CN115527787A - Opening and closing double-confirmation structure of three-phase linkage GIS switch - Google Patents
Opening and closing double-confirmation structure of three-phase linkage GIS switch Download PDFInfo
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- CN115527787A CN115527787A CN202211294576.4A CN202211294576A CN115527787A CN 115527787 A CN115527787 A CN 115527787A CN 202211294576 A CN202211294576 A CN 202211294576A CN 115527787 A CN115527787 A CN 115527787A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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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
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Abstract
The invention provides a switching-on and switching-off double confirmation structure of a three-phase linkage GIS switch, wherein a switching-on and switching-off actuating mechanism of a GIS isolating switch comprises a driving unit and three gear transmission units connected with the driving unit, the driving unit is arranged in a mechanism phase, the gear transmission units are arranged in a gear box corresponding to three phases and are connected with moving contacts corresponding to the phases, and the switching-on and switching-off double confirmation structure comprises a first confirmation structure and two second confirmation structures; the first confirmation structure is arranged in the mechanism phase, connected with an output shaft of a driving motor in the driving unit and used for detecting the rotation angle of the output shaft of the driving motor and judging the opening and closing operation of the GIS disconnecting switch; and the three second confirmation structures are respectively arranged in a middle phase gear box and two side phase gear boxes, are connected with a middle transmission shaft entering the gear box and a phase body output shaft leaving the gear box in the gear transmission unit, and are used for detecting the rotation angle of the phase body output shaft to judge the opening and closing operation of the GIS disconnecting switch.
Description
Technical Field
The invention belongs to the technical field of high-voltage electrical equipment, and particularly relates to a switching-on and switching-off double confirmation structure of a three-phase linkage GIS switch.
Background
At present, a 252kV GIS three-station isolation grounding switch three-phase linkage structure is that a mechanism converts an electric signal into mechanical energy, and the mechanical energy is transmitted to a three-station isolation grounding switch body through a mechanism output shaft to drive opening and closing actions. The electric signal of the opening and closing position of the mechanism is fed back through the auxiliary switch in the mechanism, and the requirement that the position change of the isolating switch should be indicated by at least two different principles or non-homologous sources by one-key sequential control double confirmation cannot be met.
At present, when a GIS three-phase linkage isolating switch structure is switched on and switched off, secondary signals are fed back to a background through an auxiliary switch in the mechanism, but the switching-on and switching-off state of a non-mechanism phase cannot be judged, the switching-on and switching-off state needs to be on site, the switching-on and switching-off state is visually observed, labor cost is increased, efficiency is low, the two judging modes belong to the same source, the correct switching-on and switching-off position of a switch body cannot be accurately represented, and the condition of misjudgment exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a switching-on and switching-off double confirmation structure of a three-phase linkage GIS switch, which is based on a GIS isolating switch three-phase linkage structure, wherein a second confirmation structure led out from a phase body output shaft is respectively added in a gear box of a middle phase and a side phase, a switching-off and switching-on position monitoring signal is fed back to serve as a second criterion, and a non-homologous switching-on and switching-off position indication is formed with a first criterion-a mechanism phase auxiliary switch contact signal fed back by a first confirmation structure, so that a double confirmation structure of the switching-on and switching-off positions of the isolating switch is formed. Only when all the criterion instructions are consistent with the switching-on and switching-off operation instructions, the device can be confirmed to be operated in place, the accuracy of the switching-on and switching-off positions of the isolating switch is ensured, the misjudgment of the positions of the isolating switch is avoided, and the operation efficiency and the accuracy are improved while the requirement of one-key sequence control is met; and the double-confirmation structure has the advantages of simple structure, wide application range, low manufacturing and maintenance cost, strong anti-interference capability and high reliability and accuracy.
In order to achieve the purpose, the invention provides the following technical scheme:
a double-confirmation structure for opening and closing of a three-phase linkage GIS switch is characterized in that an opening and closing actuating mechanism of the GIS isolating switch comprises a driving unit and three gear transmission units connected with the driving unit, wherein the driving unit is arranged in a mechanism phase, the gear transmission units are arranged in a gear box corresponding to three phases and connected with moving contacts corresponding to the phases, and the double-confirmation structure comprises a first confirmation structure and two second confirmation structures;
the first confirmation structure is arranged in the mechanism phase, connected with an output shaft of a driving motor in the driving unit and used for detecting the rotation angle of the output shaft of the driving motor and judging the opening and closing operation of the GIS disconnecting switch;
and the three second confirmation structures are respectively arranged in a middle phase gear box and two side phase gear boxes, are connected with a middle transmission shaft entering the gear box and a phase body output shaft leaving the gear box in the gear transmission unit, and are used for detecting the rotation angle of the phase body output shaft to judge the opening and closing operation of the GIS disconnecting switch.
Further, the second confirmation structure comprises a triangular bevel gear transmission mechanism, three ends of the bevel gear transmission mechanism are respectively connected with the intermediate transmission shaft, the phase body output shaft and the detection rotating shaft, a plurality of travel switches are arranged around the periphery of the detection rotating shaft, stacked cam trigger pieces are fixedly arranged on the bevel gear transmission mechanism, and the stacked cam trigger pieces are in contact triggering with different travel switches to judge the opening and closing operation of the GIS isolating switch.
Further, the bevel gear transmission mechanism comprises a first bevel gear, a second bevel gear and a third bevel gear which are coaxially arranged on the middle transmission shaft, the first bevel gear and the second bevel gear are oppositely arranged and have the same structure and are meshed with a fourth bevel gear,
the first bevel gear is fixedly arranged on the middle transmission shaft, the second bevel gear and the third bevel gear are fixedly connected together and rotatably arranged on the middle transmission shaft, the fourth bevel gear is fixedly arranged on the output shaft of the phase body,
the outer diameter of the third bevel gear is larger than that of the first bevel gear and the second bevel gear, the third bevel gear is meshed with a fifth bevel gear which is fixedly arranged on the detection rotating shaft,
the driving motor drives the middle transmission shaft to rotate, the middle transmission shaft sequentially drives the first bevel gear, the fourth bevel gear of the phase body output shaft and the second bevel gear to rotate together with the third bevel gear and the fifth bevel gear, so that the detection rotating shaft is driven to rotate, the laminated cam trigger is driven to rotate, and contact triggering with different travel switches is achieved.
Furthermore, the second bevel gear and the third bevel gear are fixedly connected together through a connecting key, and the second bevel gear and the third bevel gear are rotatably arranged on the intermediate transmission shaft through a needle bearing.
Further, the overlapped cam trigger part comprises three cam parts which are coaxially arranged at intervals, and are sequentially marked as a first cam part, a second cam part and a third cam part from top to bottom, the cam parts are arranged in a staggered manner and respectively comprise a circular ring-shaped body,
for the first type cam piece and the second type cam piece, an arc-shaped bulge is arranged on part of the edge of the annular body,
for the third type of cam member, a square protrusion is arranged on the edge of the annular body.
Furthermore, the travel switches are provided with four travel switches, two travel switches form a group, two groups of travel switches are arranged at intervals, the first group of travel switches respectively correspond to the first type of cam pieces and the third type of cam pieces, and the second group of travel switches respectively correspond to the first type of cam pieces and the second type of cam pieces.
Furthermore, the inner ring of the circular ring-shaped body is hexagonal and is matched with the outer diameter of the detection rotating shaft.
Compared with the prior art, the invention has the beneficial effects that:
1. the first confirmation structure selects an output shaft of a driving motor in a mechanism phase as a judgment basis, and judges the opening and closing operation of the GIS disconnecting switch according to the rotation angle of the output shaft; the three second confirmation structures directly indicate the execution positions of the tail ends of the three-phase body opening and closing execution mechanisms respectively to ensure the accuracy of the opening and closing positions of the isolating switch;
meanwhile, the first confirmation structure indicates the transmission starting end of the three-phase linkage GIS isolating switch opening and closing instruction execution mechanism, namely the output shaft of the driving motor, the second confirmation structure indicates the transmission tail end of the three-phase linkage GIS isolating switch opening and closing instruction execution mechanism, namely the output shaft of the phase body, and is closer to the moving contact of each phase, the three confirmation structures belong to heterogeneous indications, and only when all the criterion indications are consistent with the opening and closing operation instructions, the equipment can be confirmed to be operated in place, so that the operation efficiency and the operation accuracy are improved.
2. The second confirmation structure adopts a triangular bevel gear transmission mechanism, skillfully connects the intermediate transmission shaft, the phase body output shaft and the detection rotating shaft together, and realizes confirmation of the opening and closing operation of the GIS disconnecting switch through the matching of the overlapped cam trigger piece arranged on the detection rotating shaft and the travel switch.
Drawings
FIG. 1 is a schematic structural diagram of a 252kV GIS isolation grounding switch double confirmation three-phase linkage of the invention;
FIG. 2 is a schematic cross-sectional view of a first confirmation structure of the present invention;
FIG. 3 is a first schematic structural diagram of a second acknowledgement structure according to the present invention;
FIG. 4 is a first schematic structural diagram of a second acknowledgement structure according to the present invention;
FIG. 5 is a schematic cross-sectional view of a second confirmation construction of the present invention;
FIG. 6 is a first schematic structural view of a stacked cam trigger of the present invention;
FIG. 7 is a second structural view of the trigger member of the stacked cam of the present invention;
in the figure: the device comprises a screw rod 1, a gear transmission structure 2, a driving motor 3, a lead screw nut 4, a sector cam 5, an auxiliary switch 6, an intermediate transmission shaft 7, a phase body output shaft 8, a detection rotating shaft 9, a travel switch 10, a laminated cam trigger 11, a cam 1101, an arc-shaped bulge 1102, a square bulge 1103, a first bevel gear 12, a second bevel gear 13, a third bevel gear 14, a fourth bevel gear 15, a needle bearing 16, a fifth bevel gear 17, a mechanism phase 18 and a gear box 19.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described in the invention with reference to the attached drawings, and the description of the embodiments is used for assisting the understanding of the invention, but the invention is not limited by the embodiments.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. When two elements are "fixedly connected" or "pivotally connected," the two elements may be directly connected or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The fixed connection or the fixed connection mode can be screw connection or welding or riveting or inserting connection or connection through a third component. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a switching-on and switching-off double confirmation structure of a three-phase linkage GIS switch, as shown in figure 1, a switching-on and switching-off actuating mechanism of a GIS isolating switch comprises a driving unit and three gear transmission units connected with the driving unit, wherein the driving unit is arranged in a mechanism phase 18, the gear transmission units are arranged in a gear box 19 corresponding to three phases and connected with moving contacts corresponding to the phases, and the switching-on and switching-off double confirmation structure comprises a first confirmation structure and two second confirmation structures; the first confirmation structure is arranged in the mechanism phase 18, is connected with an output shaft of a driving motor in the driving unit and is used for detecting the rotation angle of the output shaft of the driving motor and judging the opening and closing operation of the GIS disconnecting switch; the second confirmation structure is provided with three, which are respectively installed in a gear box 19 of an intermediate phase and two side phases, connected with an intermediate transmission shaft entering the gear box 19 and a phase body output shaft leaving the gear 18 in the gear transmission unit, and used for detecting the rotation angle of the phase body output shaft and judging the opening and closing operation of the GIS disconnecting switch. The method comprises the following specific steps:
as shown in fig. 2, the first confirmation structure includes parallel lead screws 1, one end of each lead screw 1 is connected to an output shaft of a driving motor 3 of a switching mechanism of an isolating switch/a grounding switch through a gear transmission structure 2, a lead screw nut 4 is further disposed thereon, a sector cam 5 is disposed between the two lead screws 1, two auxiliary switches 6 are disposed on each side of each lead screw, and the two auxiliary switches 6 are disposed at intervals, so that the driving motor drives the lead screws to rotate through gear transmission, thereby driving the lead screw nuts to move up and down along the lead screws, and then the lead screw nuts push one side of the sector cams to rotate to the other side, and contact with the corresponding auxiliary switches to trigger, thereby outputting corresponding switching signals, which are determination signals of the first switching.
As shown in fig. 3 to 5, the second confirmation structure includes a triangular bevel gear transmission mechanism, three ends of which are respectively connected to the intermediate transmission shaft 7, the phase body output shaft 8 and the detection rotation shaft 9, a plurality of travel switches 10 are disposed around the detection rotation shaft 9, a laminated cam trigger 11 is fixedly disposed thereon, and the laminated cam trigger 11 is in contact with different travel switches for triggering, so as to determine the switching operation of the GIS disconnector. The driving motor drives the middle transmission shaft to rotate, then drives the phase body output shaft and the detection rotating shaft to rotate in sequence, and further drives the overlapped cam trigger to rotate so as to be contacted with different travel switches, and therefore the opening and closing operation of the GIS isolating switch is judged.
Specifically, the bevel gear transmission mechanism comprises a first bevel gear 12, a second bevel gear 13 and a third bevel gear 14 which are coaxially arranged on an intermediate transmission shaft, the first bevel gear 12 and the second bevel gear 13 are oppositely arranged and have the same structure, and are respectively meshed with a fourth bevel gear 15, the first bevel gear 12 is fixedly arranged on the intermediate transmission shaft, the first bevel gear 12 and the third bevel gear 14 rotate synchronously, the second bevel gear 13 and the third bevel gear 14 are fixedly connected together and rotatably arranged on the intermediate transmission shaft 7 through screws or connecting keys, the second bevel gear 13 and the third bevel gear 14 are rotatably connected to the intermediate transmission shaft 7 through a needle bearing 16, the fourth bevel gear 15 is fixedly arranged on a phase body output shaft 8, meanwhile, the third bevel gear 14 has an outer diameter larger than that of the first bevel gear 12 and the second bevel gear 13 and is meshed with a fifth bevel gear 17, the fifth bevel gear 17 is fixedly arranged on a detection rotating shaft 9, so that the intermediate transmission shaft rotates under the driving of a driving motor, the first bevel gear is sequentially driven to rotate, the fourth bevel gear of the phase body output shaft meshed with the fourth bevel gear 12 and the third bevel gear 17, the third bevel gear is driven by a rotating cam, and then the rotating of the bevel gear and the rotating shaft, and the rotating of the third bevel gear is driven by a rotating switch, so as to rotate, and further to realize the detection of the rotating shaft, and the rotating of the rotating belt, and the rotating of the rotating shaft, and the rotating of the rotating cam, and the rotating belt, thereby realizing the rotating belt.
In order to match the on-off operation confirmation of the disconnecting switch and the grounding switch in the GIS switch, as shown in fig. 6-7, the overlapped cam trigger 11 includes three cam members 1101 coaxially arranged at intervals, which are sequentially marked as a first cam member, a second cam member and a third cam member from top to bottom, and are arranged in a staggered manner, and each of the cam members includes a circular body, the inner ring of the circular cup body can be hexagonal and is matched with the outer diameter of the detection rotating shaft, so that the fixed connection is convenient to realize,
for the first type cam piece and the second type cam piece, an arc-shaped protrusion 1102 is arranged at the partial edge of the annular body, the arc length of the arc-shaped protrusion can be determined according to the opening and closing stroke of the isolating switch or the grounding switch, and for the third type cam piece, a square protrusion 1103 is arranged at the edge of the annular body;
the travel switch 12 is provided with four travel switches, two travel switches are in a group, two groups of travel switches are arranged at intervals, the distance between the two groups of travel switches can be determined according to the opening and closing travel of the isolating switch or the grounding switch, and the two groups of travel switches respectively correspond to the isolating switch and the grounding switch, if the first group of travel switches are used for detecting the isolating switch and respectively correspond to the first type of cam pieces and the third type of cam pieces, and the second group of travel switches are used for detecting the grounding switch and respectively correspond to the first type of cam pieces and the second type of cam pieces.
The working principle of the second confirmation structure in the intermediate phase gear box and the side phase gear box is the same, taking the intermediate phase gear box as an example, the feedback process of the opening and closing position monitoring signals is as follows:
when the isolating switch is switched on, the driving motor rotates forwards, the output shaft of the mechanism phase drives the intermediate transmission shaft to rotate forwards, kinetic energy generated by the driving motor is transmitted to the gear transmission mechanism in the gear box, the output shaft of the phase body connected with the driving motor is driven to rotate forwards, and the intermediate phase body is driven to perform switching-on action; meanwhile, the forward rotation of the intermediate transmission shaft sequentially drives the first bevel gear to rotate in the forward direction, the fourth bevel gear of the output shaft of the body meshed with the first bevel gear rotates in the forward direction, the second bevel gear meshed with the fourth bevel gear rotates in the forward direction together with the third bevel gear, and the third bevel gear drives the fifth bevel gear to rotate in the forward direction, so that the detection rotating shaft is driven to rotate in the forward direction, the arc-shaped bulge of the first cam part on the laminated cam trigger part is driven to be in contact with one travel switch of the first set of travel switches for triggering, and a closing signal is output;
similarly, when the brake is opened, the driving motor rotates reversely, the output shaft of the mechanism phase drives the intermediate transmission shaft to rotate reversely, the kinetic energy generated by the driving motor is transmitted to the gear transmission mechanism in the gear box, the output shaft of the phase body connected with the driving motor is driven to rotate reversely, and the intermediate phase body is driven to execute the brake opening action; meanwhile, the forward rotation of the intermediate transmission shaft sequentially drives the first bevel gear to rotate reversely, the fourth bevel gear meshed with the first bevel gear rotates reversely, the second bevel gear meshed with the fourth bevel gear rotates reversely together with the third bevel gear, and the third bevel gear drives the fifth bevel gear to rotate reversely, so that the detection rotating shaft is driven to rotate reversely, the square bulge of the third cam part on the laminated cam trigger part is driven to be in contact with the other travel switch of the first set of travel switches for triggering, and a brake separating signal is output;
the judgment and output process of the opening and closing signals of the grounding switch is similar to that of the isolating switch, and only the first cam piece, the second cam piece and the second group of travel switches on the overlapped cam trigger piece are matched with each other to be in contact triggering, so that corresponding opening and closing signals are output;
the second confirmation structure is arranged in the gear box and directly takes the rotation angle of the output shaft of the phase body as a judgment basis to output a judgment signal of second opening and closing; the first confirmation structure is arranged in the mechanism phase, directly takes the rotation angle of the output shaft of the driving motor as a judgment basis and outputs a judgment signal of first opening and closing; the two confirmation structures belong to different source judgment, only when the feedback signals of the first confirmation structure and the second confirmation structure are consistent with the opening and closing operation instructions, the three-phase opening and closing action positions are correct, the accurate execution of the opening and closing action of the isolating switch is ensured, and compared with the method that the opening and closing positions of the isolating switch are judged only according to an auxiliary switch or a position indicator, the double confirmation structure improves the accuracy and avoids the misjudgment of the opening and closing of the isolating switch.
The above-described embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and changes can be made by those skilled in the art without inventive work within the scope of the appended claims.
Claims (7)
1. The utility model provides a structure is confirmed to divide-shut brake pair of three-phase linkage GIS switch, GIS isolator's divide-shut brake actuating mechanism includes drive unit and the three gear drive unit who is connected with it, drive unit sets up in the mechanism phase, gear drive unit sets up in the gear box that corresponds the three-phase, is connected with the moving contact that corresponds the looks, its characterized in that: comprises a first confirmation structure and two second confirmation structures;
the first confirmation structure is arranged in the mechanism phase, connected with an output shaft of a driving motor in the driving unit and used for detecting the rotation angle of the output shaft of the driving motor and judging the opening and closing operation of the GIS disconnecting switch;
and the three second confirmation structures are respectively arranged in a middle phase gear box and two side phase gear boxes, are connected with a middle transmission shaft entering the gear box and a phase body output shaft leaving the gear box in the gear transmission unit, and are used for detecting the rotation angle of the phase body output shaft to judge the opening and closing operation of the GIS disconnecting switch.
2. The opening and closing double confirmation structure of the three-phase linkage GIS switch according to claim 1, characterized in that: the second confirmation structure comprises a triangular bevel gear transmission mechanism, three ends of the bevel gear transmission mechanism are respectively connected with the intermediate transmission shaft, the phase body output shaft and the detection rotating shaft, a plurality of travel switches are arranged around the periphery of the detection rotating shaft, stacked cam trigger pieces are fixedly arranged on the bevel gear transmission mechanism, and the stacked cam trigger pieces are in contact triggering with different travel switches to judge the opening and closing operation of the GIS isolating switch.
3. The on-off double confirmation structure of the three-phase linkage GIS switch according to claim 2, characterized in that: the bevel gear transmission mechanism comprises a first bevel gear, a second bevel gear and a third bevel gear which are coaxially arranged on the middle transmission shaft, the first bevel gear and the second bevel gear are oppositely arranged and have the same structure, and are both meshed with a fourth bevel gear,
the first bevel gear is fixedly arranged on the middle transmission shaft, the second bevel gear and the third bevel gear are fixedly connected together and rotatably arranged on the middle transmission shaft, the fourth bevel gear is fixedly arranged on the output shaft of the phase body,
the outer diameter of the third bevel gear is larger than that of the first bevel gear and the second bevel gear, the third bevel gear is meshed with a fifth bevel gear which is fixedly arranged on the detection rotating shaft,
the driving motor drives the middle transmission shaft to rotate, the middle transmission shaft sequentially drives the first bevel gear, the fourth bevel gear of the phase body output shaft and the second bevel gear to rotate together with the third bevel gear and the fifth bevel gear, so that the detection rotating shaft is driven to rotate, the laminated cam trigger is driven to rotate, and contact triggering with different travel switches is achieved.
4. The opening and closing double confirmation structure of the three-phase linkage GIS switch according to claim 3, characterized in that: the second bevel gear and the third bevel gear are fixedly connected together through a connecting key, and the second bevel gear and the third bevel gear are rotatably arranged on the intermediate transmission shaft through a needle bearing.
5. The on-off double confirmation structure of the three-phase linkage GIS switch according to claim 2, characterized in that: the overlapped cam trigger part comprises three cam parts which are coaxially arranged at intervals, and are sequentially marked as a first cam part, a second cam part and a third cam part from top to bottom, the first cam part, the second cam part and the third cam part are arranged in a staggered manner and respectively comprise a circular ring-shaped body,
for the first type cam piece and the second type cam piece, an arc-shaped bulge is arranged on part of the edge of the annular body,
for the third type of cam member, a square protrusion is arranged on the edge of the annular body.
6. The opening and closing double confirmation structure of the three-phase linkage GIS switch according to claim 5, characterized in that: the travel switches are provided with four travel switches, the two travel switches are in a group, the two groups of travel switches are arranged at intervals, the first group of travel switches respectively correspond to the first type of cam pieces and the third type of cam pieces, and the second group of travel switches respectively correspond to the first type of cam pieces and the second type of cam pieces.
7. The opening and closing double confirmation structure of the three-phase linkage GIS switch according to claim 5, characterized in that: the inner ring of the circular ring-shaped body is hexagonal and is matched with the outer diameter of the detection rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211294576.4A CN115527787A (en) | 2022-10-21 | 2022-10-21 | Opening and closing double-confirmation structure of three-phase linkage GIS switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211294576.4A CN115527787A (en) | 2022-10-21 | 2022-10-21 | Opening and closing double-confirmation structure of three-phase linkage GIS switch |
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| Publication Number | Publication Date |
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| CN115527787A true CN115527787A (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211294576.4A Pending CN115527787A (en) | 2022-10-21 | 2022-10-21 | Opening and closing double-confirmation structure of three-phase linkage GIS switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313579A (en) * | 2023-05-26 | 2023-06-23 | 沈阳华德海泰电器有限公司 | Travel switch driving device for gas-insulated metal-enclosed switchgear |
| CN117275993A (en) * | 2023-09-26 | 2023-12-22 | 西安西电高压开关操动机构有限责任公司 | Commutation isolating switch operating mechanism and operating method thereof |
| WO2024178950A1 (en) * | 2023-02-27 | 2024-09-06 | 云南电网有限责任公司玉溪供电局 | Double-confirmation device for programmed operation position of disconnect switch |
-
2022
- 2022-10-21 CN CN202211294576.4A patent/CN115527787A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024178950A1 (en) * | 2023-02-27 | 2024-09-06 | 云南电网有限责任公司玉溪供电局 | Double-confirmation device for programmed operation position of disconnect switch |
| CN116313579A (en) * | 2023-05-26 | 2023-06-23 | 沈阳华德海泰电器有限公司 | Travel switch driving device for gas-insulated metal-enclosed switchgear |
| CN116313579B (en) * | 2023-05-26 | 2023-08-04 | 沈阳华德海泰电器有限公司 | Travel switch driving device for gas-insulated metal-enclosed switchgear |
| CN117275993A (en) * | 2023-09-26 | 2023-12-22 | 西安西电高压开关操动机构有限责任公司 | Commutation isolating switch operating mechanism and operating method thereof |
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