KR101100711B1 - Switching mechanism for switchgear - Google Patents
Switching mechanism for switchgear Download PDFInfo
- Publication number
- KR101100711B1 KR101100711B1 KR1020100081669A KR20100081669A KR101100711B1 KR 101100711 B1 KR101100711 B1 KR 101100711B1 KR 1020100081669 A KR1020100081669 A KR 1020100081669A KR 20100081669 A KR20100081669 A KR 20100081669A KR 101100711 B1 KR101100711 B1 KR 101100711B1
- Authority
- KR
- South Korea
- Prior art keywords
- contactor
- fixed
- contact
- fixed contactor
- switchgear
- Prior art date
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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
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
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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
- H01H31/28—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 angularly-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
- H01H33/42—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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
BACKGROUND OF THE
For example, a switchgear with a rated voltage of 72.5 kilovolts is a power device used for distribution of substations or large-capacity power consumers. Such a switchgear may be constituted by a gas insulated switchgear for accommodating main components of the switchgear such as a disconnector, a ground switch, and a breaker in a tank filled with SOHO gas.
The present invention relates to a mechanism of a grounding switch in such a switchgear. The grounding switch according to the prior art has a swithcing mechanism for opening and closing of a disconnector and an opening and closing mechanism for opening and closing of a grounding switch separately. It has a constructed structure.
Therefore, the ground opening and closing mechanism according to the prior art has a larger volume of the tank for accommodating the grounding and energizing opening and closing, respectively, and takes a long time to manufacture and increases the manufacturing cost due to the complicated configuration. There was also a high probability of failure.
Accordingly, the present invention solves the problems of the prior art, the object of the present invention is to reduce the storage volume by configuring the switchgear of the ground switch and the switchgear of the disconnector in a common single configuration, the configuration is simplified It is to provide a grounding switch mechanism of the switchgear that the manufacturing productivity is improved compared to the conventional and the manufacturing cost is reduced, and the occurrence of defects during manufacturing can be minimized as compared with the prior art.
The object of the present invention, in the ground opening and closing mechanism of the switchgear,
A first fixed contactor for closing connected electrically to the power supply or load side of the power circuit;
A second fixed contactor for grounding; And
A first position electrically connected to the power supply or load side of the power circuit, the first position contacting the first fixed contactor for circuit input, the second position contacting the second fixed contactor for grounding, and a disconnection In order to provide a ground opening and closing mechanism of the switchgear according to the present invention, characterized in that it comprises a; movable assembly assembly rotatable to a third position which is a neutral position separated from the first fixed contactor and the second fixed contactor. Can be achieved.
The ground opening and closing mechanism of the switchgear according to the present invention has a structure in which one movable contactor is commonly used for the first fixed contactor for input and the second fixed contactor for grounding, so that the storage volume can be reduced and the configuration is simplified. Manufacturing productivity is improved compared to the prior art and the manufacturing cost is reduced, there is an effect to obtain a grounding switch mechanism of the switchgear which can be minimized compared to the prior art generation of defects during the manufacturing.
In the ground opening / closing mechanism of the switchgear according to the present invention, the first fixed contact and the second fixed contact each include a connecting blade, so that the movable contactor is in contact with or separated from the connecting blade. The operation can be easily achieved can be obtained.
In the ground opening and closing mechanism of the switchgear according to the present invention, the mover assembly is connected to a rotary drive shaft, a rotary lever (LEVER) which is rotated and rotated by the rotary drive shaft, and rotates together with the rotary lever. It comprises a movable contactor having a pair of opposing plates so as to sandwich the connecting blades of the first fixed contact and the second fixed contact between the contact, so that the movable contact is rotated in common to the first and second fixed contact It is possible to obtain the effect that it is possible to contact or disconnect and to make contact between the connecting blades of the first and second fixed contact between.
In the ground opening / closing mechanism of a switchgear according to the present invention, a movable contact includes at least one pair of opposing contact plates and each of the contactors, which elastically sandwich the connecting blades of the first and second fixed contacts. Since it includes a contact protrusion fixed to the end of the plate, the connection blades of the first fixed contactor and the second fixed contactor can be elastically sandwiched between the pair of contactor plates of the movable contactor so that the contact force can be maintained firmly. It works.
1 is a cross-sectional view showing the configuration of the ground opening and closing mechanism of the switchgear according to an embodiment of the present invention,
2 is an operational state diagram showing a movable contactor, a first fixed contactor, and a second fixed contactor when the switch gear is in the ground opening / closing mechanism according to the embodiment of the present invention;
3 is an operational state diagram showing a movable contactor, a first fixed contactor and a second fixed contactor when the switchgear is in a cut-off (neutral) state in a grounding switch mechanism according to an embodiment of the present invention;
4 is an operational state diagram showing a movable contactor, a first fixed contactor and a second fixed contactor in a ground state in a ground opening / closing mechanism of a switchgear according to an embodiment of the present invention;
5 is a plan view illustrating a configuration of a first fixed contactor and a movable contact in a ground opening / closing mechanism of a switchgear according to an exemplary embodiment of the present invention.
The object of the present invention and the constitution and effects of the present invention to achieve the same will be more clearly understood by the following description of the preferred embodiment of the present invention with reference to the accompanying drawings.
1 is a cross-sectional view showing the configuration of the ground opening and closing mechanism of the switch gear according to the embodiment of the present invention, Figure 2 is a movable contact and the first contact when the input state in the ground opening and closing mechanism of the switch gear according to the embodiment of the
As can be seen in particular with reference to Figure 1, the ground opening and closing mechanism of the switchgear according to the embodiment of the present invention, the ground opening and closing mechanism of the switchgear according to the embodiment of the present invention is a first fixed contactor (1) And a second
The first
The second
The
For the rotation of the
The
The rotary lever LEVER 3b is a lever member which is driven by the
The
In Fig. 1,
In FIG. 5, only a plan view of the connecting
Meanwhile, the operation of the ground opening / closing mechanism of the switchgear according to the preferred embodiment of the present invention configured as described above will be described with reference to FIGS. 2 to 4 and with reference to FIGS. 1 and 5 as follows.
First, the operation of the ground opening and closing mechanism of the switchgear according to the preferred embodiment of the present invention will be described from the blocking (neutral) position shown in FIG. 3 to the closing position shown in FIG.
In the blocking (neutral) position shown in Fig. 3, when the
Next, the operation of the ground opening / closing mechanism of the switchgear according to the preferred embodiment of the present invention from the closing position shown in FIG. 2 to the blocking (neutral) position shown in FIG.
In the blocking (neutral) position shown in FIG. 3, when the
Next, the operation of the ground opening and closing mechanism of the switchgear according to the preferred embodiment of the present invention from the disconnecting position shown in FIG. 3 to the grounding position shown in FIG.
In the disconnection (neutral) position shown in FIG. 3, when the
As described above, the ground opening / closing mechanism of the switchgear according to the present invention includes one
In the ground opening / closing mechanism of the switchgear according to the present invention, since the first
In the ground opening / closing mechanism of the switchgear according to the present invention, the
In the ground opening / closing mechanism of the switchgear according to the present invention, the
1: first fixed contact 1a: connecting conductor
1b: connection blade 2: second fixed contact
2a:
3:
3b:
3c-1:
4, 4 ':
10: enclosure
Claims (4)
A first fixed contactor for closing connected electrically to the power supply or load side of the power circuit;
A second fixed contactor for grounding; And
A first position electrically connected to the power supply or load side of the power circuit, the first position contacting the first fixed contactor for circuit input, the second position contacting the second fixed contactor for grounding, and a disconnection A mover assembly rotatable to a third position, the neutral position being separate from the first fixed contact and the second fixed contact for
The first fixed contact and the second fixed contact each includes a connecting blade (CONNECTING BLADE),
The mover assembly,
Rotary drive shaft;
A rotation lever (LEVER) rotated by the rotation drive shaft; And
A movable contactor which is connected to the rotary lever, rotates together with the rotary lever, and has a pair of opposing plates such that the connecting blades of the first fixed contactor and the second fixed contactor are sandwiched between and in contact with each other.
The movable contact,
At least one pair of opposing contact plates which elastically sandwich the connecting blades of the first fixed contactor and the second fixed contactor; And
And a contact protrusion fixed to an end of each contactor plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100081669A KR101100711B1 (en) | 2010-08-23 | 2010-08-23 | Switching mechanism for switchgear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100081669A KR101100711B1 (en) | 2010-08-23 | 2010-08-23 | Switching mechanism for switchgear |
Publications (1)
Publication Number | Publication Date |
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KR101100711B1 true KR101100711B1 (en) | 2011-12-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020100081669A KR101100711B1 (en) | 2010-08-23 | 2010-08-23 | Switching mechanism for switchgear |
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KR (1) | KR101100711B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102042155B1 (en) | 2019-02-07 | 2019-11-07 | 주식회사 에스에이치솔텍 | The earthing switch module of eco-friendly gas insulated load break switch |
CN112242266A (en) * | 2019-07-19 | 2021-01-19 | 武汉倍诺德开关有限公司 | Contact system of three-station isolating switch |
JP7512714B2 (en) | 2020-07-02 | 2024-07-09 | 富士電機株式会社 | Earthing switch |
WO2024188348A1 (en) * | 2023-03-16 | 2024-09-19 | Siemens Electrical Apparatus Ltd. | Dual power automatic transfer switch and contact system thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004063110A (en) * | 2002-07-25 | 2004-02-26 | Hitachi Ltd | Switching device |
-
2010
- 2010-08-23 KR KR1020100081669A patent/KR101100711B1/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004063110A (en) * | 2002-07-25 | 2004-02-26 | Hitachi Ltd | Switching device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102042155B1 (en) | 2019-02-07 | 2019-11-07 | 주식회사 에스에이치솔텍 | The earthing switch module of eco-friendly gas insulated load break switch |
CN112242266A (en) * | 2019-07-19 | 2021-01-19 | 武汉倍诺德开关有限公司 | Contact system of three-station isolating switch |
JP7512714B2 (en) | 2020-07-02 | 2024-07-09 | 富士電機株式会社 | Earthing switch |
WO2024188348A1 (en) * | 2023-03-16 | 2024-09-19 | Siemens Electrical Apparatus Ltd. | Dual power automatic transfer switch and contact system thereof |
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