CN112003036A - Resistance type arc extinction grounding device and grounding method - Google Patents
Resistance type arc extinction grounding device and grounding method Download PDFInfo
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- CN112003036A CN112003036A CN202010626187.1A CN202010626187A CN112003036A CN 112003036 A CN112003036 A CN 112003036A CN 202010626187 A CN202010626187 A CN 202010626187A CN 112003036 A CN112003036 A CN 112003036A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The invention provides a resistance type arc extinction grounding device and a grounding method. The device and the method are characterized in that a plurality of mutually independent series resistors are arranged in an insulating shell, and after a grounding lead is arranged, a remote controller is adopted to control a motor to drive a lead screw to rotate, so that a sliding block penetrating through the lead screw drives a conducting strip to move on the surface of a resistor, and the resistance value of the series resistors is changed, and the current of a live loop between an outgoing line end electrode and an incoming line end electrode is changed. According to the grounding device and the grounding method, when the maintainer hangs the temporary grounding wire on the power failure maintenance lead, the conducting plate is firstly positioned on the resistor of the outlet end electrode, and the loop resistance value is the largest, so that the arc current is effectively inhibited, the arc energy is greatly reduced, the wire clamp and the lead are prevented from being ablated, and the safety of the maintainer and equipment is fully guaranteed.
Description
Technical Field
The invention relates to the field of operation and maintenance of power transmission lines, in particular to a resistance type arc extinction grounding device and a grounding method.
Background
Super, extra-high voltage transmission line usually has the condition of erectting with tower multiloop and sharing corridor or alternately crossing over the erections with other voltage class circuit, when some circuit live working and some circuit power failure overhauls, exists electromagnetic coupling between the transmission line and can produce induced voltage on overhauing the circuit, also can produce induced current when articulating earthing for the earth clamp takes place to draw an arc easily when articulating earthing for the earth clamp, leads to wire and fastener ablation, endangers maintainer safety.
Therefore, a grounding device is needed to cooperate with grounding of a grounding wire to suppress arc current generated during power failure maintenance of part of lines in a power transmission line, so as to avoid ablation of wire clamps and wires and protect the safety of maintenance personnel and equipment.
Disclosure of Invention
In order to solve the problems that in the prior art, when part of lines in a power transmission line are overhauled due to power failure, induced voltage is easy to generate, so that induced current is generated when an overhauler articulates a temporary grounding wire, a lead and a wire clamp are ablated, and the safety of the overhauler is damaged, the invention provides a resistance type arc extinction grounding device, which comprises:
an insulating housing (10) for accommodating the resistor (20), the transmission unit (30) and the conductive sheet (40);
the resistors (20) are connected in series, and one ends of the resistors penetrate through the insulating shell (10) and then are connected with the wire inlet end electrode (50);
the transmission unit (30) is positioned in the insulating shell (10), one end of the transmission unit is connected with the conducting strip (40), the other end of the transmission unit is connected with the outgoing line end electrode (60), and the outgoing line end electrode (60), the transmission unit (30), the conducting strip (40), the resistor (20) and the incoming line end electrode (50) are communicated to form a charged loop;
the conducting plate (40) is positioned in the insulating shell (10), one end of the conducting plate is in contact with the surface of the resistor (20), the other end of the conducting plate is connected with the transmission unit (30), and the conducting plate moves on the surface of the resistor (20) through the movement of the transmission unit (30);
the incoming line terminal electrode (50) is positioned outside the insulating shell (10), one end of the incoming line terminal electrode is connected with the resistor (20) closest to the incoming line terminal electrode, and the other end of the incoming line terminal electrode is connected with the first grounding lead;
and the outlet end electrode (60) is positioned outside the insulating shell (10), one end of the outlet end electrode is connected with the transmission unit (30), and the other end of the outlet end electrode is used for being connected with a second grounding wire.
Further, the transmission unit (30) comprises:
a pair of metal rings (301) fixed on the inner wall of the insulating housing (10) for placing the lead screw (302);
the motor (302) is coaxially connected with the screw rod (303) and is positioned at one end of the screw rod (303);
the screw rod (303) is placed in the pair of metal rings (301) and is driven to rotate by the motor (302);
the sliding block (304) penetrates through the screw rod (303), is coaxial with the screw rod (303), is connected with the conducting strip (40) at the bottom, and is driven to move back and forth between the pair of metal rings (301) through the rotation of the screw rod (303);
and one end of the spring cable (305) is connected with the sliding block (304), and the other end of the spring cable is connected with the wire outlet end electrode (60).
Further, the device also comprises a power supply (80) which is positioned inside the insulating shell (10) and is connected with the motor (302) and used for supplying electric energy to the motor (302).
Further, the insulating housing (10) is of a transparent design.
Furthermore, a rod (70) fixed through a bolt is arranged on the inner wall of the insulating shell (10), and the spring cable (305) is wound on the rod (70).
Further, the number of the resistors is 5, the resistance value of each resistor is 20k Ω, and the rated power is 50W.
Further, the length of the conductive sheet (40) is greater than the length of a single resistor (20) and less than the sum of the lengths of two resistors (20).
Further, the conductive sheet (40) is a copper elastic sheet.
Furthermore, the end that inlet wire end electrode (50), outlet terminal electrode (60) and earth conductor are connected is provided with 1 round hole respectively, through the round hole realizes being connected with earth conductor.
According to another aspect of the invention, the invention provides a method for grounding by using the resistive arc-extinguishing grounding device, which comprises the following steps:
a motor (302) in the resistance type arc extinction grounding device (100) is controlled by a remote controller to drive a screw rod (303) to rotate, so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) closest to an outlet end electrode (60);
fixedly connecting the second grounding wire (130) with the outlet end electrode (60), and then locking the second grounding wire with the iron tower (160);
fixedly connecting a first grounding wire (140) with a wire inlet end electrode (50), and then fixedly connecting the first grounding wire with a wire clamp (150) by using a bolt;
connecting the wire clamp (150) with a wire (120) to be overhauled by applying the silk rope (110), and pulling the silk rope (110) to confirm that the wire clamp (150) is well locked;
a controller is adopted to control a motor (302) in the resistance type arc extinction grounding device to drive a screw rod (303) to rotate in an insulating shell (10), so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) which is closest to an inlet wire terminal electrode (50).
According to the technical scheme, the resistance type arc extinction grounding device and the grounding method, the plurality of mutually independent series resistors are installed in the insulating shell, and after the grounding lead is installed, the remote controller is adopted to control the motor to drive the screw rod to rotate, so that the sliding block penetrating through the screw rod drives the conducting strip to move on the surface of the resistor, the resistance value of the series resistors is changed, and the current of a live loop between the outgoing line end electrode and the incoming line end electrode is changed. When a maintainer hangs a temporary grounding wire on a wire for power failure maintenance, the grounding device and the grounding method firstly enable the conducting plate to be positioned on the resistor of the outlet end electrode, the loop resistance value is the largest, so that the arc current is effectively inhibited, the arc energy is greatly reduced, the wire clamp and the wire are prevented from being ablated, after the temporary grounding wire end wire clamp is perfectly connected with a power failure circuit, the lead screw is driven to rotate by the control motor, the conducting plate is moved to the resistor nearest to the inlet end electrode, the loop resistance value is adjusted to be 0, the short circuit grounding function of the temporary grounding wire is recovered, and the safety of the maintainer and equipment is fully guaranteed.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
fig. 1 is a schematic structural diagram of a resistive arc-extinguishing grounding device according to a preferred embodiment of the invention;
FIG. 2 is a schematic diagram of arc extinction using a resistive arc extinction grounding device according to a preferred embodiment of the present invention;
fig. 3 is a flow chart of a grounding method using the resistive arc extinction grounding device according to a preferred embodiment of the invention;
fig. 4 is a schematic diagram of a resistive arc-extinguishing grounding device according to a preferred embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including 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. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a schematic structural diagram of a resistive arc-extinguishing grounding device according to a preferred embodiment of the invention. As shown in fig. 1, a resistive arc-extinguishing grounding device 100 according to the present preferred embodiment includes:
an insulating housing (10) for accommodating the resistor (20), the transmission unit (30) and the conductive sheet (40).
And the resistors (20) are connected in series, and one ends of the resistors penetrate through the insulating shell (10) and then are connected with the inlet wire end electrode (50).
The transmission unit (30) is positioned in the insulating shell (10), one end of the transmission unit is connected with the conducting strip (40), the other end of the transmission unit is connected with the outgoing line end electrode (60), and the outgoing line end electrode (60), the transmission unit (30), the conducting strip (40), the resistor (20) and the incoming line end electrode (50) are communicated to form a charged loop;
preferably, the transmission unit (30) comprises:
a pair of metal rings (301) fixed on the inner wall of the insulating housing (10) for placing the lead screw (302);
the motor (302) is coaxially connected with the screw rod (303) and is positioned at one end of the screw rod (303);
the screw rod (303) is placed in the pair of metal rings (301) and is driven to rotate by the motor (302);
the sliding block (304) penetrates through the screw rod (303), is coaxial with the screw rod (303), is connected with the conducting strip (40) at the bottom, and is driven to move back and forth between the pair of metal rings (301) through the rotation of the screw rod (303);
and one end of the spring cable (305) is connected with the sliding block (304), and the other end of the spring cable is connected with the wire outlet end electrode (60).
And the conducting plate (40) is positioned in the insulating shell (10), one end of the conducting plate is in contact with the surface of the resistor (20), the other end of the conducting plate is connected with the transmission unit (30), and the conducting plate moves on the surface of the resistor (20) through the movement of the transmission unit (30).
And the incoming line terminal electrode (50) is positioned outside the insulating shell (10), one end of the incoming line terminal electrode is connected with the resistor (20) closest to the incoming line terminal electrode, and the other end of the incoming line terminal electrode is connected with the first grounding wire.
And the outlet end electrode (60) is positioned outside the insulating shell (10), one end of the outlet end electrode is connected with the transmission unit (30), and the other end of the outlet end electrode is used for being connected with a second grounding wire.
Preferably, the device further comprises a power source (80) located inside the insulating housing (10) and connected to the motor (302) for providing electrical power to the motor (302). The power supply (80) is a rechargeable battery and is electrically connected with the motor (302) to provide electric energy for the motor (302). When the electric energy in the battery is exhausted, the battery can be charged through the external power supply, and the motor (302) is prevented from being incapable of being used due to lack of the electric energy.
Preferably, the insulating housing (10) is of transparent design. When insulating casing (10) were the transparent state, can conveniently observe the slip condition of inside conducting strip (40) to fully guarantee when interim earth conductor initial ground connection, the resistance value is the biggest, and when earth conductor and the wire that has a power failure and overhauls the circuit be connected the back, remote control motor makes conducting strip (40) slide to resistor (20) that are close to inlet wire termination electrode (50).
Preferably, a rod (70) fixed through a bolt is arranged on the inner wall of the insulating shell (10), and the spring cable (305) is wound on the rod (70). The spring cable is wound on the rod (70), so that the spring cable is prevented from being wound together inside the insulating shell (10) and cannot be extended or shortened along with the sliding of the conducting sheet (40). The rod (70) is fixed on the inner wall of the insulating shell (10), and the surface of the spring cable (305) is made of insulating material, so that a live circuit cannot be formed with the spring cable (305), and therefore the rod can be made of conductive material or insulating material.
Preferably, the number of the resistors is 5, the resistance value of each resistor is 20k omega, and the rated power is 50W. The resistor is a high voltage ceramic resistor.
Preferably, the length of the conductive sheet (40) is greater than the length of a single resistor (20) and less than the sum of the lengths of two resistors (20). The length of the conducting strip (40) is larger than that of a single resistor (20), so that the resistance value of the resistor is not infinite when the conducting strip (40) slides, and the length of the conducting strip (40) is smaller than the sum of the lengths of the two resistors (20), so that the resistance value of the resistor is sequentially changed from 100k omega to 80k omega, 60k omega, 40k omega, 20k omega and 0, and the current of a live circuit from the inlet terminal electrode (50) to the outlet terminal electrode (60) is not rapidly increased.
Preferably, the conductive sheet (40) is a copper dome. The conducting strip (40), the screw rod (303) and the sliding block (304) are all made of conducting materials, so that a live loop is formed between the inlet wire end electrode (50) and the outlet wire end electrode (60).
Preferably, the one end that inlet wire end electrode (50), outlet terminal electrode (60) and earth conductor are connected is provided with 1 round hole respectively, through round hole realization and earth conductor's connection.
Fig. 2 is a schematic diagram of arc extinction using a resistive arc extinction grounding device according to a preferred embodiment of the present invention. As shown in figure 2, the initial position of the conducting strip in the resistance type arc extinguishing device (100) is on the resistor far away from the lead of the power failure maintenance circuit, the resistance value is 100k omega, and the induced current of the power failure maintenance circuit is reduced due to the maximum resistance value, so that the arc current level is effectively inhibited, the phenomenon that the wire clamp is stretched to cause the ablation of the lead and the wire clamp and the safety of maintenance personnel is damaged is avoided. After the grounding lead is installed, the conducting strip (40) is slid to the resistor close to the wire inlet end electrode (50), so that the resistance of the electrified loop is 0, and the grounding function is recovered.
Fig. 3 is a flow chart of a grounding method using the resistive arc extinction grounding device according to the preferred embodiment of the invention. As shown in fig. 3, a method 300 for grounding with the resistive arc extinction grounding device (100) according to the present invention in the preferred embodiment begins with step 301.
In step 301, a motor (302) in the resistance arc extinction grounding device (100) is controlled by a remote controller to drive a screw rod (303) to rotate, so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) nearest to an outlet end electrode (60).
In step 302, the second ground wire (130) is fixedly connected to the outlet terminal electrode (60) and then locked to the iron tower (160).
In step 303, the first grounding wire (140) is fixedly connected with the wire inlet end electrode (50), and then fixedly connected with the wire clamp (150) through a bolt.
In step 304, the clamp (150) is connected to the conductor (120) to be overhauled by applying the silk rope (110), and pulling the silk rope (110) confirms that the clamp (150) is well locked.
In step 305, a controller is adopted to control a motor (302) in the resistance type arc extinction grounding device to drive a screw rod (303) to rotate in an insulating shell (10), so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) which is closest to an inlet wire terminal electrode (50).
Fig. 4 is a schematic diagram of a resistive arc-extinguishing grounding device according to a preferred embodiment of the present invention. As shown in fig. 4, the service personnel stand on the cross arm of the iron tower (160), fixedly connect the second grounding wire (130) with the outlet terminal electrode (60), and then lock the second grounding wire with the iron tower (160). Then, the first grounding wire (140) is fixedly connected with the wire inlet end electrode (50) and then fixedly connected with the wire clamp (150) through bolts. Then, the clamp (150) is connected with the lead (120) to be overhauled by applying the silk rope (110), and the silk rope (110) is pulled to confirm that the clamp (150) is well locked. And finally, controlling a motor (302) in the resistance type arc extinction grounding device by using a controller to drive a screw rod (303) to rotate in an insulating shell (10), so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) closest to an inlet wire end electrode (50).
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A resistive arc suppression grounding apparatus, comprising:
an insulating housing (10) for accommodating the resistor (20), the transmission unit (30) and the conductive sheet (40);
the resistors (20) are connected in series, and one ends of the resistors penetrate through the insulating shell (10) and then are connected with the wire inlet end electrode (50);
the transmission unit (30) is positioned in the insulating shell (10), one end of the transmission unit is connected with the conducting strip (40), the other end of the transmission unit is connected with the outgoing line end electrode (60), and the outgoing line end electrode (60), the transmission unit (30), the conducting strip (40), the resistor (20) and the incoming line end electrode (50) are communicated to form a charged loop;
the conducting plate (40) is positioned in the insulating shell (10), one end of the conducting plate is in contact with the surface of the resistor (20), the other end of the conducting plate is connected with the transmission unit (30), and the conducting plate moves on the surface of the resistor (20) through the movement of the transmission unit (30);
the incoming line terminal electrode (50) is positioned outside the insulating shell (10), one end of the incoming line terminal electrode is connected with the resistor (20) closest to the incoming line terminal electrode, and the other end of the incoming line terminal electrode is connected with the first grounding lead;
and the outlet end electrode (60) is positioned outside the insulating shell (10), one end of the outlet end electrode is connected with the transmission unit (30), and the other end of the outlet end electrode is used for being connected with a second grounding wire.
2. The device according to claim 1, characterized in that said transmission unit (30) comprises:
a pair of metal rings (301) fixed on the inner wall of the insulating housing (10) for placing the lead screw (302);
the motor (302) is coaxially connected with the screw rod (303) and is positioned at one end of the screw rod (303);
the screw rod (303) is placed in the pair of metal rings (301) and is driven to rotate by the motor (302);
the sliding block (304) penetrates through the screw rod (303), is coaxial with the screw rod (303), is connected with the conducting strip (40) at the bottom, and is driven to move back and forth between the pair of metal rings (301) through the rotation of the screw rod (303);
and one end of the spring cable (305) is connected with the sliding block (304), and the other end of the spring cable is connected with the wire outlet end electrode (60).
3. The device according to claim 2, further comprising a power source (80) located inside the insulating housing (10) and connected to the motor (302) for providing electrical power to the motor (302).
4. Device according to claim 1, characterized in that the insulating housing (10) is of transparent design.
5. The device according to claim 2, characterized in that a rod (70) fixed by bolts is arranged on the inner wall of the insulating shell (10), and the spring cable (305) is wound on the rod (70).
6. The apparatus of claim 1, wherein the number of resistors is 5, each resistor having a resistance value of 20k Ω and a power rating of 50W.
7. The device according to claim 1, characterized in that the length of the conductive sheet (40) is greater than the length of a single resistor (20) and less than the sum of the lengths of two resistors (20).
8. The device according to claim 1, characterized in that the conductive sheet (40) is a copper dome.
9. The device according to claim 1, wherein the ends of the incoming terminal electrode (50) and the outgoing terminal electrode (60) connected to the ground wire are respectively provided with 1 circular hole, and the connection to the ground wire is realized through the circular holes.
10. A method of grounding using the apparatus of any one of claims 1 to 9, the method comprising:
a motor (302) in the resistance type arc extinction grounding device (100) is controlled by a remote controller to drive a screw rod (303) to rotate, so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) closest to an outlet end electrode (60);
fixedly connecting the second grounding wire (130) with the outlet end electrode (60), and then locking the second grounding wire with the iron tower (160);
fixedly connecting a first grounding wire (140) with a wire inlet end electrode (50), and then fixedly connecting the first grounding wire with a wire clamp (150) by using a bolt;
connecting the wire clamp (150) with a wire (120) to be overhauled by applying the silk rope (110), and pulling the silk rope (110) to confirm that the wire clamp (150) is well locked;
a controller is adopted to control a motor (302) in the resistance type arc extinction grounding device to drive a screw rod (303) to rotate in an insulating shell (10), so that a conducting strip (40) connected with a sliding block (304) slides to a resistor (20) which is closest to an inlet wire terminal electrode (50).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010626187.1A CN112003036A (en) | 2020-07-01 | 2020-07-01 | Resistance type arc extinction grounding device and grounding method |
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| CN202010626187.1A CN112003036A (en) | 2020-07-01 | 2020-07-01 | Resistance type arc extinction grounding device and grounding method |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101884154A (en) * | 2007-12-04 | 2010-11-10 | 大电株式会社 | Power supply device |
| CN101702496A (en) * | 2009-11-27 | 2010-05-05 | 山东电力集团公司超高压公司 | Anti-induced electrical grounding wire device of circuit |
| CN101834043A (en) * | 2010-03-30 | 2010-09-15 | 于洋 | Electromagnetic control slide rheostat |
| CN203503408U (en) * | 2013-09-05 | 2014-03-26 | 广西新未来信息产业股份有限公司 | Resistor |
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| CN108321720A (en) * | 2018-01-30 | 2018-07-24 | 中国电力科学研究院有限公司 | A kind of device and method for preventing earth lead from burning |
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| CN210245195U (en) * | 2019-09-04 | 2020-04-03 | 东莞市时豪电子科技有限公司 | Winding resistor device |
| CN110943425A (en) * | 2019-12-24 | 2020-03-31 | 国网山东省电力公司临沂供电公司 | Lightning arrester for electric power iron tower and use method thereof |
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