CN106841705A - A kind of transformer resistance tester being switched fast - Google Patents
A kind of transformer resistance tester being switched fast Download PDFInfo
- Publication number
- CN106841705A CN106841705A CN201710203951.2A CN201710203951A CN106841705A CN 106841705 A CN106841705 A CN 106841705A CN 201710203951 A CN201710203951 A CN 201710203951A CN 106841705 A CN106841705 A CN 106841705A
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- China
- Prior art keywords
- test
- lead
- switching device
- switched fast
- signal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of transformer resistance tester being switched fast, including test box, and it is arranged at the test module inside test box, test module is provided with 2 signal ends, and test box is connected with least 3 test leads, and test module is connected with switching circuit, switching circuit includes switching device, the two ends of switching device are respectively arranged with multiple output ends and multiple inputs, and multiple output ends are connected with test lead respectively, and multiple inputs are respectively with signal end to being connected.Test lead is switched fast using switching circuit, the step of instead of in traditional test technique by artificial thread-changing, when avoiding replacing wire clamp every time, wire clamp plus pinch position, dynamics, contact surface can caused by human factor difference, and cause winding performance erroneous judgement of the testing crew according to result of the test to transformer, the present invention improves test accuracy, and then improve the advantage of operating efficiency with test period is shortened.
Description
Technical field
The present invention relates to electric test device field, surveyed in particular to a kind of transformer resistance being switched fast
Examination instrument.
Background technology
DCR of Transformer test is the experiment of transformer semi-finished product, finished product delivery test, installation, commissioning test and electric power
Department's preventive trial must have a project, can effective detection and in time find transformer coil manufacturing defect (such as selection it is improper,
Welding, connecting portion loosen, lack stock, broken string etc.) and after running appearance potential safety hazard.In either newly dispatch from the factory or operation
Transformer, the requirement according to code will carry out D.C. resistance test, because the wiring group of transformer is different, test connection side
Method is also different.The boundary section of transformer includes high-pressure side and low-pressure end, and high-pressure side has 3 ports, respectively A ends, B ends, C-terminal,
Low-pressure end has 4 ports, respectively a ends, b ends, c ends and 0 end, and also including neutral end N-terminal, traditional test method is by mutually surveying
Amount, three-phase transformer need to be measured in three times, thus the on-the-spot test time is long, be operated very cumbersome.Existing D.C. resistance
Tester only has two lead-out wires, can only test one group of coil therein during experiment every time, and the test of other coils can only pass through
Manually change the method for wire clamp to complete, because transformer lead-out wire is very high apart from ground, needed during wire clamp is changed
The continuous transformer upper and lower back and forth of testing crew, artificial extends D.C. resistance test period.And when changing wire clamp every time, wire clamp
Nip position, dynamics, contact surface can caused by human factor difference, result of the test certainly will be also different, are so possible to
Cause winding performance erroneous judgement of the testing crew according to result of the test to transformer.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem in correlation technique to a certain extent.Therefore, this hair
Bright to propose a kind of transformer resistance tester being switched fast, its test signal that can be switched fast measured target is saved
The step of conversion clip, improve testing efficiency.
To achieve the above object, technical scheme is as follows：
A kind of transformer resistance tester being switched fast, including test box, and it is arranged at the test mould inside test box
Block, test module is provided with 2 signal ends, and test box is connected with least 3 test leads, and test module is connected with switching electricity
Road, switching circuit includes switching device, and the two ends of switching device are respectively arranged with multiple output ends and multiple inputs, multiple defeated
Go out end to be connected with test lead respectively, multiple inputs are respectively with signal end to being connected.
It is further improved according to above-mentioned technical proposal, the quantity of test lead is set to 4, including first draws
Line, the second lead, the 3rd lead and the 4th lead, signal segment include the first signal end and secondary signal end, output end and input
The quantity at end is disposed as 8, and wherein output end includes first end, the 3rd end, the 5th end, the 7th end, the 9th end, the 11st
End, the 13rd end, the 15th end, input include the second end, the 4th end, the 6th end, the 8th end, the tenth end, the 12nd end, the
14 ends, the 16th end, the first lead are connected with first end, the 3rd end, the 9th end simultaneously, the second lead simultaneously with the 5th end,
Tenth one end connects, the 3rd lead simultaneously with the 7th end, the tenth three-terminal link, the 4th lead is connected with the 15th end, and first believes
Number end simultaneously with the second end, the 6th end, the tenth six end connecting, secondary signal end simultaneously with the 4th end, the 8th end, the tenth end, the
12 ends, the connection of the 14th end.
It is further improved according to above-mentioned technical proposal, is provided with test box for rotating regulation switching device
Knob, the quantity of the changeable test point of switching device is set to be set between 6, the different test points of knob switching device correspondence
Angle is equipped with, angle is set to 60 degree between adjacent gear positions.
It is further improved according to above-mentioned technical proposal, the examination for being turned on and off tester is provided with casing
Test button, and be connected with test module, regulation stall knob for Regulate signal size.
It is further improved according to above-mentioned technical proposal, the display screen being connected with test module is provided with casing.
The beneficial effects of the invention are as follows：The present invention is connected with least 3 test leads by test box, and test module connects
Switching circuit is connected to, switching circuit includes switching device, and the two ends of switching device are respectively arranged with multiple output ends and multiple is defeated
Enter end, multiple output ends are connected with test lead respectively, multiple inputs are respectively with signal end to being connected.Using switching circuit
Test lead is switched fast, the step of instead of in traditional test technique by artificial thread-changing, it is to avoid each replacing wire clamp
When, wire clamp plus pinch position, dynamics, contact surface can caused by human factor difference, and cause testing crew according to experiment tie
Winding performance erroneous judgement of the fruit to transformer, the present invention improves test accuracy, and then improve work with test period is shortened
Make the advantage of efficiency.
Brief description of the drawings
It is described further below in conjunction with accompanying drawing and example.
Fig. 1 is structural representation of the invention.
Fig. 2 is the schematic diagram of the switching circuit in the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Referring to Figures 1 and 2, a kind of transformer resistance tester being switched fast, including test box 001, and set
Test module 002 inside test box 001, test module 002 is provided with 002 signal end, and test box 001 is connected with least
3 test leads, test module 002 is connected with switching circuit, and switching circuit includes switching device 003, the two of switching device 003
End is respectively arranged with multiple output ends and multiple inputs, and multiple output ends are connected with test lead respectively, multiple inputs
Respectively with signal end to being connected.During test, test lead is connected with the high-voltage terminal or low voltage terminal of transformer respectively, leads to
The resistance crossed between the terminals of test required for switching device 003 is selected, the step of so as to save artificial thread-changing, shortens examination
The time is tested, test accuracy is improve, and then improve operating efficiency.
Preferably, the quantity of test lead is set to 4, including the first lead 004, the second lead 005, the 3rd lead
006 and the 4th lead 007, signal segment includes the quantity at the first signal end 021 and secondary signal end 022, output end and input
Be disposed as 8, wherein output end include first end 1, the 3rd end 3, the 5th end 5, the 7th end 7, the 9th end 9, the tenth one end 11,
13rd end 13, the 15th end 15, input include the second end 2, the 4th end 4, the 6th end 6, the 8th end 8, the tenth end the 10, the tenth
Two ends 12, the 14th end 14, the 16th end 16, the first lead 004 are connected with first end 1, the 3rd end 3, the 9th end 9 simultaneously, the
Two leads 005 are connected with the 5th end 5, the tenth one end 11 simultaneously, and the 3rd lead 006 connects with the 7th end 7, the 13rd end 13 simultaneously
Connect, the 4th lead 007 is connected with the 15th end 15, the first signal end 021 simultaneously with the second end 2, the 6th end 6, the 16th end 16
Connection, secondary signal end 022 is connected with the 4th end 4, the 8th end 8, the tenth end 10, the 12nd end 12, the 14th end 14 simultaneously.
It is further improved according to above-mentioned technical proposal, is provided with test box 001 for rotating regulation switching dress
03 knob 008 is set to 0, the quantity of the changeable test point of switching device 003 is set to 6, and knob 008 rotates switching device
Angle is provided between the different test points of 003 correspondence, angle is set to 60 degree between adjacent gear positions.Test gear in the present invention is total to
6, when knob 008 point to 0,60 degree, 120 degree, 180 degree, 240 degree, 300 degree when, respectively expression measuring transformer terminals AB,
Resistance value between BC, CA, a0, b0, c0, ab, bc, ac, wherein AB and ab, BC and bc, CA and ca share same angle respectively
Gear.
During resistance between testing high voltage binding post, the first lead 004, the second lead 005, the 3rd lead 006 are distinguished
Connect on three ports A ends of high-pressure side, B ends, C-terminal and the N-terminal of transformer, you can selected by switching device 003 thirdly
Annexation between individual binding post, can measure the resistance value of AB, BC, CA.
During resistance between test low-voltage wiring terminal, the first lead 004, the second lead 005, the 3rd lead 006 and the
Four leads 007 connect 4 ports A ends, B ends, C-terminal and 0 end of the low-pressure end of transformer respectively, you can by switching device
Annexation between 003 4 low-voltage wiring terminals of selection, can measure the resistance value between a0, b0, c0, ab, bc, ac.
It is further improved according to above-mentioned technical proposal, the operation of tester, is provided with use for convenience on casing
In the test button 009 for being turned on and off tester, and be connected with test module 002, tune for Regulate signal size
Section gear knob 010.When test starts, resistance value is tested by pressing test button 009, after test terminates, again
Press test button 009, you can disconnect, stop test.When resistance value exceed indication range, gear-adjustable knob 010,
Can select appropriate gear to be tested, improve accuracy.
It is further improved according to above-mentioned technical proposal, the data of read test, are provided with casing for convenience
The display screen being connected with test module 002.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention is described with simplified, must have specific orientation, Yi Te rather than the device or element for indicating or imply meaning
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that at least two, such as two
It is individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element.For the ordinary skill in the art, can be according to specific feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to including the first and second features be not directly contact but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
What combined in an appropriate manner in one or more embodiments or example.Additionally, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (5)
1. a kind of transformer resistance tester being switched fast, including test box, and it is arranged at the test inside test box
Module, the test module is provided with 2 signal ends, it is characterised in that：The test box is connected with least 3 test leads,
The test module is connected with switching circuit, and the switching circuit includes switching device, and the two ends of the switching device set respectively
Multiple output ends and multiple inputs are equipped with, multiple output ends are connected with test lead respectively, multiple inputs
Respectively with signal end to being connected.
2. a kind of transformer resistance tester being switched fast according to claim 1, it is characterised in that：The test
The quantity of lead is set to 4, including the first lead, the second lead, the 3rd lead and the 4th lead, and the signal segment includes the
The quantity of one signal end and secondary signal end, the output end and input is disposed as 8, wherein the output end includes the
One end, the 3rd end, the 5th end, the 7th end, the 9th end, the tenth one end, the 13rd end, the 15th end, the input include the
Two ends, the 4th end, the 6th end, the 8th end, the tenth end, the 12nd end, the 14th end, the 16th end, first lead is simultaneously
It is connected with first end, the 3rd end, the 9th end, second lead is connected with the 5th end, the tenth one end simultaneously, the 3rd lead
Simultaneously with the 7th end, the tenth three-terminal link, the 4th lead is connected with the 15th end, and first signal end is while with second
End, the 6th end, the tenth six end connecting, the secondary signal end simultaneously with the 4th end, the 8th end, the tenth end, the 12nd end, the tenth
Four ends connect.
3. a kind of transformer resistance tester being switched fast according to claim 1, it is characterised in that：The test
The knob for rotating regulation switching device is provided with case, the quantity of the changeable test point of the switching device is set to 6
It is individual, angle is provided between the corresponding different test points of the knob switching device, angle is set to 60 degree between adjacent gear positions.
4. a kind of transformer resistance tester being switched fast according to claim 1, it is characterised in that：The casing
On be provided with test button for being turned on and off tester, and be connected with test module, for Regulate signal size
Regulation stall knob.
5. a kind of transformer resistance tester being switched fast according to claim 1, it is characterised in that：The casing
On be provided with the display screen being connected with test module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203951.2A CN106841705A (en) | 2017-03-30 | 2017-03-30 | A kind of transformer resistance tester being switched fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203951.2A CN106841705A (en) | 2017-03-30 | 2017-03-30 | A kind of transformer resistance tester being switched fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106841705A true CN106841705A (en) | 2017-06-13 |
Family
ID=59141674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203951.2A Pending CN106841705A (en) | 2017-03-30 | 2017-03-30 | A kind of transformer resistance tester being switched fast |
Country Status (1)
| Country | Link |
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| CN (1) | CN106841705A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528571A (en) * | 2017-09-07 | 2017-12-29 | 成都航天通信设备有限责任公司 | A kind of FPGA emulators switching device and method |
| CN109066662A (en) * | 2018-08-29 | 2018-12-21 | 国网河北省电力有限公司电力科学研究院 | A kind of switching device and switching systems |
| CN110794179A (en) * | 2019-11-27 | 2020-02-14 | 国网天津市电力公司 | Quick split-phase switcher of alternating current loop |
| CN110888084A (en) * | 2019-11-27 | 2020-03-17 | 天威保变（秦皇岛）变压器有限公司 | Method for measuring short-circuit point of winding coil of large transformer |
| CN110987443A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Rapid switching measurement device and method for couple inspection of aircraft engine |
| CN112147486A (en) * | 2020-09-23 | 2020-12-29 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
| CN112147486B (en) * | 2020-09-23 | 2024-06-11 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
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| CN202093096U (en) * | 2011-06-09 | 2011-12-28 | 上海市电力公司 | Low-voltage short-circuit impedance test device of transformer |
| CN202522626U (en) * | 2012-03-07 | 2012-11-07 | 中国长江三峡集团公司 | Wiring switching apparatus used for measuring direct current resistance of transformer |
| CN203365548U (en) * | 2013-07-23 | 2013-12-25 | 国家电网公司 | Transformer DC resistance tester |
| CN105158565A (en) * | 2015-07-22 | 2015-12-16 | 国网山东省电力公司日照供电公司 | Auxiliary apparatus and method for fast testing DC resistance of large power transformer |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093096U (en) * | 2011-06-09 | 2011-12-28 | 上海市电力公司 | Low-voltage short-circuit impedance test device of transformer |
| CN202522626U (en) * | 2012-03-07 | 2012-11-07 | 中国长江三峡集团公司 | Wiring switching apparatus used for measuring direct current resistance of transformer |
| CN203365548U (en) * | 2013-07-23 | 2013-12-25 | 国家电网公司 | Transformer DC resistance tester |
| CN105158565A (en) * | 2015-07-22 | 2015-12-16 | 国网山东省电力公司日照供电公司 | Auxiliary apparatus and method for fast testing DC resistance of large power transformer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528571A (en) * | 2017-09-07 | 2017-12-29 | 成都航天通信设备有限责任公司 | A kind of FPGA emulators switching device and method |
| CN107528571B (en) * | 2017-09-07 | 2021-01-26 | 成都航天通信设备有限责任公司 | FPGA simulator switching device and method |
| CN109066662A (en) * | 2018-08-29 | 2018-12-21 | 国网河北省电力有限公司电力科学研究院 | A kind of switching device and switching systems |
| CN110987443A (en) * | 2019-11-22 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Rapid switching measurement device and method for couple inspection of aircraft engine |
| CN110987443B (en) * | 2019-11-22 | 2021-08-24 | 中国航发沈阳黎明航空发动机有限责任公司 | Rapid switching measurement device and method for couple inspection of aircraft engine |
| CN110794179A (en) * | 2019-11-27 | 2020-02-14 | 国网天津市电力公司 | Quick split-phase switcher of alternating current loop |
| CN110888084A (en) * | 2019-11-27 | 2020-03-17 | 天威保变（秦皇岛）变压器有限公司 | Method for measuring short-circuit point of winding coil of large transformer |
| CN112147486A (en) * | 2020-09-23 | 2020-12-29 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
| CN112147486B (en) * | 2020-09-23 | 2024-06-11 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
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