WO2019021351A1 - 開閉器のインターロック装置および開閉システム - Google Patents
開閉器のインターロック装置および開閉システム Download PDFInfo
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- WO2019021351A1 WO2019021351A1 PCT/JP2017/026731 JP2017026731W WO2019021351A1 WO 2019021351 A1 WO2019021351 A1 WO 2019021351A1 JP 2017026731 W JP2017026731 W JP 2017026731W WO 2019021351 A1 WO2019021351 A1 WO 2019021351A1
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- WIPO (PCT)
- Prior art keywords
- switch
- shaft
- interlock device
- rotation
- unit
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
Definitions
- the present invention relates to an interlock device and a switching system of a switch that prevent a plurality of switches that open and close an electrical path from being simultaneously closed.
- Patent Document 1 discloses an interlock device that regulates the closed state of another switch by pulling a wire when one switch is closed.
- the interlock device operates in response to the rotation of a shaft that changes the open / close state of the electric path in the switch.
- the rotation direction of the shaft is applied to a plurality of switches in the same direction, when there are a plurality of switches having different rotation directions of the shaft, two types of interlock devices are required. is there.
- the present invention has been made in view of the above, and it is an object of the present invention to obtain a switch interlock device capable of outputting the closed state of the switch without depending on the rotation direction of the switch shaft. Do.
- an interlock device for a switch includes a first interlocking mechanism with a rotation of a shaft provided to a first switch for opening and closing a first electric path.
- Closed state blocking unit for blocking the closed state of the first switch when the closed state of the second switch for opening and closing the second electric path is input.
- the open / close state output unit is a transmission unit that moves one end that outputs the open / close state of the first switch along with the movement of the other end, and a drive that moves the other end of the transmission unit based on the rotation of the shaft.
- the drive unit is configured such that the rotation direction of the shaft when the first switch is in the closed state from the open state is the first direction and the second direction that is the opposite direction to the first direction.
- the other end of the transmission unit is movable.
- FIG. 2 is a diagram showing an internal configuration in an open state of the switch according to Embodiment 1;
- FIG. 2 is a diagram showing an internal configuration in a closed state of the switch according to the first embodiment
- Sectional drawing which shows the state in case the 1st switch of the 1st interlock device concerning Embodiment 2 is closed.
- Sectional drawing which shows the state in case the 1st switch of the 1st interlock apparatus concerning Embodiment 2 is an open state.
- Sectional drawing which shows the state in case the 1st switch of the 1st interlock device concerning Embodiment 2 is closed.
- FIG. 1 is a front view of an opening and closing system according to a first embodiment
- FIG. 2 is a side view of the opening and closing system according to the first embodiment.
- the switching system 1 according to the first embodiment is connected to a plurality of grids (not shown) including the first grid and the second grid, and switches the grids of the grids.
- the positive direction of Z-axis is upward
- the negative direction of Z-axis is downward
- the positive direction of X-axis is rightward
- the negative direction of X-axis is left direction
- the positive direction of Y-axis Is the front direction
- the Y axis negative direction is the rear direction.
- the switching system 1 includes a first switch 2 a that opens and closes an electric path of a first system, a second switch 2 b that opens and closes an electric path of a second system, and The first interlock device 3a mounted on the side surface of the first switch 2a, and the second interlock device 3b mounted on the side surface of the second switch 2b.
- the first switch 2a and the second switch 2b are circuit breakers that shut off the current in the atmosphere, and are also called air circuit breakers.
- the first switch 2 a and the second switch 2 b may be any switches that open and close an electric path, and may be switches other than the air circuit breaker.
- the first interlock device 3a and the second interlock device 3b are mechanical interlock devices as described later.
- the first interlock device 3a and the second interlock device 3b are connected by the first wire cable 4a and the second wire cable 4b which are connection members.
- the first wire cable 4a transmits the open / close state of the first switch 2a to the second interlock device 3b
- the second wire cable 4b transmits the open / close state of the second switch 2b to the first It transmits to the interlock device 3a.
- the first wire cable 4a and the second wire cable 4b are wire cables that transmit the open / close state of the first switch 2a and the second switch 2b by the movement of the wire inside the first wire cable 4a and the second wire cable 4b. Transmission of the open / close state of the switch 2a and the second switch 2b may be performed by a member other than the wire cable.
- first switch 2a and the second switch 2b are described as the switch 2 without distinction, and the first interlock device 3a and the second interlock device 3b are not distinguished. It may be described as the interlock device 3 and the first wire cable 4a and the second wire cable 4b may be described as the wire cable 4 without distinction.
- FIGS. 3 and 4 are views showing the internal configuration of the switch 2
- FIG. 5 is a front view of the switch 2 in the open state to which the interlock device 3 is attached.
- FIG. 3 shows the case where the switch 2 is in the open state
- FIG. 4 shows the case where the switch 2 is in the closed state.
- the first interlock device 3 a is shown as the interlock device 3
- the first switch 2 a is shown as the switch 2.
- the “closed state” of the switch 2 is a state in which the electric path is closed and current flows through the switch 2, and is also called a closed state or an on state. Further, the “open state” of the switch 2 is a state in which the electric path is open and the current of the electric path is cut off by the switch 2, and is also called an open state or an off state.
- the switch 2 is provided with an open / close mechanism unit 11 having a main shaft 10 and interlocks with the rotation of the main shaft 10 in the open / close mechanism unit 11 to open / close the electric path.
- the description of the rotation direction of the main shaft 10 shows the rotation direction of the main shaft 10 when the switch 2 is viewed from the left as shown in FIGS. 3 and 4.
- the opening / closing mechanism 11 is configured to rotate the main shaft 10 by an electromagnetic mechanism including a solenoid, but may be configured to rotate the main shaft 10 by a spring-type mechanism or other configurations.
- an electromagnetic mechanism including a solenoid
- a spring-type mechanism or other configurations.
- the opening-and-closing mechanism for opening and closing an electrical path is known, detailed description of the opening-and-closing mechanism part 11 is omitted.
- the switch 2 has a first link 12 whose one end 121 is pivotally supported by the main shaft 10 and one end 131 is rotatably connected to the other end 122 of the first link 12, and the other end 132
- the mover 14 has a movable contact 14 a at one end 141.
- the switch 2 is connected to a power source side conductor (not shown) and includes a power source side fixed conductor 15 having a fixed contact 15a, a load side fixed conductor 16 connected to a load side conductor (not shown), and one end portion 171
- the flexible conductor 17 is connected to the other end 142 of the mover 14 and the other end 172 is connected to the load-side fixed conductor 16, and a contact pressure that biases the mover 14 clockwise about the link pin 13a.
- the switch 2 In the state shown in FIG. 3, the switch 2 is in the open state, and the movable contact 14 a is not in contact with the fixed contact 15 a. That is, in the state shown in FIG. 3, the current of the electric path is cut off by the switch 2.
- the switch 2 shifts from the open state to the closed state from the state shown in FIG. 3, the main shaft 10 rotates counterclockwise as shown in FIG. 4 by receiving a force from the open / close mechanism 11.
- first link 12 and the second link 13 are driven by the counterclockwise rotation of the main shaft 10, and the first link 12 and the second link 13 are linearly arranged. It will be By driving the first link 12 and the second link 13, the mover 14 moves toward the fixed contact 15a, and the movable contact 14a formed on the mover 14 contacts the fixed contact 15a. When the movable contact 14a contacts the fixed contact 15a, the contact pressure spring 18 applies a contact pressure between the movable contact 14a and the fixed contact 15a. Thereby, the conduction state between the power supply side conductor and the load side conductor described above is maintained, and current flows in the electric path including the power supply side conductor and the load side conductor.
- the switch 2 rotatably holds the interlock plate 73 of the interlock device 3, and extends from the inside of the case 6 of the switch 2 to the outside of the case 6. 21 and a trip plate 22 pivotally supported on the shaft 21 and rotated with the interlock plate 73, and driven by the trip plate 22 to trip out the latch (not shown) of the open / close mechanism 11 and trip the switch 2 And 23.
- the main shaft 10 rotates clockwise, and the switch 2 is shown in FIG. 3. Transition to the state. As shown in FIG. 5, the main shaft 10 extends from the inside of the case 6 of the switch 2 to the outside of the case 6.
- FIG. 6 is a cross-sectional view taken along the line VI-VI shown in FIG. 5
- FIG. 7 is a cross-sectional view taken along the line VII-VII shown in FIG.
- the first interlock device 3a inputs the open / close state output unit 31 that outputs the open / close state of the first switch 2a and the closed state of the second switch 2b, It has a closed state blocking unit 32 for blocking the closed state of the first switch 2a, and a case unit 33 covering the open / closed state output unit 31 and the closed state blocking unit 32.
- the open / close state output unit 31 has a transmission unit 40 whose one end 45 is connected to the wire 5a of the first wire cable 4a and whose one end 45 moves with the movement of the other end 46, and the first switch 2a. And a drive unit 50 for moving the other end 46 of the transmission unit 40 based on the rotation of the main shaft 10 in the above.
- the transmission unit 40 has a wire support 41 whose one end 411 is connected to the wire 5a, an interlocking plate 42 whose one end 421 is rotatably connected to the other end 412 of the wire support 41 by a connecting pin 43, and a case A shaft 44 fixed to the shaft 33 and pivotally supporting the middle portion of the interlocking plate 42;
- One end 411 of the wire support 41 is one end 45 of the transmission unit 40, and the other end 422 of the interlocking plate 42 is the other end 46 of the transmission 40.
- the transmission part 40 is not limited to the structure shown in FIG.
- the transmission unit 40 may be configured to directly connect the wire 5 a to one end of the interlocking plate 42 without providing the wire support 41.
- the transmission unit 40 may be configured to include a plurality of plates including the interlocking plate 42.
- the transmission unit 40 is not limited to the configuration illustrated in FIG. 6, and may be configured to move the one end 45 in conjunction with the movement of the other end 46.
- the driving unit 50 is driven by the main shaft 10, and rotates with the main shaft 10 as the main shaft 10 rotates.
- the driving plate 51 rotates when the rotation direction of the main shaft 10 is counterclockwise.
- the first operating portion 52 which is pushed by 51 to move the other end 46 of the transmission portion 40 and the other end of the transmission portion 40 is pushed by the drive plate 51 when the rotation direction of the main shaft 10 is clockwise.
- a second operation unit 53 for moving the unit 46.
- the state of the drive plate 51 shown in FIG. 7 may be indicated by a two-dot chain line.
- the first actuation portion 52 is an actuation pin 61 fixed to the other end 46 of the transmission portion 40 and pushed by the drive plate 51 when the rotation direction of the main shaft 10 is counterclockwise. With the movement of the actuating pin 61, the other end 422 of the interlocking plate 42 rotates counterclockwise around the shaft 44 and moves, and one end 421 of the interlocking plate 42 rotates around the shaft 44 counterclockwise. To move. Thereby, the transition of the first switch 2 a to the closed state is transmitted to the wire 5 a via the drive unit 50 and the transmission unit 40.
- the second operating portion 53 has an operating pin 62 pressed by the drive plate 51 when the rotation direction of the main shaft 10 is clockwise, a shaft 63 fixed to the case portion 33, and an operating pin 62 at one end 641. And an interlocking plate 64 whose mid-portion is pivotally supported by a shaft 63.
- the interlocking plate 64 is formed in a U-shape, and the other end 642 of the interlocking plate 64 is formed on the other end 46 of the transmission portion 40 when the interlocking plate 64 rotates counterclockwise about the shaft 63. Contact.
- the closed state blocking unit 32 includes a wire support 71 connected to the wire 5b of the second wire cable 4b, a trip pin 72 fixed to the wire support 71 and extending toward the first switch 2a, and the first And an interlock plate 73 attached to the shaft 21 of the switch 2a.
- the trip pin 72 moves and pushes the interlock plate 73
- the shaft 21 of the first switch 2a rotates and the first switch 2a trips and opens.
- the state of the interlock plate 73 shown in FIG. 7 is indicated by a two-dot chain line.
- FIG. 8 is a cross-sectional view showing the state of the first interlock device 3a when the first switch 2a is in the closed state
- FIG. 9 is a cross-sectional view of the first interlock device 3a and the second interlock. It is an explanatory view of interlocking operation with lock device 3b.
- FIG. 10 is a front view of the second switch 2b to which the second interlock device 3b in the state shown in FIG. 9 is attached.
- the 1st interlock apparatus 3a and the 2nd interlock apparatus 3b are arrange
- the wire support 41 When the wire support 41 is pulled down, the wire 5a fixed to the wire support 41 is also pulled down. As shown in FIG. 9, when the wire 5a is pulled down in the first interlock device 3a, the wire 5a connected to the wire support 71 is pulled up in the second interlock device 3b. Thereby, in the second interlock device 3b, the wire support 71 to which the trip pin 72 is attached is pulled up, and as shown in FIG. 10, the tip of the interlock plate 73 is pushed up by the trip pin 72.
- the interlock plate 73 rotates clockwise about the shaft 21.
- the trip plate 22 of the second switch 2b connected to the interlock plate 73 by the shaft 21 is also rotated clockwise.
- the rotation of the trip plate 22 causes the trip bar 23 shown in FIG. 7 to rotate, and the rotation of the trip bar 23 causes the latch of the open / close mechanism 11 to be pulled out.
- the closing operation for closing the second switch 2b can not be performed, it is possible to maintain the second switch 2b in the open state when the first switch 2a is in the closed state. it can.
- the switching system 1 when one of the switches 2 is closed between the two switches 2, the other switch 2 can not be closed.
- FIG. 11 is a front view of an open / close system including the switch 2 shown in FIG. 2, the two switches whose main shaft 10 is reversely rotated, and the two interlock devices 3a and 3b
- FIG. 13 is a front view showing a state in which the first interlock device 3a is attached to the switch shown in FIG. 13.
- FIG. 13 is a view for explaining an internal configuration in the open state of the switch shown in FIG.
- the first interlock device 3a is attached to the first switch 7a
- the second interlock device 3b is attached to the second switch 7b.
- the first interlock device 3a and the second interlock device 3b are connected by a first wire cable 4a and a second wire cable 4b.
- the first switch 7a and the second switch 7b have the same configuration, and the first switch 7a and the second switch 7b may hereinafter be described as the switch 7 without distinction. .
- FIG. 14 is a cross-sectional view taken along the line XIV-XIV of FIG. 12, and FIG. 15 is attached to the first interlock device 3a and the second switch 7b attached to the first switch 7a. It is explanatory drawing of interlocking
- the first interlock device 3a and the second interlock device 3b are disposed along the Y-axis direction.
- the rotation of the drive plate 51 causes the drive plate 51 to push the actuating pin 62 forward, so that the actuating pin 62 moves counterclockwise around the shaft 63 and the interlocking plate 64 to which the actuating pin 62 is attached is It rotates counterclockwise around the shaft 63.
- the interlocking plate 64 rotates counterclockwise, the other end 642 of the interlocking plate 64 pushes up the other end 422 of the interlocking plate 42.
- the one end 421 of the interlocking plate 42 rotates counterclockwise around the shaft 44, and the wire support 41 connected to the one end 421 of the interlocking plate 42 is pulled down.
- the wire support 41 When the wire support 41 is pulled down, the wire 5a fixed to the wire support 41 is also pulled down. As shown in FIG. 15, when the wire 5a is pulled down in the first interlock device 3a, the wire 5a connected to the wire support 71 is pulled up in the second interlock device 3b. As a result, in the second interlock device 3b, the wire support 71 to which the trip pin 72 is attached is pulled up, and the tip of the interlock plate 73 is pushed up by the trip pin 72.
- the interlock plate 73 rotates clockwise about the shaft 21. Due to the rotation of the interlock plate 73, the trip plate 22 of the second switch 7b connected to the interlock plate 73 by the shaft 21 also rotates in the clockwise direction.
- the rotation of the trip plate 22 causes the trip bar 23 to rotate, and the rotation of the trip bar 23 causes the latch of the open / close mechanism 11 to be pulled out.
- the closing operation for closing the second switch 7b can not be performed, it is possible to maintain the second switch 7b in the open state when the first switch 7a is in the closed state. it can.
- the switching system 1A when one of the switches 7 is turned on between the two switches 7, the other switch 7 can not be turned on.
- the interlock device 3 according to the embodiment is mounted on any one of the switch 2 and the switch 7 in which the rotation direction of the main shaft 10 is different, and when one switch is in the closed state, the other switch is used. It can be kept open.
- the interlocking plate 64 is formed in a U-shape, and can push the other end 422 of the interlocking plate 42 in the direction along the extension portion 65 of the interlocking plate 64 as shown in FIG. Therefore, dispersion of the force applied to the other end 422 of the interlocking plate 42 can be suppressed, and the interlocking plate 64 can be pushed efficiently.
- the shape of the interlocking plate 64 is not limited to the U shape. 16 is a cross-sectional view of the first interlock device 3a having the interlocking plate 64 having a shape different from that of the interlocking plate 64 shown in FIG. 6, and FIG. 17 shows the first opening and closing from the state shown in FIG. It is sectional drawing of the interlock apparatus which shows the state when the container 7a transfers to a closed state.
- the interlocking plate 64 shown in FIG. 16 is formed in an L-shape, the actuating pin 62 is fixed to one end 641, and a middle portion which is a bent portion is pivotally supported by the shaft 63. As shown in FIG. 17, the interlocking plate 64 rotates counterclockwise around the shaft 63 by the rotation of the drive plate 51 as in the case of the interlocking plate 64 shown in FIG. 14, and the other end of the interlocking plate 64 The portion 642 pushes up the other end 422 of the interlocking plate 42.
- the position of the shaft 63 can be made higher than that of the interlocking plate 64 shown in FIG. Can reduce the size of
- the interlocking plate 64 may be U-shaped or L-shaped, and may have a shape other than U-shaped and L-shaped.
- the interlocking plate 64 may be triangular. That is, the interlocking plate 64 may be configured so as to push the other end 422 of the interlocking plate 42 by the movement of the actuating pin 62 caused by the clockwise rotation of the drive plate 51.
- the other end 422 of the interlocking plate 42 is pushed up, but the second actuating portion 53 is interlocked with the clockwise rotation of the drive plate 51 so that the interlocking plate 42 is Any configuration may be used as long as the other end 422 is moved.
- the configuration is not limited to the configuration in which the other end 46 of the transmission unit 40 is pushed by the second operation unit 53. That is, in the interlock device 3, when the rotation direction of the main shaft 10 is clockwise, the other end 46 of the transmission unit 40 is pushed by the first actuating portion 52, and the rotation direction of the main shaft 10 is counterclockwise. In this case, the other end 46 of the transmission unit 40 may be pushed by the second operation unit 53.
- the first interlock device 3a operates in conjunction with the rotation of the main shaft 10 provided in the first switch 2a for opening and closing the first electric path.
- the closed state of the open / close state output unit 31 for outputting the open / close state of the switch 2a and the closed state of the second switch 2b for opening / closing the second electric path is input, the closed state for blocking the closed state of the first switch 2a And a state blocking unit 32.
- the open / close state output unit 31 transmits the open / close state of the first switch 2a at one end 45 along with the movement of the other end 46, and the main shaft 10 of the first switch 2a.
- a drive unit 50 for moving the other end 46 of the transmission unit 40 based on the rotation.
- the rotation direction of the main shaft 10 when the first switch 2a is switched from the open state to the closed state is the first direction which is one of the clockwise direction and the counterclockwise direction.
- the second end 46 of the transmission unit 40 can be moved in the second direction.
- the drive unit 50 is driven by the main shaft 10, and is pressed by the drive plate 51, which rotates with the rotation of the main shaft 10, and the drive plate 51 when the rotation direction of the main shaft 10 is the first direction.
- First operating portion 52 for moving the other end 46 of the transmitting portion 40 and the other end 46 of the transmitting portion 40 by being pushed by the drive plate 51 when the rotation direction of the main shaft 10 is the second direction.
- the first operating portion 52 is fixed to the other end 46 of the transmission portion 40, and is an example of a first operating pin that is pushed by the drive plate 51 when the rotation direction of the main shaft 10 is the first direction.
- the second actuating portion 53 has an actuating pin 62, which is an example of a second actuating pin that is pushed by the drive plate 51 when the rotation direction of the main shaft 10 is the second direction, and an actuating pin 62 at one end 641.
- Is fixed and the middle part is pivotally supported by the shaft 63, and rotates with the shaft 63 as the actuating pin 62 moves, and the other end 642 pushes the other end 46 of the transmission part 40 and moves And an interlocking plate 64.
- the 2nd operation part 53 can be made simple composition, for example, the manufacturing cost of interlock device 3 can be held down.
- the interlocking plate 64 is formed in a U-shape.
- the other end 422 of the interlocking plate 42 can be pushed in the direction along the extension portion 65 of the interlocking plate 64. It is possible to suppress the dispersion of the force applied to the other end portion 422, and to press the interlocking plate 64 efficiently.
- the interlock device according to the second embodiment differs from the first embodiment in the configuration of the drive unit 50.
- components having the same functions as those in the first embodiment are given the same reference numerals, and descriptions thereof will be omitted, and points different from the interlock device 3 of the first embodiment will be mainly described.
- FIG. 18 is a front view of the first switch 2a in an open state in which the interlock device according to the second embodiment is attached to the side
- FIG. 19 is a cross section along line XIX-XIX shown in FIG.
- FIG. 20 is a cross-sectional view taken along the line XX-XX shown in FIG.
- an interlock device 3d (not shown) having the same configuration as the interlock device 3c according to the second embodiment is attached to the second switch 2b.
- the relationship between the interlock device 3c and the interlock device 3d is the same as that of the interlock device 3a and the interlock device 3b according to the first embodiment.
- the interlock device 3c receives the open / close state output unit 31A that outputs the open / close state of the first switch 2a and the closed state of the second switch 2b.
- the first switch 2a is provided with a closed state blocking unit 32 that blocks the closed state of the first switch 2a, and a case unit 33A that covers the open / closed state output unit 31A and the closed state blocking unit 32.
- the case section 33A is different in external shape from the case section 33 according to the first embodiment.
- the open / close state output unit 31A includes the transmission unit 40 and a drive unit 50A that moves the other end 46 of the transmission unit 40 based on the rotation of the main shaft 10 in the switch 2.
- the drive unit 50A is driven by the main shaft 10, and is fixed to the drive plate 51A rotating about the main shaft 10 as the main shaft 10 rotates and the other end 46 of the transmission unit 40, and the drive plate 51A rotated.
- an actuating pin 61 for moving the other end 46 of the transmission unit 40 when pressed.
- the drive plate 51A is formed in a fan shape, and has a circular arc portion 82 as a tip, and a base end is fixed to the main shaft 10. In order to make the description easy to understand, in FIG. 18 etc., the state of the drive plate 51A shown in FIG. 20 is indicated by a two-dot chain line.
- FIG. 21 is a cross-sectional view showing the state of the first interlock 3 c when the first switch 2 a is in the closed state.
- the main shaft 10 of the first switch 2a rotates counterclockwise. Therefore, the drive plate 51A attached to the main shaft 10 also rotates counterclockwise, and as shown in FIG. 21, the actuating pin 61 is pushed up by the rotating drive plate 51A.
- FIG. 22 is a cross-sectional view of the first interlock device 3c attached to the first switch 7a in the open state
- FIG. 23 is a first view of the first interlock device 7a in the closed state. It is sectional drawing which shows the state of the interlock apparatus 3c.
- the interlock device 3c is attached to the second switch 7b.
- the interlock device 3c attached to the first switch 7a differs in the attachment position of the drive plate 51A from the case where the interlock device 3c is attached to the first switch 2a. That is, when the drive plate 51A is attached to the first switch 2a, as shown in FIG. 19, the first position in which the arc portion 82 which is the tip of the main shaft 10 is directed backward. Attached to On the other hand, when the drive plate 51A is attached to the first switch 7a, as shown in FIG. 22, the drive plate 51A is attached at a second position where the arc portion 82 faces the front among the positions around the outer periphery of the main shaft 10. .
- the interlock device 3c is attached to the outer periphery of the main shaft 10 in the open state in the case of being attached to the first switch 2a and in the case of being attached to the first switch 7a.
- the position is different.
- the attachment position of the drive plate 51A to the main shaft 10 in the open state is also different.
- the mounting position of the drive plate 51A can also be referred to as a mounting angle around the outer periphery of the main shaft 10.
- the interlock device 3c is characterized in the shape of the drive plate 51A attached to the main shaft 10.
- the distance from the main shaft 10 at the operation pin 61 can be changed rapidly at the straight portions 81 and 83 of the drive plate 51A and can be made constant at the arc portion 82. 5a can be quickly reduced.
- the drive plate 51A pushes up the operation pin 61 regardless of the direction of rotation of the main shaft 10. Therefore, the closed state of the first switches 2a and 7a is transmitted to the second switches 2b and 7b without depending on the rotation direction of the main shaft 10, and the open states of the second switches 2b and 7b are maintained. Can.
- the drive plate 51A In the attachment of the drive plate 51A to the main shaft 10, for example, key grooves are provided at a plurality of different places in the circumferential direction of the main shaft 10, and the convex portion of the drive plate 51A is fitted in any of such key grooves. Thus, the mounting position of the drive plate 51A can be changed.
- the attachment of the drive plate 51A to the main shaft 10 can also be performed using other than the key groove.
- the shape of the drive plate 51A is not limited to the fan shape. 24 and 25 show other shapes of the drive plate 51A.
- the drive plate 51A shown in FIG. 24 has an elliptical shape, and the distance from the main shaft 10 to the actuating pin 61 becomes longer as the rotational position of the main shaft 10 approaches from the open position to the closed position. Thus, the actuating pin 61 can be pushed up by the rotation of the driving plate 51A.
- the drive plate 51A shown in FIG. 25 has a shape in which two fan-shaped portions 84 and 85 are integrated, and the arc portion 86 of one of the fan-shaped portions 84 faces the rear, The arc portion 87 faces forward.
- the drive plate 51A can push up the actuating pin 61 regardless of the direction of rotation of the main shaft 10.
- the drive plate 51A can push up the actuating pin 61 regardless of the direction of rotation of the main shaft 10 without changing the mounting position of the drive plate 51A to the main shaft 10.
- the transmitting unit 40 is not limited to the configuration shown in FIG. 19, and the other end 46 is moved by the actuating pin 61 and interlocked with the movement of the other end 46. It is sufficient that the unit 45 moves.
- the drive unit 50A of the interlock device 3c has a case where the rotation direction of the main shaft 10 is clockwise when the first switch 2a is closed from the open state.
- the other end 46 of the transmission unit 40 is movable in the counterclockwise direction.
- the drive unit 50A has a base end attached to the main shaft 10, and is fixed to the drive plate 51A rotating with the rotation of the main shaft 10 and the other end 46 of the transmission unit 40 and rotated. And an actuating pin 61 for moving the other end 46 of the transmission unit 40 when pressed.
- the drive plate 51A When the drive plate 51A is attached to the first position of the main shaft 10, the other end 46 of the transmission unit 40 is moved by the counterclockwise rotation of the main shaft 10, and the second position of the main shaft 10 When the main shaft 10 is attached to the main shaft 10, the other end 46 of the transmission unit 40 is moved by the clockwise rotation of the main shaft 10.
- the drive plate 51A can push up the operation pin 61 regardless of the direction of rotation of the main shaft 10.
- the distance from the main shaft 10 at the operation pin 61 can be changed rapidly at the straight portions 81 and 83 of the drive plate 51A and can be made constant at the arc portion 82. Therefore, the wire 5a can be pulled down quickly.
- the configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. Parts can be omitted or changed.
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
Description
図1は、実施の形態1にかかる開閉システムの正面図であり、図2は、実施の形態1にかかる開閉システムの側面図である。実施の形態1にかかる開閉システム1は、第1の系統および第2の系統を含む複数系統の不図示の電路に接続され、各系統の電路の開閉を行う。なお、以下においては、説明の便宜上、Z軸正方向を上方向とし、Z軸負方向を下方向とし、X軸正方向を右方向とし、X軸負方向を左方向とし、Y軸正方向を前方向とし、Y軸負方向を後方向とする。
実施の形態2にかかるインターロック装置は、駆動部50の構成が、実施の形態1と異なる。以下においては、実施の形態1と同様の機能を有する構成要素については同一符号を付して説明を省略し、実施の形態1のインターロック装置3と異なる点を中心に説明する。
Claims (7)
- 第1の電路を開閉する第1の開閉器に設けられたシャフトの回転に連動して前記第1の開閉器の開閉状態を出力する開閉状態出力部と、
第2の電路を開閉する第2の開閉器の閉状態を入力した場合に、前記第1の開閉器の閉状態を阻止する閉状態阻止部と、を備え、
前記開閉状態出力部は、
前記第1の開閉器の開閉状態を出力する一端部を他端部の移動に伴って移動させる伝達部と、
前記シャフトの前記回転に基づいて前記伝達部の前記他端部を移動させる駆動部と、を備え、
前記駆動部は、
前記第1の開閉器が開状態から閉状態になる場合の前記シャフトの回転方向が第1の方向である場合と前記第1の方向とは逆方向である第2の方向である場合とで前記伝達部の前記他端部を移動可能な構造を備える
ことを特徴とする開閉器のインターロック装置。 - 前記駆動部は、
前記シャフトに取り付けられ、前記シャフトの回転に伴って回転する駆動プレートと、
前記シャフトの前記回転の方向が前記第1の方向である場合に前記駆動プレートに押されて前記伝達部の前記他端部を移動させる第1の作動部と、
前記シャフトの前記回転の方向が前記第2の方向である場合に前記駆動プレートに押されて前記伝達部の前記他端部を移動させる第2の作動部と、を備える
ことを特徴とする請求項1に記載の開閉器のインターロック装置。 - 前記第1の作動部は、
前記伝達部の前記他端部に固定され、前記シャフトの前記回転の方向が前記第1の方向である場合に前記駆動プレートに押される第1の作動ピンを含み、
前記第2の作動部は、
前記シャフトの前記回転の方向が前記第2の方向である場合に前記駆動プレートに押される第2の作動ピンと、
一端部に前記第2の作動ピンが固定され、かつ、中途部が軸支されており、前記第2の作動ピンの移動に伴って前記中途部を中心として回転し、他端部が前記伝達部の前記他端部を押して移動させる連動プレートと、を備える
ことを特徴とする請求項2に記載の開閉器のインターロック装置。 - 前記連動プレートは、
U字状に形成される
ことを特徴とする請求項3に記載の開閉器のインターロック装置。 - 前記駆動部は、
前記シャフトに基端部が取り付けられ、前記シャフトの前記回転に伴って回転する駆動プレートと、
前記伝達部の前記他端部に固定され、回転した前記駆動プレートによって押された場合に前記伝達部の前記他端部を移動させる作動ピンと、を備え、
前記駆動プレートは、
前記シャフトの第1の位置に取り付けられた場合に前記シャフトの前記第1の方向への回転によって前記伝達部の前記他端部を移動させ、前記シャフトの第2の位置に取り付けられた場合に前記シャフトの前記第2の方向への回転によって前記伝達部の前記他端部を移動させる
ことを特徴とする請求項1に記載の開閉器のインターロック装置。 - 前記駆動プレートは、
扇形状に形成される
ことを特徴とする請求項5に記載の開閉器のインターロック装置。 - 請求項1から6のいずれか一つに記載の開閉器のインターロック装置である第1のインターロック装置と、
前記第1のインターロック装置に連結部材を介して連結される第2のインターロック装置と、
前記第1の開閉器と、
前記第2の開閉器と、を備える
ことを特徴とする開閉システム。
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JP2019532236A JP6707202B2 (ja) | 2017-07-24 | 2017-07-24 | 開閉器のインターロック装置および開閉システム |
KR1020197037573A KR102222142B1 (ko) | 2017-07-24 | 2017-07-24 | 개폐기의 인터락 장치 및 개폐 시스템 |
CN201780093295.3A CN110914946B (zh) | 2017-07-24 | 2017-07-24 | 开闭器的互锁装置及开闭系统 |
PCT/JP2017/026731 WO2019021351A1 (ja) | 2017-07-24 | 2017-07-24 | 開閉器のインターロック装置および開閉システム |
TW107104316A TWI662574B (zh) | 2017-07-24 | 2018-02-07 | 開關之互鎖裝置及開關系統 |
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CN204189692U (zh) * | 2014-09-28 | 2015-03-04 | 珠海许继电气有限公司 | 一种应用于开关设备的联锁装置 |
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JPH07193923A (ja) * | 1993-12-27 | 1995-07-28 | Mitsubishi Electric Corp | 開閉器のインターロック装置 |
JP2001135203A (ja) * | 1999-11-04 | 2001-05-18 | Terasaki Electric Co Ltd | 回路遮断器のインターロック装置 |
JP2005005093A (ja) * | 2003-06-11 | 2005-01-06 | Mitsubishi Electric Corp | 開閉器のインターロック装置 |
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KR102222142B1 (ko) | 2021-03-04 |
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JP6707202B2 (ja) | 2020-06-10 |
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