CN110620345A - 10kV middle-placed switch cabinet bus grounding rod - Google Patents
10kV middle-placed switch cabinet bus grounding rod Download PDFInfo
- Publication number
- CN110620345A CN110620345A CN201910861831.0A CN201910861831A CN110620345A CN 110620345 A CN110620345 A CN 110620345A CN 201910861831 A CN201910861831 A CN 201910861831A CN 110620345 A CN110620345 A CN 110620345A
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- CN
- China
- Prior art keywords
- parts
- handle
- rod
- chuck
- insulating
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/14—Shutters or guards for preventing access to contacts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a 10kV middle-mounted switch cabinet bus grounding rod which is used for solving the problems that in the prior art, a switch cabinet is narrow in space, and other grounding rods are not suitable for use. The method comprises the following steps: the chuck connecting pieces are two symmetrically distributed rod pieces, the two chuck connecting pieces are distributed in a V shape, the chuck connecting pieces are formed by connecting chuck parts and connecting parts, and the distance between the two chuck parts is greater than the distance between the two connecting parts; the top ends of the two chuck parts are respectively provided with a contact end; the fixing piece is a T-shaped plate, the lower end of the fixing piece is connected with the insulating rod, the left end and the right end of the upper part of the fixing piece are respectively in pin joint with the upper end of one connecting part, the two ends of the spring are respectively and fixedly connected with the middle parts of the two connecting parts, the two connecting parts are respectively in pin joint with one end of one movable connecting piece, and the other ends of the two movable connecting pieces are in pin joint; the other end of the two movable connecting pieces is connected with one end of an insulating pull rope, the insulating pull rope penetrates through the inside of the insulating rod, the other end of the insulating pull rope is connected to the handle, and the handle can be pulled out outwards along the insulating rod. The beneficial effect is that the operation is convenient and safe.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a 10kV middle-mounted switch cabinet bus grounding rod.
Background
At present, for a 10kV distribution room of a transformer substation, a 10kV bus is required to be overhauled due to work such as equipment modification and extension, and in the process of installing a grounding wire on the 10kV bus, due to the fact that the grounding point space is limited, the grounding point structure difference is large, the used grounding rods are more in types, but the universality is poor, and the safety requirement of field work cannot be met. For example, the 'double-tongue hook type' grounding rod is very suitable for grounding of outdoor wires, wire noses and the like, is not very suitable for grounding of aluminum bars and the like, and the 'forceps type' grounding rod is very suitable for grounding bodies of aluminum bars and the like, is only suitable for line maintenance conditions, and cannot meet related safety measures in the process of 10kV bus bar maintenance. Meanwhile, for the place with a narrow space, such as a central switch cabinet, the existing grounding rod is installed at an angle when in use, so that installation personnel can enter the equipment for installation by the body, and operation risks are greatly increased.
Disclosure of Invention
The embodiment of the invention provides a 10kV middle-mounted switch cabinet bus grounding rod, which is used for solving the problems that in the prior art, no device capable of being installed in a narrow space, namely a middle-mounted switch cabinet, exists in various grounding rods, so that an operator cannot keep a sufficient safety distance with a ground wire in the installation process, and certain potential safety hazards exist.
A10 kV middle-placed switch cabinet bus grounding rod comprises: the chuck connecting pieces are two symmetrically distributed rod pieces, the two chuck connecting pieces are distributed in a V shape, the chuck connecting pieces are formed by connecting chuck parts and connecting parts, and the distance between the two chuck parts is greater than the distance between the two connecting parts; the top ends of the two chuck parts are respectively provided with a contact end which is an opposite arc panel; the fixing piece is a T-shaped plate, the lower end of the fixing piece is connected with the insulating rod, the left end and the right end of the upper part of the fixing piece are respectively in pin joint with the upper end of one connecting part, the two ends of the spring are respectively and fixedly connected with the middle parts of the two connecting parts, the two connecting parts are respectively in pin joint with one end of one movable connecting piece, the other ends of the two movable connecting pieces are in pin joint, and the sum of the lengths of the two movable connecting pieces is; the other ends of the two movable connecting pieces are connected with one end of an insulating pull rope, the insulating pull rope penetrates through the inside of the insulating rod, the other end of the insulating pull rope is connected to the handle, and the handle can be pulled out outwards along the insulating rod; the ground wires are hung on the two chuck connecting pieces.
Preferably, when the insulating pull rope is pulled towards the handle, the two clamping head parts are U-shaped with an opening at the bottom, the position of the opening at the bottom is connected with the connecting part, the connecting part is a straight rod, and the two connecting parts are in a parallel state.
Preferably, the fixing piece is two T-shaped plates, the two T-shaped plates clamp the two connecting parts in the middle and are in pin joint, and the position of the two T-shaped plates in the middle of the two connecting parts is provided with a limiting lug.
Preferably, the fixing piece lower extreme passes through the connecting seat and connects the insulator spindle, and connecting seat upper portion sets up U type splint centre gripping fixing piece, and the connecting seat lower part is hollow cylinder, cup joints at the insulator spindle top.
Preferably, the handle is made of rubber.
Preferably, the handle includes fixed handle and removal handle, and fixed handle is fixed to be cup jointed in the insulator spindle bottom, and removal handle diameter is greater than fixed handle to cup joint on fixed handle, along fixed handle axial displacement, insulating stay cord is connected in removal handle.
Preferably, the contact end and the collet coupler are made of copper.
Preferably, the spring is a compression spring.
The beneficial effects of the invention include: by controlling the expansion of the movable rubber handle and the ingenious matching of the spring and the grounding head, the grounding head is perfectly suitable for the fixed contact in the switch cabinet and is firm to install. The problems that an existing transformer substation grounding rod is not suitable for use, inconvenient to work, low in working efficiency and risky to work are solved, and the working efficiency of field operators is improved. Put formula cubical switchboard generating line earthed pole in 10kV adopts global design, carry out ingenious combination with insulating earthed pole and earthing joint, stay cord through holding ring department cooperates with the spring of earthing joint department, make the earthing joint under the spring force effect, can be fixed in completely on the static contact in the formula cubical switchboard in 10kV, effectively solved because install the angle problem and cause personnel's hand, the problem that the health got into equipment is inside to be installed or can't be installed, operating personnel's danger has been reduced, the rationality that the on-the-spot safety measure arranged has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a 10kV central-positioned switch cabinet bus grounding rod in an unstretched state in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a 10kV central-positioned switch cabinet bus grounding rod in a stretching state in the embodiment of the invention.
Detailed Description
In order to provide a grounding device which meets the requirement of grounding a bus in a 10kV middle-set type switch cabinet and ensures the life safety of field workers, the preferred embodiment of the invention is described below by combining the attached drawings of the specification.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a 10kV central-positioned switch cabinet bus grounding rod, where the 10kV central-positioned switch cabinet bus grounding rod includes: the chuck connecting piece 1 is formed by connecting two chuck parts 101 and connecting parts 102, and the distance between the two chuck parts 101 is greater than that between the two connecting parts 102; the top ends of the two head clamping parts 101 are respectively provided with a contact end 2, and the contact ends 2 are opposite arc panels; the contact end 2 and the collet connector 1 are made of copper. The fixing piece 3 is a T-shaped plate, the lower end of the fixing piece 3 is connected with the insulating rod 4, the left end and the right end of the upper part of the fixing piece 3 are respectively in pin joint with the upper end of one connecting part 102, the two ends of the spring 5 are respectively and fixedly connected with the middle parts of the two connecting parts 102, the spring 5 is a pressure spring, the two connecting parts 102 are respectively in pin joint with one end of one movable connecting piece 9, the other ends of the two movable connecting pieces 9 are in pin joint, and the sum of the lengths of the two movable connecting pieces 9; the other ends of the two movable connecting pieces 9 are connected with one end of an insulating pull rope 6, the insulating pull rope 6 penetrates through the insulating rod 4, the other end of the insulating pull rope is connected to a handle 7, and the handle 7 can be pulled out along the insulating rod 4; the two chuck connecting pieces 1 are hung with ground wires.
When the insulating rope 6 is pulled toward the handle 7, the two clip parts 101 are U-shaped with an open bottom, the open bottom is connected with the connecting part 102, the connecting part 102 is a straight rod, and the two connecting parts 102 are parallel.
The fixing piece 3 is two T-shaped plates, the two connecting parts 102 are clamped between the two T-shaped plates and are in pin joint, and the position of the two T-shaped plates between the two connecting parts 102 is provided with a limiting lug 301. The lower extreme of mounting 3 passes through connecting seat 8 and connects insulator spindle 4, and 8 upper portions of connecting seat set up U type splint centre gripping mounting 3, and 8 lower parts of connecting seat are hollow cylinder, cup joint at 4 tops of insulator spindle.
The handle 7 is made of rubber. The handle 7 comprises a fixed handle 701 and a movable handle 702, the fixed handle 701 is fixedly sleeved at the bottom end of the insulating rod 4, the diameter of the movable handle 702 is larger than that of the fixed handle 701, the movable handle 702 is sleeved on the fixed handle 701 and moves along the axial direction of the fixed handle 701, and the insulating pull rope is connected to the movable handle 702.
The structure and principle of the bus grounding rod of the 10kV middle-set switch cabinet in the embodiment of the invention are described in detail below.
The 10kV middle-mounted switch cabinet bus grounding rod in the embodiment of the invention adopts a connection mode of separating an insulating rod 4 from a grounding wire clamp, and the insulating rod 4 is connected with a wiring wire clamp through a connecting piece; the ground clamp is a V-shaped clamp, the size is small, and the ground clamp can be stretched by the spring 5 to control the opening angle of the ground clamp, so that fixation is realized.
In terms of selection of the ground clamp, the existing ground clamp mainly includes the following three types: u-shaped spring, E-shaped thimble, E-shaped spring. The three grounding wire clamps are overlarge in size and free of fixed support, and when a bus of the centrally installed switchgear is powered off, the bus cannot be completely touched and grounded, so that the grounding wire clamps cannot be used.
In the aspect of manufacturing the rod body, a 10 kilovolt insulating rod body qualified in the test is selected.
The grounding wire clamp comprises two chuck connecting pieces 1 and contact ends 2 fixed on the joint connecting pieces, wherein the two chuck connecting pieces 1 are made into bent rod pieces and comprise three parts, the top ends of the first parts are fixed with the contact ends 2, the first parts are parallel straight rods, the third parts are connecting parts 102 and are also parallel straight rods, the second parts are the straight rods connecting the first parts and the third parts, the distance between the first parts is larger than that between the third parts, and the whole grounding wire clamp is in a V shape; the contact end 2 is a small section of cambered surface, the cambered surface is unfolded into a rectangle, and the inner diameter of the cambered surface is the same as the outer diameter of the fixed contact of the central switch cabinet; the fixing piece 3 is used for fixing the chuck connecting piece 1 of the grounding wire clamp, and two ends of the upper part of the fixing piece are respectively hinged with the chuck connecting piece 1, so that the contact end 2 at the top end of the chuck connecting piece 1 can be far away from or close to the chuck connecting piece 1; the upper part of the fixing piece 3 is made into an I shape, one transverse part above the I shape is used for hinging the chuck connecting piece 1, one transverse part below the I shape is used as a limiting lug 301 for limiting the plane motion of the chuck connecting piece 1, two notches of the I shape are just used for connecting the grounding wire at the same time, a reliable hanging point of the grounding wire is made at the position, the reliable hanging point is formed by twisting a plurality of strands of copper wires into a strand, two ends of the reliable hanging point are fixed on the chuck connecting piece 1, and the middle of the reliable hanging point is fixed; the position of the chuck connecting piece 1 close to the insulating rod 4 is connected with a movable connecting piece 9, a pressure spring is fixed above the position close to the movable connecting piece 9, the movable connecting piece 9 is divided into two sections, the end parts of the two movable connecting pieces 9 are hinged firstly, the two ends of the two movable connecting pieces 9 which are not hinged are hinged with the two chuck connecting pieces 1 respectively, and a hinged point between the two movable connecting pieces 9 is fixedly connected with an insulating pull rope 6; mounting 3 and insulator spindle 4 pass through connecting seat 8 to be connected, and 8 upper portions of connecting seat set up U type splint centre gripping mounting 3, and 8 lower parts of connecting seat are hollow cylinder, cup joint at 4 tops of insulator spindle. The insulation pull rope 6 penetrates through the inside of the insulation rod 4, the other end of the insulation pull rope is connected to the bottom end of the inside of the movable handle 702, the handle 7 comprises a fixed handle 701 and a movable handle 702, and the fixed handle 701 and the movable handle 702 are both made of rubber and are both hollow cylinders; the fixed handle 701 is fixedly sleeved at the tail end of the insulating rod 4, the inner diameter of the movable handle 702 is the same as the outer diameter of the fixed handle 701, and the movable handle is sleeved at the tail end of the fixed handle 701.
When the chuck is not in use, the movable handle 702 and the fixed handle 701 are closed, the insulating pull rope 6 does not apply a pulling force to the movable connecting pieces 9, the spring 5 extends towards two ends, the two movable connecting pieces 9 extend into a line, the connecting part 102 of the chuck connecting piece 1 is opened towards two sides, the chuck connecting piece 1 rotates around a hinge point with the fixed piece 3, and the two contact ends 2 are in the closest state.
When the movable clamp connector is used, the movable handle 702 is pulled away from a clamp, the insulating pull rope 6 fixedly connected with the movable handle 702 pulls the two movable connecting sheets 9 from a line state to form an angle of less than 180 degrees between the two movable connecting sheets 9, the spring 5 is compressed, the connecting part 102 of the two clamp connector 1 is inwards close to a parallel state, the contact ends 2 are separated, the contact ends 2 are closed to hold the static contact of a middle-mounted switch cabinet, then the movable handle 702 and the fixed handle 701 are closed, and the contact ends 2 are close under the pressure of the spring 5 towards the two ends and clamp the static contact of the middle-mounted switch cabinet.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a put formula cubical switchboard generating line earthing rod in 10kV which characterized in that includes: the chuck connecting pieces are two symmetrically distributed rod pieces, the two chuck connecting pieces are distributed in a V shape, the chuck connecting pieces are formed by connecting chuck parts and connecting parts, and the distance between the two chuck parts is greater than the distance between the two connecting parts; the top ends of the two chuck parts are respectively provided with a contact end which is an opposite arc panel; the fixing piece is a T-shaped plate, the lower end of the fixing piece is connected with the insulating rod, the left end and the right end of the upper part of the fixing piece are respectively in pin joint with the upper end of one connecting part, the two ends of the spring are respectively and fixedly connected with the middle parts of the two connecting parts, the two connecting parts are respectively in pin joint with one end of one movable connecting piece, the other ends of the two movable connecting pieces are in pin joint, and the sum of the lengths of the two movable connecting pieces is; the other ends of the two movable connecting pieces are connected with one end of an insulating pull rope, the insulating pull rope penetrates through the inside of the insulating rod, the other end of the insulating pull rope is connected to the handle, and the handle can be pulled out outwards along the insulating rod; the ground wires are hung on the two chuck connecting pieces.
2. The grounding rod of 10kV middle-positioned switch cabinet bus bar as claimed in claim 1, wherein when the insulation rope is pulled towards the handle, the two clamping head parts are U-shaped with an open bottom, the open bottom is connected with the connecting part, the connecting part is a straight rod, and the two connecting parts are parallel.
3. The grounding rod of 10kV middle-placed switch cabinet bus bar of claim 1, wherein the fixing member is two T-shaped plates, the two T-shaped plates clamp the two connecting parts in the middle and are in pin joint, and the two T-shaped plates are provided with a limiting lug at the position between the two connecting parts.
4. The grounding rod of 10kV middle-placed switch cabinet bus bar as claimed in claim 1, wherein the lower end of the fixing member is connected with the insulating rod through a connecting seat, the upper part of the connecting seat is provided with a U-shaped clamping plate for clamping the fixing member, and the lower part of the connecting seat is a hollow cylinder and is sleeved on the top of the insulating rod.
5. The grounding rod of 10kV middle-placed switch cabinet bus bar of claim 1, wherein the handle is made of rubber.
6. The 10kV middle-placed switch cabinet bus grounding rod as claimed in any one of claims 1 or 5, wherein the handle comprises a fixed handle and a movable handle, the fixed handle is fixedly sleeved at the bottom end of the insulating rod, the diameter of the movable handle is larger than that of the fixed handle, the movable handle is sleeved on the fixed handle and moves along the axial direction of the fixed handle, and the insulating pull rope is connected to the movable handle.
7. The 10kV mid-mount switchgear bus bar grounding bar of claim 1, wherein the contact end and the clip connector are made of copper material.
8. The 10kV mid-mounted switchgear bus bar grounding bar of claim 1, wherein the spring is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861831.0A CN110620345A (en) | 2019-09-12 | 2019-09-12 | 10kV middle-placed switch cabinet bus grounding rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861831.0A CN110620345A (en) | 2019-09-12 | 2019-09-12 | 10kV middle-placed switch cabinet bus grounding rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110620345A true CN110620345A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910861831.0A Pending CN110620345A (en) | 2019-09-12 | 2019-09-12 | 10kV middle-placed switch cabinet bus grounding rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636029A (en) * | 2020-12-10 | 2021-04-09 | 贵州电网有限责任公司 | High-voltage cable butt-joint box grounding wire with clamping rods and use method |
-
2019
- 2019-09-12 CN CN201910861831.0A patent/CN110620345A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636029A (en) * | 2020-12-10 | 2021-04-09 | 贵州电网有限责任公司 | High-voltage cable butt-joint box grounding wire with clamping rods and use method |
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