KR200442127Y1 - Motor operating device for disconnecting switch with function of key interlock - Google Patents

Abstract

The present invention relates to an electric actuator for a disconnector having a key interlock function; Its purpose is to cover the handle socket and to provide the main key switch and the manual handle key switch to block the operation of the non-experts without the key, and to ensure the safety of unconscious manual operation during electric operation or electric operation attempt during manual operation. In order to prevent an accident in advance, it is to provide an electric actuator for a disconnector equipped with a key interlock function for selecting electric or manual alternatively.

The present invention for achieving the above object in the electric actuator for the disconnector to open and close the circuit at no load by automatically rotating the actuator lever by the drive motor or by engaging the handle to the handle socket, the handle socket (3) is located A cover 11 formed to surround the side surface; A main key switch 12 formed on the front surface of the cover 11 and configured to select a driving or locking operation by inserting and rotating the main key; A manual handle key switch 13 formed on the front surface of the cover 11 and capable of selecting whether to open the handle socket by inserting and rotating the manual handle key; A handle insertion hole 111 penetrating the front surface of the cover 11 corresponding to the handle socket 3 is formed, and one end is connected to the manual handle key switch 13 and rotates about a rotation shaft provided at one side. A bent spoon-shaped handle plug 14 which opens and closes the handle insertion hole 111 by operating the manual handle key switch 13; Connected to the main key switch 12 is installed on the inside of the cover 11 so that the main key switch 12 is rotated together when rotating, and the 'U' toward the bottom and side '' '' shaped handwheel switch 13 side A disk-shaped first rotating plate 15 having a protrusion formed thereon and a first latch 15a for connecting with the position restoring spring 151; It is connected to the manual handle key switch 13 is installed inside the cover 11 so that the manual handle key switch 13 is rotated together when rotated, and the '' '' shaped projection toward the main key switch 12 side and the bottom ' A disk-shaped second rotating plate 16 on which a U'-shaped protrusion is formed and a second latch 16a for connecting with the position restoring spring 161 is formed; Guide grooves 17a for guiding rotation of the first and second latches 15a and 16a are formed, and locking projections 17b and 17c for fixing the other ends of the position restoring springs 151 and 161 are formed on the upper side. A guide plate 17 having a rectangular plate shape; And a control unit 18 for controlling power according to the operation of the main key switch 12, the manual handle key switch 13, and the handle socket 3, wherein the manual handle key switch 13 is rotated to handle At the time of opening the socket, the 'U' shaped protrusion on the lower side of the second rotating plate 16 is rotated toward the main key switch 12 to cause an interference phenomenon in contact with the '' '' shaped protrusion of the first rotating plate 15. When the rotating plate 15 is not rotated and the manual handle key switch 13 is locked by the handle socket while the main key switch 12 is locked by the lock, a 'U' shape of the lower side of the first rotating plate 15 is formed. On the electric actuator for the disconnector with the key interlock function, the projection is rotated toward the manual handle key switch 13 to cause an interference phenomenon in contact with the ']' shaped projection of the second rotating plate 16 and the second rotating plate 16 is not rotated. The technical point is about.

Electric actuator for disconnector, main key switch, handwheel switch, handle plug, key interlock, rotating plate, guide plate

Description

Electric control for disconnector with key interlock function {MOTOR OPERATING DEVICE FOR DISCONNECTING SWITCH WITH FUNCTION OF KEY INTERLOCK}

1 is an overall perspective view of a conventional electric actuator for disconnector

Figure 2 is a full perspective view of the electric actuator for the disconnector to which the present invention is applied

Figure 3 is an exploded perspective view of the electric actuator for the disconnector to which the present invention is applied

4 is a side view showing a key interlock portion of the present invention;

5 is a front view of a key interlock unit showing a state of driving the main key of the present invention;

Figure 6 is a front view of the key interlock portion showing the state when the main key lock of the present invention

Figure 7 is a front view of the key interlock portion showing the state of the manual handle key open of the present invention

Figure 8 is a front view of the key interlock portion showing the state when the manual handle key closed of the present invention

9 is a flowchart illustrating the operation of the electric actuator for the disconnector to which the present invention is applied.

 <Description of the symbols for the main parts of the drawings>

1: Electric motor operated for disconnector 2: Drive motor

3: Handle socket 4: Operation lever

5: handle 6: operating enclosure

10: key interlock part 11: cover

111: handle insertion hole 12: main key switch

13: Manual handle key switch 14: Handle plug

15: 1st rotating plate 15a, 16a: first latch

15b, 16b: first projection 15c, 16c: second projection

151,161: spring for position restoration 16: second rotating plate

17: guide plate 17a: guide groove

17b, 17c: engaging projection 18: control unit

181: first limit switch 182: second limit switch

The present invention relates to an electric actuator for a disconnector with a key interlock function, and more particularly, to cover the handle socket and to block the operation of a non-expert who does not have a key by including a main key switch and a manual handle key switch. The present invention relates to an electric actuator for a disconnector equipped with a key interlock function for selectively selecting electric or manual in order to prevent safety accidents caused by an unconscious manual operation attempt or an electric operation attempt during a manual operation.

In general, a disconnecting switch (DS) is installed before and after a power line, high voltage, or special high voltage bus or device, and is normally closed, and in case of failure, separates the separated circuit from the power source after removing the load current. In order to change the connection of the main circuit in a no-load state in which a normal load current is not opened or closed, but a breaker is opened in a transmission line or substation, etc., the circuit is opened and closed.

The manipulator for the disconnector used for opening and closing of the disconnector is mainly manufactured to use hydraulic pressure or electric power when a large amount of force is required to open and close the disconnector, but in case of emergency, the manipulator can be combined with a manual operation.

As shown in FIG. 1, a conventional motor-operated manipulator 1 is provided with a driving motor 2 on a rear side thereof so that a manager can be controlled remotely using a main panel, and a manipulator lever 4 is disposed on a right side thereof. A predetermined length is extended and installed from the gear box, and a gear box having a plurality of gears therein is provided at the center thereof to operate the actuator lever 4 forward and reverse by using the rotational force applied from the driving motor 2. It is installed and manufactured to form a handle socket (3) coupled to the handle (5) by extending a predetermined length on the front of the operating box (6) for manual operation in case of emergency operation that is not electric operation.

However, the conventional electric actuator 1 for disconnectors is exposed to the risk that it can be manually operated at any time by non-administrators who can illegally obtain the same or similar handles 5 in addition to the authorized administrator during the electric operation. There was this.

In addition, while the conventional electric control device 1 for disconnectors has the advantage of being able to operate manually in case of emergency, there is a problem that even a manager who has permission can be simultaneously operated due to carelessness during the electric operation.

The present invention is devised to solve such a conventional problem, and relates to an electric actuator for a disconnector with a key interlock function; Its purpose is to cover the handle socket and to provide the main key switch and the manual handle key switch to block the operation of the non-experts without the key, and to ensure the safety of unconscious manual operation during electric operation or electric operation attempt during manual operation. An object of the present invention is to provide an electric actuator for a disconnecting device equipped with a key interlock function for selecting an electric or manual alternative to prevent an accident in advance.

The present invention for achieving the above object in the electric actuator for the disconnector to open and close the circuit at no load by automatically rotating the actuator lever by the drive motor or by engaging the handle to the handle socket, the handle socket (3) is A cover 11 formed to surround the located side portion; A main key switch 12 formed on the front surface of the cover 11 and configured to select a driving or locking operation by inserting and rotating the main key; A manual handle key switch 13 formed on the front surface of the cover 11 and capable of selecting whether to open the handle socket by inserting and rotating the manual handle key; A handle insertion hole 111 penetrating the front surface of the cover 11 corresponding to the handle socket 3 is formed, and one end is connected to the manual handle key switch 13 and rotates about a rotation shaft provided at one side. A bent spoon-shaped handle plug 14 which opens and closes the handle insertion hole 111 by operating the manual handle key switch 13; Connected to the main key switch 12 is installed on the inside of the cover 11 so that the main key switch 12 is rotated together when rotating, and the 'U' toward the bottom and side '' '' shaped handwheel switch 13 side A disk-shaped first rotating plate 15 having a protrusion formed thereon and a first latch 15a for connecting with the position restoring spring 151; It is connected to the manual handle key switch 13 is installed inside the cover 11 so that the manual handle key switch 13 is rotated together when rotated, and the '' '' shaped projection toward the main key switch 12 side and the bottom ' A disk-shaped second rotating plate 16 on which a U'-shaped protrusion is formed and a second latch 16a for connecting with the position restoring spring 161 is formed; Guide grooves 17a for guiding rotation of the first and second latches 15a and 16a are formed, and locking projections 17b and 17c for fixing the other ends of the position restoring springs 151 and 161 are formed on the upper side. A guide plate 17 having a rectangular plate shape; And a control unit 18 for controlling power according to the operation of the main key switch 12, the manual handle key switch 13, and the handle socket 3, wherein the manual handle key switch 13 is rotated to handle At the time of opening the socket, the 'U' shaped protrusion on the lower side of the second rotating plate 16 is rotated toward the main key switch 12 to cause an interference phenomenon in contact with the '' '' shaped protrusion of the first rotating plate 15. When the rotating plate 15 is not rotated and the manual handle key switch 13 is locked by the handle socket while the main key switch 12 is locked by the lock, a 'U' shape of the lower side of the first rotating plate 15 is formed. The electric motor for the disconnector with the key interlock function, in which the projection is rotated toward the manual handle key switch 13 and causes an interference phenomenon in contact with the ']' shaped projection of the second rotating plate 16 so that the second rotating plate 16 does not rotate. In providing, the object is achieved.

In addition, the control unit 18 is located on one side of the guide groove 17a, and when the main key switch 12 is locked by the first latch 15a or when the manual handle key switch 13 is opened. The first limit switch 181, the contact is pressed by the second latch (16a) and; Positioned close to one side of the handle socket (3), the handle (5) inserted through the handle insertion hole 111 is contacted by the handle socket (3) pushed to the back side when combined with the handle socket (3) The pressed second limit switch 182; preferably includes.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, Figure 2 is an overall perspective view of the electric actuator for disconnectors to which the present invention is applied, Figure 3 is an exploded perspective view of the electric actuator for disconnectors to which the present invention is applied, Figure 4 is a side view showing the key interlock of the present invention, Figure 5 is The front view of the key interlock portion showing the state when the main key operation of the present invention, Figure 6 is a front view of the key interlock portion showing the state when the main key lock of the present invention, Figure 7 is the key showing the state when the manual handle key opening of the present invention 8 is a front view of the interlock portion, and FIG. 8 is a front view of the key interlock portion showing the state of the manual handle key closing of the present invention, and FIG. 9 is a flowchart of the operation of the electric actuator for the disconnector to which the present invention is applied.

The electric actuator 1 for the disconnecting device to which the present invention is applied has a key interlock function, which covers a handle socket and is equipped with a main key switch and a manual handle key switch to perform operation of a non-specialist without a key. In order to prevent the safety accidents caused by the unconscious manual operation attempt or the electric operation attempt during the manual operation, the electric or manual was selectively selected to operate.

The key interlock unit 10 implementing the key interlock function of the present invention includes a cover 11, a main key switch 12, a manual handle key switch 13, a handle plug 14, and a first rotating plate ( 15, a second rotating plate 16, a guide plate 17, and a control unit 18.

The cover 11 is for installing all the components of the key interlock portion 10, and is formed to surround the side portion where the handle socket 3 is located.

In addition, the main key switch 12 is formed on the front surface of the cover 11 and can be selected to drive or lock operation by inserting and rotating the main key.

In addition, the manual handle key switch 13 is formed on the front surface of the cover 11 can be selected whether the handle socket opening by rotating by inserting the manual handle key.

In addition, the handle plug 14 is formed in a bent spoon shape, and forms a handle insertion hole 111 penetrating through the front surface of the cover 11 corresponding to the handle socket 3, the manual handle key switch ( It is connected to the 13) and rotates around the rotary shaft provided on one side serves to open and close the handle insertion hole 111 by the operation of the manual handle key switch (13).

In addition, the first rotating plate 15 has a disk shape having a plurality of protrusions as a whole, and is connected to the main key switch 12 so that the main key switch 12 is rotated together when rotating the inside of the cover 11. It is installed and a ']' shaped projection toward the manual handle key switch 13 side and a 'U' shaped projection on the lower side is formed, and a first latch 15a for connecting with the position restoring spring 151 is formed.

In addition, the second rotating plate 16 is generally in the shape of a disk having a plurality of protrusions, and is connected to the manual handle key switch 13 so that the manual handle key switch 13 rotates together when rotating the inside of the cover 11. Is installed in the main key switch 12 side ']' shaped projection and the 'U' shaped projection is formed on the lower side and the position restoring spring 161 and the second latch (16a) for connection is formed.
Therefore, when the manual handle key switch 13 is rotated and the handle socket is opened, the 'U' shaped protrusion on the lower side of the second rotating plate 16 is rotated toward the main key switch 12 to simultaneously rotate the first rotating plate 15. ), The first rotating plate 15 is not rotated, and the manual handle key switch 13 is locked by the handle socket while the main key switch 12 is locked by locking. 1 'U' shaped projection on the lower side of the rotating plate 15 is rotated to the manual handle key switch 13 side, causing the interference phenomenon in contact with the ']' shaped projection of the second rotating plate 16, the second rotating plate 16 is It does not rotate.

In addition, the guide plate 17 has a rectangular plate shape as a whole, and a guide groove 17a for guiding rotation of the first and second catches 15a and 16a is formed, and the other ends of the position restoring springs 151 and 161 are formed. The locking projections 17b and 17c to be fixed are formed.

In addition, the controller 18 controls the power according to the operation of the main key switch 12, the manual handle key switch 13, and the handle socket 3, and controls the first and second limit switches 181 and 182. It has a configuration to include.

The first limit switch 181 is located at one side of the guide groove 17a, and when the main key switch 12 is locked by the first latch 15a or when the manual handle key switch 13 is opened. Is installed so that the contact is pressed by the second latch 16a.

In addition, the second limit switch 182 is located close to one side of the rear surface of the handle socket (3), the handle 5 is inserted through the handle insertion hole 111 is the back when combined with the handle socket (3) The contact is pushed by the handle socket 3 pushed to the side.

Hereinafter, the present invention will be described in detail through preferred embodiments. However, the present embodiments should be understood to explain the present invention in a better understanding, and should not be construed as limiting the present invention thereto.

Referring to the configuration of the preferred embodiment of the present invention with reference to Figures 2 to 6 as follows.

First, the box-shaped cover 11 is formed so as to surround the entire side portion in which the handle socket 3 is located in order to prevent the unauthorized access of the handle socket 3 of the electric actuator 1 for the disconnector. .

Next, the main key is inserted into the front right side of the cover 11 and rotated to form a main key switch 12 capable of selecting a driving or locking operation, and the manual handle key is inserted into the front left side to be symmetrical and rotated. It forms a manual handle key switch 13 to select whether the handle socket opening.

Next, a handle insertion hole 111 penetrating the front surface of the cover 11 corresponding to the handle socket 3 is formed, and one end is connected to the manual handle key switch 13 and centered on a rotation shaft provided at one side. By rotating to the handle handle 14 of the bent spoon-shaped to open and close the handle insertion hole 111 by the operation of the manual handle key switch 13 is installed.

Next, it is connected to the main key switch 12 is installed inside the cover 11 so that the main key switch 12 is rotated together when rotating, the first latch (15a) for connection with the position restoring spring (151) Formed and multiple projections formed " "The 1st rotating plate 15 of a shape is installed.

"모양으로 메인키 스위치(12)가 잠금위치에 있을시에는 회전되지 않는 제2 회전판(16)을 설치한다.Next, it is connected to the manual handle key switch 13 is installed on the inside of the cover 11 so that the manual handle key switch 13 is rotated together when rotating, and the second latch for connecting with the position restoring spring 161 16a is formed, but a plurality of protrusions are formed to cause interference with protrusions of the first rotating plate 15 when the handle socket of the manual handle key switch 13 is opened, and the handle of the manual handle key switch 13 is formed. The first rotating plate 15 is not rotated when the socket is opened, and a plurality of protrusions are formed to cause interference with the protrusions of the first rotating plate 15 when the main key switch 12 is locked.

&Quot; Install the second rotating plate 16 which is not rotated when the main key switch 12 is in the locked position.

Next, the guide protrusion 17a for guiding the rotation of the first and second catches 15a and 16a is formed in a “s” shape, and the catching protrusion 17b to which the other ends of the position restoring springs 151 and 161 are fixed. 17c) is formed, and a rectangular plate-shaped guide plate 17 is installed to accommodate the first and second rotating plates 15 and 16 and the handle plug 14 between the cover 11.

Next, a control unit 18 for controlling power according to the operation of the main key switch 12, the manual handle key switch 13 and the handle socket 3 is installed, and is located at one side of the guide groove 17a. When the main key switch 12 is locked, the first limit switch is installed to be pressed by the first latch 15a or by the second latch 16a when the manual handle key switch 13 is opened. 181 and a handle socket 3 which is positioned close to one side of the rear surface of the handle socket 3 and is pushed to the rear side when the handle 5 inserted through the handle insertion hole 111 is coupled to the handle socket 3. The second limit switch 182 is installed to be pressed by the contact.

Referring to Figures 7 to 9 the operation of the present invention installed to have the configuration as described above are as follows.

First, power is applied to drive the electric actuator 1 for the disconnector of the present invention.

Next, the general public who has the handle socket 3 covered with the cover 11 and does not have a main key and a manual handle key cannot operate even when the electric actuator 1 for the disconnector is approached.

Next, in order to operate the disconnector, an authorized administrator possessing the main key and the manual handle key accesses the key interlock unit 10, inserts the main key into the main key switch 12, and operates in the 'locked' position. Rotate the main key switch 12 to the position.

As the main key switch 12 is rotated, the first latch 15a of the first rotating plate 15 which is rotated together inside the cover 11 is guided from the upper side to the lower side along the guide groove 17a. "The contact of the first limit switch 181 located in the upper center of the shaped guide groove 17a is dropped (S100).

By dropping the contact of the first limit switch 181, the manager can remotely control the electric actuator 1 for the disconnector by using the main panel installed elsewhere (S130).

However, at this time, the handle insertion hole 111 is closed because the handle plug 14 is closed, even if the manager with the handle 5, the manual operation is impossible, it is impossible to perform the electric and manual operation at the same time.

Next, if the administrator wants to stop the operation of the disconnecting electric motor 1, insert the main key into the main key switch 12 and turn the main key from the 'operation' position to the 'lock' position to turn the main key switch ( By rotating 12, the first latch 15a of the first rotating plate 15 rotated together inside the cover 11 is guided from the lower side side to the upper center along the guide groove 17a, and has a "S" shape guide. The contact point of the first limit switch 181 located above the center of the groove 17a is pressed.

Then, the electric power using the main panel is disabled while the power is cut off to the electric actuator 1 for the disconnector through the control unit 18, and the handle plug 14 is in the 'closed' state, so that the handle 5 can be inserted. Manual operation is also impossible because it can not (S110).

If an administrator accidentally inserts the manual handle key while the main key switch 12 is in the 'locked' position, it may try to rotate the manual handle key switch 13 to the 'open' position.

However, when the main key switch 12 is in the 'locked' position, the first latch 15a of the first rotating plate 15 is positioned in the upper center, so that the first protrusion 16b of the second rotating plate 16 is closed. It is possible to prevent inadvertent safety accidents by the key interlock function, which is impossible to rotate due to the interference phenomenon of the second protrusion 15c of the first rotating plate 15.

Next, if the administrator needs to manually operate the electric actuator for the disconnector 1, insert the manual handle key into the manual handle key switch 13 and turn the manual handle key from the 'close' position to the 'open' position by turning the manual handle. Rotate the key switch 13.

As the manual handle key switch 13 is rotated, the second latch 16a of the second rotating plate 16 rotated together inside the cover 11 is guided from the lower side to the upper center along the guide groove 17a. Press the contact point of the first limit switch 181 located in the upper center of the S-shaped guide groove (17a) (S120). At the same time, as the handle plug 14 connected to the second latch 16a is rotated, the handle insertion hole 111 is opened to insert the handle 5.

Then, the electric power using the main panel is not possible while the power is cut off to the electric actuator 1 for the disconnector through the control unit 18, and the handle plug 14 is in the "s" state so that the handle 5 can be inserted. Only manual operation is possible (S140).

At this time, when the handle 5 is inserted through the handle insertion hole 111, the contact of the second limit switch 182 in close proximity while pressing the handle socket 3 is pressed while the electric actuator 1 for the disconnector 1 The power will be cut off again.

This prevents the electric and manual operation from being performed simultaneously even when the first limit switch 181 malfunctions or when the handle plug 14 is intentionally broken by the unauthorized public and the handle 5 is forcibly inserted. Safety accidents are measures to prevent.

Due to the careless mistake in the situation where the manual handle key switch 13 is in the 'open' position as described above, it may be to rotate the main key to rotate the main key switch 12 to the 'locked' position.

However, when the manual handle key switch 13 is in the 'open' position, the second latch 16a of the second rotating plate 16 is located in the upper center, so that the first protrusion 15b of the first rotating plate 15 is located. It is possible to prevent accidental safety accidents by the key interlock function that the rotation is impossible due to the interference phenomenon caught by the second projection (16c) of the second rotating plate (16).

Next, when the administrator wants to end the manual operation and perform the electric operation, remove the handle 5 and rotate the manual handle key switch 13 from the 'open' position to the 'close' position by rotating the manual handle key switch 13. 11) while the second latch 16a of the second rotating plate 16 rotated inward is guided from the upper center to the lower side along the guide groove 17a, the center upper part of the “s” -shaped guide groove 17a. The contact point of the first limit switch 181 positioned at is dropped. At the same time, as the handle plug 14 connected to the second latch 16a is rotated, the handle inserting hole 111 is sealed, so that the handle 5 cannot be inserted.

Since the contact point of the first limit switch 181 is dropped, the power supply of the electric actuator 1 for the disconnector is applied by the controller 18 so that the manager can only remotely operate the electric motor in the main panel, and the handle plug 14 Since the 'closed' state can not insert the handle (5) manual operation is impossible (S130).

Next, if the administrator wants to disable both electric and manual operation, insert and turn the manual handle key to rotate the manual handle key switch 13 to the 'closed' position, and then insert the main key and turn the main key switch. Rotate (12) to the 'lock' position.

Then, the electric power using the main panel is disabled while the power is cut off to the electric actuator 1 for the disconnector through the control unit 18, and the handle plug 14 is in the 'closed' state, so that the handle 5 can be inserted. Manual operation is also impossible because it can not (S110).

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Effects of the present invention that can be expected by the configuration and action as described above are as follows.

Cover the handle socket of the electric control device for the disconnector, and the main key switch and the manual handle key switch are provided to block the operation of the non-experts without the key, and for the unintentional manual operation during the electric operation or the electric operation attempt during the manual operation. It is a very useful design that can provide an electric actuator for a disconnector equipped with a key interlock function to selectively select electric or manual in order to prevent safety accidents in advance.

Claims (2)

In the electric actuator for the disconnector which opens and closes a circuit at no load by rotating a control lever manually by a drive motor or by engaging a handle to a handle socket, A cover 11 formed to surround a side portion of the handle socket 3; A main key switch 12 formed on the front surface of the cover 11 and configured to select a driving or locking operation by inserting and rotating the main key; A manual handle key switch 13 formed on the front surface of the cover 11 and capable of selecting whether to open the handle socket by inserting and rotating the manual handle key; A handle insertion hole 111 penetrating the front surface of the cover 11 corresponding to the handle socket 3 is formed, and one end is connected to the manual handle key switch 13 and rotates about a rotation shaft provided at one side. A bent spoon-shaped handle plug 14 which opens and closes the handle insertion hole 111 by operating the manual handle key switch 13; Connected to the main key switch 12 is installed on the inside of the cover 11 so that the main key switch 12 is rotated together when rotating, and the 'U' toward the bottom and side '' '' shaped handwheel switch 13 side A disk-shaped first rotating plate 15 having a protrusion formed thereon and a first latch 15a for connecting with the position restoring spring 151; It is connected to the manual handle key switch 13 is installed inside the cover 11 so that the manual handle key switch 13 is rotated together when rotated, and the '' '' shaped projection toward the main key switch 12 side and the bottom ' A disk-shaped second rotating plate 16 on which a U'-shaped protrusion is formed and a second latch 16a for connecting with the position restoring spring 161 is formed; Guide grooves 17a for guiding rotation of the first and second latches 15a and 16a are formed, and locking projections 17b and 17c for fixing the other ends of the position restoring springs 151 and 161 are formed on the upper side. A guide plate 17 having a rectangular plate shape; And a control unit 18 for controlling power according to the operation of the main key switch 12, the manual handle key switch 13, and the handle socket 3; When the manual handle key switch 13 is rotated to open the handle socket, the U-shaped protrusion at the lower side of the second rotating plate 16 is rotated toward the main key switch 12 to simultaneously rotate the first rotating plate 15. The first rotating plate 15 does not rotate by causing an interference phenomenon in contact with the ']' shape projection, When the manual handle key switch 13 locks the handle socket and the main key switch 12 rotates with the lock, the U-shaped protrusion on the lower side of the first rotating plate 15 is the manual handle key switch 13. The electric actuator for a disconnector with a key interlock function, characterized in that the second rotating plate 16 does not rotate by rotating toward the side to cause an interference phenomenon in contact with the ']' shaped projection of the second rotating plate 16. The method of claim 1, wherein the control unit 18, Located on one side of the guide groove (17a), by the first latch (15a) when locking the main key switch 12, or by the second latch (16a) when the manual handle key switch 13 is opened. A first limit switch 181 at which the contact is pressed; Positioned close to one side of the handle socket (3), the handle (5) inserted through the handle insertion hole 111 is contacted by the handle socket (3) pushed to the back side when combined with the handle socket (3) The second limit switch 182 is pressed; the electric actuator for a disconnector with a key interlock function, characterized in that it comprises a.

Images