CN103117514A - Circuit breaker mechanical switch-on and switch-off operating mechanism for high-voltage switch cabinet - Google Patents
Circuit breaker mechanical switch-on and switch-off operating mechanism for high-voltage switch cabinet Download PDFInfo
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- CN103117514A CN103117514A CN2013100260841A CN201310026084A CN103117514A CN 103117514 A CN103117514 A CN 103117514A CN 2013100260841 A CN2013100260841 A CN 2013100260841A CN 201310026084 A CN201310026084 A CN 201310026084A CN 103117514 A CN103117514 A CN 103117514A
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Abstract
Provided is a circuit breaker mechanical switch-on and switch-off operating mechanism for a high-voltage switch cabinet. A spring press-button assembly and a transmission assembly are installed on a door sheet of a circuit breaker chamber. The spring press-button assembly comprises two press-buttons, two press-button covers, two reset pressure springs and two ejector pins. The transmission assembly comprises a rotary support, a handle and two transmission rods. The rotary support can be installed on the door sheet of the circuit breaker chamber in a horizontally rotating mode through a vertical rotating shaft. A reset torsion spring exerting torsion on the rotary support is also installed on the vertical rotating shaft. The handle extends out of the door sheet of the circuit breaker chamber. The two transmission rods are installed on the rotary support in an axially moving mode. A reset tension spring exerting tension on the two transmission rods is also installed on the rotary support. Whether the circuit breaker is located on a test position or on a working position, mechanical switch-on and switch-off operations can be carried out on the circuit breaker. In addition, the door sheet of the circuit breaker chamber does not need to be opened, and therefore safety of operators is greatly improved, and the requirement for five-prevention locking is satisfied.
Description
Technical field
The invention belongs to the technical field of high-tension switch cabinet, be specifically related to a kind of high-tension switch cabinet breaker mechanical opening/closing operation mechanism.
Background technology
The circuit breaker of high-tension switch cabinet is provided with service position and test position.When circuit breaker is positioned at test position, circuit breaker is near the breaker chamber door-plate; When circuit breaker is positioned at service position, circuit breaker retreats and away from the breaker chamber door-plate.Existing high-tension switch cabinet, when needs carry out mechanical button deciliter to circuit breaker, no matter circuit breaker, in test position or service position, all needs to open the breaker chamber door-plate and operated, with danger; Particularly when circuit breaker during in service position, system busbar is charged, operating personnel's personal safety is threatened larger, and this has very large conflict with the anti-requirement of high-tension switch cabinet five.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and a kind of high-tension switch cabinet breaker mechanical opening/closing operation mechanism is provided, no matter it is when circuit breaker is positioned at test position or service position, can implement machinery minute closing operation to circuit breaker, and without opening the breaker chamber door-plate.
Its purpose can realize by following scheme: a kind of high-tension switch cabinet breaker mechanical opening/closing operation mechanism, comprise breaker chamber, and be movably installed with circuit breaker in breaker chamber, circuit breaker can move forward and backward between service position and test position; Breaker chamber is provided with the breaker chamber door-plate; Circuit breaker is provided with opening button, switch knob; It is characterized in that: spring button assembly and transmission component are installed on the breaker chamber door-plate; The spring button assembly comprises two buttons, two button overcoats, two reseting pressuring springs, two thimbles, wherein two button overcoats are fixed on the breaker chamber door-plate, each button and a corresponding back-moving spring are arranged in a corresponding button overcoat, each button and a corresponding thimble are fixed together, expose in breaker chamber door-plate outside on the surface of two buttons, and each root back-moving spring applies pressure forward to corresponding button;
Transmission component comprises swinging mounting, handle handle, two transmission bar strips, swinging mounting and handle handle are fixed together, the handle handle extends to breaker chamber door-plate outside, two transmission bar strips can axially movably be arranged on swinging mounting, the axial length of transmission bar strip equals the service position of circuit breaker and the fore-and-aft distance between test position, and the reset tension spring that two drive link bars is applied to pulling force also is installed on swinging mounting;
Swinging mounting utilizes a vertical rotating shaft to be arranged on the breaker chamber door-plate with horizontally rotating, vertically in rotating shaft, the reduction torsion spring that swinging mounting is applied to torsion also is being installed; When swinging mounting is in the normal state position under the twisting force of reduction torsion spring, the transmission bar strip axially in the normality position parallel with the circuit breaker door-plate; Be fixed with the first jam plate on the breaker chamber door-plate, the first jam plate is provided with the first lockhole, and the first lockhole is supporting movable latch; Be provided with the second lockhole on handle, the torsion that overcomes reduction torsion spring when swinging mounting is when vertical rotating shaft turns to abnormal position, and the first lockhole is aimed at the second lockhole, the transmission bar strip on swinging mounting axially in the abnormal position vertical with the circuit breaker door-plate;
When circuit breaker when test position and swinging mounting are in the normal state position, the opening button of the back-end aligned circuit breaker of first thimble wherein, the switch knob of the back-end aligned circuit breaker of second thimble;
When circuit breaker in service position and swinging mounting during in abnormal position, the front end of first transmission bar strip is aimed at the rear end of first thimble, the opening button of the back-end aligned circuit breaker of first transmission bar strip, the front end of second transmission bar strip is aimed at the rear end of second thimble, the switch knob of the back-end aligned circuit breaker of second transmission bar strip.
In present specification, so-called vertically, i.e. fore-and-aft direction, also perpendicular to the direction of breaker chamber door-plate face.Wherein, in the process that circuit breaker is moved to test position by service position, its direction of motion is " forward "; Otherwise, in the process that circuit breaker is moved to service position by test position, its direction of motion is " backward ".So-called " parallel with the circuit breaker door-plate ", refer to with circuit breaker door-plate place plane parallel.
The present invention has following advantage and effect:
No matter when circuit breaker is positioned at test position or service position, can implement mechanical breaking-closing operating to circuit breaker, and all without opening the breaker chamber door-plate, thereby greatly improved operating personnel's fail safe, meet the requirement of five-defence block.
The accompanying drawing explanation
Fig. 1 view during in test position that is the specific embodiment of the invention at circuit breaker.
Fig. 2 is the view of the specific embodiment of the invention when circuit breaker carries out breaking-closing operating in service position.
The perspective view that Fig. 3 is swinging mounting.
The perspective view that Fig. 4 is the transmission bar strip.
The main TV structure schematic diagram that Fig. 5 is transmission bar strip shown in Fig. 4.
Fig. 6 control principle schematic top plan view during in test position that is the specific embodiment of the invention at circuit breaker.
Fig. 7 is spring button assembly in Fig. 6 and the main TV structure schematic diagram of transmission component.
Fig. 8 be in Fig. 7 the handle handle when the normality position and the movable latch matching relationship schematic diagram of breaker chamber door-plate.
Fig. 9 is Fig. 6 medi-spring button assembly and transmission component perspective view.
Figure 10 is the perspective view that Fig. 6 medi-spring button assembly and transmission component are expressed from another angle.
Figure 11 is the perspective view that Fig. 6 medi-spring button assembly and transmission component are expressed from the 3rd angle.
To be the specific embodiment of the invention carry out the control principle schematic top plan view of breaking-closing operating during in service position to Figure 12 at circuit breaker.
Figure 13 is the partial structurtes schematic diagram that structure shown in Figure 12 is dismantled after the handle handle.
Figure 14 is spring button assembly in Figure 12 and the side-looking structural representation of transmission component.
Figure 15 is Figure 12 medi-spring button assembly and transmission component perspective view.
Figure 16 is the perspective view that Figure 12 medi-spring button assembly and transmission component are expressed from another angle.
Figure 17 be in Figure 12 the handle handle when abnormal position and the movable latch matching relationship schematic diagram of breaker chamber door-plate.
Figure 18 is that circuit breaker is in service position and the view of swinging mounting while being in the normal state position.
Embodiment
Shown in Fig. 1, Fig. 2, this high-tension switch cabinet comprises breaker chamber 3 with the breaker mechanical opening/closing operation mechanism, and breaker chamber 3 is provided with breaker chamber door-plate 6; Can be movably installed with actively circuit breaker 4 in front and back in breaker chamber 3, be that circuit breaker 4 can be promoted and be moved forward and backward between service position and test position by screw mechanism 42, Fig. 1 means that circuit breaker 4 is in test position, Fig. 2 means that circuit breaker 4 is in service position, circuit breaker in test position is relatively near breaker chamber door-plate 6, distant from breaker chamber door-plate 6 in the circuit breaker of service position; Circuit breaker 4 is provided with upper and lower two buttons 41, and opening button, switch knob, be respectively used to control breaker open operation and combined floodgate; Spring button assembly and transmission component are installed on breaker chamber door-plate 6; Shown in Fig. 6, Fig. 7, Fig. 9, Figure 10, the spring button assembly comprises two buttons 11, two button overcoats 12, two reseting pressuring springs 13, two thimbles 141,142, wherein two button overcoats 12 are fixed on breaker chamber door-plate 6, each button 11 and a corresponding back-moving spring 13 are arranged in a corresponding button overcoat 12, each button 11 and a corresponding thimble are fixed together, expose in breaker chamber door-plate 6 outsides on the surface of two buttons 11, and each root reseting pressuring spring 13 applies pressure forward to corresponding button 11.Shown in Fig. 6, Fig. 7, Fig. 9, Figure 10, transmission component comprises swinging mounting 21, handle handle 22, upper and lower two transmission bar strips 23, and swinging mounting 21 is fixedly connected with handle handle 22, and handle handle 22 reaches breaker chamber door-plate 6 outsides.
Shown in Fig. 3, swinging mounting 21 comprises main panel 210 and upper and lower two flangings 211 that are connected as a single entity, and upper and lower two flangings 211 offer respectively slotted hole 28.Two transmission bar strips 23 are symmetrical arranged up and down, and the control structure of two transmission bar strips 23 also is symmetrical arranged up and down.Shown in Fig. 4, Fig. 5, every transmission bar strip 23 comprise principal piece 230 in the middle of being positioned at, with principal piece front end front end rigion 231 connected vertically, with principal piece rear end rear end section 232 connected vertically, be fixed with the protruding grain 234 in rear end on rear end section 232.The effect of transmission bar strip 23 is transmissions between thimble and cut-off push, it be exactly axially that the length of principal piece 230 is to, i.e. EF bearing of trend in Fig. 5.
Shown in Fig. 6, Fig. 7, Fig. 9, Figure 10, the principal piece 230 of every transmission bar strip 23 sticks together with corresponding swinging mounting flanging 211, shown in Fig. 3, at swinging mounting flanging 211, offers the axial movable breach 281 of front end rigion 231 for the transmission bar strip.
Shown in Fig. 4, Fig. 5, two transmission bar strips 23 offer respectively circular hole 233, and shown in Fig. 6, Fig. 7, Fig. 9, Figure 10, the circular hole 233 of transmission bar strip 23 is equipped with bolt 27, and the diameter of bolt 27 is equivalent to the diameter of circular hole 233, and the axial of bolt is vertical; Every bolt 27 is also through the slotted hole 28 on swinging mounting.
Shown in Fig. 3, Fig. 6, Fig. 7, Fig. 9, Figure 10, whole swinging mounting 21 utilizes a vertical rotating shaft 24 to be arranged on breaker chamber door-plate 6 with horizontally rotating, and wherein vertically upper and lower two axis holes 214 of swinging mounting 21 are passed in rotating shaft 24.Vertically in rotating shaft, the reduction torsion spring 25 that swinging mounting 21 is applied to torsion also is being installed, swinging mounting 21 can rotate between normality position and abnormal position; When swinging mounting 21, when vertical rotating shaft 24 is rotated, two transmission bar strips 23 are in company with rotating, and the movable end away from vertically rotating shaft on swinging mounting is fixed with shockproof picture blob of viscose 5.Shown in Fig. 6, Fig. 7, Fig. 9, Figure 10, Figure 11, when swinging mounting 21 is in the normal state position under the twisting force of reduction torsion spring 25, the axial of transmission bar strip 23 is the normality position of transmission bar strip in the ，Gai position, position parallel with circuit breaker door-plate 6.Shown in Fig. 7, Fig. 8, Figure 13, be fixedly welded with the first jam plate 61, the first jam plates and be provided with that the first lockhole 62, the first lockholes are supporting a movable latch 63 on breaker chamber door-plate 6, Fig. 6, Fig. 7, Fig. 8, shown in Fig. 9, be provided with the second lockhole 221 on handle 22, when swinging mounting overcomes the torsion of reduction torsion spring when vertical rotating shaft turns to abnormal position, transmission bar strip 23 on swinging mounting axially in the abnormal position vertical with the circuit breaker door-plate, now the handle handle is also in abnormal position, the first lockhole 62 is aimed at up and down with the second lockhole 221, as shown in figure 17, as long as movable latch 63 is inserted to the first lockhole 62 and the second lockhole 221 simultaneously, just can handle handle 22 is temporarily fixing with the relative position of breaker chamber door-plate 6, be that whole swinging mounting 21 temporarily is locked in to abnormal position together with transmission bar strip 23.
Shown in Fig. 1, Fig. 6, Fig. 7, Fig. 9, Figure 10, Figure 11, when circuit breaker 4 when test position and swinging mounting are in the normal state position, the opening button of the back-end aligned circuit breaker 4 of first thimble 141 wherein, the switch knob of the back-end aligned circuit breaker 4 of second thimble 142, the stroke of two buttons 11 is 12mm, is equivalent to the stroke distances of circuit-breaker switching on-off button.
Shown in Fig. 2, Figure 12, Figure 14, Figure 15, Figure 16, when circuit breaker in service position and swinging mounting during in abnormal position, above the front end rigion 231 of a transmission bar strip 23 aim at the rear end of first thimble 141, above the protruding grain 234 in the rear end of a transmission bar strip 23 opening button of aiming at circuit breakers, below the front end rigion 231 of a transmission bar strip 23 aim at the rear end of second thimble 142, below the protruding grain 234 in rear end of a transmission bar strip 23 aim at the switch knob of circuit breakers 4.
The occupation mode of above-described embodiment is as follows:
One, under normal state, circuit breaker 4 is in service position, nor need to carry out to circuit breaker the operation of divide-shut brake, now, swinging mounting 21 abuts against on door-plate 6 under the effect of reduction torsion spring 25, as shown in figure 18, swinging mounting 21 and two transmission bar strips 23 are in the state parallel with door-plate, be Fig. 7, Fig. 9, Figure 10, Figure 11, swinging mounting normality position shown in Figure 18, swinging mounting 21 can not have influence on circuit breaker 4 advance and retreat, the path that circuit breaker 4 can advance is as shown in arrow a in Figure 18, circuit breaker 4 can not have influence on swinging mounting 21 and rotate, the rotary path of swinging mounting 21 is as shown in curved arrow b in Figure 18,
Two, when circuit breaker 4 advances to test position from service position, swinging mounting 21 remains on the state parallel with door-plate under the effect of reduction torsion spring 25, remain on the normality position of swinging mounting 21 motionless, as Fig. 1, Fig. 6, Fig. 7, Fig. 9, Figure 10, shown in Figure 11, under this kind of state, the opening button of the back-end aligned circuit breaker 4 of first thimble 141, the switch knob of the back-end aligned circuit breaker of second thimble 142, if need to implement divide-shut brake to circuit breaker 4, can be directly by the spring button assembly to circuit-breaker switching on-off: press the button backward 11, make first thimble 141 of button or second thimble 142 immediate roof opening button or the switch knob to circuit breaker, unclamp rear button 11, under the effect of reseting pressuring spring 13, first thimble 141 or second thimble 142 reset forward automatically.When circuit breaker 4, during in test position, owing to being subject to stopping of circuit breaker 4, swinging mounting 21 can not rotate;
Three,, when circuit breaker retreats into service position, if do not need circuit breaker is carried out to divide-shut brake, make swinging mounting 21 remain on the state parallel with door-plate under the effect of reduction torsion spring 25.Otherwise, if need to carry out divide-shut brake to the circuit breaker of service position, can carry out divide-shut brake to circuit breaker by spring button assembly and coordinating of transmission component, process is as follows: handle handle 22 levels are turned over to 90
o(as shown in arrow b in Figure 18), handle handle 22 drives swinging mounting 21 and rotates 90
o, swinging mounting 21 drives two transmission bar strips 23 and turns to lengthwise position (the i.e. state vertical with door-plate, the abnormal position that this position is swinging mounting 21), as Fig. 2, Figure 12, Figure 14, Figure 15, shown in Figure 16, and movable latch 63 is inserted to the first lockhole 62 and the second lockhole 221 simultaneously, just can handle handle 22 is temporarily fixing with the relative position of breaker chamber door-plate 6, the abnormal position that this position is handle handle 22, while then pressing wherein a certain button 11, the thimble of button 11 drives corresponding transmission bar strip 23 lengthwise movements, above the rear end 234 of the rear end 234 of a transmission bar strip or a following transmission bar strip drive opening button or the switch knob lengthwise movement of corresponding circuit breaker, realization deciliter.After release button 11, under the effect of pulling force forward of reset tension spring 29, above a transmission bar strip 23 or a following transmission bar strip 23 automatically reset forward.
Extract the second lockhole 221 when movable latch 63, just make handle handle 22 and swinging mounting 21 return to rotating state, swinging mounting 21 will be under the effect of reduction torsion spring 25 and is abutted against on door-plate 6, returns to the normality position.When resetting, shockproof picture blob of viscose 5 can cushion the impact of swinging mounting end of door plate, as shown in Fig. 7, Fig. 9, Figure 10, Figure 11; Now, return to state shown in Figure 18.
By said process, just realize respectively the divide-shut brake outdoors in test position and service position to circuit breaker.
The stroke of above-mentioned two buttons 11 also can change 10mm into, or 14mm, as long as be equivalent to the stroke distances of circuit-breaker switching on-off button.
Claims (2)
1. a high-tension switch cabinet breaker mechanical opening/closing operation mechanism, comprise breaker chamber, is movably installed with circuit breaker in breaker chamber, and circuit breaker can move forward and backward between service position and test position; Breaker chamber is provided with the breaker chamber door-plate; Circuit breaker is provided with opening button, switch knob; It is characterized in that: spring button assembly and transmission component are installed on the breaker chamber door-plate; The spring button assembly comprises two buttons, two button overcoats, two reseting pressuring springs, two thimbles, wherein two button overcoats are fixed on the breaker chamber door-plate, each button and a corresponding back-moving spring are arranged in a corresponding button overcoat, each button and a corresponding thimble are fixed together, expose in breaker chamber door-plate outside on the surface of two buttons, and each root back-moving spring applies pressure forward to corresponding button;
Transmission component comprises swinging mounting, handle handle, two transmission bar strips, swinging mounting and handle handle are fixed together, the handle handle extends to breaker chamber door-plate outside, two transmission bar strips can axially movably be arranged on swinging mounting, the axial length of transmission bar strip equals the service position of circuit breaker and the fore-and-aft distance between test position, and the reset tension spring that two drive link bars is applied to pulling force also is installed on swinging mounting;
Swinging mounting utilizes a vertical rotating shaft to be arranged on the breaker chamber door-plate with horizontally rotating, vertically in rotating shaft, the reduction torsion spring that swinging mounting is applied to torsion also is being installed, when swinging mounting is in the normal state position under the twisting force of reduction torsion spring, the transmission bar strip axially in the normality position parallel with the circuit breaker door-plate; Be fixed with the first jam plate on the breaker chamber door-plate, the first jam plate is provided with the first lockhole, and the first lockhole is supporting movable latch; Be provided with the second lockhole on handle, the torsion that overcomes reduction torsion spring when swinging mounting is when vertical rotating shaft turns to abnormal position, and the first lockhole is aimed at the second lockhole, the transmission bar strip on swinging mounting axially in the abnormal position vertical with the circuit breaker door-plate;
When circuit breaker in the test position position and swinging mounting while being in the normal state position, the opening button of the back-end aligned circuit breaker of first thimble wherein, the switch knob of the back-end aligned circuit breaker of second thimble;
When circuit breaker in the position, service position and swinging mounting during in abnormal position, the front end of first transmission bar strip is aimed at the rear end of first thimble, the opening button of the back-end aligned circuit breaker of first transmission bar strip, the front end of second transmission bar strip is aimed at the rear end of second thimble, the switch knob of the back-end aligned circuit breaker of second transmission bar strip.
2. breaker mechanical deciliter operating mechanism for high-tension switch cabinet according to claim 1, it is characterized in that: the stroke of two buttons of spring button assembly is 10-14mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100260841A CN103117514A (en) | 2013-01-24 | 2013-01-24 | Circuit breaker mechanical switch-on and switch-off operating mechanism for high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100260841A CN103117514A (en) | 2013-01-24 | 2013-01-24 | Circuit breaker mechanical switch-on and switch-off operating mechanism for high-voltage switch cabinet |
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| CN103117514A true CN103117514A (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100260841A Pending CN103117514A (en) | 2013-01-24 | 2013-01-24 | Circuit breaker mechanical switch-on and switch-off operating mechanism for high-voltage switch cabinet |
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| CN (1) | CN103117514A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487681A (en) * | 2013-09-11 | 2014-01-01 | 苏州市龙源电力科技股份有限公司 | Alternating current voltage-adjusting resistor cart |
| CN106374362A (en) * | 2016-11-15 | 2017-02-01 | 辽宁电能发展股份有限公司 | Outdoor operation low voltage feed-out circuit breaker integrated power distribution box |
| CN107732692A (en) * | 2017-11-27 | 2018-02-23 | 国家电网公司 | High-tension switch cabinet safety device and its application method |
| US10157721B2 (en) | 2016-04-07 | 2018-12-18 | DEA Incorporated | Electrical breaker rear side actuator |
| CN112490032A (en) * | 2020-12-24 | 2021-03-12 | 南昌洋深电子科技有限公司 | Indirect contact type electric switch |
| CN116852350A (en) * | 2023-06-09 | 2023-10-10 | 中煤陕西榆林能源化工有限公司 | Control method and device for switching operation, storage medium and electronic equipment |
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| JPH05159687A (en) * | 1991-12-03 | 1993-06-25 | Toshiba Corp | Electric operating device for circuit breaker |
| CN201927899U (en) * | 2010-12-15 | 2011-08-10 | 扬州北辰电气设备有限公司 | Switch on/off device for circuit breaker of high-voltage switch cabinet |
| CN202004360U (en) * | 2011-04-11 | 2011-10-05 | 浙江临高电气实业有限公司 | Manual emergency switch-on and switch-off device for central-positioned switch cabinet |
| CN102306911A (en) * | 2011-08-18 | 2012-01-04 | 伊顿电力设备有限公司 | Emergency opening/closing operation mechanism of high-voltage switch equipment |
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| JPH05159687A (en) * | 1991-12-03 | 1993-06-25 | Toshiba Corp | Electric operating device for circuit breaker |
| CN201927899U (en) * | 2010-12-15 | 2011-08-10 | 扬州北辰电气设备有限公司 | Switch on/off device for circuit breaker of high-voltage switch cabinet |
| CN202004360U (en) * | 2011-04-11 | 2011-10-05 | 浙江临高电气实业有限公司 | Manual emergency switch-on and switch-off device for central-positioned switch cabinet |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487681A (en) * | 2013-09-11 | 2014-01-01 | 苏州市龙源电力科技股份有限公司 | Alternating current voltage-adjusting resistor cart |
| US10157721B2 (en) | 2016-04-07 | 2018-12-18 | DEA Incorporated | Electrical breaker rear side actuator |
| CN106374362A (en) * | 2016-11-15 | 2017-02-01 | 辽宁电能发展股份有限公司 | Outdoor operation low voltage feed-out circuit breaker integrated power distribution box |
| CN107732692A (en) * | 2017-11-27 | 2018-02-23 | 国家电网公司 | High-tension switch cabinet safety device and its application method |
| CN107732692B (en) * | 2017-11-27 | 2023-08-11 | 国家电网公司 | Safety device of high-voltage switch cabinet and use method thereof |
| CN112490032A (en) * | 2020-12-24 | 2021-03-12 | 南昌洋深电子科技有限公司 | Indirect contact type electric switch |
| CN112490032B (en) * | 2020-12-24 | 2024-03-15 | 张清 | Indirect contact type electric switch |
| CN116852350A (en) * | 2023-06-09 | 2023-10-10 | 中煤陕西榆林能源化工有限公司 | Control method and device for switching operation, storage medium and electronic equipment |
| CN116852350B (en) * | 2023-06-09 | 2024-02-13 | 中煤陕西榆林能源化工有限公司 | Control method and control device for switching operation |
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Application publication date: 20130522 |