CN110231544A - Overhead line electroscopic device - Google Patents

Overhead line electroscopic device Download PDF

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Publication number
CN110231544A
CN110231544A CN201910578288.3A CN201910578288A CN110231544A CN 110231544 A CN110231544 A CN 110231544A CN 201910578288 A CN201910578288 A CN 201910578288A CN 110231544 A CN110231544 A CN 110231544A
Authority
CN
China
Prior art keywords
overhead line
mounting base
lantern ring
electroscopic device
electrical verification
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910578288.3A
Other languages
Chinese (zh)
Inventor
温伟弘
黎洪光
陈文炜
郑欣
姜明凯
彭灵利
周仕杰
吕泉成
高军伟
于博文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangzhou Power Supply Bureau Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Power Supply Bureau Co Ltd filed Critical Guangzhou Power Supply Bureau Co Ltd
Priority to CN201910578288.3A priority Critical patent/CN110231544A/en
Publication of CN110231544A publication Critical patent/CN110231544A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145Indicating the presence of current or voltage
    • G01R19/15Indicating the presence of current
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Cable Installation (AREA)

Abstract

The present invention relates to a kind of overhead line electroscopic devices, including shell and electrical verification module, shell includes induction lantern ring and mounting base, induction lantern ring is set to one end of mounting base, incuding lantern ring has an accommodating through-hole, for accommodating overhead line, incudes and offer the first accommodating space inside lantern ring, the second accommodating space is offered inside mounting base;Electrical verification module includes coil, common mode inductance, voltage regulation unit, rectification unit and lamp plate, coil is set in the first accommodating space, common mode inductance, voltage regulation unit and rectification unit are set in the second accommodating space, and lamp plate is set to the one end of mounting base far from induction lantern ring.Aerial line current is sensed in secondary circuit whether energy accurate judgement overhead line has electric current to flow through, and is not necessarily to external power supply, avoids the insulation fault of overhead line and secondary circuit by above-mentioned overhead line electroscopic device, be can be avoided and is caused the person and equipment injury.And shell effectively improves the service life of overhead line electroscopic device for protecting electrical verification module.

Description

Overhead line electroscopic device
Technical field
The present invention relates to electrical equipment technical fields, more particularly to overhead line electroscopic device.
Background technique
In general, in order to improve power supply reliability, reducing amount when having a power failure when power distribution network carries out upkeep operation, wanting in principle Ask can turn to power must all turn to power.For overhead transmission line, many feeder lines are all using on-pole switch as interconnection switch.It is overhauling Operation terminates, and when restoring former power supply mode, generally requires unlinking between the on-pole switch progress feeder line of contact.Execute-in-place When, switch is first disconnected, then pull open the disconnecting link on switch both sides.But after disconnecting switch, it can not judge whether pull open by electrical verification Disconnecting link (disconnecting link both ends are charged under the operating condition), can only judge whether switch has divided by the state instruction pointer of on-pole switch Then lock carries out the operation for pulling open disconnecting link.But the opening and closing state of on-pole switch indicates dependence on internal machine driving, older The unintelligible erroneous judgement being likely to result in switch state of instruction caused by aging, corrosion, loosening or a variety of causes, such as open Portion is faulty inside the Pass, and after sub-switching operation, instruction is in gate-dividing state, but it is not operating to switch reality, or contact separation is not filled after movement Point, it switchs substantially still on state.Disconnecting link is at this time operated, will result in the accident of on-load broaching tool lock, causes electricity Arc has sizable person and equipment safety hidden danger.Disconnecting link is unable to on-load current practice, and existing electroscope is tested for voltage-type Whether electric appliance can only be examined with voltage on overhead line, and whether can not perceive has electric current, and the electrical verification for not being able to satisfy above-mentioned occasion needs It asks.
Summary of the invention
Based on this, it is necessary to which whether provide one kind and can effectively monitor route has that electric current, safety be higher, long service life Overhead line electroscopic device.
A kind of overhead line electroscopic device, comprising:
Shell, including induction lantern ring and mounting base, the induction lantern ring are set to one end of the mounting base, the induction There is lantern ring an accommodating through-hole to offer the first accommodating space, the installation inside the induction lantern ring for accommodating overhead line Seat is internal to offer the second accommodating space;
Electrical verification module, including coil, common mode inductance, voltage regulation unit, rectification unit and lamp plate, the coil are set to described In first accommodating space, the common mode inductance, the voltage regulation unit and the rectification unit are set to second accommodating space Interior, the lamp plate is set to the one end of the mounting base far from the induction lantern ring.
The induction lantern ring includes fixed part and movable part in one of the embodiments, the fixed part and the peace Dress seat is fixedly connected, and the fixed part is oppositely arranged with the movable part, and is formed between the fixed part and the movable part One end of the accommodating through-hole, one end of the fixed part and the movable part is rotatablely connected, the other end of the fixed part with The other end of the movable part is flexibly connected.
It in one of the embodiments, further include bracket, the bracket is provided with first clamping member, described first clamping member Clamp the mounting base.
The bracket includes fixed plate, the first pulling plate and the second pulling plate, first clamping in one of the embodiments, Part is set in the fixed plate, and first pulling plate offers the first pulling through slot, and described first pulls the extension side of through slot To identical as the extending direction of first pulling plate, described first clamping member is arranged in institute close to one end part of the fixed plate It states in the first pulling through slot;One end of first pulling plate is connect with one end of second pulling plate, second pulling plate it is another One end is fixedly connected with the movable part;First pulling plate is provided with limit elastic component far from one end of second pulling plate, And the telescopic direction of the limit elastic component is identical as the extending direction of first pulling plate, the limit elastic component is close to described One end of first pulling through slot is provided with locating piece, and described first clamping member offers first close to one end of the fixed plate and determines Position hole, the locating piece are arranged in the first positioning hole.
The locating piece has crotch structure in one of the embodiments, and the crotch structure is arranged in described first Positioning hole.
The limit elastic component is provided with fixation far from one end of the first pulling through slot in one of the embodiments, Part, the fixing piece are fixedly connected with first pulling plate.
It in one of the embodiments, further include inspection module, the inspection module is for detecting whether electrical verification module has Faulty, the inspection module and the electrical verification module are electrically connected, and the inspection module is set to second accommodating space Interior, the lamp plate includes the first illuminating module and the second illuminating module, and first illuminating module and the electrical verification module are electrical Connection, second illuminating module and the inspection module are electrically connected.
The mounting base is additionally provided with protective cover in one of the embodiments, and the protective cover is set to the installation One end of the nearly lamp plate is seated against, and is arranged around the periphery of the lamp plate.
The section radius of the protective cover is from one end close to the mounting base to far from institute in one of the embodiments, The direction for stating one end of mounting base is gradually increased.
It in one of the embodiments, further include lampshade, the lampshade is connect with the mounting base, and the lampshade is set to In the protective cover, and it is arranged around the periphery of the lamp plate.
The electrical verification module of above-mentioned overhead line electroscopic device includes coil, common mode inductance, voltage regulation unit and rectification unit, coil It is set in induction lantern ring, induction lantern ring has an accommodating hole, overhead line is set in accommodating hole, when overhead line has electric current When flowing through, it is based on electromagnetic induction principle, coil can generate electromotive force, and electromotive force is alternating current, and common mode inductance is used for exchange Electricity is filtered, and voltage regulation unit has pressure stabilization function, and for protecting electrical verification module, alternating current is converted into direct current by rectification unit Electricity, rectification unit and lamp plate are electrically connected, and direct current provides power supply for lamp plate, when lamp plate issues light, then it represents that monitoring Route has electric current.In this way, aerial line current is sensed secondary circuit by electromagnetic induction principle by above-mentioned overhead line electroscopic device In, so that whether accurate judgement overhead line has electric current to flow through, it is not necessarily to external power supply, can be avoided and cause overhead line and secondary circuit Insulation fault, and be provided with common mode inductance and voltage regulation unit, further increase the detection safety of overhead line electroscopic device, energy Enough avoid the person and equipment injury.Also, shell effectively improves making for overhead line electroscopic device for protecting electrical verification module Use the service life.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the overhead line electroscopic device of an embodiment;
Fig. 2 is partial enlargement diagram at the A of overhead line electroscopic device shown in FIG. 1;
Fig. 3 is the schematic perspective view of the shell of the overhead line electroscopic device of an embodiment;
Fig. 4 is the shell of the overhead line electroscopic device of an embodiment and the perspective exploded view of lamp plate;
Fig. 5 is the schematic perspective view of the bracket of the overhead line electroscopic device of an embodiment;
Fig. 6 is the structural block diagram of the overhead line electroscopic device of an embodiment;
Fig. 7 is the structural block diagram of the electrical verification module of the overhead line electroscopic device of an embodiment;
Fig. 8 is the circuit theory schematic diagram of the overhead line electroscopic device of an embodiment;
Fig. 9 a is that the inspection module of overhead line electroscopic device shown in Fig. 8 detects the circuit theory schematic diagram of electrical verification module;
Fig. 9 b is that the inspection module of overhead line electroscopic device shown in Fig. 8 detects another circuit theory signal of electrical verification module Figure.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more Any and all combinations of relevant listed item.
The present invention relates to a kind of overhead line electroscopic devices, comprising: shell and electrical verification module, the shell include induction lantern ring And mounting base, the induction lantern ring are set to one end of the mounting base, the induction lantern ring has an accommodating through-hole, for holding Overhead line is set, the first accommodating space is offered inside the induction lantern ring, the second accommodating space is offered inside the mounting base; The electrical verification module includes coil, common mode inductance, voltage regulation unit, rectification unit and lamp plate, the first end of the coil with it is described The first input end of common mode inductance is electrically connected, and the second end of the coil and the second input terminal of the common mode inductance electrically connect It connects, the first output end of the common mode inductance and the first input end of the rectification unit are electrically connected, the common mode inductance Second input terminal of second output terminal and the rectification unit is electrically connected, the output end of the rectification unit and lamp plate electricity Property connection, first output end of common mode inductance and second output terminal are also electrically connected with the voltage regulation unit;The coil is set It is placed in first accommodating space, the common mode inductance, the voltage regulation unit and the rectification unit are set to described second In accommodating space, the lamp plate is set to the one end of the mounting base far from the induction lantern ring.
Please refer to Fig. 1 and Fig. 4, a kind of overhead line electroscopic device 10 in one of the embodiments, comprising: shell 300 and Electrical verification module, the shell, which is adopted, to be made from an insulative material, and the shell 300 includes incuding lantern ring 310 and mounting base 320, described Induction lantern ring 310 is set to one end of the mounting base 320, and the induction lantern ring 310 has an accommodating through-hole 311, the appearance Through-hole is set for accommodating overhead line, i.e. overhead line passes through accommodating through-hole, and the first accommodating sky is offered inside the induction lantern ring 310 Between (not shown), offer the second accommodating space (not shown) inside the mounting base 320;The electrical verification module include coil, First input of common mode inductance, voltage regulation unit, rectification unit and lamp plate 400, the first end of the coil and the common mode inductance End is electrically connected, and the second input terminal of the second end of the coil and the common mode inductance is electrically connected, the common mode inductance The first input end of first output end and the rectification unit is electrically connected, the second output terminal of the common mode inductance with it is described whole The second input terminal for flowing unit is electrically connected, and the output end of the rectification unit and the lamp plate are electrically connected, the common mode electricity Feel the first output end and second output terminal to be also electrically connected with the voltage regulation unit;It is empty that the coil is set to first accommodating In, first accommodating space is ring-type, and the coil is air core coil, side wall setting of the coil close to accommodating through-hole, institute It states common mode inductance, the voltage regulation unit and the rectification unit to be set in second accommodating space, the lamp plate 400 is arranged In the one end of the mounting base far from the induction lantern ring.
The electrical verification module of above-mentioned overhead line electroscopic device includes coil, common mode inductance, voltage regulation unit and rectification unit, coil It is set in induction lantern ring, induction lantern ring has an accommodating hole, overhead line is set in accommodating hole, when overhead line has electric current When flowing through, it is based on electromagnetic induction principle, coil can generate electromotive force, and electromotive force is alternating current, and common mode inductance is used for exchange Electricity is filtered, and voltage regulation unit has pressure stabilization function, and for protecting electrical verification module, alternating current is converted into direct current by rectification unit Electricity, rectification unit and lamp plate are electrically connected, and direct current provides power supply for lamp plate, when lamp plate issues light, then it represents that monitoring Route has electric current.In this way, aerial line current is sensed secondary circuit by electromagnetic induction principle by above-mentioned overhead line electroscopic device In, so that whether accurate judgement overhead line has electric current to flow through, it is not necessarily to external power supply, can be avoided and cause overhead line and secondary circuit Insulation fault, and be provided with common mode inductance and voltage regulation unit, further increase the detection safety of overhead line electroscopic device, energy Enough avoid the person and equipment injury.Also, shell effectively improves making for overhead line electroscopic device for protecting electrical verification module Use the service life.
In one of the embodiments, referring to Fig. 3, the section of the accommodating through-hole 311 is circle.In this way, accommodating is logical The shape in hole section is identical as the shape in overhead line section, passes through accommodating through-hole convenient for overhead line.In one of the embodiments, The diameter of the accommodating through hole section is greater than 0.5 centimetre to 1 centimetre of diameter of overhead line section.It is easy in this way, being conducive to coil It senses the electric current that overhead line flows through, generates electromagnetic induction.
Induction lantern ring is passed through for the ease of overhead line, please refers to Fig. 3 and Fig. 4, in one of the embodiments, the induction Lantern ring 310 includes fixed part 312 and movable part 313, and the fixed part 320 is fixedly connected with the mounting base 320, the fixation Portion 312 is oppositely arranged with the movable part 313, and it is logical that the accommodating is formed between the fixed part 312 and the movable part 313 One end of hole 311, one end of the fixed part 312 and the movable part 313 is rotatablely connected, the other end of the fixed part 312 It is flexibly connected with the other end of the movable part 313, i.e., the first end of the described fixed part 312 and the first of the movable part 313 End rotation connection, the second end of the fixed part 312 are abutted with the second end activity of the movable part 313.That is, fixed The first end in portion and the first end of movable part can be rotated, so that the second end of fixed part and the second end of movable part are located remotely from each other, In this way, accommodating through-hole switches to a slot with opening, overhead line can be passed through accommodating through-hole, carry out electrical verification by service personnel Work, improves the convenience of overhead line electroscopic device.
The second end of the fixed part is provided with fastener, the second end of the movable part in one of the embodiments, It is provided with block button hole, the second end of the fixed part and the second end of the movable part fasten company by fastener and block button hole It connects.The second end of the fixed part is provided with block button hole in one of the embodiments, and the second end of the movable part is provided with Fastener, the second end of the fixed part and the second end of the movable part are fastened and connected by block button hole and fastener.
In order to improve the safety of overhead line electroscopic device, referring to Fig. 3, the installation in one of the embodiments, Seat 320 is additionally provided with protective cover 321, and the protective cover 321 is set to the mounting base 320 close to one end of the lamp plate 400, And it is arranged around the periphery of the lamp plate 400.In this way, protective cover can protect lamp plate and electrical verification module, overhead line electrical verification is improved The safety of device is conducive to the service life for increasing overhead line electroscopic device.
In one of the embodiments, referring to Fig. 3, the section radius of the protective cover 321 is by close to the peace The one end for filling seat 320 is gradually increased to the direction of one end far from the mounting base 320.And protective cover is by close to the installation One end of seat 320 gradually tilts outward to the direction of one end far from the mounting base 320, that is to say, that protective cover is circle Platform structure, and the lesser one end of diameter is connect with mounting base is arranged in umbrella, in such manner, it is possible to ensure it is enough climb electricity away from From, and can also prevent rainwater from entering lamp plate.
In order to improve the brightness of lamp plate, Fig. 3 and Fig. 4 is please referred to, in one of the embodiments, the overhead line electrical verification dress Setting 10 further includes lampshade 330, and the lampshade 330 is connect with the mounting base 320, and the lampshade 330 is set to the protective cover In 321, and it is arranged around the periphery of the lamp plate 400.In the present embodiment, lampshade setting is internal empty made of surrounding in protective cover Between, also, lampshade is in frustum cone structure, and the section radius of lampshade is smaller than the section radius of protective cover.In this way, issuing lamp plate Light is more concentrated, and easy access personnel observe when carrying out electrical verification work judges whether the route of monitoring has electric current.
For the ease of being fixed on electric force pole tower, referring to Fig. 1, the overhead line electrical verification in one of the embodiments, Device 10 further includes bracket 500, and the bracket 500 is provided with first clamping member 510, and described first clamping member 510 clamps described Mounting base 320.Specifically, bracket can be fixed on shaft tower, and mounting hole is offered on bracket, can pass through the accessories such as screw and shaft tower Fixed, first clamping member clamps mounting base with fixation, in this way, being capable of fixing overhead line electroscopic device is mounted on electric force pole tower On, when service personnel carries out electrical verification work, only induction lantern ring need to be sheathed on overhead line, electrical verification work can be started.
In order to further increase the stability that shell is mounted on bracket, referring to Fig. 1, institute in one of the embodiments, It states bracket 500 and is additionally provided with the second clamping piece 520, second clamping piece 520 is arranged with described first clamping member 510 interval, Second clamping piece 520 clamps the lampshade 330.In this way, the second clamping piece clamps lampshade, enable the housing to more stable Ground is rack-mount, is conducive to improve the stability that overhead line electroscopic device is mounted on electric force pole tower.
In order to further increase the property easy to use of overhead line electroscopic device, Fig. 2 and Fig. 5 is please referred to, wherein a reality It applies in example, the bracket 500 includes fixed plate 530, the first pulling plate 540 and the second pulling plate 550, and described first clamping member 510 is set It is placed in the fixed plate 530, first pulling plate 540 offers the first pulling through slot 541, and described first pulls through slot 541 Extending direction it is identical as the extending direction of first pulling plate 540, described first clamping member 510 is close to the fixed plate 530 One end part be arranged in it is described first pull through slot 541 in;One end of first pulling plate 540 and second pulling plate 550 One end connection, the other end of second pulling plate 550 with it is described incude lantern ring 310 the movable part 313 be fixedly connected;Institute It states the first pulling plate 540 and one end of second pulling plate 550 is provided with limit elastic component 560, and the limit elastic component 560 Telescopic direction it is identical as the extending direction of first pulling plate 540, the limit elastic component 560 pulls logical close to described first One end of slot 541 is provided with locating piece 561, and described first clamping member 510 offers first close to one end of the fixed plate 530 Location hole 511, the locating piece 561 are arranged in the first positioning hole 511.
Specifically, the first pulling through slot is offered on the first pulling plate, a part of clamping piece is arranged in the first pulling through slot It is interior, also, first pulls the extending direction of through slot identical as the extending direction of the first pulling plate, so that be fixedly mounted in fixed plate In the case of, the first pulling plate can pull back and forth towards its extending direction;One end of first pulling plate is connect with one end of the second pulling plate, And the other end of the second pulling plate is connect with the movable part of induction lantern ring, when the direction that the first pulling plate is directed away from the second pulling plate pulls When, then the second end of the movable part of lantern ring can be answered far from the second end of fixed part with dynamic, so that accommodating through-hole switches to one A slot with opening can will make somebody a mere figurehead in this way, service personnel only need to pull the first pulling plate away from the direction of the second pulling plate Line passes through accommodating through-hole and carries out electrical verification work, not only increases the property easy to use of overhead line electroscopic device, also to overhaul people Member keeps biggish safe distance with overhead line, improves personal safety.It is additionally provided with limit elastic component on first pulling plate, limits bullet Property part telescopic direction it is identical as the extending direction of the first pulling plate, that is to say, that limit the telescopic direction of elastic component and drawn with first The direction of motion of plate is identical, also, the one end for limiting elastic component is connect with the first pulling plate, and the other end is threaded through the by locating piece The positioning hole of one clamping piece, when service personnel pulls the first pulling plate away from the direction of the second pulling plate, accommodating through-hole is cut Change a slot with opening into, overhead line is passed through accommodating through-hole by service personnel, at this point, limit elastic component is under external force Deformation occurs elongates, and when service personnel removes the external force to the first pulling plate, under the elastic reaction of limit elastic component, spring is multiple Position, be able to drive induction lantern ring movable part reset, accommodating through-hole switch to back a side wall ring around hole.In such manner, it is possible into The property easy to use of one step raising overhead line electroscopic device.
In one of the embodiments, referring to Fig. 5, first pulling plate 540 offers the second pulling through slot 542, institute It states the second pulling through slot 542 and pulls the interval of through slot 541 to be arranged with described first, described second pulls the extending direction of through slot 542 Identical as the extending direction of first pulling plate 540, second clamping piece 520 is close to one end part of the fixed plate 530 Described second is arranged in pull in through slot 542.
In one of the embodiments, referring to Fig. 5, the second clamping piece 520 described in second clamping piece 520 offers The locating piece of the second location hole 521, the limit elastic component is arranged in the second location hole of second clamping piece 520 In 521.
In order to improve the stability of limit elastic component, referring to Fig. 2, the locating piece 561 in one of the embodiments, With crotch structure, the crotch structure is arranged in the first positioning hole 511 or the second location hole 521.In this way, Locating piece is firmly cooperated with location hole, avoids unclamping under the elastic reaction of limit elastic component.
In order to further increase the stability of limit elastic component, referring to Fig. 2, institute in one of the embodiments, It states limit elastic component 560 and one end of the first pulling through slot 541 is provided with fixing piece 562, the fixing piece 562 and institute The first pulling plate 540 is stated to be fixedly connected.In this way, the limit one end of elastic component far from the second pulling plate can be firmly secured to the first drawing On plate, the stability of locating part is further increased.
In order to improve the safety of overhead line electroscopic device, the overhead line electroscopic device in one of the embodiments, It further include inspection module, the inspection module for detecting whether electrical verification module has failure, test with described by the inspection module Electric module is electrically connected, and the inspection module is set in second accommodating space, and the lamp plate includes the first illuminating module And second illuminating module, first illuminating module and the electrical verification module are electrically connected, second illuminating module with it is described Inspection module is electrically connected.That is, the first illuminating module is used for electrical verification module, whether detection overhead line has electric current to flow through, Second illuminating module is used for inspection module, and service personnel can detect electrical verification module with the presence or absence of event before progress electrical verification work Barrier so as to which whether accurate judgement route has electric current, and can be avoided effectively because using there are the overhead line electrical verifications of failure The personal safety harm that device occurs, effectively improves the safety of overhead line electroscopic device.It should be noted that the first luminous mould Both the difference of group and the second illuminating module can be the two and be distributed different positions on lamp plate to show difference, be also possible to The light of sending is different colours to show difference.
The electrical verification module and inspection module of overhead line are further detailed below:
In one embodiment, referring to Fig. 7, a kind of overhead line electroscopic device 10, including electrical verification module 100, it is described to test Electric module 100 includes coil 110, common mode inductance 120, voltage regulation unit 150, rectification unit 130 and the first indicating unit 140, institute State coil 110 first end and the common mode inductance 120 first input end be electrically connected, the second end of the coil 110 with Second input terminal of the common mode inductance 120 is electrically connected, the first output end and the rectification unit of the common mode inductance 120 130 first input end is electrically connected, and the second of the second output terminal of the common mode inductance 120 and the rectification unit 130 is defeated Enter end to be electrically connected, the output end of the rectification unit 130 and first indicating unit 140 are electrically connected, the common mode electricity Feel 120 first output ends and second output terminal to be also electrically connected with the voltage regulation unit 150.In the present embodiment, the first instruction is single Member is the lamp plate in any of the above-described embodiment.Specifically, referring to Fig. 8, L1 is coil, L2 is common mode inductance, the coil L1 First end and the first input end of the common mode inductance L2 be electrically connected, the second end of the coil L1 and the common mode inductance The second input terminal of L2 is electrically connected.
The rectification unit is bridge rectifier unit in one of the embodiments,.Specifically, referring to Fig. 8, bridge-type is whole Stream unit includes diode D1, D2, D3 and D4, and the anode of diode D1 is electrically connected with the cathode of diode D2, diode D2 The anode of anode and diode D3 be electrically connected, the anode of the cathode of diode D3 and diode D4 are electrically connected, diode The cathode of D4 and the cathode of diode D1 are electrically connected, wherein the tie point of diode D1 and diode D2 is bridge rectifier list The tie point of the first input end of member, diode D3 and diode D4 are the second input terminal of bridge rectifier unit, bridge rectifier The input terminal of unit accesses alternating current, therefore, the first input end of bridge rectifier unit and the first output end of common mode inductance L2 It is electrically connected, the second input terminal of bridge rectifier unit and the second output terminal of common mode inductance L2 are electrically connected.Diode D1 with The tie point of diode D4 is the cathode output end of bridge rectifier unit, and the tie point of diode D2 and diode D3 is that bridge-type is whole The cathode output end of unit is flowed, cathode output end and the cathode output end output of bridge rectifier unit are direct current.
It is to be appreciated that the first indicating unit can be indicator light, be also possible to buzzer, by issue optical signal or Person's acoustical signal judges whether overhead line has electric current to flow through.It should be noted that the first indicating unit includes but is not limited to above-mentioned Indicator light and buzzer.
First indicating unit is indicator light in one of the embodiments, specifically, referring to Fig. 8, described first Indicating unit includes at least one Light-emitting diode LED, anode and the bridge rectifier unit of the Light-emitting diode LED Cathode output end is electrically connected, and the cathode output end of the cathode of the Light-emitting diode LED and the bridge rectifier unit is electrical Connection.In this way, being based on electromagnetic induction principle when having electric current to flow through on overhead line, coil can generate electromotive force, and electromotive force is Alternating current, alternating current are converted into direct current by rectification unit, and direct current provides power supply for Light-emitting diode LED.And it is based on The DC current of diode unilateral conduction principle, the output of bridge rectifier unit flows to cathode by the anode of Light-emitting diode LED, because This, Light-emitting diode LED can issue light.That is, when Light-emitting diode LED is shinny, then it represents that overhead line has electricity Stream flows through, and the route of monitoring has electric current;When Light-emitting diode LED is not shinny, then it represents that overhead line no current flows through, monitoring Route no current.
Judge to monitor whether route has electric current for the ease of service personnel, referring to Fig. 8, in one of the embodiments, First indicating unit includes several light emitting diodes, several light emitting diodes anode with the bridge rectifier list The cathode output end of member is electrically connected, the cathode output end of the cathode of several light emitting diodes and the bridge rectifier unit It is electrically connected.That is, be connected in parallel between several light emitting diodes, it is several when the output direct current of bridge rectifier unit Light emitting diode is shinny simultaneously, and the brightness of generation is higher, and easy access personnel observation judges to monitor whether route has electric current.
In order to detect whether electrical verification module works normally, referring to Fig. 6, the overhead line in one of the embodiments, Electroscopic device 10 further includes inspection module 200, and the inspection module 200 is electrically connected with the electrical verification module 100, specifically, Referring to Fig. 8, the inspection module 200 includes the of DC power supply U and the first double-pole switch S1, the first double-pole switch S1 The anode of one end and the DC power supply U are electrically connected, and the second end of the first double-pole switch S1 is used for and described luminous two The anode of pole pipe LED is electrically connected, and the cathode of the first double-pole switch S1 third end and the DC power supply U are electrically connected, The 4th end first double-pole switch S1 is used to be electrically connected with the cathode of the Light-emitting diode LED.Specifically, inspection module For detecting light emitting diode with the presence or absence of failure.
It should be noted that there are two independent switches for double-pole switch (the bipolar single connection plane switch of full name) tool, pass through two The on-off of one branch line of switch control, two switches are alternatively two groups of contacts, and there are four contacts, i.e., first altogether for two groups of contacts Contact, the second contact, third contact and the 4th contact, wherein the first contact and the second contact are a switch or one group of touching Point, third contact and the 4th contact are another switch or another group of contact.Double-pole switch only has two states: two switches It is closed at or two switches simultaneously switches off.When two switches are closed at, line conduction;When two switches simultaneously switch off When, route disconnects.
In the present embodiment, the first end and second end of the first double-pole switch are first group of contact, and third end and the 4th end are Second group of contact, when the anode electric connection of second end and light emitting diode and the cathode of the 4th end and light emitting diode electrically connects When connecing, i.e., two switches are closed at, and line status at this time please refers to Fig. 9 a, the anode and light emitting diode of DC current U The anode of LED is electrically connected, and the cathode of DC current U and the cathode of Light-emitting diode LED are electrically connected, DC power supply U and hair Optical diode LED forming circuit, and it is based on diode unilateral conduction principle, Light-emitting diode LED can work normally, and issue light It is bright, then it represents that light emitting diode is normal;When Light-emitting diode LED does not issue light, then it represents that light emitting diode there are failure, Service personnel can avoid the judgement for influencing electrical verification before carrying out electrical verification work by the troubleshooting of light emitting diode.
It should be noted that, although DC power supply U is also electrically connected with bridge rectifier unit, still, due to DC power supply U Anode is electrically connected is cathode output end in bridge rectifier unit between D1, D4, the cathode of DC power supply U is electrically connected Be cathode output end in bridge rectifier unit between D2, D3, that is to say, that one is formed between DC power supply U, D1 and D2 Circuit, also forms a circuit between DC power supply U, D3 and D4, the flow direction of electric current is to flow to D1's from the anode of DC power supply U The cathode of cathode or D4, according to diode unilateral conduction principle, the cathode that electric current cannot pass through D1 flows to the anode of D1, or The anode of D4 is flowed to by the cathode of D4, therefore, the circuit for being equivalent to DC power supply U and bridge rectifier unit is in disconnection shape State, therefore only DC power supply U is connected with the circuit that Light-emitting diode LED is formed.
It should be understood that inspection module is used before electrical verification module carries out electrical verification work, that is to say, that in electrical verification The coil of module, which is not sheathed on also on overhead line, carries out detection line road when whether having electric current, and rectification unit will not then export electric current confession LED operation.Service personnel, by using inspection module, the first double-pole switch is closed, DC power supply U before electrical verification It is formed into a loop with Light-emitting diode LED, by observing whether Light-emitting diode LED issues light, that is, can determine whether light emitting diode LED whether there is failure.
In order to further detect whether electrical verification module works normally, referring to Fig. 8, described in one of the embodiments, Inspection module 200 further includes the second double-pole switch S2 and the second indicating unit L, the first end of the second double-pole switch S2 and institute The cathode for stating Light-emitting diode LED is electrically connected, and the second end of the second double-pole switch S2 is used for the DC power supply U's Anode is electrically connected, and the first end of the second double-pole switch S2 third end and the second indicating unit L are electrically connected, described The 4th end second double-pole switch S2 is used to be electrically connected with the cathode of the DC power supply U;The first of the second indicating unit L End and the third end of the second double-pole switch S2 are electrically connected, the second end of the second indicating unit L and described luminous two The anode of pole pipe LED is electrically connected.Specifically, inspection module is applied not only to detection light emitting diode with the presence or absence of failure, moreover it is possible to The rectification unit in detection electrical verification module is enough in the presence or absence of failure.
In the present embodiment, the first end and second end of the second double-pole switch are first group of contact, and third end and the 4th end are Second group of contact, when the anode electric connection of second end and DC power supply and the cathode of the 4th end and DC power supply is electrically connected When, i.e., two switches are closed at, and line status at this time please refers to Fig. 9 b, anode and the bridge rectifier unit of DC power supply U Cathode output end between middle D2, D3 is electrically connected, in the cathode and bridge rectifier unit of DC power supply U between D1, D4 just Pole output end is electrically connected, that is to say, that a circuit is formed between DC power supply U, D1, D2 and the second indicating unit L, or Be between DC power supply U, D3, D4 and the second indicating unit L formation one circuit, the flow direction of electric current be from DC power supply U just Pole flows to the anode of D2 or the anode of D3, and according to diode unilateral conduction principle, electric current can flow to D2 by the anode of D2 Anode, the cathode of D1 is flowed to using the anode of D1, or the cathode of D3 is flowed to by the anode of D3, using the anode of D4 The cathode for flowing to D4 enables current to by the second indicating unit L the second indicating unit L be worked normally.Also It is to say, when the second double-pole switch is closed, when the second indicating unit L can be worked normally, then it represents that the rectification list of electrical verification module It is first normal;When the second indicating unit L can not work normally, then it represents that there are failures for the rectification unit of electrical verification module.
It is formed into a loop it should be noted that, although DC power supply U is also electrically connected with Light-emitting diode LED, still, direct current The anode of power supply U is electrically connected with the cathode of Light-emitting diode LED, the cathode of DC power supply U and the anode of Light-emitting diode LED It is electrically connected, electric current can not flow through Light-emitting diode LED, and electric current can not flow through the second indicating unit L, so that the second indicating unit L work, the i.e. circuit that DC power supply U, Light-emitting diode LED and the second indicating unit L are formed are in an off state, therefore only straight The circuit conducting that galvanic electricity source U, rectification unit and the second indicating unit L are formed.
As such, it should be understood that inspection module be electrical verification module carry out electrical verification work before use, that is, Say, the coil of electrical verification module be not sheathed on also on overhead line carry out detection line road whether have electric current when, coil can not generate friendship Galvanic electricity, which is exported to rectification unit, makes rectification unit carry out direct current conversion to alternating current.Service personnel is before electrical verification by using inspection Module is tested, the second double-pole switch is closed, is formed into a loop, passes through between DC power supply U, rectification unit and the second indicating unit L It observes whether the second indicating unit works normally, that is, can determine whether rectification unit with the presence or absence of failure.
It is to be appreciated that the second indicating unit L shown in Fig. 8 can be indicator light, it is also possible to buzzer, passes through hair Optical signals or acoustical signal judge whether overhead line has electric current to flow through.It should be noted that the second indicating unit includes but not It is limited to above-mentioned indicator light and buzzer.When the second indicating unit is indicator light, it can be as common light bulb, be also possible to For light emitting diode, when the second indicating unit is light emitting diode, it should be noted that the connection of the positive and negative anodes of light emitting diode is closed System, at this point, the anode of the light emitting diode of the second indicating unit need to be with the anode electricity of the Light-emitting diode LED of the first indicating unit Property connection, the third end electric connection of the cathode of the light emitting diode of the second indicating unit and the second double-pole switch.
Judge for the ease of service personnel, in one of the embodiments, the light emitting diode of second indicating unit Light emitting diode with first indicating unit is the light emitting diode for issuing different colours light.In the present embodiment, first Indicating unit and the second indicating unit correspond to the first illuminating module and the second illuminating module of the lamp plate in an above-mentioned embodiment.
It is described double in one of the embodiments, referring to Fig. 8, the voltage regulation unit includes bi-directional voltage stabilizing diode ZD It is electrically connected to the first end of zener diode ZD and first output end of common mode inductance L2, the bi-directional voltage stabilizing diode ZD Second end and the common mode inductance L2 second output terminal be electrically connected.Since common mode inductance output is alternating current, this In embodiment, voltage regulation unit, in two output ends of common mode inductance, plays the role of pressure stabilizing using bi-directional voltage stabilizing diodes in parallel.
In order to further protect electrical verification module, referring to Fig. 7, the electrical verification module 10 is gone back in one of the embodiments, Including Overvoltage protecting unit 160,120 first output end of common mode inductance and second output terminal also with the Overvoltage protecting unit 160 are electrically connected, specifically, referring to Fig. 8, the Overvoltage protecting unit includes the first two-way Transient Suppression Diode D5 and the The first end of two two-way Transient Suppression Diode D6, the first two-way Transient Suppression Diode D5 are with the common mode inductance L2's First output end is electrically connected, the first end of the second two-way Transient Suppression Diode D6 and the second of the common mode inductance L2 Output end is electrically connected, and the second end of the first two-way Transient Suppression Diode D5 inhibits two poles with the described second two-way transient state The second end of pipe D6 is electrically connected, and the second end of the first two-way Transient Suppression Diode D5 is for being grounded.
In the present embodiment, the first two-way Transient Suppression Diode and the second two-way Transient Suppression Diode refer to two-way wink State voltage suppression diode.When the bilateral transient voltage suppression diode conveniently instantaneous overvoltage pulse of a high-energy, work Lower conduction value can be quickly down to by making impedance, by voltage clamping to predeterminated level, so that the element in effective protection route is exempted from It is damaged.
In order to further protect electrical verification module, referring to Fig. 8, the Overvoltage protecting unit in one of the embodiments, It further include arrester F, the first end of the arrester F and first output end of common mode inductance L2 are electrically connected, described lightning-arrest The second end of device F and the common mode inductance L2 second output terminal are electrically connected, and the arrester F has a ground terminal for connecing Ground.In this way, electrical verification module can further avoid the harm of high transient overvoltage.
In order to further protect electrical verification module, referring to Fig. 7, the electrical verification module 100 is gone back in one of the embodiments, Including Anti-surging unit 170,120 first output end of common mode inductance and second output terminal also with the Anti-surging unit 170 It is electrically connected, specifically, referring to Fig. 8, the Anti-surging unit includes first capacitor C1 and the second capacitor C2, first electricity Hold C1 first end and the common mode inductance L2 the first output end be electrically connected, the first end of the second capacitor C2 with it is described The second output terminal of common mode inductance L2 is electrically connected, the second end of the second end of the first capacitor C1 and the second capacitor C2 It is electrically connected, the second end of the first capacitor C1 is for being grounded.In such manner, it is possible to prevent the damage of surge current.
In one of the embodiments, referring to Fig. 8, the Anti-surging unit further includes the first thermistor R1 and second The first end of thermistor R2, the first thermistor R1 and the first end of the first capacitor C1 are electrically connected, and described the The first input end of the second end of one thermistor R1 and the rectification unit is electrically connected, and the of the second thermistor R2 The first end of one end and the second capacitor C2 are electrically connected, the second end of the second thermistor R2 and the rectification unit The second input terminal be electrically connected.Specifically, in the present embodiment, the first thermistor and the second thermistor are positive temperature coefficient Thermistor.By posive temperature coefficient thermistor of connecting between capacitor and rectification unit, the current heating flowed through makes heat The resistance value of quick resistance increases, and further limits to surge current.
In order to further protect electrical verification module, the overhead line electroscopic device further includes outer in one of the embodiments, Shell, the second of the second end of the first two-way Transient Suppression Diode, the ground terminal of the arrester and the first capacitor End and the cage connection, for the shell for being grounded, the interior of shell offers accommodating space, the electrical verification module setting In the accommodating space.Specifically, the shell is made of insulating materials, in such manner, it is possible to which effective protection protects electrical verification module.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of overhead line electroscopic device characterized by comprising
Shell, including induction lantern ring and mounting base, the induction lantern ring are set to one end of the mounting base, the induction lantern ring With an accommodating through-hole, for accommodating overhead line, the first accommodating space is offered inside the induction lantern ring, in the mounting base Portion offers the second accommodating space;
Electrical verification module, including coil, common mode inductance, voltage regulation unit, rectification unit and lamp plate, the coil are set to described first In accommodating space, the common mode inductance, the voltage regulation unit and the rectification unit are set in second accommodating space, institute It states lamp plate and is set to the one end of the mounting base far from the induction lantern ring.
2. overhead line electroscopic device according to claim 1, which is characterized in that the induction lantern ring includes fixed part and work Dynamic portion, the fixed part are fixedly connected with the mounting base, and the fixed part is oppositely arranged with the movable part, and the fixation The accommodating through-hole is formed between portion and the movable part, one end rotation of one end of the fixed part and the movable part connects It connects, the other end of the fixed part is flexibly connected with the other end of the movable part.
3. overhead line electroscopic device according to claim 2, which is characterized in that further include bracket, the bracket is provided with First clamping member, described first clamping member clamp the mounting base.
4. overhead line electroscopic device according to claim 3, which is characterized in that the bracket includes fixed plate, the first drawing Plate and the second pulling plate, described first clamping member are set in the fixed plate, and first pulling plate offers the first pulling through slot, Described first pulls the extending direction of through slot identical as the extending direction of first pulling plate, and described first clamping member is close to described One end part of fixed plate is arranged in described first and pulls in through slot;One end of first pulling plate and the one of second pulling plate End connection, the other end of second pulling plate are fixedly connected with the movable part;First pulling plate is far from second pulling plate One end be provided with limit elastic component, and the telescopic direction and the extending direction phase of first pulling plate of the limit elastic component Together, the limit elastic component is provided with locating piece close to one end of the first pulling through slot, and described first clamping member is close to institute The one end for stating fixed plate offers first positioning hole, and the locating piece is arranged in the first positioning hole.
5. overhead line electroscopic device according to claim 4, which is characterized in that the locating piece has crotch structure, institute Crotch structure is stated to be arranged in the first positioning hole.
6. overhead line electroscopic device according to claim 4, which is characterized in that the limit elastic component is far from described first One end of through slot is pulled to be provided with fixing piece, the fixing piece is fixedly connected with first pulling plate.
7. overhead line electroscopic device according to claim 1, which is characterized in that it further include inspection module, the inspection mould Block is for detecting whether electrical verification module has failure, and the inspection module and the electrical verification module are electrically connected, the inspection mould Block is set in second accommodating space, and the lamp plate includes the first illuminating module and the second illuminating module, first hair Optical mode group and the electrical verification module are electrically connected, and second illuminating module and the inspection module are electrically connected.
8. according to claim 1 to overhead line electroscopic device described in 7, which is characterized in that the mounting base is additionally provided with protection Cover, the protective cover are set to the mounting base close to one end of the lamp plate, and are arranged around the periphery of the lamp plate.
9. overhead line electroscopic device according to claim 8, which is characterized in that the section radius of the protective cover is by close One end of the mounting base is gradually increased to the direction of one end far from the mounting base.
10. overhead line electroscopic device according to claim 8, which is characterized in that further include lampshade, the lampshade with it is described Mounting base connection, the lampshade are set in the protective cover, and are arranged around the periphery of the lamp plate.
CN201910578288.3A 2019-06-28 2019-06-28 Overhead line electroscopic device Pending CN110231544A (en)

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CN112332289A (en) * 2020-11-13 2021-02-05 广东电网有限责任公司 Cable maintenance device

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CN111856123A (en) * 2020-08-31 2020-10-30 中国电建集团福建工程有限公司 Electricity test paster with double check
CN112332289A (en) * 2020-11-13 2021-02-05 广东电网有限责任公司 Cable maintenance device

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