnetic repulsion force, thereby prevents the distortion of driving shaft.
Through detailed description given below, the further scope of the application's applicability will become more obvious.Yet; Should be understood that; Because various changes and modifications within the spirit and scope of the present invention will become more obvious for a person skilled in the art through describing in detail; Though so show the preferred embodiments of the present invention, detailed description and particular example only provide through the mode of explaination.
Description of drawings
The accompanying drawing that is comprised provides further understanding of the present invention, and is merged in and has constituted the part of this specification, and accompanying drawing shows embodiment and is used to explain principle of the present invention with specification.
In the accompanying drawings:
Fig. 1 shows at earthed switch not by the rear side of the distribution panelboard of the prior art in when operation;
Fig. 2 shows the rear side at the distribution panelboard of the prior art of earthed switch when operating;
Fig. 3 shows the driver element of the movable contactor that is used for earthed switch (movable contact) that adopts in the distribution panelboard of prior art;
Fig. 4 is the sketch map according to the earthed switch of an exemplary embodiment of this specification;
Fig. 5 is the sketch map that the driver element that is used for the movable contactor shown in Fig. 4 is shown;
Fig. 6 is the sketch map that another exemplary embodiment of this specification is shown;
Fig. 7 is the sketch map of the rear side of the distribution panelboard when being illustrated in earthed switch not by operation; And
Fig. 8 is the sketch map that is illustrated in the rear side of the distribution panelboard of earthed switch when operating.
Embodiment
To provide the description of exemplary embodiment now with reference to accompanying drawing in detail.In order to carry out concise and to the point description with reference to accompanying drawing, parts identical or that be equal to will be provided with identical Reference numeral, and will no longer repeat its description.
Fig. 7 and Fig. 8 show the state that is assemblied in the rear portion of distribution panelboard according to the earthed switch of an exemplary embodiment.Fig. 7 shows the not mode of operation of earthed switch, and Fig. 8 shows the mode of operation of earthed switch.
Like Fig. 7 and shown in Figure 8, the rear side that is used to form the housing 10 of distribution panelboard is shown having a plurality of fixed contacts 30 that are connected to power supply side terminal 20, and power supply side terminal 20 is arranged on the back surface of distribution panelboard.A plurality of fixed contacts 30 are connected respectively to power supply side terminal 20.The exemplary circuit breaker that illustrates is used for connecting or interrupting three-phase alternating current (AC) circuit in Fig. 7 and Fig. 8, so circuit breaker comprises power supply side terminal and load side terminal corresponding to each phase.Therefore, the exemplary embodiment of Fig. 7 and Fig. 8 shows, and the fixed contact (fixed contact) that is used to block fault current is arranged on the power supply side terminal place of each phase.
Still with reference to Fig. 7 and Fig. 8, the back surface of distribution panelboard also is shown having a plurality of movable contactors 60 that correspond respectively to a plurality of fixed contacts 30, and the driving shaft 40 and drive rod 50 that are used to drive movable contactor 60.
The structure that Fig. 4 shows in detail movable contactor 60 and is used to drive the driving shaft 40 and the drive rod 50 of movable contactor 60.A plurality of movable contactor 60a, 60b and 60c can be provided with corresponding to a plurality of fixed contacts 30, and contact fixed contact 30 is with ground connection.Therefore, each among movable contactor 60a, 60b and the 60c can have contact position and the disconnected position with corresponding fixed contact.Fig. 4 shows the sketch map that is in the position that movable contactor and fixed contact separate.
In Fig. 4, driving shaft 40 can be rotatably set in the rear portion of distribution panelboard, and through the rotation of drive motor (not shown).Driving shaft 40 can comprise a plurality of drive rods 50.A plurality of drive rods 50 can be corresponding to a plurality of 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 the corresponding movable contactor.In other words, as shown in Figure 4, drive rod 50a, 50b and 50c are connected to corresponding to each movable contactor 60a, 60b and 60c mutually.Therefore, drive rod 50 drives a plurality of movable contactors 60 in response to the rotation of driving shaft 40, so that movable contactor 60 can be rotated to contact position or disconnected position.
Meanwhile, exemplary embodiment can comprise the reinforcing rib 70 that is used for integrally connecting a plurality of drive rods 50.Fig. 5 at length shows the reinforcing rib that is arranged on the 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 the 50c, and drive rod 50a, 50b and 50c are spaced from each other with predetermined space.
And reinforcing rib 70 can comprise a plurality of assembling grooves 71 at its lower surface.Therefore assembling groove 71 can be assemblied in respectively on a plurality of drive rods.
Reinforcing rib 70 optionally is set to a plurality of.Fig. 6 shows the exemplary embodiment that comprises two reinforcing ribs.In Fig. 6, two reinforcing rib 70a and the 70b that arranges that be parallel to each other is assemblied on drive rod 50a, 50b and the 50c.Each reinforcing rib 70a and 70b can comprise aforesaid assembling groove.Yet the present invention can be provided with more reinforcing rib and be not limited to the exemplary embodiment that is provided with two reinforcing rib 70a and 70b shown in Fig. 6.
These exemplary embodiments illustrate reinforcing rib and allow drive rod integrally to interconnect.Therefore, a plurality of drive rods support each other.Therefore, even the electromagnetic repulsion force that between contact, produces is transferred into some drive rod, electromagnetic repulsion force also can be disperseed, thereby has avoided the distortion of drive rod.In other words, the external force that puts on the drive rod that integrally connects can be disperseed, so that drive rod can have powerful support force for distortion.
And, when electromagnetic repulsion force is disperseed through drive rod, produce and be sent to the power of driving shaft by electromagnetic repulsion force, also can be dispersed in drive rod and be connected to a plurality of positions on the driving shaft, therefore can prevent the distortion that driving shaft causes because of distortion.
Previous embodiment and advantage only are exemplary and should not be interpreted as the restriction disclosure.This instruction can easily be applied to the device of other type.This specification intention is an illustrative, and does not limit the scope of claim.Many possibilities, improvement and variation it will be apparent to those skilled in the art that.Here the characteristic of described exemplary embodiment, structure, method and other characteristics can make up to obtain other and/or alternate exemplary embodiment in every way.
Owing to can under the situation that does not depart from its characteristic, implement eigen in a variety of forms; Therefore it is to be further understood that; The foregoing description does not receive the restriction of arbitrary details of aforementioned specification; Except as otherwise noted, but should in liking scope thereof enclosed, broadly explain, therefore drop on the border of claim and the interior whole changes and the improvement of equivalency range of boundary or these borders and boundary and be intended to comprised by appended claim.
Claims (4)
1. earthed switch that is used for distribution panelboard comprises: a plurality of fixed contacts, and it is connected to the power supply side terminal at the rear portion that is arranged on said distribution panelboard; A plurality of movable contactors, itself and said a plurality of fixed contact are provided with ground connection accordingly, and each movable contactor has and the contact position and the disconnected position of corresponding fixed contact; Driving shaft, it rotatably is arranged in the rear portion of said distribution panelboard; And a plurality of drive rods; Itself and said a plurality of movable contactor are provided with accordingly; And each drive rod has an end that is connected to said driving shaft and the other end that is connected to the corresponding movable contactor; Said a plurality of drive rod drives said a plurality of movable contactor in response to the rotation of said driving shaft, so that movable contactor rotates to said contact position or said disconnected position
It is characterized in that said earthed switch also comprises makes the integrally interconnective reinforcing rib of said a plurality of drive rod,
Wherein said reinforcing rib allows said drive rod to support each other and external force is disperseed.
2. earthed switch as claimed in claim 1, wherein said reinforcing rib are the form of strip plate.
3. earthed switch as claimed in claim 2, wherein said reinforcing rib comprises a plurality of assembling grooves in the connected position of said a plurality of drive rods.
4. like each the described earthed switch in the claim 1 to 3, wherein said reinforcing rib is set to a plurality of.
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 true CN102684080A (en) | 2012-09-19 |
| CN102684080B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510490A (en) * | 2020-12-08 | 2021-03-16 | 上海固特实业有限公司 | Power distribution cabinet equipment convenient to install |
Families Citing this family (4)
| 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 |
Citations (3)
| 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 |
| KR100631004B1 (en) * | 2004-12-07 | 2006-10-04 | 엘에스산전 주식회사 | Grounding circuit of multi-circuit breaker |
Family Cites Families (3)
| 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 |
-
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 (3)
| 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 |
| KR100631004B1 (en) * | 2004-12-07 | 2006-10-04 | 엘에스산전 주식회사 | Grounding circuit of multi-circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510490A (en) * | 2020-12-08 | 2021-03-16 | 上海固特实业有限公司 | Power distribution cabinet equipment convenient to install |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102684080B (en) | 2016-02-10 |
| KR101124493B1 (en) | 2012-03-16 |
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