CN218040223U - PT cabinet with bus grounding function - Google Patents
PT cabinet with bus grounding function Download PDFInfo
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- CN218040223U CN218040223U CN202222342449.9U CN202222342449U CN218040223U CN 218040223 U CN218040223 U CN 218040223U CN 202222342449 U CN202222342449 U CN 202222342449U CN 218040223 U CN218040223 U CN 218040223U
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- cabinet
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- grounding
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Abstract
The utility model relates to a PT cabinet technical field aims at solving among the prior art when maintaining the maintenance to the equipment generating line, need be with bus-bar ground connection for avoiding the electric shock, but sets up generating line grounding cabinet alone, has occupation space big, problem with high costs, provides a PT cabinet with generating line ground connection function, including the gas tank, be equipped with main female row and once main ground connection row in the gas tank, once main ground connection row links to each other with the grounding net, main female arranging with once be equipped with generating line earthing switch between the main ground connection row, the gas tank outside is equipped with earthing switch operating device, earthing switch operating device with generating line earthing switch links to each other, is used for control bus-bar earthing switch's opening and shutting. The utility model discloses with generating line ground connection and generating line PT integrated in one aerify cabinet gas tank, when being convenient for between the cabinet generating line overhaul with maintain, the generating line carries out ground connection, ensures to maintain personnel's safety, need not to set generating line grounding cabinet alone simultaneously, practices thrift manufacturing cost and place occupation space.
Description
Technical Field
The utility model relates to a PT cabinet technical field particularly, relates to a PT cabinet with bus grounding function.
Background
At present, the gas insulated alternating current metal enclosed switchgear gradually replaces the air insulated switchgear on the market along with the increment of the market and the improvement of the scheme. When maintaining the maintenance to the equipment bus, after the inlet wire outage, there is residual voltage on the bus, in order to avoid the risk of electrocution, need effectively ground the bus, guarantee personal safety.
However, the existing PT cabinet does not have a bus grounding function, a bus grounding cabinet needs to be configured independently, the cost of the independently configured cabinet is increased, the bus grounding cannot be operated at a far end or electrically, and the safety risk exists due to manual near-end operation. Meanwhile, later maintenance and troubleshooting are not facilitated, arrangement in the cabinet is not attractive, and customer experience is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a PT cabinet with bus grounding function to when maintaining the maintenance to the equipment generating line among the solution prior art, for avoiding the electric shock, need with bus grounding, nevertheless set up the generating line grounding cabinet alone, there is the problem that occupation space is big, with high costs.
The utility model discloses an adopt following technical scheme to realize:
the utility model provides a PT cabinet with bus grounding function, includes the gas tank, be equipped with main female arranging and once main ground connection row in the gas tank, once main ground connection row links to each other with the grounding grid, main female arranging with once be equipped with bus grounding switch between the main ground connection row, the gas tank outside is equipped with earthing switch operating device, earthing switch operating device with bus grounding switch links to each other, is used for control bus grounding switch's opening and shutting.
The utility model discloses with generating line ground connection and generating line PT integrated in one aerify cabinet gas tank, when being convenient for between the cabinet generating line overhaul with maintain, the generating line carries out ground connection, ensures to maintain personnel's safety, need not to set generating line grounding cabinet alone simultaneously, practices thrift manufacturing cost and place occupation space. The bus grounding operation and other intervals of the system realize electrical interlocking, and the safety is improved.
As a preferred technical scheme:
the bus grounding switch comprises a movable knife, the movable knife is installed on a movable knife holder in the air box, the movable knife is rotatably connected to the movable knife holder, one end of the movable knife is connected with the main bus bar, and the other end of the movable knife is connected with or disconnected from the primary main grounding bar.
As a preferred technical scheme:
the movable knife is connected with the grounding switch operating mechanism through a transmission mechanism.
As a preferred technical scheme:
the transmission mechanism is a hexagonal insulation main shaft, a hexagonal hole is formed in the movable cutter, a round hole is formed in the movable cutter holder, the hexagonal insulation main shaft penetrates through the hexagonal hole and the round hole, the hexagonal insulation main shaft is matched with the hexagonal hole, and the movable cutter is driven to rotate relative to the movable cutter holder by the rotation of the hexagonal insulation main shaft.
As a preferred technical scheme:
the size of the round hole is larger than the sectional size of the hexagonal insulation main shaft, and the hexagonal insulation main shaft and the movable knife can rotate relative to the movable knife base.
As a preferable technical scheme:
the hexagonal insulation main shaft is connected with the grounding switch operating mechanism through a rotating arm, and the grounding switch operating mechanism controls the rotating arm to rotate so as to drive the hexagonal insulation main shaft to rotate.
As a preferable technical scheme:
and a dynamic seal is arranged between the hexagonal insulation main shaft and the air box.
As a preferable technical scheme:
the dynamic seal includes transmission switching shaft, the hexagonal insulation main shaft passes through transmission switching shaft with the rocking arm links to each other, the outside of transmission switching shaft is equipped with sealing flange, sealing flange with be equipped with deep groove ball bearing and skeleton oil blanket between the transmission switching shaft, sealing flange keeps away from one side of gas tank is equipped with the apron, the apron passes through bolted connection and is in on the sealing flange, sealing flange with one side that the gas tank contacted is equipped with the sealing washer.
As a preferred technical scheme:
the grounding switch operating mechanism is provided with a manual controller, and the manual controller is connected with the rotating arm.
The rotating arm can be driven to move through the manual controller, so that the hexagonal insulation main shaft is driven to rotate, the bus grounding switch is controlled to be opened and closed, and manual operation is achieved.
As a preferred technical scheme:
the grounding switch operating mechanism is provided with a PLC control module, and the PLC control module controls the movement of the rotating arm according to control logic so as to control the action of the bus grounding switch.
The control module controls the movement of the rotating arm, so that remote operation and electric operation can be realized, and bus grounding is realized.
As a preferred technical scheme:
PT cabinet is equipped with voltage transformer, voltage transformer passes through the cable and links to each other with the gas tank, can effectively promote the reliability of installation convenience and installation.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model discloses with generating line ground connection and generating line PT integrated in one aerify cabinet gas tank, provide a PT cabinet with generating line ground function, when being convenient for cabinet bus-bar overhaul and maintenance, the generating line ground connection is guaranteed to maintain personnel's safety, need not to set generating line ground connection cabinet alone simultaneously, practices thrift manufacturing cost and place occupation space. The bus grounding operation and other intervals of the system realize electrical interlocking, and the safety is improved.
The utility model discloses a set up manual control ware and drive the rocking arm motion, and then drive the insulating main shaft of hexagonal rotates, and manual operation is realized in the opening and shutting of control generating line earthing switch.
The utility model discloses a set up the motion of PLC control module control rocking arm, can realize distal end operation and electrically-operated, realize bus grounding.
Drawings
Fig. 1 is a front view of the PT cabinet of the present invention.
Fig. 2 is a rear view of the PT cabinet of the present invention.
Fig. 3 is a left side view of the PT cabinet of the present invention.
Fig. 4 is a right side view of the PT cabinet of the present invention.
Fig. 5 is a schematic structural diagram of the disconnection of the bus grounding switch of the present invention.
Fig. 6 is a schematic structural diagram of the bus grounding switch of the present invention.
Fig. 7 is a schematic structural view of the dynamic seal of the present invention.
Icon: 1-gas box, 2-bus grounding switch, 3-isolating switch, 4-grounding switch operating mechanism, 5-isolating switch operating mechanism, 6-gas box density relay, 7-voltage transformer, 8-cable, 9-lightning arrester, 10-external cone bus sleeve, 11-main bus bar, 12-primary main grounding bar, 13-movable knife, 14-movable knife holder, 15-hexagonal insulated main shaft, 16-rotating arm, 17-transmission transfer shaft, 18-sealing flange, 19-deep groove ball bearing, 20-skeleton oil seal, 21-cover plate, 22-sealing ring and 23-PLC control module.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, this embodiment provides a PT cabinet with bus grounding function, which includes an air box 1, a bus grounding switch 2 and a disconnecting switch 3 are disposed in the air box 1, a grounding switch operating mechanism 4 and a disconnecting switch operating mechanism 5 are disposed outside the air box 1, the grounding switch operating mechanism 4 is connected to the bus grounding switch 2 for controlling the opening and closing of the bus grounding switch 2, and the disconnecting switch operating mechanism 5 is connected to the disconnecting switch 3 for controlling the opening and closing of the disconnecting switch 3. And the air box 1 is also provided with an air box density relay 6.
Be equipped with voltage transformer 7 in the PT cabinet, voltage transformer 7 passes through cable 8 and links to each other with gas tank 1, still be equipped with arrester 9 in the PT cabinet.
The top of the gas box 1 is provided with an outer cone bus sleeve 10, and the outer cone bus sleeve 10 is an interface for connecting buses between two cabinets.
As shown in fig. 3-6, a main busbar 11 is arranged in the gas tank 1, the main busbar 11 is a main carrier of current in the gas tank 1, the main busbar 11 is connected with a primary main grounding bar 12 through the bus grounding switch 2, the primary main grounding bar 12 is connected with a grounding grid, and when a bus is maintained, after incoming line power failure, the bus grounding switch 2 is closed, the bus is grounded, residual voltage is eliminated, electric shock of workers is avoided, and personal safety of the workers is ensured.
The bus grounding switch 2 comprises a movable knife 13, the movable knife 13 is installed on a movable knife holder 14 in the air box 1, the movable knife 13 is rotatably connected to the movable knife holder 14, one end of the movable knife 13 is connected with the main busbar 11, and the other end of the movable knife 13 is connected with or disconnected from the primary main grounding bar 12.
The rotating connection of the movable knife 13 on the movable knife holder 14 is realized in the following way:
the movable knife 13 is connected with the grounding switch operating mechanism 4 through a hexagonal insulation main shaft 15. Specifically, a hexagonal hole is formed in the movable knife 13, a round hole is formed in the movable knife holder 14, the hexagonal insulation main shaft 15 penetrates through the hexagonal hole and the round hole, the cross-sectional size of the hexagonal insulation main shaft 15 is slightly smaller than that of the hexagonal hole, the hexagonal insulation main shaft and the hexagonal insulation main shaft are matched, and when the hexagonal insulation main shaft 15 rotates, the movable knife 13 is driven to rotate. The size of the round hole is larger than the sectional size of the hexagonal insulation main shaft 15, the hexagonal insulation main shaft 15 can freely rotate in the round hole, therefore, the movable knife 13 synchronously rotates along with the hexagonal insulation main shaft 15, the movable knife holder 14 is fixed in the air box 1 and does not move, and the hexagonal insulation main shaft 15 and the movable knife 13 can rotate relative to the movable knife holder 14.
And the hexagonal insulated main shaft 15 is connected with the earthing switch operating mechanism 4 through a rotating arm 16, and the earthing switch operating mechanism 4 controls the rotating arm 16 to rotate, so that the hexagonal insulated main shaft 15 is driven to rotate.
Since the earthing switch operating mechanism 4 and the rotating arm 16 are disposed outside the air box 1, and the hexagonal insulated main shaft 15 is located inside the air box 1, the air box 1 needs to be sealed while the rotating arm 16 smoothly drives the hexagonal insulated main shaft 15 inside the air box 1 to rotate. Therefore, as shown in fig. 7, a dynamic seal is further arranged between the hexagonal insulated main shaft 15 and the air box 1, the dynamic seal comprises a transmission transfer shaft 17, the hexagonal insulated main shaft 15 is connected with the rotating arm 16 through the transmission transfer shaft 17, one end of the transmission transfer shaft 17 is connected with the hexagonal insulated main shaft 15, and the other end of the transmission transfer shaft 17 extends out of the air box 1 and is connected with the rotating arm 16. The outside of transmission change shaft 17 is equipped with sealing flange 18, sealing flange 18 with be equipped with deep groove ball bearing 19 and skeleton oil blanket 20 between the transmission change shaft 17, sealing flange 18 keeps away from one side of gas tank 1 is equipped with apron 21, apron 21 passes through bolted connection on sealing flange 18, sealing flange 18 with one side that gas tank 1 contacted is equipped with sealing washer 22.
The earthing switch operating mechanism 4 is provided with a manual controller, and the manual controller is connected with the rotating arm 16. The manual controller can drive the rotating arm 16 to move, so as to drive the hexagonal insulation main shaft 15 to rotate, control the opening and closing of the bus grounding switch 2, and realize manual operation.
Example 2
This example differs from example 1 in that:
the grounding switch operating mechanism 4 is provided with a PLC control module 23, and the PLC control module 23 controls the movement of the rotating arm 16 according to control logic so as to control the action of the bus grounding switch 2. The control module controls the movement of the rotating arm 16, so that remote operation and electric operation can be realized, and bus grounding is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a PT cabinet with bus grounding function which characterized in that:
including the gas tank, be equipped with main female arranging and once main ground connection row in the gas tank, once main ground connection row links to each other with the ground net, main female arranging with once be equipped with bus earthing switch between the main ground connection row, the gas tank outside is equipped with earthing switch operating device, earthing switch operating device with bus earthing switch links to each other for control bus earthing switch's the opening and shutting.
2. The PT cabinet with bus grounding function according to claim 1, wherein:
the bus grounding switch comprises a movable knife, the movable knife is installed on a movable knife holder in the air box, the movable knife is rotatably connected to the movable knife holder, one end of the movable knife is connected with the main bus bar, and the other end of the movable knife is connected with or disconnected from the primary main grounding bar.
3. The PT cabinet with bus grounding function of claim 2, wherein:
the movable knife is connected with the grounding switch operating mechanism through a transmission mechanism.
4. The PT cabinet with busbar grounding function according to claim 3, characterized in that:
the transmission mechanism is a hexagonal insulation main shaft, a hexagonal hole is formed in the movable cutter, a round hole is formed in the movable cutter holder, the hexagonal insulation main shaft penetrates through the hexagonal hole and the round hole, the hexagonal insulation main shaft is matched with the hexagonal hole, and the movable cutter is driven to rotate relative to the movable cutter holder by the rotation of the hexagonal insulation main shaft.
5. The PT cabinet with busbar grounding function according to claim 4, characterized in that:
the size of the round hole is larger than the sectional size of the hexagonal insulation main shaft, and the hexagonal insulation main shaft and the movable knife can rotate relative to the movable knife base.
6. The PT cabinet with busbar grounding function according to claim 4, characterized in that:
the hexagonal insulation main shaft is connected with the grounding switch operating mechanism through a rotating arm, and the grounding switch operating mechanism controls the rotating arm to rotate so as to drive the hexagonal insulation main shaft to rotate.
7. The PT cabinet with busbar grounding function according to claim 6, characterized in that:
and a dynamic seal is arranged between the hexagonal insulation main shaft and the air box.
8. The PT cabinet with busbar grounding function according to claim 7, characterized in that:
the dynamic seal includes transmission switching shaft, the hexagonal insulation main shaft passes through transmission switching shaft with the rocking arm links to each other, the outside of transmission switching shaft is equipped with sealing flange, sealing flange with be equipped with deep groove ball bearing and skeleton oil blanket between the transmission switching shaft, sealing flange keeps away from one side of gas tank is equipped with the apron, the apron passes through bolted connection and is in on the sealing flange, sealing flange with one side that the gas tank contacted is equipped with the sealing washer.
9. The PT cabinet with busbar grounding function according to claim 6, characterized in that:
the grounding switch operating mechanism is provided with a manual controller, and the manual controller is connected with the rotating arm.
10. The PT cabinet with busbar grounding function according to claim 6, characterized in that:
the grounding switch operating mechanism is provided with a PLC control module which controls the movement of the rotating arm according to control logic so as to control the action of the bus grounding switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222342449.9U CN218040223U (en) | 2022-08-31 | 2022-08-31 | PT cabinet with bus grounding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222342449.9U CN218040223U (en) | 2022-08-31 | 2022-08-31 | PT cabinet with bus grounding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218040223U true CN218040223U (en) | 2022-12-13 |
Family
ID=84353058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222342449.9U Active CN218040223U (en) | 2022-08-31 | 2022-08-31 | PT cabinet with bus grounding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218040223U (en) |
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2022
- 2022-08-31 CN CN202222342449.9U patent/CN218040223U/en active Active
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