CN105954701A - Detection device for electric leakage protection mutual inductor, and method for improving precision of mutual inductor - Google Patents
Detection device for electric leakage protection mutual inductor, and method for improving precision of mutual inductor Download PDFInfo
- Publication number
- CN105954701A CN105954701A CN201610378548.9A CN201610378548A CN105954701A CN 105954701 A CN105954701 A CN 105954701A CN 201610378548 A CN201610378548 A CN 201610378548A CN 105954701 A CN105954701 A CN 105954701A
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- cylinder
- transformer
- magnet ring
- detection seat
- earth leakage
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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
Abstract
The invention discloses a detection device for an electric leakage protection mutual inductor, and also discloses a method for improving the precision of the mutual inductor based on the device. The method is based on the working principle of an electric leakage protector, and detects the voltage output values of a mutual inductor magnetic ring at all azimuths, so as to search the minimum point of the voltage output values. The minimum point is taken as a standard, so the precision of a manufactured electric leakage protector will be improved. The device employed by the method is simple in structure, and is easy to manufacture. Compared with high-performance steelmaking equipment, the device greatly reduces the cost, can improve the sensitivity of the manufactured electric leakage protector under the condition of low cost, and facilitates the improvement of the enterprise benefits.
Description
Technical field
The present invention relates to electric elements field, the detection device of a kind of earth leakage protective transformer and raising transformer precision
Method.
Background technology
Since man invented and since making electricity consumption, it is a lot of convenient that electricity can not only bring to the mankind, also can bring drowned to the mankind
Calamity.It may burn out electrical equipment, causes fire, or makes people get an electric shock.If there being a kind of equipment that people can be made to make safely
Electricity consumption, it will avoid the most unnecessary loss.So while omnifarious electrical equipment is comed one after another, being also born each
The protector of formula various kinds.Wherein having a kind of 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 to get an electric shock and the protection electrical equipment of electrical fire for the person anti-when circuit or electrical apparatus insulation impaired generation shorted to earth, one
As be installed on the electric power incoming line of receptacle loop Shang Hequan building consumer unit of each household distribution box.Earth leakage protective device experienced by one
Very long development course, commonly uses for the whole world the most.
Transformer is the important composition parts of earth leakage protective device, and the operation principle of earth leakage protective device is: power supply goes line to pass mutual inductance
Device connects the input of electrical appliance, and the outfan of electrical appliance connects power return, and power return is through transformer, normally
Under state, power supply goes line with the electric current on power return owing to size is identical, in opposite direction, and the magnetic field therefore produced mutually is supported
Disappearing, transformer also would not produce induced voltage, and when circuit produces electric leakage, power supply goes line with the electric current on power return not
The most identical, curent change makes transformer produce induced voltage, and this induced voltage continues as the driving voltage driving of relay switch
Electric switch works, so that circuit disconnects, the most just current source is opened with electrical appliance partition, it is achieved creepage protection function.One
For as, the driving voltage of relay requires the smaller the better, and driving voltage is the least, and the work of earth leakage protective device during electric leakage accident occurs
Make more rapidly, sensitiveer, safety is higher.But it practice, the magnet ring made due to transformer usually non-crystalline material,
And non-crystalline material is a kind of mixture, therefore amorphous magnet ring each several part is uneven, and the performance also having resulted in amorphous magnet ring is uneven
Even, so even without electric leakage, still have faint voltage output, this has resulted in error, has affected earth leakage protective device
Precision.Currently in order to solve this problem, usually use extraordinary steelmaking equipment, improve the uniformity of material, as
This, the most with high costs, and also the manufactured amorphous magnet ring uniformity is the most not ideal enough, has also resulted in the magnetic of transformer
The magnetic strength amount of ring each several part yet suffers from deviation, thus result in transformer and can produce the error in output in actual applications,
Affect sensitivity and the safety of earth leakage protective device.
Summary of the invention
The detection device that it is an object of the invention to provide a kind of earth leakage protective transformer and the method improving transformer precision, with
The problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
The detection device of a kind of earth leakage protective transformer, including workbench, frame, the first cylinder, the second cylinder, the 3rd gas
Cylinder and revolution detection seat；Described workbench is horizontally disposed with, and revolution detection seat is rotatably installed on workbench, and revolution detection seat erects
Straight setting, the rotating shaft of revolution detection seat lower end through workbench and downwardly extends, and rotating shaft lower end is provided with driving wheel, workbench
Downside is also equipped with drive mechanism, drive mechanism drive connection driving wheel；Described revolution detection seat central upper portion is provided with magnet ring
Placing trough, revolution detection seat is additionally provided with two copper folders；Described frame is vertically arranged, and frame fixes connecting working table,
Being provided with slide rail in frame, slide rail level is laid, and slide rail is slidably fitted with slide, and the 3rd cylinder is arranged in frame, and
The telescopic end of the 3rd cylinder is connected to slide；Described first cylinder and the second cylinder are installed on slide, stretching of the first cylinder
Contracting end is provided with inlet wire current line, and the telescopic end of the second cylinder is provided with gets pen ready.
As the further scheme of the present invention: be provided with bearing between described workbench and rotating shaft.
As the present invention further scheme: described drive mechanism connects driving wheel by belt drives.
A kind of method improving transformer precision based on above-mentioned earth leakage protective mutual inductor testing apparatus, step is as follows:
1) transformer magnet ring is placed in the magnet ring placing trough on revolution detection seat, and is clamped respectively mutually by two copper folders
Two outfan pins of sensor magnet ring；
2) the first cylinder elongation, stretches into the inlet wire current line of its termination in the centre bore of transformer magnet ring；
3) voltage output value between detection now two copper folders, and record；
4) drive mechanism starts, and drives revolution detection seat to turn to multiple orientation, in the process, detect and record
Voltage output value between two copper press from both sides under each orientation, after detection, the first cylinder retracted for clearance；
5) voltage output value of all acquisitions is compared, and find out the orientation corresponding to minimum voltage output value, should
Orientation is as top optimization direction；
6) drive mechanism starts, and drives revolution detection seat to turn to top optimization direction；
7) the 3rd cylinder starts, and drives slide to move horizontally along slide rail, makes the second cylinder just be located exactly at revolution detection seat
Top；
8) the second cylinder elongation, and get ready on transformer magnet ring make marks by getting pen ready, after getting ready, the second gas
Cylinder retracted for clearance, then, the 3rd cylinder starts and resets；
9) the transformer magnet ring after labelling is taken off, using the labelling point on transformer magnet ring as standard, make earth leakage protective
Device,.
Compared with prior art, the invention has the beneficial effects as follows:
1, the method for this raising transformer precision is operation principle based on earth leakage protective device, each by detection transformer magnet ring
The voltage output value in individual orientation, the point minimum to find voltage output value, using this point as standard, the electric leakage made
Protector precision will be enhanced.
2, the structure of the detecting device of the earth leakage protective transformer used by method of this raising transformer precision is simple, makes easily,
Compared with purchasing high performance steelmaking equipment, greatly reduce cost, it is possible to improve made in the case of putting into low cost
The sensitivity of earth leakage protective device, be conducive to improving the performance of enterprises, even if it addition, high performance steelmaking equipment to reach enough
The uniformity, it is also desirable to the longer steel-making time, considerably increase the consumed energy, improve the making of earth leakage protective device
Cost.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the detection device of earth leakage protective transformer.
Fig. 2 is the side structure schematic diagram of the detection device of earth leakage protective transformer.
In figure: 1-workbench, 2-frame, 3-slide rail, 4-slide, 5-the first cylinder, 6-the second cylinder, 7-the 3rd cylinder,
8-revolution detection seat, 9-driving wheel, 10-belt, 11-drive mechanism.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is described in more detail.
Refer to Fig. 1-2, the detection device of a kind of earth leakage protective transformer, including workbench 1, frame the 2, first cylinder 5,
Second cylinder the 6, the 3rd cylinder 7 and revolution detection seat 8；Described workbench 1 is horizontally disposed with, and revolution detection seat 8 rotates peace
Being contained on workbench 1, turn round detection seat 8 and be vertically arranged, the rotating shaft of revolution detection seat 8 lower end is through workbench 1 downwards
Extending, be provided with bearing between workbench 1 and rotating shaft, frictional resistance during for reducing axis of rotation, rotating shaft lower end is arranged
There is driving wheel 9, be also equipped with drive mechanism 11, drive mechanism 11 drive connection driving wheel 9 on the downside of workbench 1, drive machine
Structure 11 drives driving wheel 9 to rotate, and drives axis of rotation, thus realize the rotation of revolution detection seat 8 when driving wheel 9 rotates,
In the present embodiment, it is preferred that described drive mechanism 11 is by belt 10 drive connection driving wheel 9；Described revolution detection seat
8 central upper portion are provided with magnet ring placing trough, for placing transformer magnet ring to be measured, revolution detection seat 8 are additionally provided with two
Individual copper presss from both sides, for clamping two pins of magnet ring outfan；Described frame 2 is vertically arranged, and frame 2 fixing connection work
Platform 1, frame 2 is provided with slide rail 3, and slide rail 3 level is laid, and slide rail 3 is slidably fitted with slide 4, the 3rd cylinder 7
It is arranged in frame 2, and the telescopic end of the 3rd cylinder 7 is connected to slide 4, when the 3rd cylinder 7 stretches, it becomes possible to band
Dynamic slide 4 moves horizontally along slide rail 3；Described first cylinder 5 and the second cylinder 6 are installed on slide 4, the first cylinder
The telescopic end of 5 is provided with inlet wire current line, and the telescopic end of the second cylinder 6 is provided with gets pen ready.
A kind of method improving transformer precision based on above-mentioned detection equipment, step is as follows:
1) transformer magnet ring is placed in the magnet ring placing trough on revolution detection seat 8, and is clamped respectively by two copper folders
Two outfan pins of transformer magnet ring；
2) the first cylinder 5 extends, and is stretched into by the inlet wire current line of its termination in the centre bore of transformer magnet ring；
3) voltage output value between detection now two copper folders, and record；
4) drive mechanism 11 starts, and drives revolution detection seat 8 to turn to multiple orientation, in the process, detect and remember
Record the voltage output value between two copper folders under each orientation, after detection, the first cylinder 5 retracted for clearance；
5) voltage output value of all acquisitions is compared, and find out the orientation corresponding to minimum voltage output value, should
Orientation is as top optimization direction；
6) drive mechanism 11 starts, and drives revolution detection seat 8 to turn to top optimization direction；
7) the 3rd cylinder 7 starts, and drives slide 4 to move horizontally along slide rail 3, makes the second cylinder 6 be located exactly at revolution inspection
Survey the surface of seat 8；
8) the second cylinder 6 extends, and gets ready on transformer magnet ring make marks by getting pen ready, after getting ready, and second
Cylinder 6 retracted for clearance, then, the 3rd cylinder 7 starts and resets；
9) the transformer magnet ring after labelling is taken off, using the labelling point on transformer magnet ring as standard, make earth leakage protective
Device,.
The method of above-mentioned raising transformer precision is operation principle based on earth leakage protective device, by detection transformer magnet ring each
The voltage output value in orientation, the point minimum to find voltage output value, protect using this point as standard, the electric leakage made
Protect device precision will be enhanced.The structure of the detecting device of earth leakage protective transformer used is simple, makes easily, with buying height
The steelmaking equipment of performance is compared, and greatly reduces cost, it is possible to the electric leakage made by improving in the case of putting into low cost is protected
Protect the sensitivity of device, be conducive to improving the performance of enterprises, even if it addition, high performance steelmaking equipment to reach enough uniformitys,
It is also required to the longer steel-making time, considerably increases the consumed energy, improve the cost of manufacture of earth leakage protective device.
Above the better embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment,
In the ken that those of ordinary skill in the art is possessed, it is also possible to make each on the premise of without departing from present inventive concept
Plant change.
Claims (4)
1. the detection device of an earth leakage protective transformer, it is characterised in that include workbench (1), frame (2),
First cylinder (5), the second cylinder (6), the 3rd cylinder (7) and revolution detection seat (8)；Described workbench (1)
Being horizontally disposed with, revolution detection seat (8) is rotatably installed on workbench (1), and revolution detection seat (8) is vertically arranged, and returns
The rotating shaft turning detection seat (8) lower end through workbench (1) and downwardly extends, and rotating shaft lower end is provided with driving wheel (9),
Workbench (1) downside is also equipped with drive mechanism (11), drive mechanism (11) drive connection driving wheel (9)；Described
Revolution detection seat (8) central upper portion is provided with magnet ring placing trough, and revolution detection seat (8) is additionally provided with two copper folders；Institute
State frame (2) to be vertically arranged, and the fixing connecting working table (1) of frame (2), frame (2) is provided with slide rail (3),
Slide rail (3) level is laid, and slide rail (3) is slidably fitted with slide (4), and the 3rd cylinder (7) is arranged on frame (2)
On, and the telescopic end of the 3rd cylinder (7) is connected to slide (4)；Described first cylinder (5) and the second cylinder (6) are equal
Being arranged on slide (4), the telescopic end of the first cylinder (5) is provided with inlet wire current line, stretching of the second cylinder (6)
End is provided with gets pen ready.
The detection device of earth leakage protective transformer the most according to claim 1, it is characterised in that described workbench (1)
And it is provided with bearing between rotating shaft.
The detection device of earth leakage protective transformer the most according to claim 2, it is characterised in that described drive mechanism
(11) by belt (10) drive connection driving wheel (9).
4. the raising transformer precision of a detection device based on the arbitrary described earth leakage protective transformer of claim 1-3
Method, it is characterised in that step is as follows:
1) transformer magnet ring is placed in the magnet ring placing trough in revolution detection seat (8), and is pressed from both sides respectively by two copper folders
Live two outfan pins of transformer magnet ring；
2) the first cylinder (5) elongation, stretches into the inlet wire current line of its termination in the centre bore of transformer magnet ring；
3) voltage output value between detection now two copper folders, and record；
4) drive mechanism (11) starts, and drives revolution detection seat (8) to turn to multiple orientation, in the process, inspection
Surveying and record the voltage output value between two copper folders under each orientation, after detection, the first cylinder (5) shrinks multiple
Position；
5) voltage output value of all acquisitions is compared, and find out the orientation corresponding to minimum voltage output value, should
Orientation is as top optimization direction；
6) drive mechanism (11) starts, and drives revolution detection seat (8) to turn to top optimization direction；
7) the 3rd cylinder (7) starts, and drives slide (4) to move horizontally along slide rail (3), makes the second cylinder (6) proper
It is located at turn around well detecting the surface of seat (8)；
8) the second cylinder (6) elongation, and get ready on transformer magnet ring make marks by getting pen ready, after getting ready, the
Two cylinders (6) retracted for clearance, then, the 3rd cylinder (7) starts and resets；
9) the transformer magnet ring after labelling is taken off, using the labelling point on transformer magnet ring as standard, make earth leakage protective
Device,.
Priority Applications (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 |
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105954701A true CN105954701A (en) | 2016-09-21 |
| CN105954701B CN105954701B (en) | 2018-10-12 |
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ID=56908429
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610378548.9A Active 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN105954701B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116794355A (en) * | 2023-05-25 | 2023-09-22 | 常州兴连栋机械科技有限公司 | Electrical part quality detection workbench |
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| 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 |
| US20140285186A1 (en) * | 2013-03-22 | 2014-09-25 | Miroslav Stusak | Device for decting position of rotating working means in active magnetic bearing |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6472075A (en) * | 1987-09-14 | 1989-03-16 | Toshiba Corp | Current detector |
| CN2191487Y (en) * | 1994-06-14 | 1995-03-08 | 张宝明 | 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 |
| US20140285186A1 (en) * | 2013-03-22 | 2014-09-25 | Miroslav Stusak | Device for decting position of rotating working means in active magnetic bearing |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116794355A (en) * | 2023-05-25 | 2023-09-22 | 常州兴连栋机械科技有限公司 | Electrical part quality detection workbench |
| 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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| Publication number | Publication date |
|---|---|
| CN105954701B (en) | 2018-10-12 |
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