CN207689557U - A kind of residual current measuring device - Google Patents
A kind of residual current measuring device Download PDFInfo
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- CN207689557U CN207689557U CN201721564702.8U CN201721564702U CN207689557U CN 207689557 U CN207689557 U CN 207689557U CN 201721564702 U CN201721564702 U CN 201721564702U CN 207689557 U CN207689557 U CN 207689557U
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- binding clip
- residual current
- jaw
- shaft
- instrument
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- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 6
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 2
- 240000008790 Musa x paradisiaca Species 0.000 claims 1
- 238000005299 abrasion Methods 0.000 claims 1
- 239000002775 capsule Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 8
- 230000001174 ascending effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 241000234295 Musa Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000703 anti-shock Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model is related to a kind of residual current measuring devices.Residual current measuring device provided by the utility model, binding clip including insulation and the stick body to insulate on binding clip is set, the binding clip is arranged through revolving member with stick, the binding clip adjusts angle with revolving member by connecting bolt, the binding clip is equipped with the jaw for measuring residual current, and the shaft lower part is equipped with instrument；During specifically used, the device is mainly used for the operation of residual current fault measuring on daily low-voltage circuit, operating personnel station hand-held device on the ground, the jaw being located on binding clip by the way that the handle opening in shaft tail portion is arranged, easily outlet cable jaw will can be put into after the low pressure service conductor of electrification or adjustment binding clip angle to measure, and by the way that the instrument reading measurement data in shaft lower part is arranged, use is very convenient.
Description
Technical field
The utility model is related to a kind of electrician tool, especially a kind of current measuring device.
Background technology
Currently, China's countryside low-voltage electric distribution network generally uses TT systems, according to national standards《Aftercurrent action protecting fills
Set installation and operation》（GB13955-2005）Regulation, the electric wiring or electrical equipment of TT systems must install residual current guarantor
Safeguard measure of the protection unit as anti-shock hazard.Since the beginning of the seventies, since promoting and applying residual current action protector,
Remarkable effect is achieved in terms of preventing electrical fire, reducing accident of human electric shock.But since rural low voltage network has
The features such as " point more than long lines, scale big, management difficult ", in addition part peasant household awareness of safety is thin, private drawings is random the electricity consumption lack of standardization such as connects
The residual current of behavior, low-voltage circuit and user household electrical equipment（Also known as leakage current）Failure leads to the residue of power distribution station
Current operated protective device trips power failure frequent occurrence, accounts for the 72.3% of low-voltage network failure, and it is reliable to have seriously affected power supply
Property and normally for electricity consumption order, so power supply enterprise is frequently necessary to carry out residual current malfunction elimination on low-voltage circuit.
According to power industry standard DL/T 499-2001《Rural area low-voltage power technical regulation》Regulation：Service conductor and house lead in
The house lead in end of line is not preferably less than 2.5m to the vertical range on ground；Cable draws ground level should wear steel pipe guarantor in 2m with lower part
Shield.Therefore, the employee of power supply enterprise on low pressure service conductor or on outlet cable when measuring residual current, first, due in the market
Residual current measures conventional instrument（Device）It is hand-held, therefore cannot stands directly on ground and carry out, by ladder, orange etc.
Ascending tool, and two people is at least needed to carry out, so there are the low phenomenons of time-consuming and laborious, work efficiency.Second is that due to measuring work
Work is charged after ascending a height and is carried out, and handheld instrument is closer with a distance from charging equipment when measuring, and is easy to happen human electric shock, short circuit burns
Wound or eminence such as get injured by a fall at the accidents, so there are potential security risks.Third, since power supply station's vehicle is equipped with limited, most of member
The vehicles of work are based on motorcycle, it is therefore desirable to which the day-to-day operation maintenance work for carrying ascending tool to worker at the production line is brought
It is greatly inconvenient, also increase the cost of enterprise.
Utility model content
The utility model has filled up the blank compared with telemeasurement residual current, is to conventional residual current measuring instrumentss
It substitutes.By the practicality of the utility model, solving operator station can securely and reliably, quickly and easily carry out on the ground
The measurement problem of residual current on low pressure service conductor or outlet cable.
A kind of residual current measuring device, including the binding clip of insulation and setting, in binding clip upper jaw, the binding clip is through rotation
Component is arranged on the shaft of insulation, and the binding clip adjusts angle with shaft by connecting bolt；Jaw warp on the binding clip
Soft cable wire is connected with the handle for being arranged in shaft tail portion；The conducting wire drawn on the jaw and the instrument in shaft lower part is set
It is connected；The instrument is fixed on through holder on shaft, and detachable；The binding clip and instrument are an integral structure.
Further, the binding clip is arranged through connecting bolt on revolving member, and the one end for connecting bolt is wing nut, separately
One end is that polygonized structure is embedded on revolving member, and connection bolt is made to skid when moving wing nut to prevent rotation stop.The rotation structure
Part is equipped with the fixing groove for accommodating binding clip and binding clip can be made to rotate to match with binding clip；The binding clip is by connecting spiral shell
Bolt and wing nut rotation connection are arranged on revolving member, during specifically used, by unclamping or locking connection bolt i.e.
Caput can be easily unclamped or clamp, to allow the angle between binding clip and revolving member to be adjusted between 0 °~90 °,
It is easy to operate；In addition, need not be grasped by other tools when by the way that wing nut, locking or release connection bolt is arranged
Facilitate；Further, the holding tank that cross-sectional shape is polygon is set on revolving member by connecting one end of bolt,
When operating wing nut, connection bolt is made wing nut would not to be followed to rotate together, it is easy to operate.
Further, the both sides inner wall of the revolving member fixing groove is equipped with the " rice for improving binding clip position stability
Word " connected in star, to meet angular adjustment, both sides outer wall vertical line is equipped with the striped of protrusion on the binding clip fixed part, with rotation
The groove that component is fixed in groove sidewall can be intermeshed, and binding clip and revolving member can be improved by the way that striped and groove is arranged
Angle positioning accuracy between positioning accuracy, i.e. binding clip and operation shaft is high, the opposite positioning with shaft of binding clip during use
Stability is good, easy to use.
Further, the revolving member is equipped with the pipeline for wearing soft cable wire and conducting wire, wherein wearing the pipeline two of soft cable wire
Metal liner of the end equipped with toroidal to improve soft cable wire in operation smooth, and prevents revolving member by soft steel
Rope is worn, and the top of soft cable wire is equipped with insulator, to improve the electric operation safety of device.
Further, the jaw on the binding clip is equipped with support spring, usually relies on support spring to be in jaw and is closed
State；The jewelry, expensive clothing and other valuables cable wire is connected across support spring with the side of jaw, and is again provided with toroidal at binding clip drawing
Metal liner, hold with a firm grip the handle for being located at shaft tail portion when, by the return of stroke device being located on handle, and by bolt at
Lever linkage is formed with the other side of jaw, so that entire jaw is in open configuration, you can by bundles of low-voltage circuit or cable
It is put into the measurement that jaw carries out residual current.
Further, the instrument is equipped with range selector, liquid crystal display and data and preserves function key, instrument one
Body formula structure is fixed on shaft lower part through holder；The conducting wire drawn in the binding clip passes through in revolving member and shaft pipe, draws and connects
To instrument, the end of conducting wire is equipped with the pluggable banana plug in instrument, meets the requirement that instrument can be dismounted from holder.
Further, the tail portion of the shaft is provided with gum cover, and gum cover surface is equipped with raised cast striped or pointing object, can prevent
Only slipped when hand-held.
Further, it forms and is both provided with air bag, shaft in two semicircular bodies of the jaw（2）Tail portion be provided with and be used for
The gas cylinder supplied to the air bag is provided with control by pipeline unicom between air bag and gas cylinder on gas cylinder
The control valve of gas outflow is provided with the gas bleeder valve of control air bag outflow on the pipeline.When air bag is non-aerating, it is fitted in two
In semicircular body, the test lead being put into jaw can be supported on to the center of jaw after airbag aeration, i.e., so that conducting wire is most
It is possible to pass through from the center of jaw, so that is measured is more accurate.
A kind of residual current measuring device provided by the utility model, has the following advantages that：
Including insulating bar and the binding clip that insulate in head is set, the binding clip rotation connection is arranged on shaft, pincers
Head adjusts angle by connecting bolt, and residual current measurement is carried out on the low-voltage circuit in such a way that satisfaction is in different device, such as
The service conductor of horizontal device or the outlet cable of vertical means etc.；The operation pole length meets human body station and on the ground may be used
The low pressure service conductor and cable of 2.7 meters of ranges, and the jaw by being located on the operable binding clip of handle of tail portion are measured, is avoided
Ascending tool must be used when previous measurement；The binding clip, revolving member, operating lever are all made of insulating materials or make insulation package
Processing to avoid short circuit between distribution components and can prevent operating personnel's electric shock in operating process, improve residual current
Security performance when measuring device uses；The operation that personnel are conveniently operated in the lower part of operating lever to instrument is arranged in the instrument
With directly read measurement data, and instrument is detachable, is convenient for carrying and protective meter.
Using the advantageous effect after the utility model：（1）Measuring device all insulation prevents that personal touch occurs in measurement process
Electrification improves electric operation safety；（2）It can stand directly on ground and measure, prevent to ascend a height because of measurement process needs
Operation and the person that occurs such as fall at the safety accidents, improve the safety in measurement process；（3）It single can measure operation, operation
Process is time saving and energy saving, and measuring device is easy to carry, and the residual current failure that each service conductor is handled through tracking statistical average is arranged
3 minutes or more can be reduced by looking into the time, thus can be greatly lowered power supply enterprise because residual current malfunction elimination operation and maintenance at
This.（4）In daily walkaround inspection, it is quickly found out the residual current fault point of user using the device, shortens processing time,
The number that the total surplus current operated protective device of power distribution station trips caused by the residual current of user household electric appliance is reduced,
Improve power supply reliability.
Description of the drawings
Attached drawing 1 is a kind of structural schematic diagram of residual current measuring device of the utility model；
Attached drawing 2 is the structural schematic diagram of revolving member in a kind of residual current measuring device of the utility model；
Attached drawing 3 is structure enlargement diagram at A in attached drawing 1；
Attached drawing 4 is the structural schematic diagram of embodiment two.
Specific implementation mode
Below in conjunction with the accompanying drawings, a kind of residual current measuring device of the utility model is described further.Such as Fig. 1, figure
Shown in 2, Fig. 3, a kind of residual current measuring device, including it is used for residual current measurement and 1 He of binding clip made from insulating materials
It is arranged on binding clip 1 for the hand-held and operation club body 2 made from insulating materials, and the instrument 3 being arranged on shaft 2；
The binding clip 1 is arranged on shaft 2 by the connection of revolving member 4 and binding clip 1 and the angle of shaft 2 can be adjusted；The binding clip 1
For the integral structure of hook type current transformer, gap and shell composition, which is the ordinary construction of the prior art, herein not
It is described in detail；The top dead center position of the binding clip 1 is equipped with jaw 5, passes through and turns with the soft cable wire 6 being located in 2 pipe of shaft
Dynamic component 4 is connected with the handle 7 for being located at 2 tail portion of shaft, jaw 5 can be made to open by the return of stroke device 8 being located on handle 7
It opens or is closed, for compared with the residual current on telemeasurement low-voltage circuit；The top of the jewelry, expensive clothing and other valuables cable wire 6 is equipped with insulator
（Block）9, to improve the electric operation safety of device；The conducting wire 10 drawn in the binding clip 1 passes through revolving member 4 and shaft 2
In pipe, draw in the instrument 3 for being connected to and being located at 2 lower part of shaft, the end of conducting wire 10 is equipped with pluggable banana plug 11, in instrument 3
Function key 14 is preserved at least provided with range selector 12, liquid crystal display 13 and data, instrument 3 is an integral structure, the knot
Structure is the ordinary construction of the prior art, not described in detail herein；Instrument 3 is fixed on 2 lower part of shaft through holder 15, is conveniently operated
Operation of the personnel to instrument 3, and can closely read measurement data；The gum cover 16 for being located at 2 tail portion of shaft, surface is equipped with
Raised cast striped or pointing object can prevent from slipping when hand-held.
Referring to Fig. 1,2, the binding clip 1 is arranged through connecting bolt 17 and wing nut 18 on revolving member 4, connects bolt
17 end 19 is that polygonized structure 19 is embedded on revolving member 4, and connection bolt 17 skids when moving wing nut 18 to prevent rotation stop.
Referring to Fig. 1,2, the revolving member 4 is plugged on the head of shaft 2, is fixed through rivet 20, to improve stable operation
Property, the rivet 20 can also use screw to replace；The revolving member 4 is equipped with the pipeline 21 for wearing soft cable wire 6 and conducting wire 10,
The pipe ends for wherein wearing soft cable wire 6 are equipped with the metal liner 22 of toroidal, to improve in operation suitable of soft cable wire 6
Freely, and prevent revolving member 4 from being worn by soft cable wire 6.
Referring to Fig. 1,3, the jaw 5 on the binding clip 1 is equipped with support spring 24, usually relies on support spring 24 by jaw
5 are in closed state；The jewelry, expensive clothing and other valuables cable wire 6 is connected across support spring 24 with the side of jaw 5, and same at binding clip 1 drawing
Sample is equipped with the metal liner 28 of toroidal, hold with a firm grip the handle 7 for being located at 2 tail portion of shaft when, and by bolt 25 with jaw 5
The other side forms lever linkage, so that entire jaw 5 is in open configuration, you can bundles of low-voltage circuit or cable are put into jaw
5 carry out the measurement of residual current.
Referring to Fig. 2,3, the center vertical line position of 1 lower part both sides outer wall of the binding clip is equipped with the striped 27 of protrusion, rotation
The both sides inner wall of 4 fixing groove of component is equipped with a plurality of groove 23, arranges that striped 27 and groove 23 can be nibbled mutually in " rice word " shape
It closes, the positioning for meeting binding clip 1 at 0 °~90 ° adjusts, and the stability of binding clip 1 in operation can be improved；The binding clip 1 leans on
Several fixing axles 26 are assembled.
In use, which is mainly used for searching residual current failure on daily low-voltage circuit above-mentioned technical proposal
Operation, staff by 2 station of hand-held bar on the ground, handle 7 opening operation bar of the operation setting in 2 tail portion of shaft
Jaw 5 on the binding clip 1 of front end, binding clip 1 are to be rotatably connected, can be in low pressure when binding clip 1 is adjusted with 2 angle of shaft to 0 °
Residual current measurement is carried out on service conductor, it, can be in low-pressure line-outgoing cable when binding clip 1 is adjusted with 2 angle of shaft to 90 ° or so
Road carries out residual current measurement, and use is very convenient；By the way that the instrument 3 of 2 lower part of shaft is arranged, residue can be easily carried out
Current range switching, measurement data are read, and the operation etc. to each function key, and can easily instrument 3 be removed or be filled
On；Measuring device is made using insulation village material, to avoid short circuit between distribution components and can prevent from operating in operating process
Personnel get an electric shock, and improve security performance when low pressure operating lever uses.
Embodiment two
It forms and is both provided with air bag 30, shaft in two semicircular bodies of the jaw（2）Tail portion be provided with for institute
The gas cylinder 31 for stating air bag gas supply is provided with control by 32 unicom of pipeline between air bag and gas cylinder on gas cylinder
The control valve 33 of gas outflow is provided with the gas bleeder valve 34 of control air bag outflow on the pipeline, for the gas in venting air bag
Body.It when air bag is non-aerating, is fitted in two semicircular bodies, the tested conducting wire 35 being put into jaw can be supported after airbag aeration
In the center of jaw, i.e., so that conducting wire passes through from the center of jaw as far as possible, so that is measured is more accurate
Really.
It these are only preferred embodiments of the present invention, it is intended to embody the protrusion technique effect of the utility model and excellent
Gesture is not the limitation to the technical solution of the utility model.Those skilled in the art will appreciate that all are based on this reality
Modification, variation or the substitute technology feature made with new technique content, should all be covered by right appended by the utility model
It is required that in the technology scope advocated.
Claims (8)
1. a kind of residual current measuring device, it is characterised in that：Binding clip including insulation（1）With setting in binding clip（1）On pincers
Mouthful（5）, the binding clip（1）Through revolving member（4）Shaft in insulation is set（2）On, the binding clip（1）With shaft（2）Pass through
Connect bolt（17）Adjust angle；The binding clip（1）On jaw（5）Through soft cable wire（6）With setting in shaft（2）Tail portion
Handle（7）It is connected；The jaw（5）The conducting wire of upper extraction is with setting in shaft（2）The instrument of lower part（3）It is connected；The instrument
（3）Through holder（15）It is fixed on shaft（2）On.
2. residual current measuring device according to claim 1, it is characterised in that：The binding clip（1）Through connecting bolt
（17）It is arranged in revolving member（4）On, connect bolt（17）One end be wing nut（18）, the other end is that polygonized structure is embedding
In revolving member（4）On, move wing nut to prevent rotation stop（18）When make connection bolt（17）It skids.
3. residual current measuring device according to claim 1, it is characterised in that：The binding clip（1）Lower part both sides outer wall
Center vertical line position be equipped with protrusion striped（26）, revolving member（4）The both sides inner wall center vertical line and level of fixing groove
Position is respectively provided with groove（27）, arranged in " rice word " shape, striped（26）And groove（27）It can be intermeshed, meet binding clip（1）
It is adjusted in 0 ° and 90 ° of positioning, and binding clip can be improved（1）Stability in operation.
4. residual current measuring device according to claim 1, it is characterised in that：The revolving member（4）It is thin equipped with wearing
Bowden cable（6）And conducting wire（10）Pipeline（21）, wherein wearing soft cable wire（6）Pipe ends be equipped with toroidal metal liner
Pipe（22）, to improve soft cable wire（6）In operation smooth, and prevent revolving member（4）By soft cable wire（6）Abrasion, carefully
Bowden cable（6）Top be equipped with insulator（9）, to improve the electric operation safety of device.
5. residual current measuring device according to claim 1, it is characterised in that：The binding clip（1）On jaw（5）On
Equipped with support spring（24）, usually rely on support spring（24）By jaw（5）In closed state；The jewelry, expensive clothing and other valuables cable wire（6）It wears
Cross support spring（24）With jaw（5）Side be connected, and draw binding clip（1）Place is again provided with the metal liner of toroidal
（22）, hold with a firm grip and be located at shaft（2）The handle of tail portion（7）When, by being located at handle（7）On return of stroke device（8）, and pass through
Bolt（25）Place and jaw（5）The other side formed lever linkage, make entire jaw（5）In open configuration, you can by bunchy
Low-voltage circuit or cable be put into jaw（5）Carry out the measurement of residual current.
6. residual current measuring device according to claim 1, it is characterised in that：The instrument（3）Turn equipped with range
Change switch（12）, liquid crystal display（13）Function key is preserved with data（14）, instrument（3）It is an integral structure, through holder（15）
It is fixed on shaft（2）Lower part；The binding clip（1）The conducting wire of middle extraction（10）Across revolving member（4）And shaft（2）In pipe, draw
It is connected to instrument（3）On, conducting wire（10）End be equipped with it is pluggable in instrument（3）On banana plug（11）, meeting instrument can be from
The requirement dismounted on holder.
7. residual current measuring device according to claim 1, it is characterised in that：The shaft（2）Tail portion be provided with
Gum cover（16）, gum cover（16）Surface is equipped with raised cast striped or pointing object, can prevent from slipping when hand-held.
8. residual current measuring device according to claim 1, it is characterised in that：Form two semicircular bodies of the jaw
On be both provided with air bag, shaft（2）Tail portion be provided with the gas cylinder for being supplied to the air bag, air bag and gas cylinder
Between by pipeline unicom, the control valve of control gas outflow is provided on gas cylinder, control gas is provided on the pipeline
The gas bleeder valve of capsule outflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564702.8U CN207689557U (en) | 2017-11-21 | 2017-11-21 | A kind of residual current measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564702.8U CN207689557U (en) | 2017-11-21 | 2017-11-21 | A kind of residual current measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689557U true CN207689557U (en) | 2018-08-03 |
Family
ID=62998450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721564702.8U Active CN207689557U (en) | 2017-11-21 | 2017-11-21 | A kind of residual current measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689557U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632450A (en) * | 2019-08-16 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Intelligent low-voltage distribution network patrol instrument device |
| CN111812362A (en) * | 2020-07-31 | 2020-10-23 | 广东电网有限责任公司 | Novel quick short-circuit wire fixing device for testing instrument |
| CN113156182A (en) * | 2021-01-12 | 2021-07-23 | 国网浙江杭州市富阳区供电有限公司 | Remote measuring device for residual current of overhead line |
-
2017
- 2017-11-21 CN CN201721564702.8U patent/CN207689557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632450A (en) * | 2019-08-16 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Intelligent low-voltage distribution network patrol instrument device |
| CN110632450B (en) * | 2019-08-16 | 2022-04-01 | 国网浙江省电力有限公司湖州供电公司 | Intelligent low-voltage distribution network patrol instrument device |
| CN111812362A (en) * | 2020-07-31 | 2020-10-23 | 广东电网有限责任公司 | Novel quick short-circuit wire fixing device for testing instrument |
| CN113156182A (en) * | 2021-01-12 | 2021-07-23 | 国网浙江杭州市富阳区供电有限公司 | Remote measuring device for residual current of overhead line |
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