CN108051670A - A kind of transformer testing frock - Google Patents
A kind of transformer testing frock Download PDFInfo
- Publication number
- CN108051670A CN108051670A CN201711283058.1A CN201711283058A CN108051670A CN 108051670 A CN108051670 A CN 108051670A CN 201711283058 A CN201711283058 A CN 201711283058A CN 108051670 A CN108051670 A CN 108051670A
- Authority
- CN
- China
- Prior art keywords
- transformer
- plc controller
- cabinet
- contactor
- test
- Prior art date
- 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
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention relates to a kind of transformer testing frocks, including variable-frequency power sources, tunable load resistor, PLC controller, touch-screen display control program and test cabinet, wherein, PLC controller and touch-screen display control program are arranged on the upper end of the test cabinet, fixed seat and A.C. contactor are equipped in the middle cabinet body of test cabinet, fixed seat is used to place tested transformer, A.C. contactor connects variable-frequency power sources and PLC controller, A.C. contactor is additionally operable to connect transformer to be measured, and PLC controller controls variable-frequency power sources to provide voltage fluctuation and voltge surge for tested transformer；The status information that touch-screen display control program connects and shows PLC controller setup parameter information and test, tunable load resistor are arranged in the lower section cabinet of test cabinet, and tunable load resistor is used to connect the output terminal of tested transformer.Transformer testing frock provided by the invention, which can be realized, assesses the actual use testing reliability of transformer voltage fluctuation impact, overload operation.
Description
Technical field
The present invention relates to testing equipments, and in particular to a kind of transformer testing frock.
Background technology
Transformer (Transformer) is the device for changing alternating voltage using the principle of electromagnetic induction, main member
It is primary coil, secondary coil and iron core (magnetic core).Major function has:Voltage transformation, current transformation, impedance are converted, isolated, is steady
It presses (magnetic saturation transformer) etc..Transformer is to convert alternating voltage, the device of alternating current and impedance, when being connected in primary coil
During alternating current, exchange flux is just generated in iron core (or magnetic core), makes to induce voltage (or electric current) in secondary coil.
It is to ensure hair, confession, the installation quality of electrical equipment and safety, warp that electrical test is correctly carried out to electrical equipment
Ji reliably runs essential important step.The performance that transformer is mainly tested mainly has anti-power grid surge to be born with overload
Lotus ability, network voltage is excessively high too low all to cause transformer coil voltage breakdown or electric current to blow；Device during load too high
Heating burnout, device surplus design deficiency, quality dissatisfaction；Transient voltage electric current increase test transformer material quality when opening
With the quality of manufacture craft.But existing device for testing transformers is simply by the test-strips for providing rated voltage and output no-load
Part can not meet voltage ripple of power network impact to transformer resistivity and the measure with load overload use reliability.
The content of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the present invention provides a kind of transformer testing frock, which fits
Reliability assessment is carried out for the actual use test of voltage fluctuation impact, overload operation.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include：
A kind of transformer testing frock, including variable-frequency power sources, tunable load resistor, PLC controller, touch-screen display control
System and test cabinet processed, the PLC controller and touch-screen display control program are arranged on the upper end of the test cabinet, the test
Fixed seat and A.C. contactor are equipped in the middle cabinet body of cabinet, for placing tested transformer, the exchange connects the fixed seat
Tentaculum is equipped with A.C. contactor feeder ear and A.C. contactor control terminal, and the A.C. contactor feeder ear connects the variable-frequency electric
Source, the A.C. contactor control terminal connect the PLC controller, and the A.C. contactor is used to connect transformer to be measured, institute
PLC controller is stated for the variable-frequency power sources to be controlled to provide voltage fluctuation and voltge surge for tested transformer；The touch-screen
Display control program connects and shows the parameter information of the PLC controller setting and the status information of test, the adjustable negative
It carries resistor to be arranged in the lower section cabinet of the test cabinet, the tunable load resistor is used to connect the output of tested transformer
End.
As a kind of preferred embodiment of transformer testing frock as described above, the touch-screen display control program includes touching
Screen is touched, the parameter information is shown and controlled by the touch-screen.
As a kind of preferred embodiment of transformer testing frock as described above, the parameter information includes setting input electricity
Pressure, output loading power, start/stop time, setting testing standard numerical value.
As a kind of preferred embodiment of transformer testing frock as described above, the PLC controller is equipped with buzzer or report
Warning lamp, the tested transformer output voltage of PLC controller acquisition, when judging abnormal or failure, the controller starts institute
State buzzer or alarm lamp alarm.
As a kind of preferred embodiment of transformer testing frock as described above, the PLC controller is equipped with timer, described
Timer is used for timing run time,
Or the timer is when reaching setting time, as described in the PLC controller automatic start buzzer warning and/or
Alarm lamp is reminded.
As a kind of preferred embodiment of transformer testing frock as described above, the variable-frequency power sources is 120KW variable-frequency power sources
Power supply, voltage 0-280V is adjustable.
As a kind of preferred embodiment of transformer testing frock as described above, the PLC controller controls the variable-frequency electric
The voltage output in source is 150V, 220V, 260V, is converted once every 10 seconds.
As a kind of preferred embodiment of transformer testing frock as described above, the tunable load resistor includes multiple tune
Depressor and multiple fixed resistances of corresponding connection.
As a kind of preferred embodiment of transformer testing frock as described above, on the surface of the upper end cabinet of the test cabinet
Equipped with scram button.
As a kind of preferred embodiment of transformer testing frock as described above, the lower end bottom surface of the test cabinet is equipped with universal
Wheel or pulley.
(3) advantageous effect
The beneficial effects of the invention are as follows：
Transformer testing frock provided by the invention, which can be realized, actually makes transformer voltage fluctuation impact, overload operation
It is assessed with testing reliability.Further, which can provide Width funtion, and the impact of 150V-260V voltage cycles is run, if
Calibration is 100,000 hours accurate, and the time is automatically reminded to warning function to equipment, specific that input can be achieved available for the detection of accelerated aging
1.2 times of specified phase voltages, output terminal access 1.2 times of rated output loads, are short-term life test when persistently energization 168 is small, test
Demonstrate,prove transformer actual life.
Transformer testing frock provided by the invention employs touch-screen man-machine dialog interface, operation menu design letter
It is single, easy to operate；Also there is fault alarm, count down to alarm etc., tester can be reminded to detect the failure occurred in time,
The effects that test is completed to remind.
Description of the drawings
Fig. 1 is the structure diagram of transformer testing frock of the present invention.
【Reference sign】
1：Upper end cabinet；
2：Intermediate cabinet；
3：Lower section cabinet；
4：Touch-screen；
5：Power switch；
6：Alarm lamp；
7：Scram button；
8：Universal wheel.
Specific embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by specific embodiment, to this hair
It is bright to be described in detail.
Embodiment 1
A kind of transformer testing frock, including variable-frequency power sources, tunable load resistor, PLC controller, touch-screen display control
System and test cabinet processed, as shown in Figure 1, test cabinet includes upper end cabinet 1,3 three parts of intermediate cabinet 2 and lower section cabinet, PLC controls
Device and touch-screen display control program processed is arranged in the upper end cabinet 1 of test cabinet, and tunable load resistor is arranged under test cabinet
In square cabinet 3, fixed seat and A.C. contactor are equipped in the intermediate cabinet 2 of test cabinet, fixed seat becomes for placing fixed be tested
Depressor, A.C. contactor are equipped with A.C. contactor feeder ear and A.C. contactor control terminal, variable-frequency power sources connection A.C. contactor
Feeder ear provides adjustable voltage for tested transformer-supplied, and A.C. contactor feeder ear is additionally operable to connect the electricity of tested transformer
Source input terminal, that is, primary coil, A.C. contactor control terminal connection PLC controller, PLC controller are controlled by A.C. contactor
The connection and disconnection of variable-frequency power sources and tested transformer simultaneously control variable-frequency power sources to provide voltage fluctuation and width electricity for transformer to be measured
Pressure impact；Tunable load resistor provides the working condition actual with simulation is carried to be tested transformer, for connecting tested transformation
The output terminal of device secondary coil；The acquisition signal end connection tunable load resistor of PLC controller, for obtaining loading tested
Load resistance on transformer.Touch-screen display control program connect and show PLC controller setup parameter information and in real time
Ground shows the information of the status of tested transformer.
Fixed seat may be provided with multiple as needed, and multiple fixed seats are set respectively, be respectively used to that detection is different tested to be become
Depressor, but show its each different status information for being tested transformers in same touch-screen display control program.Touch screen display
Show that control system includes touch-screen 4, shown by touch-screen 4 and control the parameter information for being set in tested transformer.Touch-screen 4 can
On the surface of the upper end cabinet 1 of test cabinet, information and the operation of test are checked convenient for observation.Control entire transformer testing
The power switch 5 of frock can set the one side of touch-screen 4.
Specifically, setup parameter information includes setting input voltage, output loading power, start/stop time, setting according to need
The standard figures to be tested, can also set the information of variant all parameters of tested transformer, and the information of state includes tested
The on-load voltage of transformer, the power of load continue conduction time etc..Touch-screen may also display tested transformer fault or reach
Testing standard information；It is set in addition, touch-screen display control program is additionally provided with encryption, using double-deck password, avoids non-designated behaviour
Make personnel control equipment.
PLC controller is additionally provided with buzzer and/or alarm lamp, and the output voltage of the tested transformer of PLC controller acquisition is sentenced
It is disconnected to be not belonging to setting voltage, judge switch operating condition when abnormal or during without voltage or failure or reach testing standard
When prompt and shut down, PLC controller starts buzzer sounding and/or alarm lamp and flashes alarm.Alarm lamp 6 may be provided in test
Cabinet front, specifically can be in 1 front surface of upper end cabinet of test cabinet, close to display screen 4.
PLC controller is equipped with timer, timer be it is built-in, for timing on-load voltage on tested transformer when
Between or when timer reach setting testing standard setting value when, if established standards be 100,000 hours, when timing reach 10
At ten thousand hours, buzzer warning prompting is started by PLC controller or alarm lamp flashes alarm.PLC controller has intelligence
The function of monitoring, fault alarm-by detecting voltage can when judging switch operating condition, abnormal alarm, reaching testing standard
It prompts and shuts down, and show product failure on the panel of display screen or reach the information of testing standard.PLC controller is by handing over
Contactor control primary input power is flowed, PLC controller built-in voltage detection circuit detection transformer output voltage is
No to have voltage output, whether voltage is normal, if less than 5V alarms (this voltage protection Parameter adjustable), goes back Timing transformer and leads to
The electricity operation time.
PLC controller is attracted that variable-frequency power sources is controlled to export to tested by 12V relay drivings ac contactor coil
The voltage of transformer.Variable-frequency power sources is using the power supply of 120KW variable-frequency power sources, voltage 0-280V is adjustable, according to the software of PLC controller
Programme-control voltage output 150V, 220V, 260V was converted once every 10 seconds.Network voltage is excessively high too low all to cause transformation
Device coil voltage punctures or electric current is blown；It can cause transformer apparatus heating burnout, transformer apparatus surplus during load too high
Design deficiency, quality dissatisfaction；The increase of transient voltage electric current can test the material quality of tested transformer with making work when opening
The quality of skill, so be once detected every conversion in 10 seconds using output voltage 150V, 220V, 260V, it is tested to assess
The excess operation that transformer occurs in high voltage fluctuation impact, simulation actual capabilities, the actual use of frequent starting rush of current
Test performance, can finally obtain tested transformer whether can Width funtion operation, whether design of Reducing Rating quality reliable, start-stop moment electricity
The whether strong performance parameter of galvanic electricity pressure impact resistant ability.
Tunable load resistor includes multiple pressure regulators and multiple fixed resistances, and one of pressure regulator is correspondingly connected with one
Fixed resistance forms tunable load resistance and is arranged below test cabinet in cabinet, a tunable load resistance respectively with a quilt
Transformer connection is surveyed, the fixed resistance of 1.2 times of rated power is provided for tested transformer, and can realize that accelerated aging persistently leads to
It is short-term life test when electricity 168 is small, tunable load resistor is connected with tested transformer output terminal.Each place network voltage has
Institute is different, and transformer will adapt to energy steady operation under various voltages, and using 1.2 times of load runnings, the load for increasing transformer comes
The reliability and design of Reducing Rating of the tested transformer of assessment, start-stop assessment are that for transformer unlatching immediate current voltge surge is reliable
Property with access times assess.Tunable load resistance, which can pass through, to be adjusted manually to required load, that is, resistance, adjustable extent 0-100
Ohm 50A.One tunable load resistance is connected with a transformer to be measured, and multiple tunable load resistance are respectively used to treat with multiple
Transformer connection is surveyed, A.C. contactor can be used for the connection of multiple transformers to be measured, and transformer testing frock of the present invention can be realized
The test of multiple transformers to be measured.
For the generation of emergent accident, scram button 7, scram button 7 are additionally provided on the surface of the upper end cabinet of test cabinet
PLC controller and touch-screen display control program are connected, scram button 7 is pressed by entire test fixture placed in a suspend state, thinks
When being again started up test, unclamped after only need to being rotated clockwise about 45 °, the part that scram button 7 is pressed will bounce, can
Recover test mode.
In order to which test cabinet is moved easily the place for needing to test, universal wheel 8 is equipped on the lower end bottom surface of test cabinet
Or pulley, convenient for the movement of test cabinet.
Tested transformer sample when in use, is first fixed in fixed seat by transformer testing frock provided by the invention,
Variable-frequency power sources provides the i.e. tested transformer of power supply connection A.C. contactor feeder ear connecting test frock, A.C. contactor control terminal
PLC controller is connected, tested transformer output terminal is connected with output loading, and PLC controller acquisition signal end is connected to load；Even
It connects to finish and presses step and tested：Opening of device：It presses power switch and opens equipment power supply, start-up picture input password enters
To start-up picture, voltage parameter, testing standard are set, test mode is turned on by station startup.
The above described is only a preferred embodiment of the present invention, being not the limitation that other forms are done to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, technical spirit according to the invention is to above example institute
Any simple modification, equivalent variations and the remodeling made still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of transformer testing frock, which is characterized in that it include variable-frequency power sources, tunable load resistor, PLC controller,
Touch-screen display control program and test cabinet, wherein, the PLC controller and touch-screen display control program are arranged on the test
The upper end of cabinet, the middle cabinet body of the test cabinet is interior to be equipped with fixed seat and A.C. contactor, and the fixed seat is tested for placing
Transformer, the A.C. contactor are equipped with A.C. contactor feeder ear and A.C. contactor control terminal, and the A.C. contactor supplies
Electric end connects the variable-frequency power sources, and for connecting transformer to be measured, the A.C. contactor control terminal connects the A.C. contactor
The PLC controller is connect, the PLC controller is to be tested voltage fluctuation and the voltage that transformer provides for the variable-frequency power sources
Impact；The touch-screen display control program connects and shows the parameter information of the PLC controller setting and the state of test
Information, the tunable load resistor are arranged in the lower section cabinet of the test cabinet, and the tunable load resistor is used to connect
The output terminal of tested transformer, the tunable load resistor connect the acquisition signal end of the PLC controller.
2. transformer testing frock as described in claim 1, which is characterized in that the touch-screen display control program includes touching
Screen is touched, the parameter information is shown and controlled by the touch-screen.
3. transformer testing frock as claimed in claim 2, which is characterized in that the parameter information includes setting input electricity
Pressure, output loading power, start/stop time, setting testing standard numerical value.
4. transformer testing frock as described in claim 1, which is characterized in that the PLC controller be equipped with buzzer and/or
Alarm lamp, the tested transformer output voltage of PLC controller acquisition, when judging abnormal or failure, the PLC controller opens
Move the buzzer and/or alarm lamp alarm.
5. transformer testing frock as claimed in claim 4, which is characterized in that the PLC controller is equipped with timer, described
Timer is used for timing run time；
Or the timer is when reaching setting time, buzzer warning and/or alarm as described in the PLC controller automatic start
Lamp is reminded.
6. transformer testing frock as described in claim 1, which is characterized in that the variable-frequency power sources is 120KW variable-frequency power sources
Power supply, voltage 0-280V is adjustable.
7. transformer testing frock as described in claim 1, which is characterized in that the PLC controller controls the variable-frequency electric
The voltage output in source is 150V, 220V, 260V, is converted once every 10 seconds.
8. transformer testing frock as described in claim 1, which is characterized in that the tunable load resistor includes multiple tune
Depressor and multiple fixed resistances of corresponding connection.
9. transformer testing frock as described in claim 1, which is characterized in that on the surface of the upper end cabinet of the test cabinet
Equipped with scram button.
10. transformer testing frock as claimed in any one of claims 1-9 wherein, which is characterized in that the lower end of the test cabinet
Bottom surface is equipped with universal wheel or pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283058.1A CN108051670A (en) | 2017-12-05 | 2017-12-05 | A kind of transformer testing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711283058.1A CN108051670A (en) | 2017-12-05 | 2017-12-05 | A kind of transformer testing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108051670A true CN108051670A (en) | 2018-05-18 |
Family
ID=62122786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711283058.1A Pending CN108051670A (en) | 2017-12-05 | 2017-12-05 | A kind of transformer testing frock |
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| Country | Link |
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| CN (1) | CN108051670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283465A (en) * | 2018-10-23 | 2019-01-29 | 格力电器（芜湖）有限公司 | A kind of electrical part test method and system |
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| CN207992331U (en) * | 2017-12-05 | 2018-10-19 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of transformer testing tooling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804064U (en) * | 2010-10-09 | 2011-04-20 | 无锡市同舟电子实业有限公司 | Performance detection tooling for electronic transformer |
| CN102539966A (en) * | 2011-12-23 | 2012-07-04 | 台达电子企业管理（上海）有限公司 | Testing system for loads of frequency converters |
| CN102707173A (en) * | 2012-06-11 | 2012-10-03 | 吉林省电力有限公司延边供电公司 | Tester |
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| CN109283465A (en) * | 2018-10-23 | 2019-01-29 | 格力电器（芜湖）有限公司 | A kind of electrical part test method and system |
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