CN108362953A - The full-automatic testing platform and method of transformer - Google Patents
The full-automatic testing platform and method of transformer Download PDFInfo
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- CN108362953A CN108362953A CN201810485846.7A CN201810485846A CN108362953A CN 108362953 A CN108362953 A CN 108362953A CN 201810485846 A CN201810485846 A CN 201810485846A CN 108362953 A CN108362953 A CN 108362953A
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- transformer
- phases
- ratio
- test
- voltage winding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses the full-automatic testing platforms and method of a kind of transformer,The RS232 serial ports of computer comes to communicate connection with the first connector via the one 232/485 converter,The RS485 serial ports of the PLC is connected with the second connector,Second connector is also connected with third connector,The third connector is connected with transformer electrical parameter comprehensive tester,The third connector is also connected with the 4th connector,4th connector is also connected with the 5th connector,5th connector is also connected with 485 interfaces of the 3rd 232/485 converter,232 interfaces of the 3rd 232/485 converter are connected with the RS232 interface of straight resistance instrument,And the function that the test parameter in the prior art that can be arranged and the test that imposes a condition are avoided by method is not often very complete,Since the restriction of performance cannot be satisfied the defect of the interactive performance in terms of stronger test.
Description
Technical field
The present invention relates to transformer testing technical field, the full-automatic testing platform and method of specially a kind of transformer.
Background technology
Site test device for transformer is a kind of device being very suitable for live accurate measuring transformer, can be existing
Field accurately measures oil using the built-in power of the equipment for transformer and invades the various types transformation such as formula, dry type, special transformer
The pattern and load loss of device, can first and second voltage value of arbitrary input transformer when use.
But be also general some transformer testing instruments now for transformer, such tester has portable
The advantages of, but it is insufficient in terms of flexibility, the function that can be arranged is due to transformer testing instrument inside chip (often monolithic
Machine and small-capacity memory) performance it is very limited, therefore the test parameter that can be arranged and the function for the test that imposes a condition
It is often very incomplete, in addition also due to the restriction of performance cannot be satisfied the interactive performance in terms of stronger test.
Invention content
It is an object of the invention to provide the full-automatic testing platforms and method of a kind of transformer, include the electricity with RS232 serial ports
Brain, the frequency converter with RS485 serial ports, the PLC with RS485 serial ports, the transformer electrical parameter synthesis with RS485 serial ports are surveyed
Try instrument, the no-load voltage ratio group tester with RS232 serial ports, the straight resistance instrument with RS232 serial ports, the RS232 strings of the computer
Mouth comes to communicate connection with the first connector via the one 232/485 converter, and first connector is the same as frequency converter
RS485 serial ports is connected, and first connector is also connected with the second connector, and the RS485 serial ports of the PLC is the same as the
Two connectors are connected, and second connector is also connected with third connector, the same transformer of third connector
Electrical parameter comprehensive tester is connected, and the third connector is also connected with the 4th connector, the 4th connector
Also it is connected with 485 interfaces of the 2nd 232/485 converter, 232 interfaces of the 2nd 232/485 converter are tested with no-load voltage ratio group
The RS232 interface of instrument is connected, and the 4th connector is also connected with the 5th connector, and the 5th connector is also same
485 interfaces of the 3rd 232/485 converter are connected, and 232 interfaces of the 3rd 232/485 converter connect with the RS232 of straight resistance instrument
Mouth is connected, and background control module, the information database of transformer, for transformer are provided in the computer and carries out transformation
The information database of when joint group alias test, for transformer carry out the information database of winding resistance test, for becoming
The information database of depressor no-load loss test, is used for inducting-voltage proof at the information database of for transformer load loss test
The information database of test, the information database that test is risen for the information database of industrial frequency withstand voltage test, for temperature, it is described
Foreground control module is provided in PLC.And the test parameter in the prior art that can be arranged is avoided by method and is set
The function of fixed condition test is not often very complete, cannot be satisfied interactive performance in terms of stronger test due to the restriction of performance
Defect.
A kind of full-automatic testing platform of transformer and method in order to overcome the deficiencies in the prior art, the present invention provides
Solution, it is specific as follows:
A kind of full-automatic testing platform of transformer includes the computer with RS232 serial ports, the frequency conversion with RS485 serial ports
Device, the PLC with RS485 serial ports, the transformer electrical parameter comprehensive tester with RS485 serial ports, the change with RS232 serial ports
Straight resistance instrument than group tester, with RS232 serial ports, the RS232 serial ports of the computer is via the one 232/485 converter
To communicate connection with the first connector, first connector is connected with the RS485 serial ports of frequency converter, and described first
Connector is also connected with the second connector, and the RS485 serial ports of the PLC is connected with the second connector, and described second
Connector is also connected with third connector, and the third connector is connected with transformer electrical parameter comprehensive tester, institute
The third connector stated also is connected with the 4th connector, and the 4th connector is also the same as the 485 of the 2nd 232/485 converter
Interface is connected, and 232 interfaces of the 2nd 232/485 converter are connected with the RS232 interface of no-load voltage ratio group tester, described
4th connector is also connected with the 5th connector, and the 5th connector is also the same as 485 interfaces of the 3rd 232/485 converter
It is connected, 232 interfaces of the 3rd 232/485 converter are connected with the RS232 interface of straight resistance instrument, are provided in the computer
Background control module, the information database of transformer, for transformer carry out the Information Number of transformation when connection set number test
According to the information data that library, for transformer carry out the information database of winding resistance test, for transformer no-load loss is tested
Library, for transformer load loss test information database, for inducting-voltage proof test information database, for power frequency it is resistance to
It presses the information database of test, rise the information database of test for temperature, foreground control module is provided in the PLC.
The method of the full-automatic testing platform of the transformer is that steps are as follows:
Step 1:Start computer first, runs background control module, be put into human-computer interaction circle of background control module
Face, on the human-computer interaction interface with needed for typing transformer parameter to be tested input frame, into transformer into
Row transformation when connection set number test select button, into transformer carry out winding resistance test select button, into
Enter the select button that transformer noload losses is tested, into the select button tested transformer load loss, into sense
It answers the select button of voltage-withstand test, rise the select button tested into the select button tested inducting-voltage proof and into temperature;
Step 2:The transformer parameter information on transformer outer wall nameplate tested as needed, passes through human-computer interaction circle
Face needs the input frame of transformer parameter to be tested the transformer parameter data input for typing;
Step 3:After typing, the save button on human-computer interaction interface is clicked, such background control module is just the transformation
Device parameter information is stored in as a record in the information database of transformer;
Step 4:When needing to carry out transformation when connection set number test to transformer, specially:First no-load voltage ratio group is surveyed
Examination instrument is connected with the transformer, then clicks to enter the select button that transformation when connection set number test is carried out to transformer
Into to transformer carry out transformation when connection set number test interactive interface, this to transformer carry out transformation be when coupled
On the interactive interface of group alias test, carried on the interactive interface for carrying out transformation when connection set number test to transformer
It is alternative be manually entered, memory read and program control test as Three models, if selection be program control test mould
Formula is put into the interactive interface of program control test, on the interactive interface of the program control test, by inputting with no-load voltage ratio group tester
The factory number for the transformer being connected, the ambient humidity of transformer position, the environment temperature of transformer position, change
The tapping point of star-like connection or triangle connection type, transformer that depressor uses carries out parameter setting, and then clicking should
The button for starting test on the interactive interface of program control test, the change that just the same no-load voltage ratio group tester is connected
The factory number of depressor, the ambient humidity of transformer position, the environment temperature of transformer position, transformer use
Star-like connection or triangle connection type, transformer the information of tapping point be sent in PLC, PLC then just starts foreground
Control module includes the factory number of transformer, the ambient humidity of transformer position, transformer position to send
Environment temperature, transformer use star-like connection or triangle connection type, transformer tapping point test instruction arrive
In no-load voltage ratio group tester, no-load voltage ratio group tester is allowed to be tested according to the information of the tapping point of transformer with this, most
The ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, change ratio, the transformer of the AC phases of transformer are obtained afterwards
The ratio errors of AC phases, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, and the AB phases of transformer
Become ratio, the ratio error of AB phases of transformer, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer,
The change ratio of the BC phases of transformer, the ratio error of the BC phases of transformer, time point at this time send back computer in real time, then
Background control module is in real time the information of the tapping point of transformer, the AB phases for becoming ratio, transformer of the AB phases of transformer
Ratio error, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer, the change ratio of the BC phases of transformer, change
The ratio errors of the BC phases of depressor, time point at this time, transformer factory number corresponding to transformer information database
In tap sum, tap spacing, the nominal transformation ratio of record be shown on the interactive interface of program control test in real time, while going back handle
The AC of the information of the tapping point of the transformer, the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, transformer
The ratio error of the AC phases for becoming ratio, transformer of phase, the no-load voltage ratio of the BC phases for becoming ratio, transformer of the BC phases of transformer are missed
Difference, time point at this time, transformer factory number corresponding to transformer information database in record tap sum,
Tap spacing, nominal transformation ratio are stored in the information that for transformer carries out transformation when connection set number test in the form of recording
In database;
If the pattern of selection being manually entered, is put into the interactive interface being manually entered, in the friendship being manually entered
On mutual interface, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the ring of transformer position
The star-like connection or triangle connection type, transformer that border humidity, the environment temperature of transformer position, transformer use
Tapping point carry out the pre- typing of parameter, then artificial mode manipulates tapping point of the no-load voltage ratio group tester according to transformer
Information is tested, and the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC of transformer are finally obtained
The ratio error of the AC phases for becoming ratio, transformer of phase, the no-load voltage ratio of the BC phases for becoming ratio, transformer of the BC phases of transformer are missed
Difference, and the change ratio of the AB phases of transformer, the ratio error of AB phases of transformer, the change ratio of the AC phases of transformer, transformation
The ratio error of the AC phases of device, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point record at this time
Enter to the interactive interface being manually entered, then clicks the button for preservation, background control module is in real time point of transformer
The information of contact, the AB phases of transformer become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio,
The ratio error of the AC phases of transformer, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time at this time
Point, transformer factory number corresponding to transformer information database in the tap sum of record, tap spacing, specified
No-load voltage ratio is shown in real time on the interactive interface being manually entered, while also the information of the tapping point of the transformer, transformer
The ratio error of the AB phases for becoming ratio, transformer of AB phases, the no-load voltage ratio of the AC phases for becoming ratio, transformer of the AC phases of transformer are missed
The factory number for becoming ratio, the ratio error of BC phases of transformer, time point at this time, transformer of difference, the BC phases of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of corresponding transformer are deposited in the form of recording
It stores up in the information database that for transformer carries out transformation when connection set number test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in the friendship of the memory access
On mutual interface, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the ring of transformer position
The star-like connection or triangle connection type, transformer that border humidity, the environment temperature of transformer position, transformer use
Tapping point carry out parameter setting, then start no-load voltage ratio group tester and surveyed according to the information of the tapping point of transformer
Examination, finally obtain the AB phases of transformer become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio,
The ratio error of the ratio error of the AC phases of transformer, the BC phases for becoming ratio, transformer of the BC phases of transformer, and transformer
AB phases become ratio, the ratio error of AB phases of transformer, the AC phases for becoming ratio, transformer of the AC phases of transformer no-load voltage ratio
Error, the ratio error of the BC phases of the change ratio of the BC phases of transformer, transformer, time point at this time are stored in the survey of no-load voltage ratio group
In the memory for trying instrument, once clicked for the button of memory access on the interactive interface in memory access, then backstage is controlled
Molding block sends PLC read memory instruction in real time, and the foreground control module in PLC is just being stored in no-load voltage ratio group tester
Memory in transformer AB phases become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio, become
The ratio error of the AC phases of depressor, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point at this time
It is sent to computer, the AB that becomes ratio, transformer of the background control module the information of the tapping point of transformer, the AB phases of transformer
Ratio error, the no-load voltage ratio of the BC phases of transformer of the ratio error of phase, the AC phases for becoming ratio, transformer of the AC phases of transformer
Value, the ratio error of BC phases of transformer, time point at this time, transformer factory number corresponding to transformer Information Number
It is shown in real time on the interactive interface of memory reading according to the tap sum of the record in library, tap spacing, nominal transformation ratio, simultaneously
Also the information of the tapping point of the transformer, the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, transformer
AC phases become ratio, the ratio error of AC phases of transformer, the BC phases for becoming ratio, transformer of the BC phases of transformer no-load voltage ratio
Error, time point at this time, transformer factory number corresponding to transformer information database in record tap it is total
Number, tap spacing, nominal transformation ratio are stored in for transformer in the form of recording and carry out transformation when connection set number test
In information database;
Step 5:When needing to carry out winding resistance test to transformer, specially:First straight resistance instrument is connected with the transformer
It connects, then clicks to enter and the select button of winding resistance test is carried out into transformer progress winding resistance test to transformer
Interactive interface, this to transformer carry out winding resistance test interactive interface on, this to transformer carry out winding resistance
With Three models as alternative manual test, memory reading and program control test on the interactive interface of test, if
What is selected is the pattern of program control test, is put into the interactive interface of program control test, on the interactive interface of the program control test, passes through
Input is the same as the factory number of transformer, the ambient humidity of transformer position, transformer position that directly resistance instrument is connected
Environment temperature, the coil temperature of transformer, transformer tapping point carry out parameter setting, then click the program control test
The button for starting test on interactive interface, the factory number for the transformer that just the same straight resistance instrument is connected, change
The tap of the ambient humidity of depressor position, the environment temperature of transformer position, the coil temperature of transformer, transformer
The information of point is sent in PLC, and PLC includes then the transformation being connected with straight resistance instrument to send with regard to startup foreground control module
The factory number of device, the ambient humidity of transformer position, the environment temperature of transformer position, the coil temperature of transformer
Degree, transformer tapping point information test instruction to straight resistance instrument in, allow straight resistance instrument according to the tapping point of transformer with this
Information tested, finally obtain the line resistances of the AB phases of transformer high-voltage winding, the AC phases of transformer high-voltage winding
The line resistance of the BC phases of line resistance, transformer high-voltage winding, alternate poor, transformer low voltage winding the ab of transformer high-voltage winding
Line resistance, the transformer of the bc phases of the line resistance of phase, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding are low
Press winding alternate difference, and the line resistance of the AC phases of the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding,
The line of the line resistance of the BC phases of transformer high-voltage winding, alternate poor, transformer low voltage winding the ab phases of transformer high-voltage winding
The line resistance of the ac phases of resistance, transformer low voltage winding, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage winding
Alternate poor, at this time time point send back computer in real time, then background control module is in real time transformer high-voltage winding
The line resistances of AB phases, the line resistance of BC phases of the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding, transformation
The line resistance of alternate poor, transformer low voltage winding the ab phases of device high-voltage winding, the ac phases of transformer low voltage winding line resistance,
The line resistance of the bc phases of transformer low voltage winding, the manufacture at alternate poor, at this time the time point, transformer of transformer low voltage winding
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of the corresponding transformer of number are shown in real time
On the interactive interface of program control test, while also the information of the tapping point of the transformer, the AB phases of transformer high-voltage winding
The line resistance of the AC phases of line resistance, transformer high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage around
The line resistance of alternate poor, transformer low voltage winding the ab phases of group, line resistance, the transformer of the ac phases of transformer low voltage winding are low
Press the line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding, the factory number of transformer of winding right
Tap sum, tap spacing, the nominal transformation ratio of record in the information database for the transformer answered are stored in the form of recording
For transformer carries out in the information database of winding resistance test;
If what is selected is the pattern of manual test, it is put into the interactive interface of manual test, in the friendship of the manual test
On mutual interface, by inputting the factory number for the transformer being connected with straight resistance instrument, the ambient humidity of transformer position, becoming
The environment temperature of depressor position, the coil temperature of transformer, transformer tapping point carry out the pre- typing of parameter, then people
The mode of work manipulates straight resistance instrument and is tested according to the information of the tapping point of transformer, finally obtains transformer high-voltage winding
Line resistance, the transformer of the BC phases of the line resistance of AB phases, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding the ab phases of high-voltage winding, the line resistance of the ac phases of transformer low voltage winding, change
The line resistance of the bc phases of depressor low pressure winding, alternate poor, at this time the time point of transformer low voltage winding are entered into manual test
Interactive interface, then click for preservation button, background control module in real time the information of the tapping point of transformer, become
The BC phases of the line resistance of the AB phases of depressor high-voltage winding, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
Line resistance, the line resistance of alternate poor, transformer low voltage winding ab phases of transformer high-voltage winding, transformer low voltage winding
Alternate poor, at this time the time of the line resistance of ac phases, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage winding
Point, transformer factory number corresponding to transformer information database in the tap sum of record, tap spacing, specified
No-load voltage ratio is shown on the interactive interface of manual test in real time, at the same also the line resistance of the AB phases of the transformer high-voltage winding,
The phase of the line resistance of the AC phases of transformer high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
Between the line resistances of poor, transformer low voltage winding ab phases, transformer low voltage winding ac phases line resistance, transformer low voltage winding
The line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number corresponding to change
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of depressor are stored in the form of recording for becoming
Depressor carries out in the information database of winding resistance test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in the friendship of the memory access
On mutual interface, by inputting the factory number for the transformer being connected with straight resistance instrument, the ambient humidity of transformer position, becoming
The environment temperature of depressor position, the coil temperature of transformer, transformer tapping point carry out parameter setting, then start
No-load voltage ratio group tester is tested according to the information of the tapping point of transformer, finally obtains the AB phases of transformer high-voltage winding
Line resistance, the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding BC phases line resistance, transformer high-voltage
Line resistance, the transformer of the line resistance of alternate poor, transformer low voltage winding the ab phases of winding, the ac phases of transformer low voltage winding
The line resistance of the bc phases of low pressure winding, the alternate difference of transformer low voltage winding, and the line of the AB phases of transformer high-voltage winding electricity
Resistance, the line resistance of BC phases of the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding ab phases, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage around
The line resistance of bc phases of group, alternate poor, at this time the time point of transformer low voltage winding are stored in the interior of no-load voltage ratio group tester
In depositing, once clicked for the button of memory access on the interactive interface in memory access, then background control module is real
When PLC sent read memory instruction, the foreground control module in PLC is just the transformer being stored in the memory of straight resistance instrument
The line of the BC phases of the line resistance of the AB phases of high-voltage winding, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding the ab phases of resistance, transformer high-voltage winding, the ac phases of transformer low voltage winding
Line resistance, the line resistance of bc phases of transformer low voltage winding, alternate poor, at this time the time point of transformer low voltage winding send
To computer, line resistance, transformer of the background control module the information of the tapping point of transformer, the AB phases of transformer high-voltage winding
The alternate poor, change of the line resistance of the AC phases of high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
The bc phases of the line resistance of the ab phases of depressor low pressure winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding
Line resistance, alternate poor, at this time the time point of transformer low voltage winding, transformer corresponding to the factory number of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in information database are shown in the interactive interface of memory reading in real time
On, while also the information of the tapping point of the transformer, the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding
The line resistances of AC phases, the line resistance of BC phases of transformer high-voltage winding, transformer high-voltage winding alternate poor, transformer low voltage
The line resistance of the bc phases of the line resistance of the ab phases of winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding,
The information data of transformer corresponding to alternate poor, at this time the time point of transformer low voltage winding, the factory number of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in library are stored in for transformer in the form of recording and carry out winding electricity
In the information database for hindering test;
Step 6:When need to transformer noload losses i.e. no-load current percentage is tested when, transformer electrical parameter
Comprehensive tester is connected with transformer, and the pressure regulator being connected with frequency converter is also connected with transformer, then clicks
Enter the interactive interface tested transformer noload losses into the select button tested transformer noload losses, click starts
The button of test, background control module are just sent to test instruction in PLC, and foreground control module just manipulates transformer electricity ginseng
Number synthesis tester test the i.e. no-load current percentage of transformer noload losses, then the no-load current measured
Percentage and no-load loss, time at this time are sent in computer, and then background control module is no-load current percentage and sky
Load-loss, time showing at this time are on the interactive interface tested transformer noload losses, and no-load current percentage
And no-load loss, time at this time are stored in the form of recording in the information database of for transformer no-load loss test;
Step 7:When needing to test transformer load loss, clicks to enter and transformer load loss tested
Select button enters the interactive interface tested transformer load loss, clicks the button for starting test, background control module is just
Test instruction is sent in PLC, foreground control module just manipulates transformer electrical parameter comprehensive tester and carries out to transformer
Load loss is tested, and then the load loss measured, time at this time is sent in computer, then background control module
Time showing load loss, at this time on the interactive interface tested transformer load loss, and load loss, this
When time be stored in the form of recording for transformer load loss test information database in;
Step 8:When needing to carry out inducting-voltage proof test, the select button entrance pair tested inducting-voltage proof is clicked to enter
The interactive interface of inducting-voltage proof test, clicks the button for starting test, and test instruction is just sent to PLC by background control module
In, foreground control module just manipulates transformer electrical parameter comprehensive tester and test inducting-voltage proof, then survey
The result information of the inducting-voltage proof obtained, time at this time are sent in computer, then knot of the background control module inducting-voltage proof
Fruit information, time showing at this time on the interactive interface tested inducting-voltage proof, and the result information of inducting-voltage proof, this
When time be stored in the form of recording in the information database tested for inducting-voltage proof;
Step 9:When needing to carry out industrial frequency withstand voltage test, the select button entrance pair tested industrial frequency withstand voltage is clicked to enter
The interactive interface of industrial frequency withstand voltage test, clicks the button for starting test, and test instruction is just sent to PLC by background control module
In, foreground control module just manipulates transformer electrical parameter comprehensive tester and test industrial frequency withstand voltage, then survey
The result information of the industrial frequency withstand voltage obtained, time at this time are sent in computer, then knot of the background control module industrial frequency withstand voltage
Fruit information, time showing at this time on the interactive interface tested industrial frequency withstand voltage, and the result information of industrial frequency withstand voltage, this
When time be stored in the form of recording in the information database tested for industrial frequency withstand voltage;
Step 10:When needing progress temperature liter test, clicks to enter and survey is risen into temperature to the select button of temperature liter test
The interactive interface of examination clicks the button for starting test, and background control module is just sent to test instruction in PLC, foreground control
Molding block just manipulates transformer electrical parameter comprehensive tester and test temperature liter, and then the result of the Wen Sheng measured is believed
Breath, time at this time are sent in computer, then background control module the result information of Wen Sheng, time showing at this time right
Temperature rises on the interactive interface of test, and the result information of Wen Sheng, time at this time are stored in the form of recording for temperature
In the information database for rising test.
Transformer parameter on the transformer outer wall nameplate includes product type, rated capacity, high tension voltage, low pressure
Voltage, internal connection, group label, high-tension current, low-tension current, winding material, tap sum, divides impedance voltage percentage
Connect spacing, the number of phases, date of manufacture, nominal transformation ratio, the class of insulation, factory number, manufacturer and product type.
The product type includes dry-type transformer and oil-immersed transformer.
Using said program of the present invention, the computer with RS232 serial ports, the frequency converter with RS485 serial ports,
PLC with RS485 serial ports, the transformer electrical parameter comprehensive tester with RS485 serial ports are gone here and there with RS232
No-load voltage ratio group tester, the straight resistance instrument with RS232 serial ports of mouth, the RS232 serial ports of the computer is via the 1st
Converter to communicate connection with the first connector, and first connector is connected with the RS485 serial ports of frequency converter, described
The first connector be also connected with the second connector, the RS485 serial ports of the PLC is connected with the second connector, described
The second connector be also connected with third connector, the third connector with transformer electrical parameter comprehensive tester be connected
It connects, the third connector is also connected with the 4th connector, and the 4th connector is also the same as the 2nd 232/485 converter
485 interfaces be connected, 232 interfaces of the 2nd 232/485 converter are connected with the RS232 interface of no-load voltage ratio group tester,
4th connector is also connected with the 5th connector, and the 5th connector is also the same as the 3rd 232/485 converter
485 interfaces are connected, and 232 interfaces of the 3rd 232/485 converter are connected with the RS232 interface of straight resistance instrument, the computer
In be provided with background control module, the information database of transformer, for transformer carry out transformation when connection set number test
Information database, for transformer carry out winding resistance test information database, for transformer no-load loss test
Information database, the information database of for transformer load loss test, the information database for inducting-voltage proof test, use
The information database tested is risen in the information database of industrial frequency withstand voltage test, for temperature, foreground control is provided in the PLC
Module.Effectively realizes interaction and meet the requirement of performance.
Description of the drawings
Fig. 1 is the theory structure schematic diagram of the full-automatic testing platform of the transformer of the present invention.
Specific implementation mode
Invention content is described further with reference to the accompanying drawings and examples:
Shown in referring to Fig.1, the full-automatic testing platform of transformer includes computer with RS232 serial ports, is gone here and there with RS485
The frequency converter of mouth, the transformer electrical parameter comprehensive tester with RS485 serial ports, carries RS232 at the PLC with RS485 serial ports
The no-load voltage ratio group tester of serial ports, the straight resistance instrument with RS232 serial ports, the RS232 serial ports of the computer is via the 1st
485 converters to communicate connection with the first connector, and first connector is connected with the RS485 serial ports of frequency converter,
First connector is also connected with the second connector, and the RS485 serial ports of the PLC is connected with the second connector,
Second connector is also connected with third connector, and the third connector is the same as transformer electrical parameter comprehensive tester
It is connected, the third connector is also connected with the 4th connector, and the 4th connector is also the same as the 2nd 232/485 turn
485 interfaces of parallel operation are connected, and 232 interfaces of the 2nd 232/485 converter are connected with the RS232 interface of no-load voltage ratio group tester
It connects, the 4th connector is also connected with the 5th connector, and the 5th connector is also the same as the 3rd 232/485 converter
485 interfaces be connected, 232 interfaces of the 3rd 232/485 converter are connected with the RS232 interface of straight resistance instrument, the electricity
It is provided with background control module, the information database of transformer, for transformer in brain and carries out transformation when connection set number survey
The information database of examination, for transformer carry out the information database of winding resistance test, the test of for transformer no-load loss
Information database, for transformer load loss test information database, for inducting-voltage proof test information database,
The information database of test is risen for the information database of industrial frequency withstand voltage test, for temperature, and foreground control is provided in the PLC
Molding block.
The method of the full-automatic testing platform of the transformer is that steps are as follows:
Step 1:Start computer first, runs background control module, be put into human-computer interaction circle of background control module
Face, on the human-computer interaction interface with needed for typing transformer parameter to be tested input frame, into transformer into
Row transformation when connection set number test select button, into transformer carry out winding resistance test select button, into
Enter the select button that transformer noload losses is tested, into the select button tested transformer load loss, into sense
It answers the select button of voltage-withstand test, rise the select button tested into the select button tested inducting-voltage proof and into temperature;
Step 2:The transformer parameter information on transformer outer wall nameplate tested as needed, passes through human-computer interaction circle
Face needs the input frame of transformer parameter to be tested the transformer parameter data input, the transformer outer wall for typing
Transformer parameter on nameplate includes product type, rated capacity, high tension voltage, low voltage, impedance voltage percentage, inside
It is connection, group label, high-tension current, low-tension current, winding material, tap sum, tap spacing, the number of phases, the date of manufacture, specified
No-load voltage ratio, the class of insulation, factory number, manufacturer and product type, the product type include dry-type transformer and oil
Immersion transformer;
Step 3:After typing, the save button on human-computer interaction interface is clicked, such background control module is just the transformation
Device parameter information is stored in as a record in the information database of transformer;
Step 4:When needing to carry out transformation when connection set number test to transformer, specially:First no-load voltage ratio group is surveyed
Examination instrument is connected with the transformer, then clicks to enter the select button that transformation when connection set number test is carried out to transformer
Into to transformer carry out transformation when connection set number test interactive interface, this to transformer carry out transformation be when coupled
On the interactive interface of group alias test, carried on the interactive interface for carrying out transformation when connection set number test to transformer
It is alternative be manually entered, memory read and program control test as Three models, if selection be program control test mould
Formula is put into the interactive interface of program control test, on the interactive interface of the program control test, by inputting with no-load voltage ratio group tester
The factory number for the transformer being connected, the ambient humidity of transformer position, the environment temperature of transformer position, change
The tapping point of star-like connection or triangle connection type, transformer that depressor uses carries out parameter setting, and then clicking should
The button for starting test on the interactive interface of program control test, the change that just the same no-load voltage ratio group tester is connected
The factory number of depressor, the ambient humidity of transformer position, the environment temperature of transformer position, transformer use
Star-like connection or triangle connection type, transformer the information of tapping point be sent in PLC, PLC then just starts foreground
Control module includes the factory number of transformer, the ambient humidity of transformer position, transformer position to send
Environment temperature, transformer use star-like connection or triangle connection type, transformer tapping point test instruction arrive
In no-load voltage ratio group tester, no-load voltage ratio group tester is allowed to be tested according to the information of the tapping point of transformer with this, most
The ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, change ratio, the transformer of the AC phases of transformer are obtained afterwards
The ratio errors of AC phases, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, and the AB phases of transformer
Become ratio, the ratio error of AB phases of transformer, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer,
The change ratio of the BC phases of transformer, the ratio error of the BC phases of transformer, time point at this time send back computer in real time, then
Background control module is in real time the information of the tapping point of transformer, the AB phases for becoming ratio, transformer of the AB phases of transformer
Ratio error, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer, the change ratio of the BC phases of transformer, change
The ratio errors of the BC phases of depressor, time point at this time, transformer factory number corresponding to transformer information database
In tap sum, tap spacing, the nominal transformation ratio of record be shown on the interactive interface of program control test in real time, while going back handle
The AC of the information of the tapping point of the transformer, the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, transformer
The ratio error of the AC phases for becoming ratio, transformer of phase, the no-load voltage ratio of the BC phases for becoming ratio, transformer of the BC phases of transformer are missed
Difference, time point at this time, transformer factory number corresponding to transformer information database in record tap sum,
Tap spacing, nominal transformation ratio are stored in the information that for transformer carries out transformation when connection set number test in the form of recording
In database;
If the pattern of selection being manually entered, is put into the interactive interface being manually entered, in the friendship being manually entered
On mutual interface, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the ring of transformer position
The star-like connection or triangle connection type, transformer that border humidity, the environment temperature of transformer position, transformer use
Tapping point carry out the pre- typing of parameter, then artificial mode manipulates tapping point of the no-load voltage ratio group tester according to transformer
Information is tested, and the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC of transformer are finally obtained
The ratio error of the AC phases for becoming ratio, transformer of phase, the no-load voltage ratio of the BC phases for becoming ratio, transformer of the BC phases of transformer are missed
Difference, and the change ratio of the AB phases of transformer, the ratio error of AB phases of transformer, the change ratio of the AC phases of transformer, transformation
The ratio error of the AC phases of device, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point record at this time
Enter to the interactive interface being manually entered, then clicks the button for preservation, background control module is in real time point of transformer
The information of contact, the AB phases of transformer become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio,
The ratio error of the AC phases of transformer, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time at this time
Point, transformer factory number corresponding to transformer information database in the tap sum of record, tap spacing, specified
No-load voltage ratio is shown in real time on the interactive interface being manually entered, while also the information of the tapping point of the transformer, transformer
The ratio error of the AB phases for becoming ratio, transformer of AB phases, the no-load voltage ratio of the AC phases for becoming ratio, transformer of the AC phases of transformer are missed
The factory number for becoming ratio, the ratio error of BC phases of transformer, time point at this time, transformer of difference, the BC phases of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of corresponding transformer are deposited in the form of recording
It stores up in the information database that for transformer carries out transformation when connection set number test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in the friendship of the memory access
On mutual interface, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the ring of transformer position
The star-like connection or triangle connection type, transformer that border humidity, the environment temperature of transformer position, transformer use
Tapping point carry out parameter setting, then start no-load voltage ratio group tester and surveyed according to the information of the tapping point of transformer
Examination, finally obtain the AB phases of transformer become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio,
The ratio error of the ratio error of the AC phases of transformer, the BC phases for becoming ratio, transformer of the BC phases of transformer, and transformer
AB phases become ratio, the ratio error of AB phases of transformer, the AC phases for becoming ratio, transformer of the AC phases of transformer no-load voltage ratio
Error, the ratio error of the BC phases of the change ratio of the BC phases of transformer, transformer, time point at this time are stored in the survey of no-load voltage ratio group
In the memory for trying instrument, once clicked for the button of memory access on the interactive interface in memory access, then backstage is controlled
Molding block sends PLC read memory instruction in real time, and the foreground control module in PLC is just being stored in no-load voltage ratio group tester
Memory in transformer AB phases become ratio, the ratio error of AB phases of transformer, the AC phases of transformer change ratio, become
The ratio error of the AC phases of depressor, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point at this time
It is sent to computer, the AB that becomes ratio, transformer of the background control module the information of the tapping point of transformer, the AB phases of transformer
Ratio error, the no-load voltage ratio of the BC phases of transformer of the ratio error of phase, the AC phases for becoming ratio, transformer of the AC phases of transformer
Value, the ratio error of BC phases of transformer, time point at this time, transformer factory number corresponding to transformer Information Number
It is shown in real time on the interactive interface of memory reading according to the tap sum of the record in library, tap spacing, nominal transformation ratio, simultaneously
Also the information of the tapping point of the transformer, the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, transformer
AC phases become ratio, the ratio error of AC phases of transformer, the BC phases for becoming ratio, transformer of the BC phases of transformer no-load voltage ratio
Error, time point at this time, transformer factory number corresponding to transformer information database in record tap it is total
Number, tap spacing, nominal transformation ratio are stored in for transformer in the form of recording and carry out transformation when connection set number test
In information database;
Step 5:When needing to carry out winding resistance test to transformer, specially:First straight resistance instrument is connected with the transformer
It connects, then clicks to enter and the select button of winding resistance test is carried out into transformer progress winding resistance test to transformer
Interactive interface, this to transformer carry out winding resistance test interactive interface on, this to transformer carry out winding resistance
With Three models as alternative manual test, memory reading and program control test on the interactive interface of test, if
What is selected is the pattern of program control test, is put into the interactive interface of program control test, on the interactive interface of the program control test, passes through
Input is the same as the factory number of transformer, the ambient humidity of transformer position, transformer position that directly resistance instrument is connected
Environment temperature, the coil temperature of transformer, transformer tapping point carry out parameter setting, then click the program control test
The button for starting test on interactive interface, the factory number for the transformer that just the same straight resistance instrument is connected, change
The tap of the ambient humidity of depressor position, the environment temperature of transformer position, the coil temperature of transformer, transformer
The information of point is sent in PLC, and PLC includes then the transformation being connected with straight resistance instrument to send with regard to startup foreground control module
The factory number of device, the ambient humidity of transformer position, the environment temperature of transformer position, the coil temperature of transformer
Degree, transformer tapping point information test instruction to straight resistance instrument in, allow straight resistance instrument according to the tapping point of transformer with this
Information tested, finally obtain the line resistances of the AB phases of transformer high-voltage winding, the AC phases of transformer high-voltage winding
The line resistance of the BC phases of line resistance, transformer high-voltage winding, alternate poor, transformer low voltage winding the ab of transformer high-voltage winding
Line resistance, the transformer of the bc phases of the line resistance of phase, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding are low
Press winding alternate difference, and the line resistance of the AC phases of the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding,
The line of the line resistance of the BC phases of transformer high-voltage winding, alternate poor, transformer low voltage winding the ab phases of transformer high-voltage winding
The line resistance of the ac phases of resistance, transformer low voltage winding, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage winding
Alternate poor, at this time time point send back computer in real time, then background control module is in real time transformer high-voltage winding
The line resistances of AB phases, the line resistance of BC phases of the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding, transformation
The line resistance of alternate poor, transformer low voltage winding the ab phases of device high-voltage winding, the ac phases of transformer low voltage winding line resistance,
The line resistance of the bc phases of transformer low voltage winding, the manufacture at alternate poor, at this time the time point, transformer of transformer low voltage winding
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of the corresponding transformer of number are shown in real time
On the interactive interface of program control test, while also the information of the tapping point of the transformer, the AB phases of transformer high-voltage winding
The line resistance of the AC phases of line resistance, transformer high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage around
The line resistance of alternate poor, transformer low voltage winding the ab phases of group, line resistance, the transformer of the ac phases of transformer low voltage winding are low
Press the line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding, the factory number of transformer of winding right
Tap sum, tap spacing, the nominal transformation ratio of record in the information database for the transformer answered are stored in the form of recording
For transformer carries out in the information database of winding resistance test;
If what is selected is the pattern of manual test, it is put into the interactive interface of manual test, in the friendship of the manual test
On mutual interface, by inputting the factory number for the transformer being connected with straight resistance instrument, the ambient humidity of transformer position, becoming
The environment temperature of depressor position, the coil temperature of transformer, transformer tapping point carry out the pre- typing of parameter, then people
The mode of work manipulates straight resistance instrument and is tested according to the information of the tapping point of transformer, finally obtains transformer high-voltage winding
Line resistance, the transformer of the BC phases of the line resistance of AB phases, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding the ab phases of high-voltage winding, the line resistance of the ac phases of transformer low voltage winding, change
The line resistance of the bc phases of depressor low pressure winding, alternate poor, at this time the time point of transformer low voltage winding are entered into manual test
Interactive interface, then click for preservation button, background control module in real time the information of the tapping point of transformer, become
The BC phases of the line resistance of the AB phases of depressor high-voltage winding, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
Line resistance, the line resistance of alternate poor, transformer low voltage winding ab phases of transformer high-voltage winding, transformer low voltage winding
Alternate poor, at this time the time of the line resistance of ac phases, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage winding
Point, transformer factory number corresponding to transformer information database in the tap sum of record, tap spacing, specified
No-load voltage ratio is shown on the interactive interface of manual test in real time, at the same also the line resistance of the AB phases of the transformer high-voltage winding,
The phase of the line resistance of the AC phases of transformer high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
Between the line resistances of poor, transformer low voltage winding ab phases, transformer low voltage winding ac phases line resistance, transformer low voltage winding
The line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number corresponding to change
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of depressor are stored in the form of recording for becoming
Depressor carries out in the information database of winding resistance test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in the friendship of the memory access
On mutual interface, by inputting the factory number for the transformer being connected with straight resistance instrument, the ambient humidity of transformer position, becoming
The environment temperature of depressor position, the coil temperature of transformer, transformer tapping point carry out parameter setting, then start
No-load voltage ratio group tester is tested according to the information of the tapping point of transformer, finally obtains the AB phases of transformer high-voltage winding
Line resistance, the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding BC phases line resistance, transformer high-voltage
Line resistance, the transformer of the line resistance of alternate poor, transformer low voltage winding the ab phases of winding, the ac phases of transformer low voltage winding
The line resistance of the bc phases of low pressure winding, the alternate difference of transformer low voltage winding, and the line of the AB phases of transformer high-voltage winding electricity
Resistance, the line resistance of BC phases of the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding ab phases, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage around
The line resistance of bc phases of group, alternate poor, at this time the time point of transformer low voltage winding are stored in the interior of no-load voltage ratio group tester
In depositing, once clicked for the button of memory access on the interactive interface in memory access, then background control module is real
When PLC sent read memory instruction, the foreground control module in PLC is just the transformer being stored in the memory of straight resistance instrument
The line of the BC phases of the line resistance of the AB phases of high-voltage winding, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding the ab phases of resistance, transformer high-voltage winding, the ac phases of transformer low voltage winding
Line resistance, the line resistance of bc phases of transformer low voltage winding, alternate poor, at this time the time point of transformer low voltage winding send
To computer, line resistance, transformer of the background control module the information of the tapping point of transformer, the AB phases of transformer high-voltage winding
The alternate poor, change of the line resistance of the AC phases of high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
The bc phases of the line resistance of the ab phases of depressor low pressure winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding
Line resistance, alternate poor, at this time the time point of transformer low voltage winding, transformer corresponding to the factory number of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in information database are shown in the interactive interface of memory reading in real time
On, while also the information of the tapping point of the transformer, the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding
The line resistances of AC phases, the line resistance of BC phases of transformer high-voltage winding, transformer high-voltage winding alternate poor, transformer low voltage
The line resistance of the bc phases of the line resistance of the ab phases of winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding,
The information data of transformer corresponding to alternate poor, at this time the time point of transformer low voltage winding, the factory number of transformer
Tap sum, tap spacing, the nominal transformation ratio of record in library are stored in for transformer in the form of recording and carry out winding electricity
In the information database for hindering test;
Step 6:When need to transformer noload losses i.e. no-load current percentage is tested when, transformer electrical parameter
Comprehensive tester is connected with transformer, and the pressure regulator being connected with frequency converter is also connected with transformer, then clicks
Enter the interactive interface tested transformer noload losses into the select button tested transformer noload losses, click starts
The button of test, background control module are just sent to test instruction in PLC, and foreground control module just manipulates transformer electricity ginseng
Number synthesis tester test the i.e. no-load current percentage of transformer noload losses, then the no-load current measured
Percentage and no-load loss, time at this time are sent in computer, and then background control module is no-load current percentage and sky
Load-loss, time showing at this time are on the interactive interface tested transformer noload losses, and no-load current percentage
And no-load loss, time at this time are stored in the form of recording in the information database of for transformer no-load loss test;
Step 7:When needing to test transformer load loss, clicks to enter and transformer load loss tested
Select button enters the interactive interface tested transformer load loss, clicks the button for starting test, background control module is just
Test instruction is sent in PLC, foreground control module just manipulates transformer electrical parameter comprehensive tester and carries out to transformer
Load loss is tested, and then the load loss measured, time at this time is sent in computer, then background control module
Time showing load loss, at this time on the interactive interface tested transformer load loss, and load loss, this
When time be stored in the form of recording for transformer load loss test information database in;
Step 8:When needing to carry out inducting-voltage proof test, the select button entrance pair tested inducting-voltage proof is clicked to enter
The interactive interface of inducting-voltage proof test, clicks the button for starting test, and test instruction is just sent to PLC by background control module
In, foreground control module just manipulates transformer electrical parameter comprehensive tester and test inducting-voltage proof, then survey
The result information of the inducting-voltage proof obtained, time at this time are sent in computer, then knot of the background control module inducting-voltage proof
Fruit information, time showing at this time on the interactive interface tested inducting-voltage proof, and the result information of inducting-voltage proof, this
When time be stored in the form of recording in the information database tested for inducting-voltage proof;
Step 9:When needing to carry out industrial frequency withstand voltage test, the select button entrance pair tested industrial frequency withstand voltage is clicked to enter
The interactive interface of industrial frequency withstand voltage test, clicks the button for starting test, and test instruction is just sent to PLC by background control module
In, foreground control module just manipulates transformer electrical parameter comprehensive tester and test industrial frequency withstand voltage, then survey
The result information of the industrial frequency withstand voltage obtained, time at this time are sent in computer, then knot of the background control module industrial frequency withstand voltage
Fruit information, time showing at this time on the interactive interface tested industrial frequency withstand voltage, and the result information of industrial frequency withstand voltage, this
When time be stored in the form of recording in the information database tested for industrial frequency withstand voltage;
Step 10:When needing progress temperature liter test, clicks to enter and survey is risen into temperature to the select button of temperature liter test
The interactive interface of examination clicks the button for starting test, and background control module is just sent to test instruction in PLC, foreground control
Molding block just manipulates transformer electrical parameter comprehensive tester and test temperature liter, and then the result of the Wen Sheng measured is believed
Breath, time at this time are sent in computer, then background control module the result information of Wen Sheng, time showing at this time right
Temperature rises on the interactive interface of test, and the result information of Wen Sheng, time at this time are stored in the form of recording for temperature
In the information database for rising test.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical essence of the invention,
Within the spirit and principles in the present invention, to any simple modification, equivalent replacement and improvement etc. made by above example, still
Belong within the protection domain of technical solution of the present invention.
Claims (4)
1. a kind of full-automatic testing platform of transformer, which is characterized in that include computer with RS232 serial ports, gone here and there with RS485
The frequency converter of mouth, the transformer electrical parameter comprehensive tester with RS485 serial ports, carries RS232 at the PLC with RS485 serial ports
The no-load voltage ratio group tester of serial ports, the straight resistance instrument with RS232 serial ports, the RS232 serial ports of the computer is via the 1st
485 converters to communicate connection with the first connector, and first connector is connected with the RS485 serial ports of frequency converter,
First connector is also connected with the second connector, and the RS485 serial ports of the PLC is connected with the second connector,
Second connector is also connected with third connector, and the third connector is the same as transformer electrical parameter comprehensive tester
It is connected, the third connector is also connected with the 4th connector, and the 4th connector is also the same as the 2nd 232/485 turn
485 interfaces of parallel operation are connected, and 232 interfaces of the 2nd 232/485 converter are connected with the RS232 interface of no-load voltage ratio group tester
It connects, the 4th connector is also connected with the 5th connector, and the 5th connector is also the same as the 3rd 232/485 converter
485 interfaces be connected, 232 interfaces of the 3rd 232/485 converter are connected with the RS232 interface of straight resistance instrument, the electricity
It is provided with background control module, the information database of transformer, for transformer in brain and carries out transformation when connection set number survey
The information database of examination, for transformer carry out the information database of winding resistance test, the test of for transformer no-load loss
Information database, for transformer load loss test information database, for inducting-voltage proof test information database,
The information database of test is risen for the information database of industrial frequency withstand voltage test, for temperature, and foreground control is provided in the PLC
Molding block.
2. a kind of method of the full-automatic testing platform of transformer according to claim 1, it is characterised in that:Such as including step
Under:
Step 1:Start computer first, runs background control module, be put into the human-computer interaction interface of background control module, institute
It carried on the human-computer interaction interface stated and needs the input frame of transformer parameter to be tested for typing, carry out transformation into transformer
When joint group alias test select button, into transformer carry out winding resistance test select button, into become
Depressor no-load loss test select button, into the select button tested transformer load loss, into inducting-voltage proof
The select button of test rises the select button tested into the select button tested inducting-voltage proof and into temperature;
Step 2:The transformer parameter information on transformer outer wall nameplate tested as needed, passes through the human-computer interaction interface
Need the input frame of transformer parameter to be tested the transformer parameter data input for typing;
Step 3:After typing, the save button on human-computer interaction interface is clicked, such background control module just joins the transformer
Number information is stored in as a record in the information database of transformer;
Step 4:When needing to carry out transformation when connection set number test to transformer, specially:First no-load voltage ratio group tester
It is connected with the transformer, then clicks to enter the select button entrance for carrying out transformation when connection set number test to transformer
The interactive interface that transformation when connection set number test is carried out to transformer carries out transformation when connection set at this to transformer
Number test interactive interface on, this to transformer carry out transformation when connection set number test interactive interface on for
Selection be manually entered, memory read and program control test as Three models, if selection be program control test pattern, just
Into the interactive interface of program control test, on the interactive interface of the program control test, it is connected with no-load voltage ratio group tester by input
The factory number of the transformer connect, the ambient humidity of transformer position, the environment temperature of transformer position, transformer
The star-like connection of use or triangle connection type, transformer tapping point carry out parameter setting, it is program-controlled then to click this
The button for starting test on the interactive interface of test, the transformer that just the same no-load voltage ratio group tester is connected
Factory number, the ambient humidity of transformer position, the environment temperature of transformer position, transformer use star
The information of tapping point of connection or triangle connection type, transformer is sent in PLC, and PLC then just starts foreground control
Module come send include the factory number of transformer, the ambient humidity of transformer position, transformer position ring
Star-like connection that border temperature, transformer use or triangle connection type, transformer tapping point test instruction to no-load voltage ratio
In group tester, the no-load voltage ratio group tester is allowed to be tested according to the information of the tapping point of transformer with this, finally
To the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC of the change ratio of the AC phases of transformer, transformer
The ratio error of the ratio error of phase, the BC phases for becoming ratio, transformer of the BC phases of transformer, and the change of the AB phases transformer
Ratio error, the transformation of the ratio error of the AB phases of ratio, transformer, the AC phases for becoming ratio, transformer of the AC phases of transformer
The change ratio of the BC phases of device, the ratio error of the BC phases of transformer, time point at this time send back computer in real time, then backstage
Control module is in real time the information of the tapping point of transformer, the no-load voltage ratio of the AB phases for becoming ratio, transformer of the AB phases of transformer
Change ratio, the transformer of error, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer, the BC phases of transformer
The ratio errors of BC phases, time point at this time, transformer factory number corresponding to transformer information database in
Tap sum, tap spacing, the nominal transformation ratio of record are shown on the interactive interface of program control test in real time, while also the change
The information of the tapping point of depressor, the AB phases of transformer become ratio, the ratio error of AB phases of transformer, the AC phases of transformer
Become ratio, the ratio error of AC phases of transformer, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, this
When time point, transformer factory number corresponding to transformer information database in record tap sum, tap
Spacing, nominal transformation ratio are stored in the information data that for transformer carries out transformation when connection set number test in the form of recording
In library;
If the pattern of selection being manually entered, is put into the interactive interface being manually entered, in interaction circle being manually entered
On face, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the environmental wet of transformer position
Point of star-like connection or triangle connection type, transformer that degree, the environment temperature of transformer position, transformer use
Contact carries out the pre- typing of parameter, and then artificial mode manipulates information of the no-load voltage ratio group tester according to the tapping point of transformer
It is tested, finally obtains the ratio errors of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC phases of transformer
Become the ratio error of the AC phases of ratio, transformer, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, and
The ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC of the change ratio of the AC phases of transformer, transformer
The ratio error of phase, the ratio error of the BC phases of the change ratio of the BC phases of transformer, transformer, time point at this time are entered into people
Then the interactive interface of work input clicks the button for preservation, background control module is in real time the tapping point of transformer
Change ratio, the transformer of information, the ratio error of the AB phases for becoming ratio, transformer of the AB phases of transformer, the AC phases of transformer
The ratio errors of AC phases, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point at this time, become
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of transformer corresponding to the factory number of depressor
It is shown in real time on the interactive interface being manually entered, while also the information of the tapping point of the transformer, the AB phases of transformer
Become ratio, the ratio error of AB phases of transformer, the ratio error of the AC phases for becoming ratio, transformer of the AC phases of transformer,
The ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point at this time, the factory number institute of transformer are right
Tap sum, tap spacing, the nominal transformation ratio of record in the information database for the transformer answered are stored in the form of recording
For transformer carries out in the information database of transformation when connection set number test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in interaction circle of the memory access
On face, by inputting the factory number for the transformer being connected with no-load voltage ratio group tester, the environmental wet of transformer position
Point of star-like connection or triangle connection type, transformer that degree, the environment temperature of transformer position, transformer use
Contact carries out parameter setting, then starts no-load voltage ratio group tester and is tested according to the information of the tapping point of transformer,
Finally obtain the change ratio of the AB phases of transformer, the ratio error of AB phases of transformer, the change ratio of the AC phases of transformer, transformation
The ratio error of the ratio error of the AC phases of device, the BC phases for becoming ratio, transformer of the BC phases of transformer, and the AB of transformer
The ratio error of the AB phases for becoming ratio, transformer of phase, the no-load voltage ratio of the AC phases for becoming ratio, transformer of the AC phases of transformer are missed
Difference, the ratio error of the BC phases of the change ratio of the BC phases of transformer, transformer, time point at this time are stored in the test of no-load voltage ratio group
In the memory of instrument, once clicked for the button of memory access on the interactive interface in memory access, then Background control
Module sends PLC read memory instruction in real time, and the foreground control module in PLC is just being stored in no-load voltage ratio group tester
The change ratio of the AB phases of transformer in memory, the ratio error of AB phases of transformer, the change ratio of the AC phases of transformer, transformation
The ratio error of the AC phases of device, the ratio error of the BC phases for becoming ratio, transformer of the BC phases of transformer, time point hair at this time
Computer is given, background control module is the information of the tapping point of transformer, the AB phases for becoming ratio, transformer of the AB phases of transformer
Ratio error, the AC phases of transformer become ratio, the ratio error of AC phases of transformer, the BC phases of transformer change ratio,
The ratio errors of the BC phases of transformer, time point at this time, transformer factory number corresponding to transformer information data
Tap sum, tap spacing, the nominal transformation ratio of record in library are shown in real time on the interactive interface of memory reading, simultaneously also
The information of the tapping point of the transformer, the ratio errors of the AB phases for becoming ratio, transformer of the AB phases of transformer, transformer
The ratio error of the AC phases for becoming ratio, transformer of AC phases, the no-load voltage ratio of the BC phases for becoming ratio, transformer of the BC phases of transformer are missed
Difference, time point at this time, transformer factory number corresponding to transformer information database in record tap sum,
Tap spacing, nominal transformation ratio are stored in the information that for transformer carries out transformation when connection set number test in the form of recording
In database;
Step 5:When needing to carry out winding resistance test to transformer, specially:First straight resistance instrument is connected with the transformer, so
The friendship for entering to the select button of transformer progress winding resistance test and carrying out winding resistance test to transformer is clicked to enter afterwards
Mutual interface, this to transformer carry out winding resistance test interactive interface on, this to transformer carry out winding resistance test
Interactive interface on alternative manual test, memory read and program control test as Three models, if selection
Be program control test pattern, be put into the interactive interface of program control test, on the interactive interface of the program control test, pass through input
The factory number of transformer that is connected with straight resistance instrument, the ambient humidity of transformer position, transformer position ring
Border temperature, the coil temperature of transformer, transformer tapping point carry out parameter setting, then click the interaction of the program control test
The button for starting test on interface, factory number, the transformer of the transformer that just the same straight resistance instrument is connected
The tapping point of the ambient humidity of position, the environment temperature of transformer position, the coil temperature of transformer, transformer
Information is sent in PLC, and PLC includes then the transformer being connected with straight resistance instrument to send with regard to startup foreground control module
Factory number, the ambient humidity of transformer position, the environment temperature of transformer position, transformer coil temperature,
In the test instruction of the information of the tapping point of transformer to straight resistance instrument, allow straight resistance instrument according to the letter of the tapping point of transformer with this
Breath is tested, finally obtain the line resistances of the AB phases of transformer high-voltage winding, the AC phases of transformer high-voltage winding line electricity
Resistance, the line resistance of BC phases of transformer high-voltage winding, transformer high-voltage winding alternate poor, transformer low voltage winding ab phases
The line resistance of the ac phases of line resistance, transformer low voltage winding, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage around
The alternate difference of group, and the line resistance the AC phases of the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding, transformation
The line resistance of the BC phases of device high-voltage winding, alternate poor, transformer low voltage winding the ab phases of transformer high-voltage winding line resistance,
The phase of the line resistance of the ac phases of transformer low voltage winding, the line resistance of the bc phases of transformer low voltage winding, transformer low voltage winding
Between time point poor, at this time send back computer in real time, then background control module is in real time the AB of transformer high-voltage winding
Line resistance, the transformer of the BC phases of the line resistance of phase, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding are high
Press the line resistance of alternate poor, transformer low voltage winding the ab phases of winding, the line resistance of the ac phases of transformer low voltage winding, transformation
The line resistance of the bc phases of device low pressure winding, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of corresponding transformer are shown in journey in real time
On the interactive interface for controlling test, while also the line electricity of the information of the tapping point of the transformer, the AB phases of transformer high-voltage winding
Resistance, the line resistance of BC phases of the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding ab phases, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage around
Group the line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number corresponding to
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of transformer are stored in the form of recording and are used for
Transformer carries out in the information database of winding resistance test;
If what is selected is the pattern of manual test, it is put into the interactive interface of manual test, in interaction circle of the manual test
On face, by inputting the factory number of transformer, the ambient humidity of transformer position, the transformer that are connected with straight resistance instrument
The environment temperature of position, the coil temperature of transformer, transformer tapping point carry out the pre- typing of parameter, it is then artificial
Mode manipulates straight resistance instrument and is tested according to the information of the tapping point of transformer, finally obtains the AB phases of transformer high-voltage winding
Line resistance, the line resistance of AC phases of transformer high-voltage winding, transformer high-voltage winding BC phases line resistance, transformer high-voltage
Line resistance, the transformer of the line resistance of alternate poor, transformer low voltage winding the ab phases of winding, the ac phases of transformer low voltage winding
The line resistance of the bc phases of low pressure winding, the alternate poor, time point at this time of transformer low voltage winding are entered into the friendship of manual test
Then the button for preservation, the background control module information the tapping point of transformer, transformer in real time are clicked in mutual interface
The line of the BC phases of the line resistance of the AB phases of high-voltage winding, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistance of alternate poor, transformer low voltage winding the ab phases of resistance, transformer high-voltage winding, the ac phases of transformer low voltage winding
Line resistance, the line resistance of bc phases of transformer low voltage winding, transformer low voltage winding alternate poor, at this time time point, become
Tap sum, tap spacing, the nominal transformation ratio of record in the information database of transformer corresponding to the factory number of depressor
It is shown on the interactive interface of manual test in real time, while the line resistance also the AB phases of the transformer high-voltage winding, transformation
The line resistance of the AC phases of device high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding it is alternate it is poor,
The bc of the line resistance of the ab phases of transformer low voltage winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding
The line resistance of phase, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number corresponding to transformer
Information database in tap sum, tap spacing, the nominal transformation ratio of record for transformer is stored in the form of recording
In the information database for carrying out winding resistance test;
If what is selected is the pattern of memory access, it is put into the interactive interface of memory access, in interaction circle of the memory access
On face, by inputting the factory number of transformer, the ambient humidity of transformer position, the transformer that are connected with straight resistance instrument
The environment temperature of position, the coil temperature of transformer, transformer tapping point carry out parameter setting, then start no-load voltage ratio
Group tester is tested according to the information of the tapping point of transformer, finally obtains the line of the AB phases of transformer high-voltage winding
The line resistance of the AC phases of resistance, transformer high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistances of alternate poor, transformer low voltage winding ab phases, transformer low voltage winding ac phases line resistance, transformer low voltage
The line resistance of the bc phases of winding, the alternate difference of transformer low voltage winding, and the line resistance of the AB phases of transformer high-voltage winding, change
The line resistance of the AC phases of depressor high-voltage winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding it is alternate
Difference, the line resistances of the ac phases of the line resistance of ab phases of transformer low voltage winding, transformer low voltage winding, transformer low voltage winding
The line resistance of bc phases, alternate poor, at this time the time point of transformer low voltage winding are stored in the memory of no-load voltage ratio group tester,
Once clicked for the button of memory access on the interactive interface in memory access, then background control module is right in real time
PLC, which is sent, reads memory instruction, the foreground control module in PLC just the transformer high-voltage being stored in the memory of straight resistance instrument around
The line resistance of the BC phases of the line resistance of the AB phases of group, the line resistance of the AC phases of transformer high-voltage winding, transformer high-voltage winding becomes
The line electricity of the line resistance of alternate poor, transformer low voltage winding the ab phases of depressor high-voltage winding, the ac phases of transformer low voltage winding
Resistance, the line resistance of bc phases of transformer low voltage winding, alternate poor, at this time the time point of transformer low voltage winding are sent to electricity
Brain, line resistance, transformer high-voltage of the background control module the information of the tapping point of transformer, the AB phases of transformer high-voltage winding
The alternate poor, transformer of the line resistance of the AC phases of winding, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
The line of the bc phases of the line resistance of the ab phases of low pressure winding, the line resistance of the ac phases of transformer low voltage winding, transformer low voltage winding
Resistance, alternate poor, at this time the time point of transformer low voltage winding, transformer factory number corresponding to transformer information
Tap sum, tap spacing, the nominal transformation ratio of record in database are shown in real time on the interactive interface of memory reading, together
When also the information of the tapping point of the transformer, the AC of the line resistance of the AB phases of transformer high-voltage winding, transformer high-voltage winding
Alternate poor, the transformer low voltage winding of the line resistance of phase, the line resistance of the BC phases of transformer high-voltage winding, transformer high-voltage winding
The line resistances of ab phases, the line resistance of bc phases of the line resistance of ac phases of transformer low voltage winding, transformer low voltage winding, transformation
In the information database of transformer corresponding to alternate poor, at this time the time point of device low pressure winding, the factory number of transformer
Tap sum, tap spacing, the nominal transformation ratio of record be stored in for transformer in the form of recording and carry out winding resistance survey
In the information database of examination;
Step 6:When need to transformer noload losses i.e. no-load current percentage is tested when, transformer electrical parameter integrate
Tester simultaneous transformer is connected, and the pressure regulator being connected with frequency converter is also connected with transformer, then clicks to enter
The interactive interface tested transformer noload losses is entered to the select button of transformer noload losses test, click starts to test
Button, background control module just test instruction be sent in PLC, it is comprehensive that foreground control module just manipulates transformer electrical parameter
It closes tester test the i.e. no-load current percentage of transformer noload losses, then the no-load current percentage measured
Number and no-load loss, time at this time are sent in computer, and then background control module is no-load current percentage and unloaded damage
Consumption, time showing at this time are on the interactive interface tested transformer noload losses, and no-load current percentage and sky
Load-loss, time at this time are stored in the form of recording in the information database of for transformer no-load loss test;
Step 7:When needing to test transformer load loss, the selection tested transformer load loss is clicked to enter
Button enters the interactive interface tested transformer load loss, clicks the button for starting test, background control module is just survey
Examination instruction is sent in PLC, and foreground control module just manipulates transformer electrical parameter comprehensive tester and carries out to transformer load
Loss is tested, and then the load loss measured, time at this time are sent in computer, and then background control module is negative
Load-loss, time showing at this time are on the interactive interface tested transformer load loss, and load loss, at this time
Time is stored in the form of recording in the information database of for transformer load loss test;
Step 8:When needing to carry out inducting-voltage proof test, clicks to enter and the select button that inducting-voltage proof is tested is entered to induction
The interactive interface of voltage-withstand test clicks the button for starting test, and background control module is just sent to test instruction in PLC,
Foreground control module just manipulates transformer electrical parameter comprehensive tester and test inducting-voltage proof, then the sense measured
Answer the result information of pressure resistance, time to be at this time sent in computer, then background control module the result information of inducting-voltage proof,
Time showing at this time on the interactive interface tested inducting-voltage proof, and the result information of inducting-voltage proof, at this time when
Between be stored in the form of record in the information database tested for inducting-voltage proof;
Step 9:When needing to carry out industrial frequency withstand voltage test, clicks to enter and the select button that industrial frequency withstand voltage is tested is entered to power frequency
The interactive interface of voltage-withstand test clicks the button for starting test, and background control module is just sent to test instruction in PLC,
Foreground control module just manipulates transformer electrical parameter comprehensive tester and test industrial frequency withstand voltage, then the work measured
The result information of frequency pressure resistance, time at this time are sent in computer, then background control module the result information of industrial frequency withstand voltage,
Time showing at this time on the interactive interface tested industrial frequency withstand voltage, and the result information of industrial frequency withstand voltage, at this time when
Between be stored in the form of record in the information database tested for industrial frequency withstand voltage;
Step 10:When needs, which carry out temperature, rises test, clicks to enter and the warm select button for rising test is entered to temperature liter test
Interactive interface clicks the button for starting test, and background control module is just sent to test instruction in PLC, and foreground controls mould
Block just manipulate transformer electrical parameter comprehensive tester carry out to temperature liter test, then the result information of the Wen Sheng measured,
Time at this time is sent in computer, then background control module the result information of Wen Sheng, time showing at this time to temperature
On the interactive interface for rising test, and the result information of Wen Sheng, time at this time are stored in the form of recording for Wen Sheng
In the information database of test.
3. a kind of full-automatic testing platform of transformer according to claim 2, it is characterised in that:The transformer outer wall
Transformer parameter on nameplate includes product type, rated capacity, high tension voltage, low voltage, impedance voltage percentage, inside
It is connection, group label, high-tension current, low-tension current, winding material, tap sum, tap spacing, the number of phases, the date of manufacture, specified
No-load voltage ratio, the class of insulation, factory number, manufacturer and product type.
4. a kind of full-automatic testing platform of transformer according to claim 2, it is characterised in that:The product type packet
Include dry-type transformer and oil-immersed transformer.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109507500A (en) * | 2018-11-08 | 2019-03-22 | 国家电网有限公司 | A kind of dedicated computing device for electrical test |
CN114217178A (en) * | 2021-11-04 | 2022-03-22 | 深圳市海浦蒙特科技有限公司 | Method and system for voltage withstand test of frequency converter and computer readable storage medium |
-
2018
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109507500A (en) * | 2018-11-08 | 2019-03-22 | 国家电网有限公司 | A kind of dedicated computing device for electrical test |
CN114217178A (en) * | 2021-11-04 | 2022-03-22 | 深圳市海浦蒙特科技有限公司 | Method and system for voltage withstand test of frequency converter and computer readable storage medium |
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