KR20110090124A - Device for preventing of earthing switch - Google Patents
Device for preventing of earthing switch Download PDFInfo
- Publication number
- KR20110090124A KR20110090124A KR1020100009722A KR20100009722A KR20110090124A KR 20110090124 A KR20110090124 A KR 20110090124A KR 1020100009722 A KR1020100009722 A KR 1020100009722A KR 20100009722 A KR20100009722 A KR 20100009722A KR 20110090124 A KR20110090124 A KR 20110090124A
- Authority
- KR
- South Korea
- Prior art keywords
- stopper
- opening
- ground
- operation bar
- switch
- Prior art date
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Trip Switchboards (AREA)
Abstract
Description
The present invention relates to a device for preventing driving of a ground breaker during drawer entry / exit, and more particularly, during a drawer pull-in and out of the vacuum circuit breaker, the handle of the ground breaker is inserted into and out of the drive shaft of the ground switch. It relates to a drive preventing device of the grounding switch.
In general, the vacuum circuit breaker is built in the switchboard and has the ability to cut off the fault current and energize the rated current on the line, and to extinguish the arc generated during the opening and closing under normal load and the breakdown of the fault current in the vacuum vessel. This equipment is for protecting circuits and equipment.
In addition, the vacuum circuit breaker is a fixed type in which the circuit breaker and the circuit breaker of the circuit breaker are directly fastened by a fastening tool to conduct electricity, and the drawer is artificially drawn in and out of the circuit breaker in the state of being placed in the cradle. It is divided into a draw-out type that is a structure that can be fastened and separated as necessary, the current-carrying part and the current-carrying part in the switchboard.
However, the drawer type vacuum circuit breaker may cause a malfunction of the vacuum circuit breaker or an accident on the power system when attempting to connect the ground breaker at a position other than the inlet position and the outlet position.
Therefore, when a conventional vacuum circuit breaker is pulled in and out, the operation handle for the ground switchgear is inserted into the drive shaft of the ground switchgear, and when the force is applied to the handle to close the ground switchgear, the rotation of the handle becomes impossible by a certain angle. It was installed to prevent the close of the grounding switch.
However, damage to the blocking part and related parts may occur due to the excessive handle operation of the user, which may cause a safety accident.
The present invention has been made to solve the conventional problems as described above, the object of the present invention is to protect the product and parts by blocking the operation handle of the grounding switch is inserted into the drive shaft of the grounding switch during the draw-in and out of the vacuum circuit breaker In addition, the present invention provides a device for preventing the operation of a ground breaker during the drawer in and out of a vacuum circuit breaker that increases safety.
In order to achieve the above object, the driving preventing device of the ground circuit breaker of the vacuum circuit breaker draw-in and out according to the present invention is provided on one side of the draw-out device for the draw-in and out of the vacuum circuit breaker and the operation bar interlocked with the operation of the draw-out device, and It is provided at the front of the operation bar and is locked or unlocked by the operation of the operation bar, the opening and closing portion is reversed when locked and advanced when unlocking, the center is fitted to the tip of the drive shaft of the folding switch, the opening and closing portion is inserted at one side Alternatively, the guide groove is provided to be detached so that the opening and closing part is not movable when inserted into the guide groove, and the opening and closing part is movable when detached from the guide groove so that the operation handle of the grounding switch is inserted into the driving shaft of the grounding switch. It is characterized in that it comprises a; bushing to allow or block.
Here, the opening and closing portion is provided with an insertion groove into which the operation bar is inserted, one end of which is inserted into the guide groove, a spring for supporting the other end of the stopper, and a support for fixing the spring and the stopper.
And, the front end of the operation bar is inserted into one side of the insertion groove of the stopper is made of an inclination angle so as to move the stopper rearward when the insertion proceeds.
As described above, according to the driving prevention device of the ground breaker during the drawer in and out of the vacuum breaker of the present invention, the handling of the user by blocking the operation handle of the ground breaker is not inserted into the drive shaft of the ground breaker during the vacuum breaker draw-in and out Safety accidents can be prevented in advance, and the maintenance cost can be reduced by not only protecting the product but also reducing the after-sales service.
1 is a view illustrating an operation when a vacuum circuit breaker is a disconnection position or a test position in a driving prevention device of a ground circuit breaker during drawing out of a vacuum circuit breaker according to an embodiment of the present invention;
2 is a view illustrating an operation of a vacuum circuit breaker in a pull-out state in a device for preventing the operation of a ground circuit breaker during the circuit breaker pull-out according to an embodiment of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the driving preventing device of the ground breaker during the withdrawal of the vacuum breaker according to the present invention is provided at one side of the withdrawal device 100 for withdrawing and withdrawing the vacuum circuit breaker. The
Here, the opening and closing part 300 is provided with an
At this time, the
And, the tip of the
In addition, the
On the other hand, the
The
The
Referring to the operation of the driving prevention device of the grounding switch during the drawer draw-out and out as described above are as follows.
First, as shown in FIG. 1, when the vacuum circuit breaker reaches a disconnection position or a test position, the
As a result, the
In addition, the
When the vacuum breaker starts drawing in and out in the state of FIG. 1, as shown in FIG. 2, the insertion groove of the
As a result, the
This state is maintained by the vacuum breaker during the service state, i.e., the draw-out state.
As described above, the present invention can prevent the safety accident that may occur during the user's handling by blocking the operation handle of the grounding switch from being inserted into the drive shaft of the grounding switch during the drawer in and out of the vacuum circuit breaker. Of course, the maintenance cost can be reduced by reducing after-sales service.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Of course.
Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.
100: take-out device 200: operation bar
210: slope 300: opening and closing portion
310: stopper 311: insertion groove
320: spring 330: support
400: drive shaft 410: compression spring
500: bushing 520: guide groove
600: operation handle 700: housing
710: operation handle insertion groove
Claims (3)
An opening and closing portion provided at the front of the operation bar and locked or unlocked by the operation of the operation bar, reversing when locked and moving forward when unlocked;
A center is fitted at the front end of the drive shaft of the ground switch, and a guide groove into which the opening and closing part is inserted or removed is provided at one side thereof, so that the opening and closing part is not movable when the opening is inserted into the guide groove. And a bushing part configured to allow or block the operation handle of the ground switch to be inserted into the drive shaft of the ground switch. 2.
The opening and closing part is provided with an insertion groove into which the operation bar is inserted, and a stopper having one end inserted into the guide groove, a spring supporting the other end of the stopper, and a vacuum supporting member for fixing the spring and the stopper. Device for preventing the operation of the grounding switch during breaker draw-out.
The front end of the operation bar is a drive prevention device of the grounding switch during the drawer in and out, characterized in that the inclined surface so as to move the stopper to the rear when inserted into the insertion groove of the stopper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100009722A KR20110090124A (en) | 2010-02-02 | 2010-02-02 | Device for preventing of earthing switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100009722A KR20110090124A (en) | 2010-02-02 | 2010-02-02 | Device for preventing of earthing switch |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20110090124A true KR20110090124A (en) | 2011-08-10 |
Family
ID=44927959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100009722A KR20110090124A (en) | 2010-02-02 | 2010-02-02 | Device for preventing of earthing switch |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20110090124A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101470048B1 (en) * | 2010-11-01 | 2014-12-05 | 현대중공업 주식회사 | Drawing mecanism with double interlock function for a vacuum circuit breaker |
-
2010
- 2010-02-02 KR KR1020100009722A patent/KR20110090124A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101470048B1 (en) * | 2010-11-01 | 2014-12-05 | 현대중공업 주식회사 | Drawing mecanism with double interlock function for a vacuum circuit breaker |
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WITN | Withdrawal due to no request for examination |