KR20170103265A - Interlock apparatus for vacuum circuit breaker - Google Patents

Interlock apparatus for vacuum circuit breaker Download PDF

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Publication number
KR20170103265A
KR20170103265A KR1020160025811A KR20160025811A KR20170103265A KR 20170103265 A KR20170103265 A KR 20170103265A KR 1020160025811 A KR1020160025811 A KR 1020160025811A KR 20160025811 A KR20160025811 A KR 20160025811A KR 20170103265 A KR20170103265 A KR 20170103265A
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KR
South Korea
Prior art keywords
plate
circuit breaker
preventing member
movement
movement preventing
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KR1020160025811A
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Korean (ko)
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KR101793549B1 (en
Inventor
안길영
양홍익
이한주
Original Assignee
엘에스산전 주식회사
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Priority to KR1020160025811A priority Critical patent/KR101793549B1/en
Publication of KR20170103265A publication Critical patent/KR20170103265A/en
Application granted granted Critical
Publication of KR101793549B1 publication Critical patent/KR101793549B1/en

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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
    • H01H33/46—Interlocking mechanisms
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms

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  • Trip Switchboards (AREA)

Abstract

In the present invention, when the breaker main body is adjusted to the closed state, the movement preventing member is positioned so as to protrude to the outside of the bogie, and when the breaker main body is inserted into the switchboard, There is an effect of preventing insertion into the inside of the switchboard in the closed state.

Description

[0001] INTERLOCK APPARATUS FOR VACUUM CIRCUIT BREAKER [0002]

The present invention relates to an interlock device of a vacuum circuit breaker, and more particularly, to an interlock device of a vacuum circuit breaker that prevents insertion of a vacuum circuit breaker into a switchboard and drawing of the circuit breaker to the outside.

Generally, a breaker is an electric protective device that protects a load device and a line from a fault current in the event of a short circuit or a ground fault occurring in an electric circuit.

Such circuit breakers are classified into an inflow circuit breaker using oil as a soot medium according to the SOHO medium, a gas circuit breaker using inert gas (SF 6 ) gas, an air circuit breaker using air as a soot medium, And a vacuum circuit breaker using the dielectric strength of vacuum.

Currently, most electric power equipment products use arc heaters and sulfur hexafluoride gas, which are excellent in insulation performance, as insulating medium, but sulfur hexafluoride gas has 23,900 times the greenhouse effect of carbon dioxide and is being used worldwide .

In Korea, environmentally friendly electric power equipment products capable of replacing sulfur hexafluoride gas are being actively developed. Demand for vacuum interrupters is rapidly increasing as one of such environmentally friendly electric power equipment products.

Vacuum circuit breaker mainly plays a role of protection of electric power transportation control and power system. It has a large breaking capacity, high reliability and safety, and can be mounted in a small installation space. Thus, its application range from medium voltage to high voltage is expanded It is going.

At this time, the vacuum circuit breaker is installed together with the switchboard for inserting and managing various electric devices including the breaker for the operation and control of the power station and the substation, and the operation of the electric motor, and is housed in the cradle fixed to the switchboard.

Such a vacuum circuit breaker is divided into a fixed type and a pull-in / pull-out type. The break-in / pull-out type breaker has a disconnection position where the main circuit of the vacuum circuit breaker and the control circuit are separated from each other, ), A test position (TEST POSITION) in which the main circuit is disconnected and the control circuit is connected, and a connecting position in which both the main circuit and the control circuit are connected.

FIG. 1 is a perspective view showing a conventional switchboard with a vacuum breaker, and FIG. 3 is a perspective view showing another conventional switchboard with a vacuum breaker. FIG. 4 is a perspective view showing a state where a vacuum circuit breaker is inserted into a conventional switchboard in a certain degree. FIG. 5 shows a state in which a vacuum circuit breaker is inserted into a conventional switchboard, Is shown.

1 to 5, a conventional vertical arrangement type vacuum circuit breaker 20 has a breaker main body 20a mounted on a carriage 20b and moving along a rail 11 in an interior of a switchboard 10 Test position or pull-in position in accordance with the movement of the carriage 20b to be brought into contact with or separated from the power-source-side terminal 13 and the load-side terminal 14 provided in the switchboard 10.

At this time, when the vacuum circuit breaker 20 is inserted into the switchboard 10 or taken out from the switchboard 10 in the ON state, the power source side terminal 21 and the load side terminal 22 provided in the vacuum circuit breaker 20 An arc is generated due to an incomplete contact when the terminals 13 and 14 of the switchboard 10 are brought into contact with each other.

However, in the case of the conventional vacuum circuit breaker 20 as described above, the circuit breaker main body 20a can not be inserted into the switchboard 10 or can not be drawn out from the switchboard 10 in a state in which the breaker main body 20a is in the closed state There is no separate device, and there is a problem that it is difficult to prevent occurrence of an accident caused by imperfect contact.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an interlock device for a vacuum interrupter, which prevents insertion of a vacuum interrupter into a switchboard or withdrawal of the vacuum interrupter to the outside.

According to the present invention, there is provided an interlock device for a vacuum interrupter, wherein the circuit breaker main body seated on a bogie moves in the interior of the switchboard through a rail and contacts or separates from the load side and the power supply side, A moving part moving; A rotating plate rotating according to the movement of the moving unit; And a movement preventing member rotatably connected to the rotary plate and moved to the outside or the inside of the carriage in accordance with the rotation of the rotary plate to come into contact with or abut against the rail, ≪ / RTI >

The moving unit may include a rotation lever connected to the circuit breaker main body and rotating according to a state of the breaker main body being turned on or off. And a moving plate connected to one end of the rotating lever for rotating the rotating plate in accordance with rotation of the rotating lever.

And an elastic member connected to the rotating plate to provide an elastic force to return to the original position when the rotating plate rotates in accordance with the movement of the moving unit.

In addition, a connecting member is provided at an upper end of the rotating plate and one end of the elastic member is inserted and fixed.

The connecting member may include: a first plate disposed in close contact with an upper end of the rotating plate; And a second plate extending from one end of the first plate so as to be bent upwardly and having a connection hole through which one end of the elastic member is inserted.

The rotation plate is provided with a guide hole, and the first plate and the movement preventing member are provided with a through hole at a position corresponding to the guide hole, so that the connection pin passes through the guide hole and the through hole, And the plate and the movement preventing member are rotatably connected to each other.

And a connecting pin is formed on an upper portion of the connecting pin so that the connecting pin passes through the connecting hole and comes into contact with the upper end of the first plate so that the connecting pin passes through the guide hole and the through hole, .

In addition, a seating space is formed on the rotation plate side of the movement preventing member so that the rotation plate is seated and rotated.

In addition, the bogie is provided with a guide member which is positioned on the movement path of the movement preventing member and guides movement of the movement preventing member.

Further, the guide member is characterized in that the hollow has a hollow cylindrical shape.

And a support member fixedly mounted on the bogie at the lower side of the rotation plate and connected to the rotation plate so as to be rotatable to support the rotation plate.

In addition, a moving hole is formed at one end of the rail inside the cabinet for moving the movement preventing member.

As described above, the interlock device of the vacuum interrupter according to the present invention is configured such that when the breaker main body is adjusted to the closed state, the movement preventing member is positioned so as to protrude to the outside of the vehicle, and when the breaker main body is inserted into the switchboard, Thereby preventing the breaker main body from being inserted into the cabinet when the breaker main body is in the closed state.

When the breaker body is inserted into the switchboard and the breaker body is adjusted to the closed state and the movement preventing member is protruded to the outside of the carriage, the movement preventing member is inserted into the moving hole formed in the rail and caught in the rail, It is effective to prevent the outside of the switchboard from being drawn out.

In addition, since the breaker body is prevented from being drawn into or out of the cabinet when the main body of the circuit breaker is in the closed state, it is possible to prevent the occurrence of an accident during use due to incidence of incomplete contact between the terminals have.

Further, since the elastic member is connected to the rotating plate, the rotating plate is moved through the moving unit, and then the elastic plate is easily returned through the elastic force of the elastic member when returning to the original position.

Further, by providing the guide member on the movement path of the movement preventing member, it is possible to prevent the movement of the movement preventing member in the other direction when the movement preventing member is moved, thereby effectively restricting the movement of the breaker body through the movement preventing member.

Also, since the movement preventing member moves finely to the outside or the inside of the carriage, the plastic deformation due to the dynamic load is not easily generated, thereby effectively preventing frequent occurrence of malfunction due to use for a long time.

1 is a perspective view showing an electric distribution board having a conventional vacuum circuit breaker;
2 is another perspective view showing an electric distribution board having a conventional vacuum circuit breaker.
3 is a perspective view showing a vacuum breaker of the conventional longitudinal arrangement type.
4 is a perspective view showing a state in which a vacuum breaker is inserted into a conventional switchboard.
5 is a perspective view showing a state in which a vacuum circuit breaker is inserted into a conventional switchboard in a withdrawn position;
6 is a perspective view of an interlock device provided in a vacuum breaker according to the present invention.
7 is a perspective view showing a state in which an interlock device according to the present invention is provided in a vacuum circuit breaker;
8A is a partially enlarged view showing an interlock device when a vacuum circuit breaker according to the present invention is in a closed state.
8B is another enlarged view of the interlock device when the vacuum circuit breaker according to the present invention is in the closed state.
FIG. 9A is a partially enlarged view showing an interlock device when the vacuum circuit breaker according to the present invention is in a cut-off state; FIG.
FIG. 9B is another enlarged view showing an interlock device when the vacuum circuit breaker according to the present invention is in a cut-off state. FIG.
10 is a perspective view showing a state in which the vacuum circuit breaker according to the present invention is inserted into the switchboard;
11 is a perspective view showing a state in which a vacuum circuit breaker according to the present invention is inserted into an electric switchboard and controlled in a closed state.
12 is a perspective view showing a connecting member constituting an interlock device of a vacuum circuit breaker according to the present invention;
13 is a perspective view showing a movement preventing member constituting an interlock device of a vacuum circuit breaker according to the present invention.

Hereinafter, an interlock device of a vacuum interrupter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

7 is a perspective view illustrating a state in which an interlock device according to the present invention is provided in a vacuum circuit breaker, and FIG. 8A is a perspective view illustrating a vacuum circuit breaker according to an embodiment of the present invention. FIG. 8B is a partially enlarged view showing an interlock device when the vacuum circuit breaker according to the present invention is in the closed state, FIG. 9A is a partial enlarged view showing the interlock device when the vacuum circuit breaker according to the present invention is in the closed state, Fig. 9B is a partially enlarged view showing an interlock device when the vacuum circuit breaker according to the present invention is in a cut-off state. Fig.

11 is a perspective view showing a state in which the vacuum circuit breaker according to the present invention is inserted into the switchboard and adjusted to the closed state, FIG. 12 is a perspective view showing the state where the vacuum breaker according to the present invention is inserted into the switchboard, FIG. 13 is a perspective view showing a movement preventing member constituting an interlock device of a vacuum interrupter according to the present invention. FIG. 13 is a perspective view showing a connecting member constituting an interlock device of a vacuum interrupter according to the invention.

6 and 7, the vacuum circuit breaker 100 including the interlock device 300 according to the present invention includes a circuit breaker main body 101 having a power source side terminal 101a and a load side terminal 101b, Moves to the entry or withdrawal position while moving inside the switchboard (200) along the rail (201) provided on the switchboard (200) while being seated on the switchboard (103).

The vacuum circuit breaker 100 is provided with an interlock device 300 for preventing the circuit breaker body 101 from being inserted into the inside of the switchboard 200 or being drawn out from the inside of the switchboard 200 when the circuit breaker body 101 is closed do.

The interlock device 300 includes a moving unit 301, a rotating plate 303, and a movement preventing member 305.

The moving unit 301 is connected to the circuit breaker main body 101 so that when the circuit breaker body 101 is controlled to be turned on or off, The rotation plate 303 is rotated.

At this time, the moving unit 301 includes a rotating lever 301a and a moving plate 301b.

The rotation lever 301a is connected to the breaker main body 101 and moves the moving plate 301b while rotating clockwise or counterclockwise when the breaker main body 101 is adjusted to be put in or out.

The moving plate 301b is connected to one end of the rotating lever 301a and moves along the rotation of the rotating lever 301a while rotating the rotating plate 303 located on the moving path of the moving plate 301b So that the movement preventing member 305 protrudes to the outside of the bogie 103 or moves to the inside of the bogie 103 through the rotation plate 303. [

The rotation plate 303 is positioned on the movement path of the movement plate 301b and rotatably connected to the movement prevention member 305 so that when the movement plate 301b moves, The movement preventing member 305 is moved so that the movement preventing member 305 is positioned on the outside or inside of the carriage 103. In this case,

The movement preventing member 305 is positioned on the outer side or the inner side of the bogie 103 so that when the breaker body 101 is inserted into the switchboard 200, So as to be prevented from being inserted into the inside of the switchboard 200 when the breaker body 101 is in the closed state.

The rotation plate 303 is connected to the rotation plate 303 so that when the rotation plate 303 rotates in accordance with the movement of the movement unit 301, the rotation plate 303 is returned to its original position A resilient member 307 such as a spring or the like for providing an elastic force is provided.

Therefore, when the circuit breaker main body 101 is adjusted to the cutoff state, the moving plate 301b moves to rotate the rotating plate 303, and the rotating plate 303 rotates while rotating the elastic member 307 When the breaker body 101 is adjusted to the closing state and the moving plate 301b returns to the position before rotating the rotating plate 303, the rotating plate 303 is moved to the elastic member 307, The movement preventing member 305 is moved to the outside of the carriage 103 in a protruding manner.

The movement preventing member 305 is rotatably connected to one end of the rotation plate 303 so that when the rotation plate 303 rotates, The breaker main body 101 is prevented from being inserted into the switchboard 200 or being drawn out of the switchboard 200 by moving to the inside of the bogie 103. [

8A and 8B, when the circuit breaker main body 101 is adjusted to the closed state, the movement preventing member 305 is moved to the outside of the carriage 103 in accordance with the rotation of the rotation plate 303 The movement preventing member 305 abuts against the front end of the rail 201 when inserting the circuit breaker main body 101 into the inside of the switchboard 200 so that insertion is prevented.

9A and 9B, when the circuit breaker main body 101 is controlled to be in a cut-off state, the movement preventing member 305 is moved inward of the carriage 103 in accordance with the rotation of the rotation plate 303, So that the circuit breaker main body 101 can be inserted into the switchboard 200.

Meanwhile, the movement preventing member 305 is formed in a cylindrical shape, but is not limited thereto and may be manufactured in various shapes.

For example, the portion of the movement preventing member 305, which is in contact with the front end of the rail 201, may be a horizontal surface like the rail 201, so that breakage during contact can be minimized.

12, a seating space 305a is formed on the rotation plate 303 side of the movement preventing member 305 so that the rotation plate 303 is seated and rotated. Is positioned on the movement preventing member (305) through the seating space (305a) and is moved while being in contact with the movement preventing member (305) to move the movement preventing member (305).

The bogie 103 may further include a guide member 315 on the movement path of the movement preventing member 305. The guide member 315 may have a hollow hollow cylindrical shape, The movement preventing member 305 is prevented from moving in a direction other than the movement path through the guide member 315 by moving through the guide member 315 while moving.

Meanwhile, a moving hole 201a may be formed at one end of the rail 201 provided in the switchboard 200 on the inside of the switchboard 200 so that the movement preventing member 305 moves.

10, when the breaker main body 101 is inserted into the switchboard 200 in the cutoff state and then regulated to be put into the closed state, the movement preventing member 305 is moved to the outside of the bogie 103 The movement preventing member 305 is hooked on the rail 201 so that the breaker body 101 is drawn out to the outside of the switchboard 200 .

11, a connecting member 309 is provided at an upper end of the rotating plate 303. The connecting member 309 is fixed to one end of the elastic member 307 by being inserted.

At this time, the connecting member 309 is composed of a first plate 309a and a second plate 309b.

The first plate 309a is disposed in close contact with the upper end of the rotation plate 303 and the second plate 309b is extended from the first end of the first plate 309a to be bent upward, -1 is formed and one end of the elastic member 307 is fitted into the connection hole 309b-1 so that the rotation plate 303 receives elastic force through the elastic member 307.

A guide hole 303a is formed in the rotation plate 303 and through holes 305b are formed in the first plate 309a and the movement preventing member 305 at positions corresponding to the guide holes 303a, , 309a-1 are formed.

At this time, since the connection pin 311 is positioned so as to pass through the guide hole 303a and the through holes 305b and 309a-1, the rotation plate 303 and the movement preventing member 305 are rotatably connected do.

A coupling hole (not shown) is formed in the upper portion of the connection pin 311 so as to pass through the coupling pin 311 in a horizontal direction. The coupling pin 313 is inserted through the coupling hole and positioned at the upper end of the first plate 309a The connection pin 311 is fixed so that the connection pin 311 is positioned to pass through the guide hole 303a and the through holes 305b and 309a-1.

In addition, a support member 317 fixed to the bogie 103 and rotatably connected to the rotary plate 303 is further provided below the rotary plate 303.

The support member 317 is fixedly mounted on the bogie 103 through a fastening member 319 such as a bolt, and the rotation plate 303 is rotatably connected.

Accordingly, the rotation plate 303 is rotatably connected while being supported by the support member 317 in a state where the rotation plate 303 is connected to the bogie 103.

Hereinafter, the process of preventing the breaker main body 101 from being inserted or removed through the interlock device 300 of the vacuum breaker 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the user places the circuit breaker main body 101 on the truck 103 and then inserts the circuit breaker body 101 into the inside of the switchboard 200, moves the inside of the switchboard 200 through the rail 201, .

8A and 8B, when the circuit breaker main body 101 is adjusted to the inserted state before being inserted into the switchboard 200, the rotation lever 301a connected to the circuit breaker main body 101 is rotated clockwise And the moving plate 301b connected thereto is also moved.

When the moving plate 301b moves, the rotating plate 303 rotates counterclockwise while receiving the elastic force of the elastic member 307, and at the same time, the moving preventing member 305 connected to the rotating plate 303 rotates So as to protrude to the outside of the carriage 103 in association with the rotation of the carriage 303.

Therefore, when the circuit breaker main body 101 is in the closed state, the movement preventing member 305 finally protrudes to the outside of the bogie 103. Therefore, if the circuit breaker body 101 is inserted into the rail 201, The breaker main body 101 is prevented from being inserted into the inside of the switchboard 200 while the movement preventing member 305 abuts against the front end of the switchboard main body 101. [

9A and 9B, when the circuit breaker main body 101 is adjusted to the cutoff state, the rotation lever 301a connected to the circuit breaker body 101 rotates counterclockwise to move the movement plate 301b And the moving plate 301b moves while coming into contact with the rotating plate 303 to rotate the rotating plate 303 in the clockwise direction.

The movement preventing member 305 connected to the rotation plate 303 moves to the inside of the carriage 103 in accordance with the rotation of the rotation plate 303. When the movement preventing member 305 moves to the inside of the carriage 103 The breaker main body 101 can be inserted into the inside of the switchboard 200 by moving to the position where the engagement with the rail 201 is released.

When the breaker main body 101 is inserted into the switchboard 200 through the rail 201 in the cutoff state and is then regulated to be put into the closed state, The movement preventing member 305 moves through the moving hole 201a formed in the rail 201 and is caught by the rail 201 so that the breaker main body 101 is moved to the outside When the inserted state is adjusted, the breaker body 101 is prevented from being drawn out to the outside of the switchboard 200.

The interlock device 300 of the vacuum breaker 100 according to the present invention operates as described above so that when the breaker main body 101 is adjusted to the closing state, the movement preventing member 305 is moved to the outside And the movement preventing member 305 protruding to the outside of the bogie 103 when the breaker main body 101 is inserted into the inside of the switchboard 200 abuts against the front end of the rail 201, So that it is prevented from being inserted into the inside of the switchboard 200.

When the breaker body 101 is inserted into the inside of the switchboard 200 and is adjusted to the closed state so that the movement preventing member 305 protrudes to the outside of the carriage 103, When the circuit breaker main body 101 is inserted into the inside of the switchboard 200 and is controlled to be put in the state that the switchboard main body 101 is inserted into the moving hole 201a formed in the switchboard 200, The outward withdrawal is prevented.

In addition, when the circuit breaker main body 101 is in the closed state, it is prevented that the arc is generated due to incomplete contact of the terminals when the circuit breaker body 101 is in the closed state, Thereby preventing an accident from occurring during use of the circuit breaker 100.

Further, by connecting the elastic member 307 to the rotation plate 303, the rotation plate 303 is moved through the movement part 301 and is easily returned to its original position.

The guide member 315 is provided on the movement path of the movement preventing member 305 to prevent the movement of the movement preventing member 305 in the other direction to prevent the movement of the breaker body 101 through the movement preventing member 305, So that it is possible to effectively restrict the input and output.

In addition, since the movement preventing member 305 prevents the breaker 100 from being pulled in and out through fine movement of the bogie 103 to the outside or the inside, plastic deformation due to a dynamic load is not easily generated, This prevents the parts from being damaged due to use, and also prevents frequent occurrence of malfunction due to damage of the parts.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the above description does not limit the scope of the present invention defined by the limitations of the following claims.

10, 200: Switchboard 11, 201: Rail
13: Power side terminal 14: Load side terminal
20, 100: vacuum breaker 20a, 101:
20b, 103: truck 21, 101a: power source side terminal
22, 101b: load side terminal 201a: moving hole
300: interlock device 301:
301a: rotating lever 301b: moving plate
303: rotation plate 303a: guide hole
305: Movement prevention member 305a:
305b, 309a-1: through-hole 307: elastic member
309: connecting member 309a: first plate
309b: Second plate 309b-1: Connection hole
311: connecting pin 313: fastening pin
315: guide member 317: support member
319: fastening member

Claims (12)

1. An interlock device for a vacuum circuit breaker, wherein a circuit breaker main body seated on a bogie is moved inside a switchboard through a rail to contact or separate from a load side and a power supply side,
A moving part moving according to a change in state of the breaker main body;
A rotating plate rotating according to the movement of the moving unit; And
A movement preventing member rotatably connected to the rotary plate and moved to the outside or inside of the carriage in accordance with the rotation of the rotary plate to come into contact with the rail or to release the abutment;
The interlock device of the vacuum circuit breaker. The method according to claim 1,
The moving unit includes:
A rotation lever connected to the breaker main body and rotating according to a state of closing or interrupting the breaker main body; And
A moving plate connected to one end of the rotating lever to rotate the rotating plate in accordance with rotation of the rotating lever;
Wherein the interlocking device comprises an interlock device. The method according to claim 1,
And an elastic member connected to the rotating plate to provide an elastic force to return to the original position when the rotating plate rotates in accordance with the movement of the moving unit. The method of claim 3,
And an upper end of the rotation plate is provided with a connection member to which one end of the elastic member is inserted and fixed. 5. The method of claim 4,
The connecting member includes:
A first plate positioned in close contact with an upper end of the rotating plate;
And a second plate extending from one end of the first plate so as to be bent upwardly and having a connection hole for receiving one end of the elastic member. 6. The method of claim 5,
A guide hole is formed in the rotary plate,
Wherein the first plate and the movement preventing member are provided with through holes at positions corresponding to the guide holes,
And the rotation plate and the movement preventing member are rotatably connected to each other by the connection pin passing through the guide hole and the through hole. The method according to claim 6,
A coupling hole is formed in an upper portion of the connection pin,
Wherein the coupling pin is positioned such that the coupling pin passes through the coupling hole and abuts the upper end of the first plate so that the coupling pin passes through the guide hole and the through hole. The method according to claim 1,
And a seat space is formed on the rotation plate side of the movement preventing member so that the rotation plate is seated and rotated. The method according to claim 1,
Wherein the bogie is provided with a guide member positioned on a movement path of the movement preventing member and guiding movement of the movement preventing member. 10. The method of claim 9,
Wherein the guide member has a hollow hollow cylindrical shape. The method according to claim 1,
And a support member fixedly mounted on the bogie at the lower side of the rotary plate and connected to the rotary plate so as to be rotatable to support the rotary plate. The method according to claim 1,
Wherein a moving hole is formed at one end of the rail inside the cabinet for moving the movement preventing member.
KR1020160025811A 2016-03-03 2016-03-03 Interlock apparatus for vacuum circuit breaker KR101793549B1 (en)

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KR101793549B1 KR101793549B1 (en) 2017-11-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190030883A (en) * 2017-09-15 2019-03-25 엘에스산전 주식회사 Interlock device of circuit breaker

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261968B1 (en) * 2011-12-30 2013-05-09 엘에스산전 주식회사 Vacuum circuit breaker with interlock apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190030883A (en) * 2017-09-15 2019-03-25 엘에스산전 주식회사 Interlock device of circuit breaker

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