KR101073681B1 - Inter lock device for bypass automatic transfer switch - Google Patents

Abstract

The present invention is to prevent the different power switching device is operated to be applied to the load side from the commercial power source and emergency power at the same time in the bypass power switching device having an automatic transfer device (ATS) of parallel structure An interlock device of a bypass power switching device.
The bypass power switching device of the prior art is switched to supply power to the load side through another power switching device when repairing, testing, or the like of one power switching device is required, and thus, for each power switching device of the bypass power switching device. Make it easy to repair, maintain and test. However, in the case of the bypass power switch as described above, when restarting after the completion of repair, test, etc. of one power switch, the power switch is repaired or tested while the other power switch is set to receive power from the commercial power source. When the target power switch is mounted on the switchboard with the power supplied from the emergency power, the two power switches connected in parallel are connected to the load with the commercial power and the emergency power connected, respectively. The power supplied from the power supply and the emergency power supply is applied together, and there is a problem that breakdown of equipment connected to the load terminal occurs due to overvoltage. This problem is also the same problem when power switching is performed such that another power switch is powered from emergency (or commercial) power with one power switch set to receive power from the commercial (or emergency) power. Will occur.
The present invention comprises an interlocking means of a switch means (levers) for operating commercial power and emergency power of the automatic switching device arranged in parallel. In the bypass power switching device, the automatic switching device is prevented from being switched by selecting different power sources. In the bypass power switching device, one power switching device and the other power switching device are switched to supply different power to the load side at the same time. An interlock device of a bypass power switching device is provided to prevent the power supply flowing into the load side at the same time to damage the load side equipment or to cause a large electrical safety accident.

Description

INTER LOCK DEVICE FOR BYPASS AUTOMATIC TRANSFER SWITCH}

The present invention is to prevent the different power switching device is operated to be applied to the load side from the commercial power source and emergency power at the same time in the bypass power switching device having an automatic transfer device (ATS) of parallel structure An interlock device of a bypass power switching device.

In general, large-scale workplaces such as hospitals, factories, research institutes, broadcasting stations, etc., which have problems in case of a power failure, have a generator to generate emergency power, and reserve power generated from such generators ( In order to supply emergency power) when a problem occurs in the commercial power supply, a high-pressure closed water switchgear equipped with a power switch (ATS) including an automatic power switch is installed.

The automatic power supply switch is a fixed terminal consisting of a commercial power terminal, an emergency power terminal and a load terminal, and an operation of being electrically connected to the commercial power terminal or the emergency power terminal in an electrically connected state with the load terminal. It consists of terminals.

The automatic power supply switching device requires a separate rotating device for rotation from the commercial power supply terminal to the emergency power supply terminal and the emergency power supply terminal to the commercial power supply terminal.

As such, the automatic transfer switch used in the switchboard is provided with a separate rotary device for rotation from the commercial power supply terminal to the emergency power supply terminal and the emergency power supply terminal to the commercial power supply terminal. The configuration is complicated, and if an abnormality occurs in any one rotary device, it may cause a problem of malfunction.

Therefore, in consideration of this point, the power switching device is connected in parallel to configure the power switching device to perform the switching to supply power through another power switching device provided in parallel when an error occurs in the power switching device. There is provided a bypass power switching device having a power switching device having a parallel structure for easily performing maintenance, testing of equipment, and the like.

FIG. 1 is a view illustrating a switchboard having a bypass power switching device including a power switching device having a parallel structure in the related art, and FIG. 2 is a circuit diagram of a power switching device connected in parallel with FIG. 1.

As shown in FIG. 1, the bypass power switching device of the related art has two power switching devices 10 and 20 installed inside the switchboard 30, and as shown in FIG. 2, each of the power switching devices. Supply power to the commercial power terminals 10-1 and 20-1 for supplying commercial power to the fixed terminal portions 10 and 20, the emergency power terminals 10-2 and 20-2 for emergency power supply, and the load side. The load terminals 10-3 and 20-3 are connected to each other in parallel to each other, and the movable terminals 10-4 and 20-4 provided in the respective power switching devices 10 and 20 are connected to the respective terminal portions. And to perform switching on.

In addition, lever fixing parts 10a and 20a for manual power switching are respectively formed on the front of each of the power switching devices 10 and 20 to be configured to perform power switching manually when necessary by the user.

The bypass power switching device of the related art having the above-described configuration is switched to supply power to the load side through the other power switching devices 10 and 20 when repairing or testing one power switching device 10 or 20 is required. By doing so, it is possible to easily perform repair, maintenance, testing, etc. of each power switching device of the bypass power switching device.

However, in the case of the bypass power switch as described above, when restarting after the completion of repair, test, etc. of one power switch, the power switch is repaired or tested while the other power switch is set to receive power from the commercial power source. When the target power switch is mounted on the switchboard with the power supplied from the emergency power, the two power switches connected in parallel are connected to the load with the commercial power and the emergency power connected, respectively. As power supplied from a power source and an emergency power source is applied together, a large accident such as damage or fire of facilities connected to a load terminal by two different commercial power source power sources and emergency power source power sources occurs.

This problem is also the same problem when power switching is performed such that another power switch is powered from emergency (or commercial) power with one power switch set to receive power from the commercial (or emergency) power. Will occur.

The present invention constitutes an interlocking means of a switch means (lever) for operating commercial power and emergency power of the automatic switching device arranged in parallel in order to solve such a conventional problem. In the bypass power switching device, the automatic switching device is prevented from being switched by selecting different power sources. In the bypass power switching device, one power switching device and the other power switching device are switched to supply different power to the load side at the same time. It is an object of the present invention to provide an interlock device of a bypass power switching device for preventing power from being simultaneously introduced to the load side and damaging the load side equipment or generating a large electrical safety accident.

The interlock device of the bypass power switching device of the present invention,

In a switchgear configuration in which a bypass power switching device in which a main automatic switching device and a bypass power switching device are configured in an electrically parallel configuration,

The bypass power switching device includes a handle switch panel for the user to manually switch between commercial power or emergency power, and a slide control panel for limiting the operation of the handle switch panel according to the power switching state of the main automatic switching device. Composed,

The main automatic switching device includes a commercial power manual lever and an emergency power manual lever for operating a switching drive control unit for the user to manually switch commercial power or emergency power, and one side of the commercial power manual lever and emergency power manual lever. And a commercial power lever cover and an emergency power lever cover which are driven according to the power switching state of the bypass power switching device to cover the commercial power manual lever, the emergency power manual lever and make the user unavailable.

The main automatic switching device 200 is switched to a different power from the bypass power switching device by operating a commercial power lever cover or an emergency power lever cover configured in the main automatic switching device according to the power switching state of the bypass power switching device. By bypassing the main automatic switching device interlock unit and the slide control panel configured in the bypass power switching device 100 according to the power switching state of the main automatic switching device to limit the operation of the handle switch panel bypass power And a bypass power switching device interlock part for preventing the switching device from being switched to a different power source from the main automatic switching device.

And the main automatic switching device is characterized in that it further comprises a withdrawal driving unit for withdrawing the main automatic switching device, and a withdrawal limiting unit for limiting the withdrawal of the withdrawal driving unit in accordance with the power switching state of the main automatic switching device.

According to the present invention as described above, in the bypass power switching device in which the power switching device is connected in parallel, one power switching device and the other power switching device is switched to supply different power to the load side at the same time commercial power and emergency power supply It is possible to provide an interlock device that can be introduced to the load side at the same time to prevent damage to the load side equipment or the occurrence of a large electrical safety accident.

In addition, it is easy to repair and check by constructing a drawing means which allows the main power switching device of the main power switching device to be easily drawn out. By configuring the drawing-out limiting means, it is possible to provide an interlock device for a power supply switching device that provides safety.

1 is a view showing a switchboard having a built-in bypass power switching device having a power switching device of a conventional parallel structure.
2 is a circuit diagram of a power switching device connected in parallel in FIG.
Figure 3 is a front view of the interlock device of the bypass power switching device of the present invention.
Figure 4 is a left side view of the interlock device of the bypass power switching device of the present invention.
5 is a right side view of the interlock device of the bypass power switching device of the present invention;
6A to 7D are views illustrating an interlock portion coupling structure between the bypass power switching device and the main automatic switching device of the main automatic switching device and the bypass power switching device, and FIGS. 6A and 6B illustrate an operating state of the main automatic switching device. FIG. 7A and 7B illustrate a power limiting operation of the main automatic switching device according to an operation state of the bypass power switching device.
8 is a view showing the operating state of the main automatic switching device interlock unit (emergency power cover control link, emergency power cover link) when the commercial power supply is connected in the bypass power switching device.
9 is a view showing the operating state of the main automatic switching device interlock unit (commercial power cover control link unit, commercial power cover link) when the emergency power supply is connected in the bypass power switching device according to the present invention.
10 is a view showing the configuration of the withdrawal limiting portion according to the present invention.
Fig. 11 is a diagram showing the structure of a withdrawal limiting part according to the present invention.
12 is a view showing a withdrawal limiting device release operation for withdrawing the main automatic switching device in the present invention.
13 and 14 are views showing the withdrawal operation state of the main automatic switching device in the present invention.
Fig. 15 is a view showing a takeout knob in the present invention.
16 and 17 are views for explaining the operation of the commercial power slide piece and the emergency power slide piece in accordance with the operation of the handle portion in the present invention.
18 is a view showing an appearance in a state where an interlock device of the bypass power switching device of the present invention is mounted.

Referring to the interlock device of the bypass power switching device of the present invention with reference to the embodiment shown in Figures 3 to 18 will be described the structure and operation process as follows.

A fixed terminal composed of a commercial power terminal and an emergency power terminal, a movable terminal contacting the fixed terminal to connect a load and a commercial power terminal or an emergency power terminal, and switching the commercial power terminal or emergency power terminal by driving the movable terminal In a switchgear configuration in which a main automatic switching device including a switching driving control unit and a bypass power switching device including a bypass power switching device are configured in an electrical parallel configuration,

The bypass power switching device 100 is a handle switch panel 110 for the user to manually switch between commercial power or emergency power, and the handle switch panel 110 according to the power switching state of the main automatic switching device 200. It comprises a slide control panel 120 for limiting the operation of the main automatic switching device 200 is a commercial power manual for operating the switching drive control unit for the user to manually switch the commercial power or emergency power The lever 210 and the emergency power manual lever 220, the commercial power manual lever 210, the emergency power manual lever 220 is configured on one side of the power switching state of the bypass power switching device 100 Therefore, it is driven to cover the commercial power manual lever 210, the emergency power manual lever 220 is configured to include a commercial power lever cover 230, the emergency power lever cover 240 to make the user unavailable,

The main automatic switching device 200 is operated by operating the commercial power lever cover 230 or the emergency power lever cover 240 configured in the main automatic switching device 200 according to the power switching state of the bypass power switching device 100. By the main automatic switching device interlock unit 300 to prevent the switching to a different power source than the bypass power switching device 100 and to prevent the mixing phenomenon, the bypass according to the power switching state of the main automatic switching device 200 By operating the slide control panel 120 configured in the pass power switching device 100 to limit the operation of the handle switch panel 110, the bypass power switching device 100 is switched to a different power than the main automatic switching device 200. It is configured to include a bypass power supply switching device interlock unit 400 to prevent being.

And the withdrawal driving unit 500 for drawing out the main automatic switching device 200 and the withdrawal limiting unit 600 for limiting the withdrawal of the withdrawal driving unit 500 according to the power switching state of the main automatic switching device 200. It is configured to further include.

The handle switch panel 110 is coupled to the main panel 130, the commercial power slide piece 111 and the emergency power slide piece 112 coupled in a structure capable of moving up and down, and the left and right rotation in the direction that the user rotates The handle portion 113 which moves the commercial power slide piece 111 or the emergency power slide piece 112 upward to contact the commercial power terminal or the emergency power terminal with the movable terminal of the bypass power switching device 100. It is configured to include.

The commercial power slide piece 111 and the emergency power slide piece 112 form slots 111a and 112a so that the engaging projection 131 of the main panel 130 can slide in a fitted state for vertical movement. The control protrusions 113c of the handle portion 113 are fitted at positions corresponding to the left and right sides, and the control protrusion coupling portions 111b and 112b are formed to be controlled to move upward in accordance with the rotation of the handle portion 113.

The handle portion 113 is a slot formed so that the handle shaft 113a for rotating the handle 113d and the fixed shaft of the lower main panel 130 are rotated in accordance with the rotation of the handle shaft 113a. 113b and the commercial power slide piece 111 and the emergency power slide piece 112 in the directions of the commercial power slide piece 111 or the emergency power slide piece 112 in accordance with the rotation of the handle shaft 113a. The control projection engaging portion (111a) (112b) is inserted into the control projection 113c for sliding the commercial power slide piece 111 or emergency power slide piece 112 upward.

The slide control panel 120 is connected to the bypass power switching device interlock unit 400 and operated, and includes two limiting protrusions 121 coupled to respective slots 132 configured on the main panel 130. And slides along the rear surface of the main panel 130 by the bypass power switching device interlock unit 400 to change the position of the limiting protrusion 121 in the slot 132 so that the commercial power slide piece 111 or the emergency power source is changed. It is configured to limit the upper movement of the slide piece 112.

The main automatic switching device interlock unit 300 is a commercial power cover control link unit 310 and emergency power lever cover 240 for driving and rotating the commercial power lever cover 230 according to the operation state of the handle switch panel 110. Emergency power cover control link unit 320 and the commercial power cover control link unit 310 for rotating the drive according to the operating state of the commercial power cover control link unit 310 commercial power lever cover 230 An emergency power source connected to the commercial power cover link 330 and the emergency power cover control link unit 320 to operate the emergency power lever cover 240 according to the operation state of the emergency power cover control link unit 320. The cover link 340 is configured.

The bypass power switching device interlock unit 400 is connected to the commercial power switching link means of the main automatic switching device 200, the commercial power link unit 410 for transmitting a commercial power contact state of the main automatic switching device 200. And an emergency power link unit 420 connected to the emergency power switching link means of the main automatic switching device 200 to transmit an emergency power contact state of the main automatic switching device 200, and a commercial power link unit 410. And connected to the emergency power link unit 420 and connected to the slide control panel 120 to control the switching state of the bypass power according to the commercial power or emergency power switching state of the main automatic switching device 200. It is configured to include a power control link unit 430.

The bypass power switching device is configured to be used in an emergency for failure, inspection or repair of the main automatic switching device. In the present invention, the main automatic switching device for preventing the main automatic switching device and the bypass power switching device from mixing. And an interlock device for limiting the power switching operation to each other according to the operating state of the bypass power switching device, and a drawing means for drawing out for inspection and repair of the main automatic switching device, Characterized in that it comprises a withdrawal limiting means for limiting the operation of the withdrawal means not to withdraw in the state.

The handle switch panel 110 is a selection means for selecting and switching the power of the bypass power switching device 100.

The handle switch panel 110 is configured to include a commercial power slide piece 111 and the emergency power slide piece 112 and the handle portion 113 for the user to rotate to move up and down on the fixed main panel 130. , The commercial power slide piece 111 and the emergency power slide piece 112 are means for informing the current connection state of the bypass power switching device 100 and are restricted by the slide control panel 120 to bypass power. It is a means for preventing the power switching of the switching device 100 is made.

The slots 111a and 112a formed on the commercial power slide piece 111 and the emergency power slide piece 112 are connected to the main panel by the handle part 113 in a state where the engaging projection 131 of the main panel 130 is fitted. 130 is a means for allowing the slide to move up and down.

And the commercial power slab piece 111 and the emergency power slide piece 112, as shown in Fig. 16 and 17, the control projection coupling portion 112b is formed in a corresponding position.

The slot 132 is inserted into the control protrusion 113c of the handle portion 113 so that the commercial power slide piece 111 and the emergency power slide piece 112 can be moved upward by the control protrusion 113c. It is a means for.

The handle portion 113 is a means for allowing the user to rotate the handle by using the handle 900 to enable the power connection of the main automatic switching device 200, the commercial power slide piece 111 and the emergency power slide piece ( 112).

The handle part 113 has a structure in which the handle shaft 113a is coupled to the fixed shaft of the main panel 130 and rotated, and a control protrusion 113c is formed on the rear surface.

The control protrusion 113c is moved upwards or leftward as the handle part 113 rotates, while being inserted into the control protrusion coupling part 112b of the commercial power slide piece 111 and the emergency power slide piece 112, and upwards. Means for moving the slide.

In addition, by configuring the switching link means for the drive switching in the commercial power supply control unit and the emergency power supply control unit for performing the commercial power or emergency power connection of the bypass power switching device 100 switched by the handle switch panel 110 The switching link means is provided to transfer the power switching state of the bypass power switching device to the commercial power cover control link unit 310 and the emergency power cover control link unit 320 of the main automatic switching device interlock unit 300. Applicable using various forms of well-known link means, the contents thereof will be omitted in the drawings.

The slide control panel 120 is connected by the bypass power control link unit 430 and the link means, and thus the commercial power slide piece 111 or the emergency power slide piece 112 according to the operating state of the bypass power switching device 100. Means to limit the upward movement of

The link means of the slide control panel 120 may be applied to various examples as long as the link means of the slide control panel 120 can be configured as shown in the detail of FIG. 10.

The first control link 123 which is moved up and down according to the operation of the second bypass power connector 432 of the bypass power control link unit, and the connecting shaft connected to the first control link 123 and the main panel 130 ( And a second control link 122 for moving the slide control panel 130 left and right by moving up and down within the slot 124 about the center 122a.

The emergency power manual lever 220 and the commercial power manual lever 210 of the main automatic switching device 200 are means for selecting commercial power or emergency power in this embodiment. It consists of a structure.

The switching state of the commercial power manual lever 210 is transmitted to the commercial power link unit 410 of the bypass power switching device interlock unit 400 through the commercial power switching link means in the commercial power drive control unit, and the emergency power manual lever. The switching state of the 220 is transmitted to the emergency power link unit 420 of the bypass power switching device interlock unit 400 through the emergency power switching link means in the emergency power drive control unit.

The commercial power switching link means and the emergency power switching link means can be implemented using various link means, which are schematically shown in this embodiment as shown in FIGS. 6A and 6B.

The commercial power switching link means includes a first switching link 211 that rotates according to the on / off operation of the commercial power manual lever 210, and a first switching link 211 to rotate the commercial power link unit 410. It comprises a second switching link 212 in contact with one side, the emergency power switching link means is a first switching link 221 to rotate in accordance with the on / off operation of the emergency power manual lever 220, and The second switching link 222 for rotating the third switching link 223 and the second switching link 222 in accordance with the rotation of the first switching link 221 to the first emergency power supply connecting portion 421. It comprises a third switching link 223 that acts.

The commercial power lever cover 230 and the emergency power lever cover 240 are configured at one side of the commercial power manual lever 210 and the emergency power manual lever 22 to provide a commercial power manual lever 210 or an emergency power manual lever. It is a means for making it impossible to select the power source by covering the handle 220 so that the handle 700 can not be inserted.

The commercial power lever cover 230 and the emergency power lever cover 240 are operated according to the power state connected from the bypass power switching device 100, and are controlled by the main automatic switching device interlock unit 300. .

The main automatic switching device interlock unit 300 controls the commercial power lever cover 230 or the emergency power lever cover 240 configured in the main automatic switching device 200 according to the power switching state of the bypass power switching device 100. It is a means for preventing the main automatic switching device 200 is switched to a different power source than the bypass power switching device 100 by operating.

The commercial power cover control link unit 310 of the main automatic switching device interlock unit 300 is a means for transmitting the power switching state of the bypass power switching device 100.

The emergency power cover control link unit 320 is a means for transmitting the power switching state of the bypass power switching device 100.

The commercial power cover control link unit 310 and the emergency power cover control link unit 320 is connected to the switching link means of the switching drive control unit is driven in accordance with the operating state of the handle switch panel 110 in the present embodiment It is comprised on the left and right sides, respectively.

The commercial power cover link 330 and the emergency power cover link 340 are connected to the commercial power cover control link unit 310 and the emergency power cover control link unit 320 to switch power of the bypass power switching device 100. It is a means for operating the commercial power lever cover 230 and the emergency power lever cover 240 of the main automatic switching device 200 by receiving the state.

The commercial power cover control link unit 310 is connected to the switching link means of the switching drive control unit of the bypass power switching device 100, the first cover control to rotate in accordance with the switching operation of the bypass power switching device 100 The linear motion of the connection part 311, the second cover control connection part 312 and the second cover control connection part 312 which are horizontally linearly moved in accordance with the rotation of the first cover control connection part 311 is changed to a vertical motion. And a third cover control connector 313 for operating the power cover link 330.

The emergency power cover control link unit 320 may also be configured to include a first cover control connection unit 321, a second cover control connection unit 322, and a third cover control connection unit 323.

The link shafts 230a and 240a of the commercial power lever cover 230 and the emergency power lever cover 240 are exposed to the outside of the main body of the switchboard so that one side of the commercial power cover link 330 and the emergency power cover link 340 are provided. Located in the commercial power cover link 330 and the emergency power cover link 340 is configured to be operated by the third cover control connecting portion 313.

Considering that the commercial power manual lever 210 and the emergency power manual lever 220 are turned on / off at different positions, the cover of the commercial power lever cover 230 and the emergency power lever cover 240 are provided. Considering that the operations are opposite to each other, that is, the commercial power manual lever cover 230 covers the commercial power manual lever 210 while moving from the bottom to the top, and the emergency power lever cover 240 descends from the top to the bottom. In consideration of covering the power manual lever 220, the commercial power cover link 330 is configured on the left side of the link shaft 230a and pushes the link shaft 230a while rotating in the counterclockwise direction. The 340 is configured on the right side of the link shaft 240a and rotates the clock shaft while pushing the link shaft 240a to operate the emergency power lever cover 240.

The bypass power switching device interlock unit 400 operates the slide control panel 120 configured in the bypass power switching device 100 according to the power switching state of the main automatic switching device 300 to operate the handle switch panel 110. By limiting the operation of the bypass power switching device 100 to prevent switching to a different power source than the main automatic switching device 200.

The slide control panel 120 is connected to the bypass power switching device interlock unit 400 is a means for limiting the upper movement of the commercial power slide piece 111 or the emergency power slide piece 112.

The slide control panel 120 slides on the rear surface of the main panel 130 by the bypass power switching device interlock unit 100, and is coupled to each slot 132 configured on the main panel 130. Limiting protrusion 121 is moved along the slot 132 is located on top of the commercial power slide piece 111 or the emergency power slide piece 112 is configured to limit their movement.

The commercial power link unit 410 of the bypass power switching device interlock unit 400 is connected to the commercial power switching link unit of the commercial power switching drive control unit of the main automatic switching device 200 to provide the main automatic switching device 200. Means for transmitting the commercial power contact state.

The emergency power link unit 420 is connected to the emergency power switching link means of the emergency power switching drive control unit of the main automatic switching device 200 to transmit the emergency power contact state of the main automatic switching device 200.

The bypass power control link unit 430 is connected to the commercial power link unit 410 and the emergency power link unit 420 to slide the commercial power supply or emergency power switching state of the main automatic switching device 200 to the slide control panel 120. By means of transmitting to, the control the distance of the slide into the main panel 130 of the slide control panel 120 in accordance with the switched power state of the main automatic switching device 200 of the limit projection 121 in the slot 132 It is a means to adjust the position.

The emergency power link unit 420 is connected to the emergency power switching link means of the emergency power switching drive control unit of the main automatic switching device 200 and rotates according to the operation of the emergency power switching drive control unit 421. Up and down linear movements of the second emergency power connector 422 and the second emergency power connector 422, which are connected to the first emergency power connector 421 and linearly move according to the rotation of the first emergency power connector 421. And a third emergency power connector 423 for converting to vertical movement.

The reason why the emergency power link unit 420 is configured as described above is because the directions of the power received by the commercial power link unit 410 and the emergency power link unit 420 are reversed when switching between emergency power and commercial power. The bypass power control link unit 430 is configured to further include a link means for switching the movement direction in the emergency power link unit 420 so that the force of the same direction can be delivered.

The bypass power control link unit 430 is connected to the third emergency power connection unit 423 and the commercial power link unit 410, and has a first bypass power control connection unit 431 vertically moving up and down, and one end thereof. The second bypass power source that is connected to the slide control panel 120 and one point is connected to the first bypass power connection unit 431 so that the one end of the up and down movement with respect to the vertical movement of the first bypass power connection unit 431 It is configured to include a control connection 432.

Here, the length of the third emergency power connector 423 of the emergency power link unit 420 connected to the first bypass power control connector 431 is different from the length of the commercial power link unit 410 (commercial power link). The length of the part is long, so that the moving distance of the first bypass power connector 431 is set differently so that the sliding distance of the slide control panel 120 is set differently.

That is, by lengthening the distance connected to the first bypass power connector 431, the movement transmitted to the first bypass power connector 431 is increased to increase the sliding distance of the slide control panel 120 to increase the emergency power. The limiting protrusion 121 of the slide control panel 120 is positioned above the slide piece 112 so that it cannot be switched to the emergency power source.

The drawing drive part 500 is a means for drawing out the main automatic switching device 200.

In this embodiment, the withdrawal limiting means of the main automatic switching device 200 is provided.

The withdrawal limiting unit 600 is a means for limiting the withdrawal of the withdrawal driver 500 according to the power switching state of the main automatic switching device 200. The main automatic switching device 200 may be any one of commercial power or emergency power. If connected, it is a means for making it impossible to withdraw the main automatic switching device 200.

13 and 14, the drawing drive unit 500 is configured from the upper side of the main automatic switching device 200 to the left and right sides, respectively configured to the left and right sides, the main by using the take-out knob 800 The automatic switching device 200 to be drawn out of the main body.

The first drawer connecting part configured to hook the hook portion 510 so that one side can hook the drawer handle 800 and rotates by the drawer handle 800 to linearly move the second drawer connection part 530 connected to the other side connection part. 520, the second drawing connection part 530 linearly moving by the first drawing connection part 520, and the third drawing connection part 540 converting the linear motion of the second drawing connection part 530 into the vertical motion. And a fourth lead-out connector 550 vertically moved by the third lead-out connector 540 and a fourth lead-out connector 550 to rotate in accordance with the vertical movement of the fourth lead-out connector 550. It is configured to include a withdrawal ring 560 to pull the withdrawal hook 570 configured in the switching device 200 to withdraw the main automatic switching device 200.

The take-out hook 570 is configured in the main automatic switching device 200, when pulled by the withdrawal ring 560, the coupling structure for advancing forward in the opposite direction to the direction of pulling the connected main automatic switching device 200 Is made of.

The withdrawal limiting unit 600 is connected to the first bypass power connection unit 431 and the first withdrawal limit connection unit 610 which is operated by converting the vertical movement of the first bypass power connection unit 431 into a horizontal linear motion. And, the operation is limited to the first withdrawal restriction connection part 610 is configured to include a withdrawal limit cover portion 620 to determine the exposure of the hook portion 510 that can be hooked by the withdrawal handle (800).

The withdrawal restriction cover part 620 is hooked to the withdrawal restriction part 621 which is caught by the first withdrawal restriction connection part 610 and the withdrawal driving part 500 which is caught by the withdrawal handle 800. Hook portion cover 622 to prevent the front exposure, and the hook portion cover 622 of both sides are connected to both ends and rotated about the center point to enable horizontal linear movement in the opposite direction to each other by the force acting on one side When there is no force applied to the rotary link unit 623 and the rotary link unit 623 by applying the elastic force to the rotary link unit 623, the hook part cover 622 is returned to its position and the hook unit 510 is again. It is configured to include a return means 624 to prevent the front of the, withdrawal restriction lock portion 621 is integrally configured to the hook portion cover 622 of one side, the user applies an external force To apply force to horizontally move the hook portion 622 It is configured to include a swibu (621a).

The withdrawal restriction lock part 621 forms a push part 621a to one side and is formed with a groove so that the first withdrawal restriction connection part 610 can be fitted, and accordingly, according to the power switching state of the main automatic switching device 200. The first withdrawal limit connection part 610 which is linearly moved by the moving first bypass power connection part 431 is inserted, and the first withdrawal limit when the main automatic switching device 200 is not connected to any power source. The connection part 610 is separated from the drawout limit lock part 621, and the user pushes the drawer lock part 621 to move the hook part cover 622 to move the hook part 510 of the drawout drive part 500 to the outside. By exposing the pull-out handle 800 to operate the pull-out driving unit 500 is made of a structure to draw the main automatic switching device 200.

Referring to the operation of the present invention having such a configuration as follows.

The bypass power switching device 100 does not normally operate.

That is, as shown in FIG. 12, the control protrusion 113c is positioned at the center of the handle 113d so that the control protrusion coupling portions 111b and 112b of the commercial power slide piece 111 or the emergency power slide piece 112 are located. It will remain uncoupled anywhere.

Therefore, the movable terminal of the bypass power switching device 100 maintains a neutral point that is not in contact with any of the fixed terminals.

Here, a description will be given of a case in which the power supply is cut off and the bypass power switching device 100 is operated for reasons such as troubleshooting, maintenance, and the like of the main automatic switching device 200.

As illustrated in FIG. 18, the handle grip 900 is inserted into the handle 113 of the bypass power switching device 100 to rotate by selecting a commercial power source or an emergency power source.

First, when selecting the commercial power by rotating the handle 113d to the right, as shown in Figure 7a, the control projection 113c of the handle portion 113 is the control projection engaging portion of the commercial power slide piece 111 If the handle portion 113 is further rotated, the control protrusion 113c is pushed up to the upper side of the commercial power slide piece 111 in a state where the control protrusion 113c is fitted to the control protrusion coupling portion 111b.

At this time, the first cover control connecting portion 311 of the emergency power cover control link portion 320 connected to the switching link means configured on the rotation shaft or the switching drive control portion of the handle portion 113 is pulled, and thus the second cover control connecting portion ( As the 312 is rotated, the third cover control connecting portion 313 is pulled upward.

At this time, as the third cover control connecting portion 313 pulls the emergency power cover link 340, the emergency power cover link 340 pushes the link shaft 240a of the emergency power lever cover 240, and thus the emergency power lever cover 240 Rotate to cover the emergency power manual lever 220.

Therefore, the user can prevent the main power switching device 200 from being switched to the emergency power when the bypass power switching device 100 is selected, thereby preventing the power supply from being mixed with each other.

When the handle part 113 is rotated to the left side, as shown in FIG. 7B, the control protrusion 113c of the handle part 113 is coupled to the control protrusion coupling part 112b of the emergency power slide piece 112. When it is rotated and rotated further, the emergency power slide piece 112 is moved upward by the control protrusion 113c, and the bypass power switching device 100 is switched to the emergency power.

As described above, the first cover control connecting portion 311 of the commercial power cover control link portion 310 is rotated in the counterclockwise direction by the rotation axis of the handle portion 113, accordingly, the second cover control connecting portion 312 ) Is advanced, and the third cover control connector 313 is rotated in the clockwise direction, while the fourth cover control connector 313 is vertically moved downward to rotate the commercial power cover link 330 counterclockwise. The commercial power lever cover 230 covers the commercial power manual lever 210 by pushing the link shaft 230a of the power lever cover 230 to close.

Therefore, the user can prevent the power supply of the bypass power switching device 100 from being switched to the commercial power in the state where the emergency power is selected so that different power is supplied.

Meanwhile, the case where the bypass power switching device 100 is operated in the state where the main automatic switching device 200 is operated will be described below.

When the main automatic switching device 200 is operated in a state of being switched to commercial power, that is, when the commercial power manual lever 210 is moved upward and operated, the first switching link 211 connected thereto rotates clockwise. While the second switching link 212 is pressed to one side of the commercial power link unit 410.

Accordingly, as the commercial power link unit 410 is rotated, the first bypass power connection unit 431 of the bypass power control link unit 430 is pushed up.

Accordingly, as the second bypass power connector 432 connected to the first bypass power connector 431 is pushed up, the second control link 123 connected to the front end thereof is pushed upward, and the second control link 123 is pushed upward. Moves the first control link 122 downward in the slot 124.

The second control link 123 moves the slide panel 120 while being moved about the connection shaft 122a connected to the main panel 130.

Thereafter, the slide control panel 120 slides on the rear surface of the main panel 130 by the received force.

At this time, the slide control panel 120 is slid to the end.

Accordingly, the limiting protrusion 121 of the slide control panel 120 is positioned above the emergency power slide piece 112 while moving along the slot 132.

When the user wants to move the emergency power slide piece 112 upward by rotating the handle portion 113 of the bypass power switching device 100, the movement is restricted by the limiting protrusion 121 so as not to move upward. As a result, power switching to the emergency power supply is not possible.

According to this, the bypass power switching device 100 can not select the emergency power in the state in which the main automatic switching device 200 selects the commercial power, it is possible to prevent the mixing phenomenon that different power is supplied.

In addition, when the main automatic switching device 200 is to operate the bypass power switching device 100 in the state of switching to the emergency power source, as shown in Figure 6b, the switching link means first switching link (221) and the first The emergency power link unit 420 is operated by the two-switching link 222 and the third switching link 223, so that the slide control panel 120 slides and slides as described above.

When the emergency power link unit 420 operates, the first emergency power connection unit 421 is rotated counterclockwise while one side is pushed up by the third switching link 223, and thus the second emergency power source unit 421 is rotated. The connecting portion 422 is pulled, and the third emergency power connecting portion 423 rotates counterclockwise to push up the first bypass power connecting portion 431 to the upper portion.

At this time, the length of the third emergency power connector 423 connected to the first bypass power connector 431 is shorter than that of the commercial power link unit 410, so that the commercial power link unit 410 is the first bypass power connector 431. The distance to push up to the third emergency power connector 423 is shorter than the distance to push up.

Therefore, the distance at which the slide control panel 120 slides is shorter when the commercial power is used in the main automatic switching device 200 than when the emergency power is used.

Therefore, the limiting protrusion 121 of the slide control panel 120 is positioned above the commercial power slide piece 111 while moving along the slot 132.

If the user wants to move the commercial power slide piece 111 to the upper side by rotating the handle portion 113 of the bypass power switching device 100 so that the movement is limited by the limiting protrusion 121 so as not to move upward. As a result, power switching to the commercial power supply is not possible.

Therefore, the bypass power switching device 100 is not able to select the commercial power in the state in which the main power switching device 200 selects the emergency power, it is possible to prevent the contact phenomenon that different power is supplied.

That is, since the length of the commercial power link unit 410 is longer than that of the third emergency power connector 423 connected to the first bypass power connector 431, the first bypass power connector 431 may be transferred even when the same force is transmitted. As the pushing distance is changed, the moving distance of the slide control panel 120 is changed.

Claims (7)

In a switchgear configuration in which a bypass power switching device in which a main automatic switching device and a bypass power switching device are configured in an electrically parallel configuration,
The bypass power switching device 100 is a handle switch panel 110 for the user to manually switch between commercial power or emergency power, and the handle switch panel 110 according to the power switching state of the main automatic switching device 200. It is configured to include a slide control panel 120 to limit the operation of,
The main automatic switching device 200 is a commercial power manual lever 210 and emergency power manual lever 220 for operating the switching drive control unit for the user to manually switch the commercial power or emergency power, and the commercial power manual The lever 210 is configured on one side of the emergency power manual lever 220 and is driven in accordance with the power switching state of the bypass power switching device 100 to operate the commercial power manual lever 210 and the emergency power manual lever 220. The cover includes a commercial power lever cover 230 and an emergency power lever cover 240 to be disabled by the user,
The main automatic switching device 200 is operated by operating the commercial power lever cover 230 or the emergency power lever cover 240 configured in the main automatic switching device 200 according to the power switching state of the bypass power switching device 100. The main power switching device interlock unit 300 and the main power switching device 200 according to the power switching state of the main automatic switching device 200 to prevent the switch from being switched to a power source different from that of the bypass power switching device 100. By operating the slide control panel 120 configured in the 100 to limit the operation of the handle switch panel 110 to prevent the bypass power switching device 100 is switched to a different power than the main automatic switching device 200 Bypass power switching device interlock device of the bypass power switching device characterized in that it comprises a. According to claim 1, wherein the main automatic switching device 200 is a pull-out driving unit 500 for drawing out the main automatic switching device 200 and the take-out driving unit 500 according to the power switching state of the main automatic switching device 200 The interlock device of the bypass power switching device further comprises a withdrawal limiting unit (600) for limiting the withdrawal. The method of claim 1, wherein the handle switch panel 110 is coupled to the main panel 130, the commercial power slide piece 111 and the emergency power slide piece 112 are coupled in a structure capable of sliding up and down, and the user Rotating left and right in the direction to rotate to move the commercial power slide piece 111 or the emergency power slide piece 112 upward to contact the movable terminal of the bypass power switching device 100 to the commercial power terminal or the emergency power terminal. Is configured to include a handle portion 113,
The commercial power slide piece 111 and the emergency power slide piece 112 form slots 111a and 112a so that the engaging projection 131 of the main panel 130 can slide in a fitted state for vertical movement. The control protrusion 113c of the handle portion 113 is fitted at a position corresponding to the left and right, and the control protrusion coupling portions 111b and 112b are formed to be controlled to move upward in accordance with the rotation of the handle portion 113.
The handle portion 113 is a slot formed so that the handle shaft 113a for rotating the handle 113d and the fixed shaft of the lower main panel 130 are rotated in accordance with the rotation of the handle shaft 113a. 113b and the commercial power slide piece 111 and the emergency power slide piece 112 in the directions of the commercial power slide piece 111 or the emergency power slide piece 112 in accordance with the rotation of the handle shaft 113a. It is configured to include a control projection 113c is inserted into the control projection coupling portion (111a) (112b) for sliding the commercial power slide piece 111 or emergency power slide piece 112 upward.
The slide control panel 120 is operated by being connected by the bypass power switching device interlock unit 400 and the control link means, and two restriction protrusions coupled to respective slots 132 configured on the main panel 130. And a position of the limiting protrusion 121 in the slot 132 while being slid along the rear surface of the main panel 130 by the bypass power switching device interlock unit 400. 111) or the interlock device of the bypass power switching device, characterized in that configured to limit the upper movement of the emergency power slide piece (112). According to claim 1, The main automatic switching device interlock unit 300 is a commercial power cover control link unit 310 for driving and rotating the commercial power lever cover 230 according to the operating state of the handle switch panel 110 and It is connected to the emergency power cover control link unit 320 and the commercial power cover control link unit 310 for driving and rotating the emergency power lever cover 240, and commercially available according to the operation state of the commercial power cover control link unit 310. The commercial power cover link 330 for operating the power lever cover 230 and the emergency power cover control link unit 320 are connected to the emergency power cover control link unit 320 according to the operation state of the emergency power lever cover 240. Interlock device of the bypass power switching device, characterized in that it comprises an emergency power cover link (340) for operating. The commercial power contact state of the main automatic switching device 200 is connected to the switching link means of the commercial power switching driving control unit of the main automatic switching device 200. Emergency power supply for transmitting the emergency power contact state of the main automatic switching device 200 is connected to the commercial power link unit 410 and the emergency power switching drive control unit switching link means of the main automatic switching device 200 for transmitting the It is connected to the link unit 420, the commercial power link unit 410 and the emergency power link unit 420 to control the switching state of the bypass power according to the commercial power or emergency power switching state of the main automatic switching device 200 Interlock device of the bypass power switching device, characterized in that it comprises a bypass power control link unit 430 connected to the slide control panel 120 in order to. The second drawing device of claim 2, wherein the drawing drive part 500 constitutes the hook part 510 so that one side can hang the drawing handle 800, and is rotated by the drawing handle 800 to be connected to the second connection part. The first drawing connector 520 linearly moves the connecting part 530, the second drawing connector 530 linearly moving by the first drawing connector 520, and the linear movement of the second drawing connector 530 is vertical. The third lead-out connector 540 for converting to the movement, the fourth lead-out connector 550 vertically moved by the third lead-out connector 540, and the fourth lead-out connector 550 is connected to the fourth lead-out connector (550). Rotate in accordance with the vertical movement of the vertical 550 pull puller 570 configured in the main automatic switching device 200 is characterized in that it comprises a pull-out ring 560 to pull out the main automatic switching device 200 Interlock device for bypass power switch. The method of claim 2 or 6, the withdrawal limiting part 600 is connected to the first bypass power connection portion 431 and converts the vertical movement of the first bypass power connection portion 431 to the horizontal linear motion Withdrawal limit cover part for determining the exposure of the hook portion 510 which can be hooked by the pull-out handle 800, the operation is restricted by the first draw-out connection portion 610 and the first draw-out connection portion 610 in operation And 620.
The withdrawal restriction cover part 620 is hooked to the withdrawal restriction part 621 which is caught by the first withdrawal restriction connection part 610 and the withdrawal driving part 500 which is caught by the withdrawal handle 800. Hook portion cover 622 to prevent the front exposure, and the hook portion cover 622 of both sides are connected to both ends and rotated about the center point to enable horizontal linear movement in the opposite direction to each other by the force acting on one side When there is no force applied to the rotary link unit 623 and the rotary link unit 623 by applying the elastic force to the rotary link unit 623, the hook part cover 622 is returned to its position and the hook unit 510 is again. It is configured to include a return means 624 to prevent the front of the, withdrawal restriction lock portion 621 is integrally configured to the hook portion cover 622 of one side, the user applies an external force To apply force to horizontally move the hook portion 622 Comprising: a swibu (621a),
The withdrawal restriction lock part 621 is formed with a groove to which the first withdrawal restriction connection part 610 is fitted, and the first bypass power connection part 431 moving according to the power switching state of the main automatic switching device 200. The first withdrawal limit connecting portion 610 is linearly inserted by the insertion, and when the main automatic switching device 200 is not connected to any power source, the first withdrawal limit connecting portion 610 is withdrawal limit locking portion 621 Separated from the user, the user pushes the drawer lock 621 to move the hook portion cover 622 to expose the hook portion 510 of the drawer driving part 500 to the outside to use the drawer handle 800 to draw out the outlet. Interlock device of the bypass power switching device, characterized in that the structure is configured to draw the main automatic switching device 200 by operating the eastern part (500).

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