CN109470976B - Grounding wire device and state detection method thereof - Google Patents
Grounding wire device and state detection method thereof Download PDFInfo
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- CN109470976B CN109470976B CN201811332885.XA CN201811332885A CN109470976B CN 109470976 B CN109470976 B CN 109470976B CN 201811332885 A CN201811332885 A CN 201811332885A CN 109470976 B CN109470976 B CN 109470976B
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- 238000001514 detection method Methods 0.000 title claims abstract description 168
- 239000004020 conductor Substances 0.000 claims abstract description 77
- 239000000523 sample Substances 0.000 claims description 22
- 230000005283 ground state Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012212 insulator Substances 0.000 abstract description 8
- 239000000615 nonconductor Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 9
- 230000006378 damage Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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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
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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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
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
- H01R11/15—Hook in the form of a screw clamp
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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
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention provides a grounding wire device and a state detection method thereof. The grounding wire device is provided with a state detection circuit, and the state detection circuit comprises a wire end clamp, a grounding cable, a grounding end clamp, a ground wire state detection device, a detection cable and a detection assembly which are electrically connected in sequence; when the circuit is not grounded, the line terminal clamp and the detection assembly are arranged in an insulating way; when the grounding conductor is grounded, the conductor to be grounded is in interference connection with the line terminal clamp and the detection assembly respectively, so that the line terminal clamp and the detection assembly are in conductive connection, and the state detection circuit forms a conductive state detection loop. The grounding wire device can detect whether the grounding wire device is hung on a conductor or an insulator, can very simply identify whether the hanging position is in good contact with the grounding wire device, can prevent false situation of 'walking idle stroke' when the grounding wire device is hung on the insulator of a non-conductor, has stable and reliable structure, and is not easy to have potential safety hazard.
Description
Technical Field
The invention relates to the technical field of grounding wires, in particular to a grounding wire device and a state detection method thereof.
Background
As the safety appliance for power production, the grounding wire has the advantages of low cost, simple and reliable principle, convenience in use and operation and the like, is widely applied to maintenance operation of power equipment, performs grounding protection on maintenance equipment or circuits, and prevents personnel injury and equipment damage caused by accidental incoming calls.
However, in view of portability and temporary property of the grounding wire, manual intervention is required for the hanging and dismantling operations, and the situation of missed hanging or missed dismantling of the grounding wire is easy to occur, so that serious electric safety production accidents such as personal injury and equipment destruction are caused. In view of this, the prevention or the prevention of the occurrence of the above-mentioned illegal accidents by technical means is very important for the safety production and the guarantee of electric power.
The key point of preventing or stopping the occurrence of the illegal situation is to improve the reliability of the acquisition of the hanging/dismantling state of the grounding wire. According to the hanging/dismantling state of the grounding wire and the error prevention logic, the microcomputer error prevention locking technology means is used for preventing the grounding wire from being missed to hang or be missed to dismantle, so that part of grounding wire misoperation accidents can be prevented.
However, the safety management of the existing ground wire focuses on the hanging/detaching action itself of the ground wire, that is, detecting and identifying whether there is a ground wire hanging/detaching action, rather than the reliability of the ground wire hanging/detaching operation, particularly, ensuring reliable conduction connection between the service equipment or line and the ground terminal when the ground wire is hung.
At present, the hanging/dismantling state of the grounding wire is collected, a mechanical touch switch is usually adopted for identification, a micro switch is arranged at the hanging contact position of the grounding wire hook, and two contact points of the micro switch are conducted to form a detection loop. When the grounding wire is hung on a conductor to be grounded, the hook gravity or spring force triggers the micro switch to conduct the change state so as to judge that the grounding wire is in the hanging state; and if the microswitch is in the opposite state, judging that the grounding wire is in the dismantling state. However, this state acquisition method has several drawbacks:
(1) Only the connection action of the grounding wire can be identified, and whether the hook is well conducted with maintenance equipment or a circuit (a conductor needs to be grounded) cannot be detected.
(2) The operation recognition judgment of the micro switch cannot recognize whether the ground wire is a conductor or not, and even if the ground wire is attached to the insulator, the ground wire is erroneously judged to be attached in place.
(3) When the grounding wire is hung, one end of the grounding wire is well conducted with maintenance equipment or a circuit (a conductor to be grounded), and the other end of the grounding wire is well conducted with a grounding end (such as a grounding pile). The conduction connection of any end of the grounding wire has problems, and casualties and equipment damage can occur, so that electric safety production accidents are caused. The existing ground wire state detection technical means cannot guarantee reliable conduction state monitoring of two ends of a ground wire.
Disclosure of Invention
The invention mainly aims to provide a grounding wire device and a state detection method thereof, which are used for solving the technical problems of the existing grounding wire device.
In order to achieve the above object, according to one aspect of the present invention, there is provided a ground wire device provided with a state detection circuit including a wire end clip, a ground cable, a ground end clip, a ground wire state detection device, a detection cable, and a detection assembly electrically connected in this order; when the circuit is not grounded, the line terminal clamp and the detection assembly are arranged in an insulating way; when the grounding conductor is grounded, the conductor to be grounded is in interference connection with the line terminal clamp and the detection assembly respectively, so that the line terminal clamp and the detection assembly are in conductive connection, and the state detection circuit forms a conductive state detection loop.
Further, when the circuit is grounded, the conductor to be grounded serves as a conducting connecting piece to conduct the line terminal clamp and the detection component in a bridging mode.
Further, the conducting surface of the conductor to be grounded can be electrically connected with the contact surface of the line terminal clamp, and the detection assembly faces one end of the conductor to be grounded and can be electrically connected with the conducting surface of the conductor to be grounded.
Further, when the grounding is performed, the conductor to be grounded is used as a conducting driving piece, and the driving line end wire clamp and the detection component are directly conducted.
Further, the conductor to be grounded is in abutting connection with the detection assembly, so that the detection assembly acts, and the line terminal clamp is in conductive connection with the detection assembly.
Further, the detection assembly comprises a detection probe and an elastic element, wherein the detection probe is telescopically arranged on the line terminal clamp through the elastic element and is electrically connected with the detection cable.
Further, a mounting hole is formed in the line end wire clamp and used for accommodating the detection assembly; one end of the detection cable penetrates into the mounting hole and is electrically connected with the detection assembly; one end of the detection component penetrates out of the mounting hole and is in abutting connection with the conductor to be grounded when being grounded.
Further, an insulating element is arranged in the mounting hole, and the detection assembly is wrapped in the insulating element in an insulating mode.
Further, including the ground connection action bars, line end line clamp installs on the ground connection action bars, and line end line clamp includes couple portion, and couple portion is equipped with detection component.
Further, the hook part comprises a clamping block and an adjusting rod, the clamping block is arranged at the end part of the adjusting rod, and the adjusting rod is in threaded connection with the hook part and drives the clamping block to move along the direction approaching or far away from the detection assembly.
Further, the ground wire state detection device is arranged on the ground wire clamp, and the ground wire clamp is detachably arranged on the ground wire pile.
According to another aspect of the present invention, there is provided a state detection method of a ground wire device, the ground wire device being the above-described ground wire device, the method including: a grounding step: fixedly connecting a line end wire clamp to a conductor to be grounded, so that the line end wire clamp is connected with the detection assembly in a conducting way; fixedly connecting a grounding end wire clamp to a ground wire pile; the detection step comprises: the ground wire state detection device acquires a conduction signal of the state detection circuit; the processing steps are as follows: and judging whether the grounding wire device is reliably connected with the conductor to be grounded according to the conduction signal of the state detection circuit to form grounding state information.
Further, the method further comprises the step of transmitting: the ground wire state detection device transmits ground wire state information to the ground wire management system.
Further, the ground wire state detection device transmits the ground wire state information to the computer key, and the computer key transmits the ground wire state information back to the ground wire management system.
Further, the computer key is in wireless communication connection with the ground wire state detection device.
By applying the technical scheme of the invention, as the state detection loop is arranged in the grounding wire device, when the grounding wire device is grounded, if the conductor to be grounded is in abutting connection with the wire end clamp and the detection component respectively, so that the wire end clamp and the detection component are in conductive connection, the grounding wire device can detect that the grounding wire device and the conductor to be grounded are hung in place, and if the state detection loop which is in conductive connection cannot be formed by the state detection loop, the grounding wire device and the conductor to be grounded are not hung in place.
In the state detection method of the grounding wire device, the grounding wire state detection device can generate corresponding grounding state information according to the conduction signal of the state detection circuit, and the grounding state information is transmitted to the grounding wire management system or transmitted to the computer key, and then transmitted back to the grounding wire management system by the computer key.
The grounding wire device can detect whether the grounding wire device is hung on a conductor or an insulator, can very simply identify whether the hanging position is in good contact with the grounding wire device, can prevent false situation of 'walking idle stroke' when the wiring grounding wire device is hung on the non-conductor insulator, and can be seen that the grounding wire device is more consistent with the actual grounding application situation, has stable and reliable structure and is not easy to have potential safety hazard.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 schematically shows a front view of a line end clip of a grounding wire arrangement of the invention without contact with a conductor to be grounded;
fig. 2 schematically shows a line end clip of the grounding wire arrangement of the invention with a conductor to be grounded;
fig. 3 schematically illustrates a front view, partly in section, of a grounding rod of a first embodiment of the invention;
fig. 4 schematically shows an enlarged view of region a in fig. 3;
fig. 5 schematically illustrates a front view, partly in section, of a grounding bar according to a second embodiment of the invention;
fig. 6 schematically shows an enlarged view of region B in fig. 5;
fig. 7 is a view schematically showing a state in which the ground rod in the first embodiment of the present invention is in use;
fig. 8 is a schematic diagram showing a connection relationship between the ground wire device of the present invention and other structures when the ground wire device performs a grounding operation.
Wherein the above figures include the following reference numerals:
10. a line terminal clamp; 11. a contact surface; 12. a mounting hole; 13. a ground terminal clamp; 14. a ground cable; 20. a detection assembly; 21. detecting a probe; 22. an elastic element; 30. an insulating member; 40. detecting a cable; 50. a ground operating lever; 51. a hook part; 52. a clamping block; 53. an adjusting rod; 60. a conductor to be grounded; 61. a conduction surface; 70. ground wire state detecting means; 80. and (5) a ground wire pile.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 8, according to an embodiment of the present invention, there is provided a ground wire apparatus, it should be noted that the service equipment/line in fig. 8 includes a conductor 60 to be grounded.
As shown in fig. 1 to 4, the ground line device in the present embodiment is provided with a state detection circuit. Specifically, the state detection circuit includes a line terminal pin 10, a ground cable 14, a ground terminal pin 13, a ground state detection device 70, a detection cable 40, and a detection assembly 20, which are electrically connected in this order. When not grounded, the line terminal clamp 10 is arranged in an insulating manner with the detection assembly 20; when the grounding conductor 60 is grounded, the grounding conductor is in abutting connection with the line terminal clamp 10 and the detection assembly 20 respectively, so that the line terminal clamp 10 and the detection assembly 20 are in conductive connection, and at the moment, the state detection circuit forms a conductive state detection loop.
Since the ground wire device in this embodiment is provided with the state detection circuit, when the ground wire device of the present invention is grounded, if the to-be-grounded conductor 60 is in abutting connection with the line terminal clamp 10 and the detection component 20, respectively, so that the line terminal clamp 10 and the detection component 20 are in conductive connection, the ground wire device can detect that the ground wire device is in contact with the to-be-grounded conductor 6060, and if the state detection circuit cannot form the conductive state detection circuit, it is indicated that the ground wire device is not in contact with the to-be-grounded conductor 6060. By the action of the ground state detection means 70, a corresponding state signal can be generated and transmitted out through the ground state detection means 70.
The grounding wire device in the embodiment can detect whether the grounding wire device is hung on a conductor or an insulator, can very simply identify whether the hanging position is in good contact with the grounding wire device, can prevent false situation of 'walking idle stroke' when the wiring grounding device is hung on the non-conductor insulator, and can be seen that the grounding wire device is more consistent with the actual grounding application situation, has stable and reliable structure and is not easy to have potential safety hazard.
When the grounding wire device is grounded, the to-be-grounded conductor 60 serves as a conducting connecting piece to bridge and conduct the wire terminal clamp 10 and the detection assembly 20. In other words, the conductor to be grounded 60 serves as a conductor bridging directly between the line terminal pin 10 and the sensing assembly 20.
Specifically, the to-be-grounded conductor 60 in this embodiment has a conducting surface 61, the line terminal clamp 10 has a contact surface 11, and in the process of grounding the line, the conducting surface 61 of the to-be-grounded conductor 60 can press the end of the detection component 20, that is, the conducting surface 61 of the to-be-grounded conductor 60 can be electrically connected with the contact surface 11 of the line terminal clamp 10, and the detection component 20 faces one end of the to-be-grounded conductor 60 and can be electrically connected with the conducting surface 61 of the to-be-grounded conductor 60. The conducting surface 61 in the present invention may be a plane surface, or may be a cambered surface or other regular or irregular contact surface. When the grounding is performed, if the conducting surface 61 is in contact with the contact surface 11 to realize electrical conduction, the contact surface 11 is conducted with the end part of the detection assembly 20, and the grounding is illustrated in place; if the conductive surface 61 is not electrically conductive with the contact surface 11, it is indicated that the ground is not in place.
Referring to fig. 7, when the ground wire device is grounded, the ground wire device is hung at the hanging point of the to-be-grounded wire conductor 6060, and at this time, the to-be-grounded wire conductor 60 is used as a conducting driving member to conduct the wire end clamp 10 and the detection assembly 20 automatically, so as to realize the grounding action, and meanwhile, a corresponding state signal is generated through the state detection circuit and transmitted through the ground wire state detection device 70. In other words, when the line terminal clamp 10 is fixedly connected with the conductor to be grounded 60, the conductor to be grounded 60 drives the detection assembly 20 to act, so that the detection assembly 20 abuts against the line terminal clamp 10 to realize electrical connection.
Referring to fig. 3 to 7, when the grounding wire device is grounded, the grounding wire device is hung at a hanging node of the to-be-grounded wire conductor 6060, at this time, the to-be-grounded wire conductor 60 is in contact with the detecting component 20, so that the detecting component 20 acts, the wire end clamp 10 is in conductive connection with the detecting component 20, so that the wire end clamp 10 is in conductive connection with the detecting component 20, on one hand, the grounding action of the grounding wire device is realized, and meanwhile, the wire end clamp 10 is in conductive connection with the detecting component 20, and can also form a conductive state detecting loop, and send out a state signal and transmit the state signal through the ground wire state detecting device 70.
Referring to fig. 1, 2 and 4, the detection assembly 20 in the present embodiment includes a detection probe 21, and the probe body of the detection probe 21 is a conductor, so as to be connected to the conductor 60 to be grounded in a conductive manner to form a conductive state detection circuit. When installed, the detection probe 21 is insulated and embedded on the line terminal clamp 10, and is electrically connected with the detection cable 40. In actual grounding, the detection probe 21 and the line terminal clamp 10 can be conducted only when the conductor 60 to be grounded is conducted with the contact surface 11 on the line terminal clamp 10, so that a conductive state detection loop is formed conveniently.
Specifically, the detecting assembly 20 in this embodiment further includes an elastic element 22, and the detecting probe 21 is telescopically mounted on the line terminal wire clamp 10 by the elastic element 22, so that the detecting probe 21 is reset after being compressed by the conductor 60 to be grounded by the action of the elastic element 22. When in installation, the line terminal clamp 10 is provided with an installation hole 12 for accommodating the detection assembly 20; one end of the detection cable 40 penetrates into the mounting hole 12 and is electrically connected with the detection assembly 20; one end of the detecting component 20 passes through the mounting hole 12 and is in interference connection with the conductor 60 to be grounded when being grounded.
The invention installs the flexible detecting probe 21 with spring insulated from line terminal wire clamp 10 on line terminal wire clamp 10, when the contact surface 11 of line terminal wire clamp 10 is separated from the conducting surface 61 of the conductor 60 to be grounded, i.e. not contacted, the detecting probe 21 is not electrically conducted with the line terminal wire clamp 10 itself installed; when the conductor 60 to be grounded contacts the line terminal clamp 10, the contact surface 11 contacts the detection probe 21 at the same time as the conduction surface 61 contacts, and at this time, since the conduction surface 61 is a conductor, the conduction surface 61 electrically conducts both the detection probe 21 and the contact surface 11 of the line terminal clamp 10 to which it is attached. Thus, by means of such a simple principle design, it is possible to detect whether two specific conductors are in a reliable contact connection or a disconnection.
Preferably, the elastic element 22 in the present embodiment is a spring, however, in other embodiments of the present invention, the elastic element 22 may be configured as an elastic rubber pad or a rubber ring, and other modifications within the scope of the present invention are possible.
An insulating element 30 is arranged in the mounting hole 12, and the detection assembly 20 is wrapped in the insulating element 30 in an insulating manner. The insulating element 30 is installed in the installation hole 12 and sleeved on the periphery of the detection assembly 20, so that the insulativity of the detection probe 21 and the line terminal clamp 10 is ensured, the detection probe 21 and the line terminal clamp 10 can be conducted only when the conductor 60 to be grounded is conducted with the contact surface 11 on the line terminal clamp 10, and the detection probe 21 can conveniently send a detection signal.
Referring to fig. 3 and 4, in the first embodiment of the present invention, the ground wire apparatus further includes a ground lever 50, the line end clip 10 is mounted on the ground lever 50, and the line end clip 10 includes a hooking portion 51, the hooking portion 51 is provided with the above-described detecting member 20, and an inner surface of the hooking portion 51 forms the contact surface 11. Referring to fig. 3 and 4, in a preferred embodiment of the present invention, the hooking portion 51 has an inverted U-shaped structure.
Referring to fig. 5 and 6, in the second embodiment of the present invention, the structure of the ground wire device is substantially the same as that of the first embodiment, except that the hooking portion 51 in the present embodiment has a C-shaped structure.
Referring to fig. 5 to 6, in order to facilitate clamping the conductor 60 to be grounded, the hook portion 51 in this embodiment includes a clamping block 52 and an adjusting lever 53, the clamping block 52 is disposed at an end of the adjusting lever 53, and the adjusting lever 53 is screwed onto the hook portion 51 and drives the clamping block 52 to move in a direction approaching or separating from the detection assembly 20. In the actual grounding wire process, the adjusting rod 53 is screwed to drive the clamping block 52 to move towards or away from the ground wire hanging state detecting device, so that the conductor 60 to be grounded is clamped or released conveniently.
As shown in fig. 1, 2 and 7, the ground state detection device 70 is disposed on the ground terminal clamp 13, and the ground terminal clamp 13 is detachably disposed on the ground post 80. The ground wire state detecting device 70 is connected to the detection probe 21 via the detection cable 40.
Referring again to fig. 1 to 8, according to another aspect of the present invention, there is provided a method for detecting a state of a ground wire device, where the ground wire device in this embodiment is the ground wire device in the above embodiment, and the method includes a grounding step, a detecting step, and a processing step.
In the grounding step, the line end clamp 10 is fixedly connected to the conductor 60 to be grounded of the maintenance equipment/line, so that the line end clamp 10 and the detection assembly 20 are in conductive connection; then fixedly connecting the grounding end wire clamp 13 to the ground wire pile 80; in the detection step, the ground state detection device 70 acquires the on signal of the state detection circuit; in the processing step, the ground state detecting device 70 determines whether the ground device is reliably connected to the conductor 60 to be grounded according to the on signal of the state detecting circuit, so as to form ground state information.
The ground wire device in the present invention further includes a transmission step of transmitting the ground state information to the ground wire management system through the ground wire state detection device 70. Specifically, the ground state detection device 70 transmits the ground state information to the computer key, which transmits the ground state information back to the ground management system.
Preferably, the computer key in this embodiment is connected to the ground state detecting device 70 in a wireless communication manner. Of course, in other embodiments of the present invention, the computer key and the ground state detecting device 70 may be connected by a wired communication, and any other modification is within the scope of the present invention.
The above-mentioned ground wire device is used for the detection of the hanging/dismantling state of the temporary ground wire, the conductor to be grounded 60 is regarded as an overhaul equipment/line conductor to be overhauled, the line end wire clamp 10 is connected to the ground wire pile 80 as a ground wire detection cable, the contact surface 11 is regarded as a contact surface of the temporary ground wire device, and the telescopic detection assembly 20 is arranged on the line end wire clamp 10. When the grounding wire device is not hung on the conductor 60 to be grounded, the detection probe 21 is not conducted with the line terminal wire clamp 10, and when the grounding wire device is hung on the conductor 60 to be grounded, the conductor 60 to be grounded conducts the detection probe 21 with the grounding wire device, so that a conducting state detection loop can be formed, and whether the grounding wire is hung on the conductor to be grounded or not can be judged. If the status detection circuit is non-conductive, it may be determined that the temporary ground wire means has not been hung up.
In the state detection method of the grounding wire device, the grounding wire state detection device can generate corresponding grounding state information according to the conduction signal of the state detection circuit, and the grounding state information is transmitted to the grounding wire management system or transmitted to the computer key, and then transmitted back to the grounding wire management system by the computer key.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the grounding wire device and the state detection method thereof are completely different from the working principle of the mechanical micro switch in the background technology, and can automatically identify the grounding wire hanging/dismantling state. The grounding wire device and the state detection method thereof can very simply identify whether the hanging position is in good contact with the grounding wire device or not, and can prevent false situation of 'walking idle stroke' of the hook hanging on the insulator of the non-conductor, so that the method is more consistent with the practical grounding application situation.
That is, the grounding wire device and the state detection method thereof have the advantages of very simple principle, very few required devices, reliable and easy realization of circuits and low cost. If the state detection circuit of the ground wire device and the state detection method thereof is in a non-conductive state, it can be determined that the ground wire device is not hooked on or not hooked well with a conductor to be grounded.
The invention can prevent the ground wire hook from being artificially falsified and connected to the non-conductor, and if the hook is hooked to the non-conductor, the detection loop can not be conducted.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. The grounding wire device is characterized by comprising a state detection circuit, wherein the state detection circuit comprises a wire end clamp (10), a grounding cable (14), a grounding end wire clamp (13), a ground wire state detection device (70), a detection cable (40) and a detection assembly (20) which are electrically connected in sequence; when the circuit is not grounded, the circuit terminal clamp (10) and the detection assembly (20) are arranged in an insulating way; when in grounding, the conductor (60) to be grounded is in abutting connection with the line terminal clamp (10) and the detection assembly (20) respectively, so that the line terminal clamp (10) is in conductive connection with the detection assembly (20), and the state detection circuit forms a conductive state detection loop; when in grounding, the conductor (60) to be grounded is used as a conducting connecting piece to conduct the line terminal clamp (10) and the detection assembly (20) in a bridging mode, the detection assembly (20) comprises a detection probe (21) and an elastic element (22), and the detection probe (21) is installed on the line terminal clamp (10) in a telescopic mode through the elastic element (22) and is electrically connected with the detection cable (40).
2. The ground wire arrangement according to claim 1, characterized in that the conducting surface (61) of the conductor (60) to be grounded is electrically connectable to the contact surface (11) of the line end clamp (10), and that the detection assembly (20) is electrically connectable to the conducting surface (61) of the conductor (60) to be grounded towards one end of the conductor (60) to be grounded.
3. The ground wire assembly of claim 1, wherein the conductor to be grounded (60) acts as a conductive driver to directly conduct the line terminal clamp (10) and the sensing assembly (20) when grounded.
4. The ground wire arrangement according to claim 1, characterized in that the conductor (60) to be grounded is connected to the detection assembly (20) in a abutting manner, so that the detection assembly (20) is operated and the wire end clamp (10) is connected in conductive connection with the detection assembly (20).
5. The ground wire arrangement according to claim 1, characterized in that the wire end clamp (10) is provided with a mounting hole (12) for receiving a detection assembly (20); one end of the detection cable (40) penetrates into the mounting hole (12) and is electrically connected with the detection assembly (20); one end of the detection component (20) penetrates out of the mounting hole (12) and is in abutting connection with the conductor (60) to be grounded when being grounded.
6. The ground wire assembly of claim 5, wherein an insulating member (30) is disposed in the mounting hole (12), and the sensing assembly (20) is insulated and encased in the insulating member (30).
7. The ground wire assembly of any one of claims 1-6, comprising a ground lever (50), the wire end clip (10) being mounted on the ground lever (50), the wire end clip (10) comprising a hooking portion (51), the hooking portion (51) being provided with a detection assembly (20).
8. The ground wire device according to claim 7, characterized in that the hooking portion (51) includes a clamping block (52) and an adjusting rod (53), the clamping block (52) is disposed at an end of the adjusting rod (53), and the adjusting rod (53) is screwed on the hooking portion (51) and drives the clamping block (52) to move in a direction approaching or separating from the detecting assembly (20).
9. The ground wire device according to claim 7, characterized in that the ground wire state detection means (70) is provided on the ground wire clamp (13), and the ground wire clamp (13) is detachably provided on the ground wire stub (80).
10. A method of detecting a state of a ground wire device, characterized in that the ground wire device is a ground wire device according to any one of claims 1 to 9, the method comprising:
a grounding step: fixedly connecting the line terminal clamp (10) to a conductor (60) to be grounded, so that the line terminal clamp (10) is in conductive connection with the detection assembly (20); fixedly connecting a grounding end wire clamp (13) to a ground wire pile (80);
the detection step comprises: the ground wire state detection device (70) acquires a conduction signal of the state detection circuit;
the processing steps are as follows: and judging whether the grounding wire device is reliably connected with the conductor (60) to be grounded according to the conduction signal of the state detection circuit to form grounding state information.
11. The state detection method according to claim 10, further comprising a transmission step of: the ground state detection means (70) transmits the ground state information to the ground management system.
12. The status detection method according to claim 10 or 11, wherein the ground status detection means (70) transmits the ground status information to a computer key, and the computer key transmits the ground status information back to the ground management system.
13. The method of claim 12, wherein the computer key is in wireless communication with the ground state detection device (70).
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| CN201811332885.XA CN109470976B (en) | 2018-11-09 | 2018-11-09 | Grounding wire device and state detection method thereof |
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| CN109917712B (en) * | 2019-03-26 | 2023-09-19 | 国网江苏省电力有限公司扬州供电分公司 | Distribution network grounding wire online whole-process management and control system and method based on Internet of things |
| CN110673061B (en) * | 2019-09-26 | 2022-08-26 | 国网山东省电力公司聊城供电公司 | Composite portable short circuit grounding wire with self-detection function |
| CN112285614A (en) * | 2020-10-15 | 2021-01-29 | 珠海优特电力科技股份有限公司 | Method, device and system for monitoring grounding hanging position and state |
| CN112230164B (en) * | 2020-10-23 | 2024-04-02 | 安徽森度科技有限公司 | Self-checking method of intelligent grounding device |
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| CN114361826A (en) * | 2021-10-07 | 2022-04-15 | 国网山东省电力公司潍坊供电公司 | Grounding device, product and method based on logic locking |
| CN114114073A (en) * | 2021-11-25 | 2022-03-01 | 国网四川省电力公司达州供电公司 | Grounding wire device for power grid maintenance and grounding condition monitoring method thereof |
| CN114419870B (en) * | 2022-03-31 | 2022-07-15 | 长园共创电力安全技术股份有限公司 | Communication method of sensing acquisition system based on low-power-consumption wireless communication |
| CN115377711A (en) * | 2022-07-11 | 2022-11-22 | 无锡广盈集团有限公司 | Pressure detection type grounding wire pressing mechanism capable of monitoring wire hanging state |
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