CN207964927U - A kind of split type pincerlike line current measuring instrument - Google Patents
A kind of split type pincerlike line current measuring instrument Download PDFInfo
- Publication number
- CN207964927U CN207964927U CN201820146456.2U CN201820146456U CN207964927U CN 207964927 U CN207964927 U CN 207964927U CN 201820146456 U CN201820146456 U CN 201820146456U CN 207964927 U CN207964927 U CN 207964927U
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- link rod
- current
- core type
- transformer
- split core
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses a kind of split type pincerlike line current measuring instruments,By split core type current transformer,Handle screw,Link rod adapter,Rope,Link rod,Clamp on amperemeter,Coil,Rubber ring,Flexible circuit conductor,Screw hole forms,Extend split core type current transformer using link rod to reach at the circuit for needing to measure,Split core type current transformer folder is controlled by the rope being connect with split core type current transformer handle on the line,The primary side high current of split core type current transformer secondary side low current is converted into using electromagnetic induction principle to be transmitted on coil,Pass through electromagnetic induction principle again,Pincer is restored by the electric current of electric pole circuit or the line current of transformer that current transformer reduces,The electric current for the electric pole circuit for going to restore in detection coil by clamp on amperemeter or the line current of transformer,So that the value that detects of clamp on amperemeter is closer to electric pole circuit or the actual current value of transformer lines.
Description
Technical field
The utility model is related to line current fields of measurement, more particularly to a kind of split type pincerlike line current measuring instrument.
Background technology
The size of current great disparity in the circuit of power generation, power transformation, transmission of electricity, distribution and electricity consumption has from several peaces to tens of thousands of Andu.For
It needs to be converted to the unified electric current of comparison convenient for measurement, protection and control, in addition the voltage on circuit is general relatively high as straight
It is breakneck to connect measurement.
It is to pass through work that traditional clamp on amperemeter, which measures the electric current of electric pole circuit or the way of the line current of transformer,
Make personnel's use and step on bar tool and hand-held clamp on amperemeter close-in measurement, the method for this close-in measurement electric current not there is only
Serious security risk, and multi circuit transmission lines are unable to measure, while climbing up to easy to produce on high electric pole and falling thing
Therefore.
Currently, the measurement of distribution network line electric current is usually to be carried out in electric substation, line is measured by current transformer
Road electric current.In order to measure line current in real time, there is company to have developed high voltage line current measuring device, high-voltage line can be installed on
Road measures line current in real time.Analog quantity is become into digital quantity by A/D converter, is sent measured value by wireless module
It is shown to the receiving device on ground, this method cannot measure the actual current value at any point on distribution wire.
Invention content
To solve the above-mentioned problems, the purpose of this utility model is to provide a kind of split type pincerlike line currents to measure
Split core type current transformer is installed on link rod by instrument, by lengthening link rod, so that split core type current transformer is reached and is needed to measure
Circuit at, split core type current transformer folder is controlled on the line by the rope that is connect with split core type current transformer handle, is passed through
The electric current that split core type current transformer detects is transferred to clamp on amperemeter and measured by flexible circuit conductor.Staff need to only stand on ground
The electric current of circuit can be measured on face.
To achieve the above object, the split type pincerlike line current measuring instrument of one kind provided by the utility model is realized in
's：
A kind of split type pincerlike line current measuring instrument, is characterized in：Including split core type current transformer, handle screw, crane
Stick adapter, rope, link rod, clamp on amperemeter, coil, rubber ring, flexible circuit conductor, screw hole, link rod adapter and pincer
Current transformer welds together, and split core type current transformer is used to incude the electric current of electric pole circuit or the line electricity of transformer
Stream is accessed in link rod adapter by link rod, from enabling split core type current transformer to stretch toward from the circuit of eminence, in crane
Stick adapter is equipped with screw hole, handle screw pass through screw hole by link rod and link rod adapter tightly be connected to one
It rises, when needing to dismantle link rod adapter with link rod, handle screw is unscrewed, rope and split core type current transformer handle
Connection controls split core type current transformer folder on the line by retractable rope, and flexible circuit conductor is connected to split core type current transformer
Between output end and coil, the electric current that split core type current transformer detects is transferred on coil by flexible circuit conductor, convenient for measuring
The electric current of split core type current transformer output, coil appearance puts on rubber ring, avoids human contact's coil, so as to cause injury, then
Coil is measured by clamp on amperemeter.
The split core type current transformer of the utility model be according to electromagnetic induction principle primary side high current is converted into it is secondary
Side low current plays come the instrument measured so that the electric current handed down from the circuit of electric pole circuit or transformer becomes smaller
Current transformation and electrical isolation effect.
The coil turn of the utility model is 100 circles, for restoring the electric pole circuit reduced by split core type current transformer
The line current of electric current or transformer.
The clamp on amperemeter of the utility model is composed of current transformer and ammeter, is gone by clamp on amperemeter
The electric current of the electric pole circuit restored in detection coil or the line current of transformer so that the value that clamp on amperemeter detects is more
Close to electric pole circuit or the actual current value of transformer lines.
The link rod of the utility model can be connected by more piece link rod, increase the length of link rod, staff
Need to only stand on the ground can measure the electric current of circuit.
Needed at the circuit that measures since the utility model using link rod extends split core type current transformer and reaches, by with
The rope control split core type current transformer folder of split core type current transformer handle connection on the line, by flexible circuit conductor by pincerlike electric current
The electric current that mutual inductor detects is transferred to the structure that clamp on amperemeter measures, so as to obtain following advantageous effect：
1. the utility model is connected using more piece link rod, increase the length of link rod, staff need to only stand
The electric current of circuit can be measured on ground.
2. the electric current of electric pole circuit that the utility model is reduced by current transformer using coil reduction or transformer
Line current so that the value that clamp on amperemeter detects is closer to electric pole circuit or the actual current value of transformer lines.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of split type pincerlike line current measuring instrument of the utility model；
Main element symbol description.
| Split core type current transformer | 1 | Handle screw | 2 |
| Link rod adapter | 3 | Rope | 4 |
| Link rod | 5 | Clamp on amperemeter | 6 |
| Coil | 7 | Rubber ring | 8 |
| Flexible circuit conductor | 9 | Screw hole | 10 |
Specific implementation mode
With reference to embodiment and compares attached drawing the utility model is described in further detail.
Referring to Fig. 1, the split type pincerlike line current measuring instrument of the one kind showing in the utility model embodiment, including
Split core type current transformer 1, handle screw 2, link rod adapter 3, rope 4, link rod 5, clamp on amperemeter 6, coil 7, rubber
Ring 8, flexible circuit conductor 9, screw hole 10.
As shown in Figure 1, the link rod adapter 3 welds together with split core type current transformer 1, pincerlike Current Mutual Inductance
Device 1 is used to incude the electric current of electric pole circuit or the line current of transformer, is accessed in link rod adapter 3 by 5 link rods,
From enabling split core type current transformer 1 to stretch toward from the circuit of eminence, screw hole 10, handle spiral shell are equipped on link rod adapter 3
Silk 2 pass through screw hole 10 by link rod 5 the linking together tightly with link rod adapter 3, need dismounting link rod adapter 3
When with link rod 5, handle screw 2 is unscrewed, rope 4 is connect with 1 handle of split core type current transformer, passes through retractable rope 4
It is pressed from both sides on the line to control split core type current transformer 1, flexible circuit conductor 9 is connected to the secondary side current output of split core type current transformer 1
Between end and coil 7, the secondary side current of split core type current transformer 1 is transferred on coil 7, convenient for measuring pincerlike Current Mutual Inductance
The electric current that device 1 exports, 7 appearance of coil put on rubber ring 8, avoid human contact's coil 7, so as to cause injury, then pass through pincer
Ammeter 6 measures the electric current on coil 7.
The split core type current transformer 1 is that primary side high current is converted into the small electricity of secondary side according to electromagnetic induction principle
Stream is come the instrument measured, so that the electric current handed down from the circuit of electric pole circuit or transformer becomes smaller, pincerlike electric current is mutual
At work, its secondary side circuit is to be closed always to sensor 1, therefore the impedance of measuring instrumentss and protective loop series coil
The working condition of very little, split core type current transformer 1 plays the role of current transformation and electrical isolation close to short circuit.
Described 7 the number of turns of coil is 100 circles, using electromagnetic induction principle, the electric pole that will be reduced by split core type current transformer 1
The electric current of circuit or the line current of transformer are restored.
The clamp on amperemeter 6 is composed of current transformer and ammeter, goes to detect by clamp on amperemeter 6
The electric current of the electric pole circuit restored on coil 7 or the line current of transformer so that the value that clamp on amperemeter 6 detects more connects
It is bordering on the actual current value of electric pole circuit or transformer lines.
The link rod 5 can be connected by more piece link rod 5, increase the length of link rod 5, and staff only needs
Standing on the ground can measure the electric current of circuit.
The flexible circuit conductor 9, rope 4 can with the lengthening of link rod 5 length of side.
The operation principle of the utility model and the course of work are as follows：
Split core type current transformer 1 extended using link rod 5 reach and need at the circuit that measures, by with pincerlike Current Mutual Inductance
The rope 4 of 1 handle of device connection controls the folder of split core type current transformer 1 on the line, using electromagnetic induction principle that pincerlike electric current is mutual
The primary side high current of sensor 1 is converted into secondary side low current and is transmitted on coil 7, then by electromagnetic induction principle, will be pincerlike
It is restored by the electric current of electric pole circuit or the line current of transformer that current transformer 1 reduces, passes through clamp on amperemeter 6
Remove the electric current of the electric pole circuit restored in detection coil 7 or the line current of transformer so that clamp on amperemeter 6 detected
It is worth closer to electric pole circuit or the actual current value of transformer lines.
Claims (3)
1. a kind of split type pincerlike line current measuring instrument, is characterized in：Including split core type current transformer, handle screw, link rod
Adapter, rope, link rod, clamp on amperemeter, coil, rubber ring, flexible circuit conductor, screw hole, the link rod adapter and institute
It states split core type current transformer to weld together, the split core type current transformer is used to incude the electric current or transformer of electric pole circuit
Line current, accessed in the link rod adapter by the link rod, stretched from the split core type current transformer is enable
Toward at the circuit of eminence, the screw hole is equipped on the link rod adapter, the handle screw passes through the screw hole
By the link rod with the link rod adapter linking together tightly, need to dismantle the link rod adapter with it is described
When link rod, the handle screw to be unscrewed, the rope is connect with the split core type current transformer handle, by receiving,
Rope is put to control the split core type current transformer folder on the line, the flexible circuit conductor is connected to the split core type current transformer
Between output end and the coil, the electric current that split core type current transformer detects is transferred to by the coil by the flexible circuit conductor
On, convenient for measuring the electric current of the split core type current transformer output, the coil appearance puts on the rubber ring, human body is avoided to connect
The coil is touched, so as to cause injury, then by the clamp on amperemeter coil is measured.
2. split type pincerlike line current measuring instrument according to claim 1, it is characterised in that：The coil turn is
100 circles, the line current of electric current or transformer for restoring the electric pole circuit reduced by the split core type current transformer.
3. split type pincerlike line current measuring instrument according to claim 1, it is characterised in that：The link rod can be by
Link rod described in more piece connects, and increases the length of the link rod, staff need to only stand on the ground can be to circuit
Electric current measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820146456.2U CN207964927U (en) | 2018-01-29 | 2018-01-29 | A kind of split type pincerlike line current measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820146456.2U CN207964927U (en) | 2018-01-29 | 2018-01-29 | A kind of split type pincerlike line current measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964927U true CN207964927U (en) | 2018-10-12 |
Family
ID=63735742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820146456.2U Expired - Fee Related CN207964927U (en) | 2018-01-29 | 2018-01-29 | A kind of split type pincerlike line current measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964927U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873361A (en) * | 2019-02-22 | 2019-06-11 | 南京工业大学 | The lift sensor device of power transmission lines overhauling based on Current Mutual Inductance |
| CN109932609A (en) * | 2019-03-05 | 2019-06-25 | 国网浙江诸暨市供电有限公司 | Rural area low-voltage power supply platform area failure leakage current measuring tool |
| JP2020112444A (en) * | 2019-01-11 | 2020-07-27 | 東日本電信電話株式会社 | probe |
| CN112147395A (en) * | 2020-09-25 | 2020-12-29 | 广东电网有限责任公司广州供电局 | Clamp-on ammeter adapter and current measuring device |
| CN114137289A (en) * | 2021-11-25 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Safety alarm device |
-
2018
- 2018-01-29 CN CN201820146456.2U patent/CN207964927U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020112444A (en) * | 2019-01-11 | 2020-07-27 | 東日本電信電話株式会社 | probe |
| CN109873361A (en) * | 2019-02-22 | 2019-06-11 | 南京工业大学 | The lift sensor device of power transmission lines overhauling based on Current Mutual Inductance |
| CN109932609A (en) * | 2019-03-05 | 2019-06-25 | 国网浙江诸暨市供电有限公司 | Rural area low-voltage power supply platform area failure leakage current measuring tool |
| CN112147395A (en) * | 2020-09-25 | 2020-12-29 | 广东电网有限责任公司广州供电局 | Clamp-on ammeter adapter and current measuring device |
| CN112147395B (en) * | 2020-09-25 | 2024-02-27 | 广东电网有限责任公司广州供电局 | Clamp ammeter adapter and current measuring device |
| CN114137289A (en) * | 2021-11-25 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Safety alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210129 |