CN218849308U - Quick earthing device of 10kV overhead line broken ring point - Google Patents
Quick earthing device of 10kV overhead line broken ring point Download PDFInfo
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- CN218849308U CN218849308U CN202223206362.5U CN202223206362U CN218849308U CN 218849308 U CN218849308 U CN 218849308U CN 202223206362 U CN202223206362 U CN 202223206362U CN 218849308 U CN218849308 U CN 218849308U
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- switch
- insulator
- grounding
- disconnecting link
- contact piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The utility model relates to an earthing device technical field particularly, relates to a quick earthing device of 10kV overhead line broken ring point, solves the current problem of the maloperation of ground connection when installing the mode of earth connection and taking trouble hard and easily taking place the electrified. The device comprises: a mounting seat; the ground mechanism of setting on the mount pad, ground mechanism includes: a first insulator and a second insulator; connecting a three-phase electric contact sheet and a grounding contact sheet of the insulator; a disconnecting switch for connecting the three-phase electric contact sheet and the grounding contact sheet; one end of the first wire is connected with the moving contact of the disconnecting link switch, and the other end of the first wire is grounded; and prevent maloperation blocking device includes: the shell provided with the side holes, the electromagnet, the permanent magnet, the movable tongue pin and the compression spring are sequentially connected with the electromagnet, the second wire and a voltage transformer outside the shell; when the equipment is electrified, the voltage transformer senses induced electricity, and one end of the movable tongue pin extends out of the side hole of the shell to block the switch-on of the disconnecting link switch.
Description
Technical Field
The application relates to the technical field of grounding equipment, in particular to a 10kV overhead line loop breaking point quick grounding device.
Background
The grounding is to connect the metal casing of the equipment or the cable with the ground through a grounding wire by a conductor, so that the potential of the metal casing is kept consistent with the ground, the grounding is mainly used for preventing static electricity, and the conductor can conduct away charges in time after being connected with the ground to prevent the danger caused by the discharge due to the accumulation of the charges. Therefore, when the overhead line of the power distribution network is subjected to power failure maintenance construction, in order to prevent the occurrence of personal electric shock accidents caused by the fact that an adjacent charged body generates electrostatic induction or reverse power transmission suddenly occurs, the overhead line to be maintained needs to be provided with a grounding wire for high-voltage equipment which is possible to reverse power transmission.
Overhead lines are generally erected on high poles, gate poles, or on the same pole. When the overhead line is overhauled and repaired, a 10kV operation grounding wire is generally required to be arranged at a broken ring point of the overhead line (the broken ring point refers to a connecting point of two 10kV lines). When the ground wire is installed on site, the electric pole needs to be installed again after the maintenance is completed, and the electric pole needs to be installed again to be cut off, and if the electric pole is installed together with the electric pole, operations such as power failure range expansion, ground wire number increase and the like need to be carried out.
It can be seen that the ground wire is installed on site, the ground wire needs to be installed on the upper pole, and the upper pole and the lower pole need to be installed for many times, and when the electric pole is located in a special terrain, the difficulty of installing the ground wire is increased, and the ground protection device is not provided, so that the misoperation of grounding under the condition that the equipment is electrified is easily caused. Therefore, the mode of installing the earth connection in the prior art has the problem that the high altitude falls, takes trouble and labours and is easy to cause misoperation.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the mode of installing the earth connection among the prior art exists easily to take place the high altitude and fall, take trouble hard and easily take place the maloperation of ground connection when electrified, the application provides a 10kV overhead line broken ring point quick earthing device.
The embodiment of the application is realized as follows:
the embodiment of the application provides a 10kV overhead line broken ring point quick earthing device, includes:
a mounting seat;
set up the ground mechanism on the mount pad, ground mechanism includes:
the first insulator and the second insulator are oppositely arranged on the mounting seat;
the grounding contact piece is connected with the first insulator, and the three-phase electric contact piece is connected with the second insulator;
the disconnecting link switch is connected with the grounding contact piece and the three-phase electric contact piece, wherein a static contact of the disconnecting link switch is connected with the grounding contact piece, and a moving contact of the disconnecting link switch is connected with the three-phase electric contact piece;
the other end of the first wire is grounded;
and a mis-operation prevention locking device, the mis-operation prevention locking device comprising: the electromagnetic transformer comprises a shell with a side hole, an electromagnet, a permanent magnet, a movable tongue pin and a compression spring, wherein the electromagnet is arranged in the shell from one side far away from the side hole, one end of the permanent magnet is close to the electromagnet, one end of the movable tongue pin is connected with the other end of the permanent magnet, the compression spring is sleeved outside the movable tongue pin, one end of a second electric wire is also connected with one end of the electromagnet, the other end of the second electric wire is connected with a voltage transformer, and the voltage transformer is positioned outside the shell; the misoperation preventing locking device is close to the moving contact, and the axis of the movable tongue pin is positioned between the moving contact and the fixed contact;
when the equipment is electrified, the voltage transformer senses induced electricity, and one end, far away from the permanent magnet, of the movable tongue pin extends out of a side hole contained in the shell to the movement area of a disconnecting link of the disconnecting link switch so as to block the switching-on of the disconnecting link switch.
In some embodiments, six insulators are arranged on the mounting seat, the six insulators are arranged in two rows and three columns, three first insulators are located in a first row, and three second insulators are located in a second row.
In some embodiments, the side of the mounting seat is connected with a hoop, the device is mounted on the electric pole through the hoop, and the first electric wire is arranged in the electric pole in a penetrating mode.
The technical scheme of the application has the following beneficial effects:
the three-phase electric contact piece is correspondingly connected with a three-phase wire of equipment, when grounding is needed, an operator holds an insulating rod to push a disconnecting link of a disconnecting link switch, so that a grounding contact piece is connected with a three-phase electric contact piece, the disconnecting link switch of a grounding mechanism is in a closing state, the purpose of grounding the equipment is achieved, multiple rod ascending and descending are not needed, the operation is simple and efficient, and the problems that high-altitude falling is easy to occur and labor and trouble are wasted are solved; in another aspect, when the device or the line is electrified, the movable tongue pin extends out of the side hole in the shell to block the switch-on of the disconnecting link switch, so that the danger of combustion and even explosion caused by a large amount of discharge arc generated by the grounded disconnecting link switch under the condition that the line is electrified is avoided; under the condition that the equipment is not electrified, the movable tongue pin retracts into the shell, and the knife switch can be switched on to realize grounding.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a 10kV overhead line loop breaking point quick grounding device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an anti-misoperation locking device provided in the embodiment of the present application;
fig. 3 is a schematic diagram illustrating a state in which a movable tongue pin of the locking device for preventing misoperation extends to disable closing of the disconnecting link when the device is electrified according to the embodiment of the present application;
fig. 4 is a schematic diagram illustrating a state in which a knife switch can be closed due to retraction of a movable latch of the anti-misoperation locking device when the device provided by the embodiment of the present application is not powered;
illustration of the drawings:
10, a mounting base;
20. a grounding mechanism 21, a first insulator 22 and a second insulator; 23. knife switch 231, knife switch; 231. a static contact, 232 and a moving contact;
30. the anti-misoperation locking device comprises an anti-misoperation locking device 31, a shell 32, an electromagnet 33, a permanent magnet 34, a movable tongue pin 35, a compression spring 36, a power line 37 and a voltage transformer.
Detailed Description
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for convenience of understanding of the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The terms "disposed" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Fig. 1 schematically shows a structure of a 10kV overhead line loop breaking point quick grounding device.
The application provides a pair of 10kV overhead line broken ring point quick earthing device includes: a mounting seat 10;
a grounding mechanism 20 disposed on the mount 10, the grounding mechanism 20 comprising: a first insulator 21 and a second insulator 22 oppositely mounted on the mounting seat 10; a disconnecting link switch 23 connecting the grounding contact piece and the three-phase electric contact piece, wherein a fixed contact 231 of the disconnecting link switch 23 is connected with the grounding contact piece, and a movable contact 232 of the disconnecting link switch 23 is connected with the three-phase electric contact piece; the fixed contact 231 is a connecting end of the disconnecting link switch, and the movable contact 232 is a hinged end hinged with the disconnecting link; and one end of the first wire is connected with the fixed contact 231 of the disconnecting link switch 23, the other end of the first wire is grounded, and the three-phase electric contact piece is used for being connected with a three-phase wire of equipment.
When the equipment is normally used, the disconnecting switch 23 is disconnected; when the equipment needs to be grounded, the disconnecting link rotates to the fixed contact 231, the disconnecting link switch 23 is switched on, at the moment, the grounding contact piece is connected with the three-phase electric contact piece, and the equipment is grounded.
On this basis, the quick earthing device of this application still is provided with anti-misoperation locking device 30, like fig. 2 for the structure schematic diagram of the anti-misoperation locking device that this application embodiment provided, the casing 31 is not shown in the figure, is located near second insulator 22 anti-misoperation locking device 30 includes: the electromagnetic transformer comprises a shell 31 provided with a side hole, an electromagnet 32, a permanent magnet 33, a movable tongue pin 34 and a compression spring 35, wherein the electromagnet 32 is arranged in the shell 31 from one side far away from the side hole, one end of the permanent magnet is close to the electromagnet 32, one end of the movable tongue pin 34 is connected with the other end of the permanent magnet 33, the compression spring 35 is sleeved outside the movable tongue pin 34, one end of a second electric wire 36 is further connected with the electromagnet 32, the other end of the second electric wire 36 is connected with a voltage transformer 37, and the voltage transformer 37 is positioned outside the shell 31; one end of the compression spring 35 is connected with the permanent magnet 33, and the other end of the compression spring is connected with the edge of the side hole; the anti-misoperation locking device 30 is close to the movable contact 232, the axis of the movable tongue pin is located between the movable contact 232 and the fixed contact 231, and the axis of the movable tongue pin 34 is perpendicular to the connecting line between the movable contact and the fixed contact.
Fig. 3 is a schematic diagram illustrating a state in which a movable latch of the anti-misoperation locking device extends out to disable the disconnecting link when the device is electrified, and a housing is not shown in the diagram; fig. 4 is a schematic diagram of a state in which the disconnecting link can be closed due to retraction of the movable latch of the anti-misoperation locking device when the device provided by the embodiment of the application is not powered.
Increase and prevent that maloperation blocking device 30 from preventing to carry out the maloperation to quick earthing device, specific effect is:
when the device is electrified, the voltage transformer 37 of the misoperation preventing locking device 30 senses the action of the induced electricity to generate electric energy, the electric energy is transmitted to the electromagnet 32 through the second wire 36, so that the electromagnet 32 is electrified and generates strong magnetic thrust with the direction pointing to the electromagnet 32, the electro-permanent magnet 33 moves towards the direction of the principle electromagnet 32 under the strong magnetic thrust and simultaneously drives the movable tongue pin 34 connected with the permanent magnet 33 to gradually extend out of the shell 31, the knife switch of the knife switch positioned on one side of the shell cannot be contacted with the fixed contact because the extended movable tongue pin occupies part of the movement area of the knife switch, namely, the knife switch cannot be closed, and the grounding misoperation under the electrified condition of the device is avoided. It should be noted that the permanent magnet 33 and the movable tongue 34 simultaneously compress the compression spring 35 connected to the permanent magnet 33 during the movement in the direction away from the permanent magnet 33.
Under the condition that the equipment is not electrified, the voltage transformer 37 of the anti-misoperation locking device 30 does not generate electric energy because the voltage transformer does not sense the action of induced electricity, the electromagnet 32 loses magnetic force because the electromagnet is not electrified, the permanent magnet 33 and the movable tongue pin 34 move towards the direction close to the electromagnet 32 under the driving of the power-accumulating compression spring 35, and the purpose that the movable tongue pin 34 retracts into the shell 31 is achieved, and the disconnecting link of the disconnecting link switch is not blocked, so that the switching-on can be realized.
The insulating parts in this embodiment are insulators, and since the overhead line is generally three-phase power transmission, six insulators are disposed on the mounting base 10 of the quick grounding device and are distributed in two rows and three columns, three first insulators 21 are located in a first row, and three second insulators 22 are located in a second row.
In some embodiments, the present application includes three single-pole knife-switch switches 23, and the hinged end (i.e., the fixed contact) and the contact end (i.e., the movable contact) of each single-pole knife-switch 23 are respectively connected to the three-phase electric contact pad and the grounding contact pad in the same column, that is, one single-pole knife-switch 23 is connected to each column of insulators. When the knife switches of the three single-pole knife switch switches 23 are all contacted with the contact end, namely the knife switch switches on the knife switch switches 23, and the equipment is grounded.
For the convenience with this application device installation on the pole the side of mount pad 10 is connected with the staple bolt, through the staple bolt will the device is installed on the pole, first electric wire is worn to locate in the pole.
When the equipment is normally used, all the disconnecting switch switches 23 are in an off state; when equipment needs to be maintained, the three-phase electric contact piece is correspondingly connected with a three-phase wire of the equipment, an operator holds the insulating operating rod, dials the disconnecting link 231 of the disconnecting link switch 23, and enables the disconnecting link to be in contact with the fixed contact, namely the disconnecting link switch 23 is switched on, at the moment, the grounding contact piece and the three-phase electric contact piece are closed, and at the moment, the grounding operation of the equipment is completed. After the equipment maintenance is completed, an operator holds the insulating operating rod, dials the disconnecting link of the disconnecting link switch 23 again, enables the disconnecting link to be far away from the moving contact, and at the moment, the grounding contact piece is disconnected with the three-phase electric contact piece, the equipment is normally used, and the misoperation prevention locking device can avoid the successful switching-on of the disconnecting link switch when the equipment is electrified.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the foregoing discussion in some embodiments is not intended to be exhaustive or to limit the implementations to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.
Claims (3)
1. The utility model provides a 10kV overhead line breaks quick earthing device of loop point which characterized in that includes:
a mounting base;
set up ground mechanism on the mount pad, ground mechanism includes:
the first insulator and the second insulator are oppositely arranged on the mounting seat;
the grounding contact piece is connected with the first insulator, and the three-phase electric contact piece is connected with the second insulator;
the disconnecting link switch is connected with the grounding contact piece and the three-phase electric contact piece, wherein a static contact of the disconnecting link switch is connected with the grounding contact piece, and a moving contact of the disconnecting link switch is connected with the three-phase electric contact piece;
the other end of the first wire is grounded;
and a mis-operation prevention locking device, the mis-operation prevention locking device comprising: the electromagnetic transformer comprises a shell provided with a side hole, an electromagnet, a permanent magnet, a movable tongue pin and a compression spring, wherein the electromagnet is arranged in the shell from one side far away from the side hole, one end of the permanent magnet is close to the electromagnet, one end of the movable tongue pin is connected with the other end of the permanent magnet, the compression spring is sleeved outside the movable tongue pin, one end of a second electric wire is also connected with one end of the second electric wire, the other end of the second electric wire is connected with a voltage transformer, and the voltage transformer is positioned outside the shell; the misoperation preventing locking device is close to the moving contact, and the axis of the movable tongue pin is positioned between the moving contact and the fixed contact;
when equipment is electrified, voltage transformer feels the response electricity, the activity tongue round pin is kept away from the one end of permanent magnet is followed stretch out in the side opening that the casing contains the motion region of switch in order to block switch-on of switch.
2. The 10kV overhead line loop breaking point quick grounding device according to claim 1, wherein six insulators are arranged on the mounting base in two rows and three columns, three first insulators are located in a first row, and three second insulators are located in a second row.
3. The 10kV overhead line loop breaking point quick grounding device according to claim 1, wherein a hoop is connected to a side face of the mounting seat, the device is mounted on an electric pole through the hoop, and the first electric wire is arranged in the electric pole in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223206362.5U CN218849308U (en) | 2022-11-30 | 2022-11-30 | Quick earthing device of 10kV overhead line broken ring point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223206362.5U CN218849308U (en) | 2022-11-30 | 2022-11-30 | Quick earthing device of 10kV overhead line broken ring point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218849308U true CN218849308U (en) | 2023-04-11 |
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ID=87301884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223206362.5U Active CN218849308U (en) | 2022-11-30 | 2022-11-30 | Quick earthing device of 10kV overhead line broken ring point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218849308U (en) |
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2022
- 2022-11-30 CN CN202223206362.5U patent/CN218849308U/en active Active
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