CN105954701B - A kind of detection device of earth leakage protective mutual inductor and the method for improving transformer precision - Google Patents
A kind of detection device of earth leakage protective mutual inductor and the method for improving transformer precision Download PDFInfo
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- CN105954701B CN105954701B CN201610378548.9A CN201610378548A CN105954701B CN 105954701 B CN105954701 B CN 105954701B CN 201610378548 A CN201610378548 A CN 201610378548A CN 105954701 B CN105954701 B CN 105954701B
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- cylinder
- mutual inductor
- earth leakage
- leakage protective
- magnet ring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of detection devices of earth leakage protective mutual inductor; the invention also discloses a kind of methods of the raising transformer precision based on earth leakage protective mutual inductor testing apparatus; the method of the raising transformer precision is the operation principle based on earth leakage protective device; by the voltage output value for detecting each orientation of mutual inductor magnet ring; to find the minimum point of voltage output value; using this point as standard, the earth leakage protective device precision made will be enhanced.The structure of the detecting device of earth leakage protective mutual inductor used in the method for the raising transformer precision is simple; it is easy to make; compared with purchasing high performance steelmaking equipment; greatly reduce cost; the sensitivity that made earth leakage protective device can be improved in the case where putting into low cost is conducive to improve the performance of enterprises.
Description
Technical field
The present invention relates to electric elements field, the detection device and raising mutual inductor of specifically a kind of earth leakage protective mutual inductor
The method of precision.
Background technology
Since man invented and since using electricity, electricity can not only bring many convenience to the mankind, can also be brought to the mankind
Extinction.It may burn out electric appliance, cause fire, or make one to get an electric shock.If there is a kind of equipment can make people safely
Use electricity, it will avoid many unnecessary losses.So while omnifarious electric appliance is comed one after another, also it has been born each
The protector of formula various kinds.Wherein have that one is special protection people, referred to as earth leakage protective device.Earth leakage protective device is commonly called as electric leakage and opens
Close, be for circuit or electrical apparatus insulation are impaired shorted to earth occurs when the anti-person get an electric shock and the protection electric appliance of electrical fire, one
As be installed on the electric power incoming line of the buildings receptacle loop Shang Hequan consumer unit of each household distribution box.Earth leakage protective device experienced one
Very long development course has been that the whole world generally uses at present.
Mutual inductor is the important composition component of earth leakage protective device, and the operation principle of earth leakage protective device is：Power supply goes line to pass through
Mutual inductor connects the input terminal of electrical appliance, and the output end of electrical appliance connects power return, and power return passes through mutual inductor, just
Under normal state, power supply goes line with the electric current on power return since size is identical, direction is on the contrary, the magnetic field therefore generated is mutually supported
Disappear, mutual inductor would not also generate induced voltage, and when circuit generates electric leakage, power supply removes the electric current on line and power return no longer
Identical, curent change makes mutual inductor generate induced voltage, which drives relay as the driving voltage of relay switch
Device switchs work, to make circuit disconnect, also just current source and electrical appliance partition is opened, realize creepage protection function.It is general next
Say that the driving voltage requirement of relay is the smaller the better, driving voltage is smaller, and the work of earth leakage protective device when electric leakage accident occurs more
Add rapid, sensitiveer, safety higher.But in fact, since mutual inductor is usually magnet ring made of non-crystalline material, and amorphous
Material is a kind of mixture, therefore amorphous magnet ring each section is uneven, and the performance for also having resulted in amorphous magnet ring is uneven, in this way
Even without electric leakage, faint voltage output is still had, this has resulted in error, influences the precision of earth leakage protective device.At present
In order to solve this problem, extraordinary steelmaking equipment is usually used, to improve the uniformity of material, in this way, not only cost
The high and manufactured amorphous magnet ring uniformity is still not ideal enough, has also resulted in the magnetic of magnet ring each section of mutual inductor
Sensibility reciprocal still has deviation, will produce the error in output in practical applications so as to cause mutual inductor, influences earth leakage protective
The sensitivity and safety of device.
Invention content
The purpose of the present invention is to provide the sides of a kind of detection device of earth leakage protective mutual inductor and raising transformer precision
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of detection device of earth leakage protective mutual inductor, including workbench, rack, the first cylinder, the second cylinder, third gas
Cylinder and revolution detection seat；The workbench is horizontally disposed, and on the table, revolution detection seat is vertical for the rotational installation of revolution detection seat
The shaft of setting, revolution detection seat lower end passes through workbench and extends downwardly, and shaft lower end is provided with driving wheel, workbench downside
It is also equipped with driving mechanism, driving mechanism is drivingly connected driving wheel；The revolution detection seat central upper portion is provided with magnet ring placement
Slot turns round on detection seat copper there are two also setting up and presss from both sides；The rack is vertically arranged, and rack is fixedly connected with workbench, in rack
Sliding rail is installed, sliding rail level is laid with, and slide is slidably fitted on sliding rail, third cylinder is mounted in rack, and third cylinder
Telescopic end be connected to slide；First cylinder and the second cylinder are installed on slide, the telescopic end installation of the first cylinder
There is inlet wire current line, the telescopic end of the second cylinder, which is equipped with, gets pen ready.
As a further solution of the present invention：It is provided with bearing between the workbench and shaft.
As further scheme of the invention：The driving mechanism is drivingly connected driving wheel by belt.
A method of the raising transformer precision based on above-mentioned earth leakage protective mutual inductor testing apparatus, steps are as follows：
1) mutual inductor magnet ring is placed in the magnet ring placing groove on revolution detection seat, and is clamped respectively by two copper folders
Two output pins of mutual inductor magnet ring；
2) the first cylinder extends, and the inlet wire current line of its end is stretched into the centre bore of mutual inductor magnet ring；
3) voltage output value between two copper folders at this time is detected, and is recorded；
4) driving mechanism starts, and revolution detection seat is driven to turn to multiple orientation, in the process, detects and is recorded in
Voltage output value under each orientation between two copper folders, after detection, the first cylinder retracted for clearance；
5) voltage output value by all acquisitions is compared, and finds out the orientation corresponding to minimum voltage output value,
The orientation is as top optimization direction；
6) driving mechanism starts, and revolution detection seat is driven to turn to top optimization direction；
7) third cylinder starts, and slide is driven to be moved horizontally along sliding rail, and the second cylinder is made to be located exactly at revolution detection seat
Surface；
8) the second cylinder extends, and is got ready on mutual inductor magnet ring by getting pen ready and made marks, after getting ready, the second gas
Cylinder retracted for clearance, then, third cylinder start and reset；
9) the mutual inductor magnet ring after label is removed, using the mark point on mutual inductor magnet ring as standard, makes electric leakage and protect
Protect device, you can.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the method for the raising transformer precision is the operation principle based on earth leakage protective device, by detecting mutual inductor magnet ring
The voltage output value in each orientation puts the electric leakage made as standard to find the minimum point of voltage output value using this
Protector precision will be enhanced.
2, the structure of the detecting device of the earth leakage protective mutual inductor used in the method for the raising transformer precision is simple, makes and holds
Easily, compared with purchasing high performance steelmaking equipment, cost is greatly reduced, can be improved in the case where putting into low cost made
The sensitivity of the earth leakage protective device of work is conducive to improve the performance of enterprises, even if in addition, high performance steelmaking equipment will reach enough
The uniformity, it is also desirable to the longer steel-making time, considerably increase the consumed energy, improve being fabricated to for earth leakage protective device
This.
Description of the drawings
Fig. 1 is the positive structure schematic of the detection device of earth leakage protective mutual inductor.
Fig. 2 is the side structure schematic diagram of the detection device of earth leakage protective mutual inductor.
In figure：1- workbench, 2- racks, 3- sliding rails, 4- slides, the first cylinders of 5-, the second cylinders of 6-, 7- thirds cylinder,
8- revolution detections seat, 9- driving wheels, 10- belts, 11- driving mechanisms.
Specific implementation mode
Technical scheme of the present invention is described in more detail With reference to embodiment.
Please refer to Fig.1-2, a kind of detection device of earth leakage protective mutual inductor, including workbench 1, rack 2, the first cylinder 5,
Second cylinder 6, third cylinder 7 and revolution detection seat 8；The workbench 1 is horizontally disposed, and revolution detection seat 8 is rotatably installed in work
Make on platform 1, revolution detection seat 8 is vertically arranged, and the shaft of 8 lower end of revolution detection seat passes through workbench 1 and extends downwardly, workbench
Bearing is provided between 1 and shaft, frictional resistance when being rotated for reducing shaft, shaft lower end is provided with driving wheel 9, work
1 downside of platform is also equipped with driving mechanism 11, and driving mechanism 11 is drivingly connected driving wheel 9, and driving mechanism 11 drives 9 turns of driving wheel
It moves, shaft rotation is driven when driving wheel 9 rotates, the rotation for detecting seat 8 is turned round to realize, in the present embodiment, it is preferred that described
Driving mechanism 11 is drivingly connected driving wheel 9 by belt 10；Revolution detection 8 central upper portion of seat is provided with magnet ring placing groove,
For placing mutual inductor magnet ring to be measured, also set up that there are two copper to press from both sides on revolution detection seat 8, two for clamping magnet ring output end
A pin；The rack 2 is vertically arranged, and rack 2 is fixedly connected with workbench 1, and sliding rail 3 is equipped in rack 2, and sliding rail 3 is horizontal
It is laid with, slide 4 is slidably fitted on sliding rail 3, third cylinder 7 is mounted in rack 2, and the telescopic end of third cylinder 7 is connected to
Slide 4, when third cylinder 7 stretches, it will be able to slide 4 be driven to be moved horizontally along sliding rail 3；First cylinder, 5 and second gas
Cylinder 6 is installed on slide 4, and the telescopic end of the first cylinder 5 is equipped with inlet wire current line, and the telescopic end of the second cylinder 6 is equipped with
Get pen ready.
A method of the raising transformer precision based on above-mentioned detection device, steps are as follows：
1) mutual inductor magnet ring is placed in the magnet ring placing groove on revolution detection seat 8, and is pressed from both sides respectively by two copper folders
Firmly two output pins of mutual inductor magnet ring；
2) the first cylinder 5 extends, and the inlet wire current line of its end is stretched into the centre bore of mutual inductor magnet ring；
3) voltage output value between two copper folders at this time is detected, and is recorded；
4) driving mechanism 11 starts, and revolution detection seat 8 is driven to turn to multiple orientation, in the process, detects and remembers
Record the voltage output value between two copper folders under each orientation, after detection, 5 retracted for clearance of the first cylinder；
5) voltage output value by all acquisitions is compared, and finds out the orientation corresponding to minimum voltage output value,
The orientation is as top optimization direction；
6) driving mechanism 11 starts, and revolution detection seat 8 is driven to turn to top optimization direction；
7) third cylinder 7 starts, and slide 4 is driven to be moved horizontally along sliding rail 3, and the second cylinder 6 is made to be located exactly at revolution detection
The surface of seat 8；
8) the second cylinder 6 extends, and is got ready on mutual inductor magnet ring by getting pen ready and made marks, after getting ready, second
6 retracted for clearance of cylinder, then, third cylinder 7 start and reset；
9) the mutual inductor magnet ring after label is removed, using the mark point on mutual inductor magnet ring as standard, makes electric leakage and protect
Protect device, you can.
The method of above-mentioned raising transformer precision is the operation principle based on earth leakage protective device, by detecting mutual inductor magnet ring
The voltage output value in each orientation puts the electric leakage made as standard to find the minimum point of voltage output value using this
Protector precision will be enhanced.The structure of the detecting device of earth leakage protective mutual inductor used is simple, is easy to make, high with buying
The steelmaking equipment of performance is compared, and cost is greatly reduced, and made electric leakage can be improved in the case where putting into low cost and is protected
The sensitivity for protecting device is conducive to improve the performance of enterprises, even if in addition, high performance steelmaking equipment will reach enough uniformitys,
It is also required to the longer steel-making time, considerably increases the consumed energy, improves the cost of manufacture of earth leakage protective device.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (4)
1. a kind of detection device of earth leakage protective mutual inductor, which is characterized in that including workbench（1）, rack（2）, the first cylinder
（5）, the second cylinder（6）, third cylinder（7）Seat is detected with revolution（8）；The workbench（1）It is horizontally disposed, revolution detection seat
（8）It is rotatably installed in workbench（1）On, revolution detection seat（8）It is vertically arranged, revolution detection seat（8）The shaft of lower end passes through work
Make platform（1）And extend downwardly, shaft lower end is provided with driving wheel（9）, workbench（1）Downside is also equipped with driving mechanism（11）,
Driving mechanism（11）It is drivingly connected driving wheel（9）；The revolution detects seat（8）Central upper portion is provided with magnet ring placing groove, revolution
Detect seat（8）On also set up there are two copper press from both sides；The rack（2）It is vertically arranged, and rack（2）It is fixedly connected with workbench（1）, machine
Frame（2）On sliding rail is installed（3）, sliding rail（3）Level is laid with, sliding rail（3）On be slidably fitted with slide（4）, third cylinder（7）Peace
Mounted in rack（2）On, and third cylinder（7）Telescopic end be connected to slide（4）；First cylinder（5）With the second cylinder（6）
It is installed in slide（4）On, the first cylinder（5）Telescopic end inlet wire current line, the second cylinder are installed（6）Telescopic end installation
Get pen ready.
2. the detection device of earth leakage protective mutual inductor according to claim 1, which is characterized in that the workbench（1）With
Bearing is provided between shaft.
3. the detection device of earth leakage protective mutual inductor according to claim 2, which is characterized in that the driving mechanism（11）
Pass through belt（10）It is drivingly connected driving wheel（9）.
4. a kind of raising transformer precision of the detection device based on any earth leakage protective mutual inductors of claim 1-3
Method, which is characterized in that steps are as follows：
1）Mutual inductor magnet ring is placed on revolution detection seat（8）On magnet ring placing groove in, and clamped respectively by two copper folder
Two output pins of mutual inductor magnet ring；
2）First cylinder（5）Elongation, the inlet wire current line of its end is stretched into the centre bore of mutual inductor magnet ring；
3）The voltage output value between two copper folders at this time is detected, and is recorded；
4）Driving mechanism（11）Start, and drives revolution detection seat（8）Multiple orientation are turned to, in the process, detects and remembers
Record the voltage output value between two copper folders under each orientation, after detection, the first cylinder（5）Retracted for clearance；
5）The voltage output value of all acquisitions is compared, and finds out the orientation corresponding to minimum voltage output value, the party
Position is used as top optimization direction；
6）Driving mechanism（11）Start, and drives revolution detection seat（8）Turn to top optimization direction；
7）Third cylinder（7）Start, drives slide（4）Along sliding rail（3）It moves horizontally, makes the second cylinder（6）It is located exactly at revolution
Detect seat（8）Surface；
8）Second cylinder（6）Elongation, and got ready on mutual inductor magnet ring by getting pen ready and made marks, after getting ready, the second gas
Cylinder（6）Retracted for clearance, then, third cylinder（7）Start and resets；
9）Mutual inductor magnet ring after label is removed, using the mark point on mutual inductor magnet ring as standard, it is mutual to make earth leakage protective
Sensor, you can.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378548.9A CN105954701B (en) | 2016-05-31 | 2016-05-31 | A kind of detection device of earth leakage protective mutual inductor and the method for improving transformer precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378548.9A CN105954701B (en) | 2016-05-31 | 2016-05-31 | A kind of detection device of earth leakage protective mutual inductor and the method for improving transformer precision |
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| Publication Number | Publication Date |
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| CN105954701A CN105954701A (en) | 2016-09-21 |
| CN105954701B true CN105954701B (en) | 2018-10-12 |
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| CN116794355B (en) * | 2023-05-25 | 2024-04-05 | 常州工程职业技术学院 | Electrical part quality detection workbench |
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| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knob and electric appliance product |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2509634B2 (en) * | 1987-09-14 | 1996-06-26 | 株式会社東芝 | Current detector |
| CZ2013205A3 (en) * | 2013-03-22 | 2014-10-22 | Rieter Cz S.R.O. | Device for detecting position of rotating working means in active magnetic bearing |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191487Y (en) * | 1994-06-14 | 1995-03-08 | *** | residual current action protector |
| CN2452032Y (en) * | 2000-11-03 | 2001-10-03 | 山东省冶金科学研究院 | Magnetic flux distribution signal collecting device for magnet |
| CN101819421A (en) * | 2010-03-12 | 2010-09-01 | 洛阳世必爱特种轴承有限公司 | Angular displacement measuring and controlling device for revolving platform |
| CN104007386A (en) * | 2014-05-28 | 2014-08-27 | 中广核核电运营有限公司 | Comprehensive offline test platform of generator rotor insulation measurement device |
| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knob and electric appliance product |
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