CN107064670A - A kind of power transformer testboard - Google Patents
A kind of power transformer testboard Download PDFInfo
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- CN107064670A CN107064670A CN201710094693.9A CN201710094693A CN107064670A CN 107064670 A CN107064670 A CN 107064670A CN 201710094693 A CN201710094693 A CN 201710094693A CN 107064670 A CN107064670 A CN 107064670A
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- 238000012360 testing method Methods 0.000 claims abstract description 361
- 238000009413 insulation Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012812 general test Methods 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 238000007667 floating Methods 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009466 transformation Effects 0.000 description 4
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000009897 systematic effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of power transformer testboard, including main control computer, control change-over panel, testing source, test load and switching device, control change-over panel connects the control signal output of main control computer, and switching device is by controlling change-over panel to connect testing source, test load and test instrumentation respectively；The data output termination main control computer of test instrumentation, the control termination main control computer of testing source；Switching device connects tested transformer.The power transformer testing board efficiency high of the present invention, can realize a tractor serves several purposes, meet Site Detection needs.
Description
[technical field]
The present invention relates to power transformer test, more particularly to a kind of power transformer testboard.
[background technology]
In railway signals equipment, power transformer produced in series, detection etc. lacks a kind of combined test stand, substantially adopts
Test by hand, lack necessary test equipment.The connection method of manual test is as shown in figure 1, including testing source, test
Load and test instrumentation；Testing source and test load provide test condition for tested transformer, are read by test instrumentation
Test data, judges test result.Because artificial test easily makes mistake, slip up.Bring the unstability of product.In addition, by
In power transformer series of products, species is various.Hard work amount is brought to test environment is built.Existing testboard function is non-
Chang Danyi, test product is also relatively simple, for reviewing for product, and it is very unfavorable to safeguard.
[content of the invention]
The technical problem to be solved in the present invention is to provide a kind of a tractor serves several purposes, testing efficiency is high, disclosure satisfy that Site Detection
The power transformer testboard needed.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is, a kind of power transformer testboard, including
Main control computer, control change-over panel, testing source, test load and switching device, control change-over panel connect main control computer
Control signal output, switching device is by controlling change-over panel to connect testing source, test load and test instrumentation respectively；Test
The data output termination main control computer of instrument, the control termination main control computer of testing source；Switching device connects tested change
Depressor.
Above-described power transformer testboard, switching device is connection clip sub-line, testing cassete or testing cassete and switching
One kind in box combination.
Above-described power transformer testboard, control change-over panel includes CPU, CPLD and plural block relay board, CPU
Main control computer is connect, CPLD meets CPU, the control termination CPLD of relay board；Tested transformer by switching device and first after
Appliance plate connects testing source, and test load is connect by the second relay board, and survey is connect by switching device and the 3rd relay board
Try instrument.
Above-described power transformer testboard, testing source includes 25Hz and tests power supply and 50Hz test power supplys,
The control end of 25Hz test power supplys and the control end of 50Hz test power supplys connect main control computer respectively；25Hz tests the output of power supply
The output end of end and 50Hz test power supplys connects the power input of the first relay board respectively.
Above-described power transformer testboard, test instrumentation includes A.C. voltmeter, alternating current ammeter, DC voltage
Table, DC ammeter, ohmmeter, capacitance meter and insulation voltage resistant instrument, A.C. voltmeter, alternating current ammeter, D.C. voltmeter, direct current
Ammeter, ohmmeter, capacitance meter and insulation voltage resistant instrument connect the 3rd relay board respectively.
Above-described power transformer testboard, main control computer reads the tested transformer model and parameter of input
And test item, send a command to control change-over panel；The order of main control computer is converted to control signal by control change-over panel, is cut
Relay is closed in commutation, selects correct port, testing source, test load and test instrumentation, testing source is loaded into
Tested transformer port, and appropriate load is connected, control related instrument；Main control computer reads back the test knot of test instrumentation
Really, according to the parameter of setting, test result is judged, storage test record supplies subsequent treatment
The power transformer testing board efficiency high of the present invention, can realize a tractor serves several purposes, meet Site Detection needs.
[brief description of the drawings]
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the test philosophy figure of prior art transformer.
Fig. 2 is power transformer testboard systematic schematic diagram of the embodiment of the present invention.
Fig. 3 is control change-over panel schematic diagram of the embodiment of the present invention.
Fig. 4 is testing source of embodiment of the present invention composition and connection figure.
Fig. 5 is power transformer testboard system test composition schematic diagram of the embodiment of the present invention.
Fig. 6 is the connection block diagram of power transformer testboard of the embodiment of the present invention.
Fig. 7 is BGY2-80 testing cassete wiring diagrams of the embodiment of the present invention.
Fig. 8 is BMT-25 transformer connection figures of the embodiment of the present invention.
Fig. 9 is the host computer flow chart of power transformer testboard of the embodiment of the present invention.
Figure 10 is power transformer testing board process flow diagram flow chart of the embodiment of the present invention.
Figure 11 is the test interface figure of power transformer testboard of the embodiment of the present invention.
Figure 12 is the test process surface chart of power transformer testboard of the embodiment of the present invention.
[embodiment]
The structure and principle of power transformer testboard of the embodiment of the present invention as shown in Figure 2 and Figure 6, including master control calculate
Machine, control change-over panel, testing source, test load and switching device, control change-over panel connect the control signal of main control computer
Output end, switching device is by controlling change-over panel to connect testing source, test load and test instrumentation respectively；The number of test instrumentation
Main control computer is terminated according to the control of output termination main control computer, testing source；Switching device connects tested transformer.
Wherein, switching device is can be combined with connection clip sub-line, testing cassete or testing cassete with interconnecting device.
As shown in figure 3, control change-over panel includes CPU, CPLD and plural block relay board, CPU connects main control computer, CPLD
Meet CPU, the control termination CPLD of relay board；Tested transformer connects test signal by switching device and the first relay board
Source, test load is connect by the second relay board, and test instrumentation is connect by switching device and the 3rd relay board.
As shown in figure 4, testing source, which includes 25Hz, tests power supply and 50Hz test power supplys, 25Hz tests the control of power supply
The control end that end and 50Hz test power supply connects main control computer respectively；The output end and 50Hz of 25Hz test power supplys test power supply
Output end connects the power input of the first relay board respectively.
As shown in figure 5, test instrumentation includes A.C. voltmeter, alternating current ammeter, D.C. voltmeter, DC ammeter, electricity
Hinder table, capacitance meter and insulation voltage resistant instrument, A.C. voltmeter, alternating current ammeter, D.C. voltmeter, DC ammeter, ohmmeter, electricity
Appearance table and insulation voltage resistant instrument connect the 3rd relay board respectively.
It is fully loaded that the measurable test item of power transformer testboard of the embodiment of the present invention includes Same Name of Ends, no-load current, sky
Voltage, efficiency, insulated electro are blocked, edge is pressure-resistant, primary side exciting impedance, primary side exciting impedance angle, resistance value and capacitance.
For example：
For 25 weeks track transformers
Model can be tested
| BG2(3)-130/25 | BG1(2)-72/25 | GB1(2)-140/25 |
| BG4(5)-150/25 | BG4(5)-220/25 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | √ | √ | √ | √ | √ | √ |
Remarks：√ can be surveyed；X can not be surveyed.Similarly hereinafter
For 50 weeks track transformers
Model can be tested
| BG2(3)-130/25 | BG1(2)-72/25 | GB1(2)-140/25 |
| BG4(5)-150/25 | BG4(5)-220/25 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | √ | √ | √ | √ | √ | √ |
For signal lighting transformer
Model can be tested
| BX1-34 | BDX-80 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | X | √ | √ | √ | √ | √ |
For isolating transformer
Model can be tested
| BXG2-35 | BGY2-80 | BGY2-100 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | X | √ | √ | √ | √ | √ |
For indoor adjustment transformer
Model can be tested
| BMT-25 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | √ | √ | √ | √ | √ | √ |
For switch indication transformer
Model can be tested
| BD1-7A | DBD-7A |
Testable test item
For silicon rectifying transformer
Model can be tested
| ZG2-42/0.5 | ZG2-130/0.1 | ZG2-220/0.1100/0.1 |
| ZG2-220/0.2100/0.1 | ZG3-220/0.2100/0.1 | ZG2-13.2/2.4 |
| ZG2-13.2/1.2 | ZG2-24/2.4 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | |
| Test selection | X | √ | X | √ | √ | √ |
For rheostat, slide rheostat
Model can be tested
| R1-2.2/220 | R1-4.4/440 | R1-4.4/630 |
| R1-6.9/690 | R-2.2/220 | R-6/65 |
Testable test item
| Test item | Same Name of Ends | No-load current | Floating voltage | Full-load voltage | Insulaion resistance | Insulation is pressure-resistant | Resistance |
| Test selection | X | X | X | X | √ | √ | √ |
In order to test the transformer of above species, power transformer testboard of the embodiment of the present invention, structural principle is as follows
As shown in Fig. 2 main control computer, reads the transformer model to be tested and parameter and test item, order is sent
To control change-over panel.
Control command is converted to control signal by control change-over panel, and the related relay of switching selects correct port, signal
Source, load, and instrument；Signal source is loaded into tested transformer port, and connects appropriate load；Related instrument is controlled,
Read back the result of test instrumentation.Then according to the parameter of setting, automatic decision test result.And test record is stored for follow-up place
Reason etc..
Test adaptor box, is replaceable, and must be matched.Different tested transformers, the respective test of correspondence turns
Connect box.
Test adaptor box is acted on：When the testing source of transformer test bench, test load test instrumentation, control conversion
Plate, and main control computer, when being integrated in inside testboard, the common interface of the standard of test adaptor box connecting test platform, with
Different types of transformer is connected by transferring.
The connected mode of testboard and tested transformer can have 3 kinds, wherein the mode of connection 2 and 3 to use testing cassete and/
Or interconnecting device.
The mode of connection 1：Directly connected with connection clip sub-line；
The mode of connection 2.Pass through testing cassete (including general test box, BGY2-80 testing cassetes, BXG2-35 testing cassetes)
The mode of connection 3. passes through general test box+interconnecting device connection (interconnecting device has BMT-25 interconnecting devices).
Different connected modes are selected according to different transformers.
Such as：Want test b MT25 no-load transformer full-load voltages：
The first step；By tested transformer, BMT25 interconnecting devices (6.3-2-B) are connected to；
Second step；By BMT25 interconnecting devices, general test box (6.3-3-B) is connected to.Then general test box is connected to
The common interface of the standard of transformer test bench；
3rd step:Open, test software PowerTransformer softwares (later abbreviation test software)；
BMT25 transformers are selected, its numbering is inputted.Test software recalls BMT-25 parameter, is shown in test sheets, such as schemes
Shown in 11；
4th step：Test item is selected, such as tests unloaded full-load voltage.Then testing button (software) is pressed；
5th step：Test software is said the word by main control computer to testboard, selects 25HZ testing sources, and will
Test voltage is adjusted to require voltage；
6th step：Test software sends order to control change-over panel, and test voltage is added into test input mouthful, will be defeated
Exit port is connected to test instrumentation；
7th step：Test software reads the reading of instrument, and by result, storage compares index, judges test result；
8th step：When without other test item, resource is opened in closing, and prompting is completed.
As shown in figure 3, the CPU of control change-over panel receives the order that main control computer is sent, decode, then order this
Control command is converted to, CPLD is sent to by SPI mouthfuls, CPLD decodes parallel output control signal by internal logic control,
The control signal of CPLD outputs is sent to relay control panel.Control signal is added to relay driving control by relay control panel
Pin, the correct closure of control relay.By the contact folding of relay, the signal of signal source is added to tested transformer, and
Test load is connected to tested transformer, test instrumentation is connected to the test pin of correlation.Read and surveyed by test instrumentation
Data are tried, test assignment is completed.
As shown in figure 4, because tested transformer has 50HZ, two kinds of 25HZ, therefore power transformer of the embodiment of the present invention is tested
The testing source of platform has 2 kinds of test power supplys, respectively 50HZ test power supplys, 25HZ test power supplys.
Shown in Fig. 5, the main control computer in test process controls test condition first, by test source, test load connection
To tested transformer, and connecting test instrument is to tested transformer interface.Then reading order, tester are sent to test instrumentation
Table returns the reading of test to main control computer, facilitates instrument control by RS485 buses.The efficiency of the tested transformer of test
Deng when, it is necessary to simultaneously with alternating voltage Table I and alternating current Table I test primary voltage electric current, with alternating voltage Table II, hand over
Flow ammeter II, DC voltage Table II and DC current Table II test secondary voltage and electric current.
The composition and annexation of power transformer testboard total system of the embodiment of the present invention are as shown in fig. 6, wherein survey
It is optional equipment to try box and interconnecting device, when not selecting testing cassete and interconnecting device, and tested transformer is connected with the above-mentioned mode of connection 1.
The interface of power transformer testboard of the embodiment of the present invention is as shown in fig. 6, externally common interface includes：
Test interface 1：12 line transformer interface (I_1~I_4；II_1~II_4；III_1~III_4；)；
Test interface 2：4 line IV interfaces (IV_1~IV_4)；
Test interface 3：8 line silicon rectifier interface (ZLS1+, ZLS1-；ZLS2+, ZLS2-；ZLDS1+, ZLD1-；ZLD2+,
ZLD2-)；
I_1~I_4 that the primary and secondary interface of tested transformer passes through test interface 1；It is secondary by test interface 1II_1~
II-4；III_1~III_4；Test interface 2IV-1~IV-4 or test interface 3 ZLS1+, ZLS1-；ZLS2+, ZLS2-；
ZLDS1+, ZLD1-；ZLD2+, ZLD2- (specifically relevant with tested transformer) are connected to testboard.The tested transformation of some types
Device need to can be connected by p-wire and can tested；The tested transformer of some types need to be connected to survey by the switching of test adaptor box
The test interface 1 or test interface 2 of test stand；With test interface 3, it can just test.
As shown in Fig. 2 testing different transformers, carried out by using different test adaptor boxes, different types of quilt
Transformer is surveyed, passes through replaceable test adaptor box.Different transformers are completed to the conversion of standard interface.Transformer is connected to just
After true interconnecting device, by main control computer, the corresponding parameter of tested transformer is read, control control change-over panel completes test
Task.
Tested transformer standard interface：Primary I:I1, I2, I3, I4
Secondary II；II1, II2, II3, II4
Secondary III；III1, III2, III3, III4
Secondary IV；IV1, IV2, IV3, IV4
To the transformer interface of standard, external primary and secondary facilitates clamp, (can provide standard to connect by the mode of connection 1
Line) connecting test is to testboard.
Transformer to differing interface, may be selected different testing cassetes by the connecting test of the mode of connection 2 to testboard,
Test variety classes transformer.
To the transformer of roughly the same interface, selection general test box+interconnecting device is the connecting test of the mode of connection 3 to testing
Platform, but different inside distribution test tests or is equipped with.
Power transformer of embodiment of the present invention testboard completes to connect by different interconnecting devices, greatly expands test
Species, better conforms to the demand at scene.
Power transformer of the embodiment of the present invention testboard testing cassete and interconnecting device different by setting, can be completed to surveying
Try 25 weeks track transformers, 50 track transformer source transformers, isolating transformer, indoor adjustment transformer, switch indication transformation
Device, silicon rectifying transformer and lighting transformer, can also test rheostat, the hardware interface of slide rheostat test.It is existing to survey
Examination box has：General test box, BGY2-80 testing cassetes, BMT-25 interconnecting devices, BXG2-35 testing cassetes.
The wiring of BGY2-80 testing cassetes is as shown in fig. 7, for test b GY2-80 transformers, other testing cassete structure classes
Seemingly.
During test b GY2-80 transformers, by connecting BGY2-80 testing cassetes, testboard is directly connected to.Reduce work
Amount.
During test b MT-25 transformers, by BMT-25 testing cassetes, transformer test bench is connected to.Convenient test, and connect
Line, reduces mistake.
During test b XG2-35 transformers, by BXG2-35 testing cassetes, transformer test bench is connected to.Facilitate test and
Wiring, reduces mistake.
Identical testing cassete, can be realized to different, the test of similar equipment under test by different inside distributions.
Such as, by BGY2-80 testing cassetes, test b GY2-80, BMT-25, BXG2-35 type transformer can be facilitated.
During test b D1-7A type switch indication transformers, testing cassete connection is as shown in the table：
Table 1BD1-7A type switch indication transformer testing box connection tables
| Interconnecting device pin | Correspondence BD1-7A pins | |
| I_1 | 3 | |
| I_3 | 4 | |
| I_2,I_4 | N | |
| II_1 | 62 | |
| II_2 | 52 | |
| II_3 | N | |
| II_4 | N |
In upper computer software, BD1-7A type switch indication transformers are selected, selection test item (or acquiescence test item) can
Complete the test to BD1-7A type switch indication transformers.
When testing ZG2-42/0.5 type silicon rectifying transformers, the connection such as following table of general test box：
Table 2ZG2-42/0.5 type silicon rectifying transformer testing cassete connection tables
Again in upper computer software, ZG2-42/0.5 type silicon rectifying transformers, selection test item (or acquiescence test item) are selected
The test to ZG2-42/0.5 type silicon rectifying transformers can be completed.
Test b MT-25 type transformers can be facilitated by being combined using general test box with different interconnecting devices.Fixed BMT-25 classes
Type interconnecting device, is coordinating the general test box of variable wiring, i.e. general test box+BMT-25 interconnecting devices, is completing the switching of signal,
Convenient test.
Only has circuit switching, no electric components, only for convenience of on-the-spot test operation inside testing cassete and interconnecting device.
As shown in figure 8, BMT25 transformers belong to non-type transformer, and it is convenient test, using BMT-25 interconnecting devices,
This interconnecting device line is fixed, and then by general-purpose relay box, is inserted on general test box, general test box, according to BMT-25
The line graph of test connects inside and connects wiring, then general test box is connected on testboard external interface, then BMT25
Test line is connected, and can carry out follow-up test.
After being completed, only by BMT-25 interconnecting devices and the line of transformer, other 1 BMT-25 transformer is connected to, i.e.,
The test of lower 1 can be carried out.Facilitate test job progress.
The test item of transformer includes：The Same Name of Ends of transformer, no-load current, floating voltage, full-load voltage.Efficiency.Absolutely
Edge resistance, insulate pressure-resistant；And rheostatic resistance and electric capacity etc..
Specific test item, it is different according to the transformer species different demands of test, and additions and deletions.
Each test item of the system, contains specific test index.For judged result.
Test item, and test index are as shown in the table：
The test item list of table 3
As shown above, by different specific configurations, reach can test transformer different test items and items refer to
Target purpose.
Testing process is as follows：
By the different setting of PowerTransformer softwares, and the tested transformer of selection the test item matched and
Test index.Wherein, PowerTransformer softwares are power transformer intelligent testing test stand upper computer softwares.Control test letter
Number source and control change-over panel, and test load；By the reading of read test instrument, test is completed；Then to test data
With index contrast；Provide test result；And store test record and supply subsequent treatment.
Automatic test, and data processing are completed by PowerTransformer software design patterns.
After correct connection is finished.Correct test-types, and model are selected in upper computer software.Then it can survey automatically
Examination.Idiographic flow is as shown in Figure 9.
In the interface of main control computer, pass through user management；Different stage user, including keeper can be managed, commonly
User.Keeper has super authority, can increase, product category, model.Domestic consumer's only typing company-information, product letter
Breath and test.
After producer, product is chosen.Log in test interface.In the case where aerial lug is errorless.Select test item.Press
Testing button, testboard can be automatically performed test assignment.It is completed, data deposit database, later data processing, including surveys
Trial record is inquired about；Report generation；The functions such as statistics.
For example, by the way that to general test box, reconfiguring for interconnector can conveniently realize polytype power transformer product
Automatic test and manual test (25 weeks track transformers, 50 weeks track transformers, signal lighting transformer, isolation transformations
Device, indoor adjustment transformer, silicon rectifying transformer, the index of switch indication transformer testing silicon rectifying transformer.
Test item includes：The Same Name of Ends of transformer, no-load current, floating voltage, full-load voltage.Efficiency.Insulaion resistance, absolutely
Edge is pressure-resistant；And rheostatic resistance, electric capacity etc..Specific test item, it is different according to the transformer species different demands of test, and
Additions and deletions.
As shown in table 3, by configuring different test items and test pin, and setting indices.
PowerTransformer softwares, can automatically switch, test, and after being completed, test result is provided in real time.Such as test
Same Name of Ends.I1, II1 are selected according to test item, III1, IV1 is Same Name of Ends.Selection tests this, when wiring is correct, presses
Dynamic testing button (on software interface) PowerTransformer softwares, test condition can be provided automatically, and switch test pin is read
Take test data；Judge test result；Finally provide test result；And record test record.
During test, pass through various types of parameters set in advance.In test interface only simple selection, the transformation to be tested
Device type, and test item.
As shown in figure 11, testing procedure is as follows for test interface:
1) product ID of test is needed in choosing 1., red is represented without test, black is represented by test；
2) 3. middle product needs the test item tested for selection；
3) 2. " test " is clicked on；
4) complete to test item by item according to prompting；
What need not be tested presses choosing for options, you can from test entry deletion.
Automatic record test value is completed, automatic decision test result passes through test, or failure.
And test and complete in interface display.
Test b MT25 transformer testings result such as Figure 12 test process surface chart
Above example of the present invention connects different tested transformers by different testing cassetes.And coordinate software, phase
The test option matched somebody with somebody, is completed to a variety of tested type transformers, the test of a variety of test items.
Testboard connection 220v power supplys are powered, and are connected to testing cassete and tested transformer by panel interface.It can survey
Examination.
Tested transformer is connected to testboard, and internal control change-over panel, computer sends life by controlling change-over panel
Order, control test voltage source exports correct test signal.Then by being tested transformer, it is connected to correct test load.
Read back test data by test instrumentation.Record judges test result.Stored record, for subsequent query and statistics.
Testing procedure is correctly to connect transformer first to testboard, on the software of testboard, selects the type of test,
Input product numbering etc..Subsequently into test interface.Select test event.Press testing button.Testboard is automatic, according to test
Type, sends order, background work.Including selection, appropriate source is switched to correct port.The correct load of loading.Read
Test result.Then testboard is automatic by result, and the index contrast set, obtains test result.Then by test record (bag
Include numerical value, and conclusion) storage, for subsequent treatment.Subsequent treatment, including report generation, statistics check record etc..
Transformer is for example adjusted in test b MT-25 rooms., BMT-25 interconnecting devices, and general test box are selected first, will
BMT-25 interconnecting devices are inserted on general test box, and then BMT-25 interconnecting devices inlet wire is connected on BMT-25 transformers.It is general to survey
Examination box is connected to testboard host test mouthful.Test main frame is opened, producer, species, model is selected；And test item.For example select
Select.Same Name of Ends, no-load current, floating voltage, full-load voltage, efficiency.Insulaion resistance, insulate pressure-resistant.Then press feeler switch (
On software test interface) PowerTransformer softwares inquire about automatically, test parameter, switch test task, read test number
According to judging test result, record test data, in case later data is handled.It is finally completed test process.
Equipment is equipped with：Including industrial computer one, 50HZ power supplys 1,25HZ power supplys 1, insulate voltage resistant instrument 1.Alternating current
Press 2, table.Alternating current ammeter 2,1 piece of D.C. voltmeter, 1 piece of DC ammeter, 1 piece of ohmmeter, 1 piece of capacitance meter.Test master
Control 1 piece of plate, 3 pieces of busy relay plate.1 piece of Hygrothermograph.Load is some.Above equipment is arranged in testboard main unit mechanism,
External interface leaves test mouth.Operation interface is completed by host computer.If the testing cassete of user's connection setting, and selection setting
Test-types, and test item, you can complete test assignment, it is very convenient, and test model, and classification are changed, it is very convenient.
Above example power transformer testing bench structure of the present invention rationally, point out by hommization, automatic test, and logarithm
According to automatic storage, processing.Can be by data base querying, and easily report generation.Greatly facilitate test job.The present invention with
Upper embodiment can not only test 25 weeks track transformers, 50 weeks track transformers, isolating transformer, indoor adjustment transformer, road
Trouble indication transformer, silicon rectifying transformer, lighting transformer can also test rheostat, the index of slide rheostat..
Above example of the present invention realizes the function of quick test multi-signal equipment by software and hardware configuration function, can
For transformer production producer railroad maintenance unit, accurate test is realized, mistake is reduced.
Claims (6)
1. a kind of power transformer testboard, it is characterised in that including main control computer, control change-over panel, testing source, survey
Examination load and switching device, control change-over panel connect the control signal output of main control computer, and switching device is changed by controlling
Plate connects testing source, test load and test instrumentation respectively；Data output termination main control computer, the test letter of test instrumentation
The control termination main control computer in number source；Switching device connects tested transformer.
2. power transformer testboard according to claim 1, it is characterised in that switching device is connection clip sub-line, survey
Examination box or testing cassete combined with interconnecting device in one kind.
3. power transformer testboard according to claim 2, it is characterised in that control change-over panel include CPU, CPLD and
Plural block relay board, CPU connects main control computer, and CPLD meets CPU, the control termination CPLD of relay board；Tested transformer leads to
Cross switching device and the first relay board connects testing source, test load is connect by the second relay board, passes through switching device
And the 3rd relay board connect test instrumentation.
4. power transformer testboard according to claim 3, it is characterised in that testing source includes 25Hz and tests electricity
Source and 50Hz test power supplys, the control end of 25Hz test power supplys and the control end of 50Hz test power supplys connect main control computer respectively；
The output end of 25Hz test power supplys and the output end of 50Hz test power supplys connect the power input of the first relay board respectively.
5. power transformer testboard according to claim 3, it is characterised in that test instrumentation include A.C. voltmeter,
Alternating current ammeter, D.C. voltmeter, DC ammeter, ohmmeter, capacitance meter and insulation voltage resistant instrument, A.C. voltmeter, alternating current
Flow table, D.C. voltmeter, DC ammeter, ohmmeter, capacitance meter and insulation voltage resistant instrument connect the 3rd relay board respectively.
6. power transformer testboard according to claim 3, it is characterised in that main control computer, reads the quilt of input
Transformer model and parameter and test item are surveyed, control change-over panel is sent a command to；Change-over panel is controlled by the life of main control computer
Order is converted to control signal, and the related relay of switching selects correct port, testing source, test load and test instrumentation,
Testing source is loaded into tested transformer port, and connects appropriate load, related instrument is controlled；Main control computer is read
The test result of test instrumentation is returned, according to the parameter of setting, test result is judged, storage test record supplies subsequent treatment.
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| CN201710094693.9A CN107064670A (en) | 2017-02-22 | 2017-02-22 | A kind of power transformer testboard |
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| CN201710094693.9A CN107064670A (en) | 2017-02-22 | 2017-02-22 | A kind of power transformer testboard |
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| CN109613347A (en) * | 2018-10-17 | 2019-04-12 | 云南电网有限责任公司曲靖供电局 | A kind of excitation property detection method and device of transformer |
| CN110118907A (en) * | 2019-05-30 | 2019-08-13 | 裕文新兴电子(深圳)有限公司 | Transformer synthesis detection device |
| CN111913068A (en) * | 2018-11-19 | 2020-11-10 | 韩伟 | Portable microelectronic AC counting equipment test bench |
| CN113884869A (en) * | 2021-09-23 | 2022-01-04 | 刘正祥 | Full-automatic relay acceptance system |
| CN116539996A (en) * | 2023-05-22 | 2023-08-04 | 杭州裕正电子有限公司 | Performance test equipment for semi-finished product of high-frequency transformer |
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| CN116539996B (en) * | 2023-05-22 | 2023-10-27 | 杭州裕正电子有限公司 | Performance test equipment for semi-finished product of high-frequency transformer |
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