CN112051477A - Full-automatic high-voltage transformer error and excitation characteristic testing device - Google Patents
Full-automatic high-voltage transformer error and excitation characteristic testing device Download PDFInfo
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- CN112051477A CN112051477A CN202010940922.6A CN202010940922A CN112051477A CN 112051477 A CN112051477 A CN 112051477A CN 202010940922 A CN202010940922 A CN 202010940922A CN 112051477 A CN112051477 A CN 112051477A
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- voltage transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1253—Measuring galvano-magnetic properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention discloses a full-automatic testing device for the error and excitation characteristics of a high-voltage transformer, which comprises an aluminum profile frame, wherein a transformer primary side wiring mechanism, a transformer secondary side wiring mechanism and an electrical measurement function module are arranged on the aluminum profile frame, an electrical measurement instrument is placed below the aluminum profile frame, and the transformer primary side wiring mechanism comprises a guide rod cylinder I, a guide rod I, an insulator, a conductive copper bar, a transformer primary side X contact terminal and a transformer primary side A contact terminal. The invention has high integration efficiency and small occupied area. The device that this scheme provided can carry out error test, excitation characteristic test to high voltage transformer in proper order, collects both tests and an organic whole, and degree of automation is high. The automatic transfer, the automatic conveying, the automatic wire connecting and disconnecting, the automatic switching test and the automatic uploading of test data of the high-voltage transformer can be realized, and the centralized management, the high reliability and the full automation can be realized to complete all tests. The method is suitable for the verification of the high-voltage transformer.
Description
Technical Field
The invention relates to the technical field of high-voltage metering detection, in particular to a full-automatic testing device for the error and excitation characteristics of a high-voltage transformer.
Background
The demand for high voltage transformers increases as the market further expands, and the detection of high voltage transformers is under increasing pressure. At present, the detection mode aiming at the error and the excitation characteristic of the high-voltage transformer has low efficiency and lagged management and control means, and a set of safe and effective centralized integrated control scheme is not formed. In the existing stage industry, the testing device generally has the problems of single function, independent complete set, incomplete equipment configuration function and the like, so that the testing device for various tests needs to be equipped for completing the tests of errors and excitation characteristics, and during the test, manual carrying work needs to be carried out among different testing equipment, so that the equipment purchase cost and the labor cost are increased. Meanwhile, the wires need to be manually and repeatedly disconnected in the switching of different tests, so that the potential safety hazard of personnel operation and the test error rate caused by wire connection deviation are inevitably increased.
Disclosure of Invention
The invention aims to provide a full-automatic high-voltage transformer error and excitation characteristic testing device.
In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic high-voltage transformer error and excitation characteristic testing device comprises an aluminum profile frame, wherein a transformer primary side wiring mechanism, a transformer secondary side wiring mechanism and an electrical measurement function module are mounted on the aluminum profile frame, and an electrical measurement instrument is placed below the aluminum profile frame;
the primary side wiring mechanism of the mutual inductor comprises a guide rod cylinder I, a guide rod I, an insulator, a conductive copper bar, a primary side X contact terminal of the mutual inductor and a primary side A contact terminal of the mutual inductor, wherein the primary side X contact terminal of the mutual inductor is connected with the conductive copper bar through which the primary side A contact terminal of the mutual inductor passes;
the secondary side wiring mechanism of the mutual inductor comprises a guide rod cylinder II, a guide rod II and a secondary side contact terminal of the mutual inductor;
the second guide rod cylinder is installed on the installation seat, the telescopic end of the second guide rod cylinder and the second guide rod are both installed on the section bar support body, and the contact terminal of the secondary side of the mutual inductor is installed above and below the section bar support body;
the electrical measurement function module comprises a switching control module, an error switching module, a contactor of a program-controlled source from the self-boosting standard voltage transformer, a contactor of an excitation characteristic tester and a module power supply, wherein the switching control module is in signal connection with a tester, the switching control module is in signal connection with the error switching module, the tester is in signal connection with an industrial personal computer, and the tester is in signal connection with the contactor of the program-controlled source from the self-boosting standard voltage transformer;
the electric measuring instrument comprises a program control source and a standard voltage transformer, the contactor of the program control source to the self-boosting standard voltage transformer is in signal connection with the program control source, and the program control source is in signal connection with the standard voltage transformer.
Preferably, a limiting plate is mounted on the guide rod cylinder I, and the guide rod penetrates through the limiting plate and is movably connected with the limiting plate.
Preferably, the number of the installation seats is three, the number of the second guide rods is two, and the installation seats are respectively sleeved on the two second guide rods.
Preferably, the aluminum profile frame is internally provided with a high-voltage cable insulation support.
Preferably, the number of the module power sources is two.
Preferably, the contactor from the program control source to the excitation characteristic tester is arranged on one side of the contactor from the program control source to the self-boosting standard voltage transformer.
Preferably, the error switching module is arranged above the switching control module.
Preferably, the switching control module is arranged above the module power supply.
The invention provides a full-automatic testing device for the error and excitation characteristics of a high-voltage transformer. The method has the following beneficial effects:
1. high-efficiency integration and small occupied area. The device provided by the scheme can be used for carrying out an error test and an excitation characteristic test on the high-voltage transformer in sequence, and integrates the tests of the high-voltage transformer and the excitation characteristic test.
2. The automation degree is high. The automatic transfer, the automatic conveying, the automatic wire connecting and disconnecting, the automatic switching test and the automatic uploading of test data of the high-voltage transformer can be realized, and the centralized management, the high reliability and the full automation can be realized to complete all tests.
3. The hardware cost is low. In view of the fact that partial test lines of the voltage transformer error and excitation characteristic test can be used mutually, equipment and line multiplexing is improved to a great extent, and hardware cost is reduced.
4. The manual participation is reduced, and the safety is higher. The device provided by the invention can realize automatic circulation, automatic conveying, automatic wire connecting and disconnecting and automatic switching tests of the high-voltage transformer, does not need manual participation, and avoids potential safety hazards possibly brought by the tests.
5. The accuracy of the test data is high. The device provided by the invention adopts the flexible compression joint mechanism to realize the reliable contact between the test end and the tested object, and ensures the precision of test data.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a schematic diagram of a primary side wiring mechanism of the transformer of the present invention;
FIG. 5 is a schematic diagram of a secondary side wiring mechanism of the mutual inductor according to the present invention;
FIG. 6 is a schematic diagram of an electrical functional test module according to the present invention.
In the figure: the system comprises an aluminum profile frame 1, a mutual inductor primary side wiring mechanism 2, a guide rod cylinder I21, a guide rod cylinder I22, insulators 23, a conductive copper bar 24, a mutual inductor primary side X contact terminal 25, a mutual inductor primary side A contact terminal 26, a mutual inductor secondary side wiring mechanism 3, a guide rod cylinder II 31, a guide rod cylinder II 32, a mutual inductor secondary side contact terminal 33, an electrical measurement function module 4, a switching control module 41, an error switching module 42, a self-boosting standard voltage mutual inductor contactor 43, a self-boosting standard voltage mutual inductor 44, an excitation characteristic tester contactor 45, a module power supply 5, an electrical measurement instrument 51, a program control source 52 and a high-voltage cable insulation support 6.
Detailed Description
As shown in fig. 1 to 6, the present invention provides a technical solution: the utility model provides a full-automatic high-voltage transformer error and excitation characteristic testing arrangement, includes aluminum section frame 1, its characterized in that: a mutual inductor primary side wiring mechanism 2, a mutual inductor secondary side wiring mechanism 3 and an electric measurement function module 4 are arranged on an aluminum profile frame 1, an electric measurement instrument 5 is arranged below the aluminum profile frame 1, a high-voltage cable insulation support 6 is arranged in the aluminum profile frame 1,
the transformer primary side wiring mechanism 2 comprises a guide rod cylinder I21, a guide rod I22, an insulator 23, a conductive copper bar 24, a transformer primary side X contact terminal 25 and a transformer primary side A contact terminal 26, the transformer primary side X contact terminal 25 is connected with the transformer primary side A contact terminal 26 through the conductive copper bar 24, the insulator 23 is installed on the conductive copper bar 24, a support is installed at the top of the insulator 23, the guide rod I22 is installed on the support, and the telescopic end of the guide rod cylinder I21 is installed on the support; a limiting plate is arranged on the guide rod cylinder I21, and a guide rod I22 penetrates through the limiting plate and is movably connected with the limiting plate
The secondary side wiring mechanism 3 of the mutual inductor comprises a guide rod cylinder II 31, a guide rod II 32 and a secondary side contact terminal 33 of the mutual inductor;
the guide rod cylinder II 31 is arranged on the installation seats, the telescopic end of the guide rod cylinder II 31 and the guide rod II 32 are both arranged on the section bar bracket body, the secondary side contact terminal 33 of the mutual inductor is arranged above and below the section bar bracket body, the number of the installation seats is three, the number of the guide rod II 32 is two, the two installation seats are respectively sleeved on the two guide rod II 32,
the electrical measurement function module 4 comprises a switching control module 41, an error switching module 42, a contactor 43 from a program control source to a self-boosting standard voltage transformer, a contactor 44 from the program control source to an excitation characteristic tester and a module power supply 45, wherein the switching control module 41 is in signal connection with an inspection instrument, the switching control module 41 is in signal connection with the error switching module 42, the inspection instrument is in signal connection with an industrial personal computer, and the inspection instrument is in signal connection with the contactor 43 from the program control source to the self-boosting standard voltage transformer; the number of the module power supplies 45 is two, the program control source-excitation characteristic tester contactor 44 is arranged on one side of the program control source-self-boosting standard voltage transformer contactor 43, the error switching module 42 is arranged above the switching control module 41, and the switching control module 41 is arranged above the module power supply 45
The electrical measuring instrument 5 comprises a program control source 51 and a standard voltage transformer 52, the program control source is connected with the self-boosting standard voltage transformer contactor 43 and is in signal connection with the program control source 51, and the program control source 51 is in signal connection with the standard voltage transformer 52.
When the device is used, the tested voltage transformer is conveyed by the roller conveying line and positioned to the verification station, and then the device automatically enters an error test process. The error test is carried out by simultaneously boosting the voltage of 6 tested products to a regulation point (rated voltage 80%, rated voltage 100% and rated voltage 120%) and sequentially switching stations to carry out verification.
The transformer primary side wiring mechanism 2 and the transformer secondary side wiring mechanism 3 are started to carry out wiring of a primary terminal and a secondary terminal of a tested object, and the A end of the primary terminal of the 6 tested voltage transformers is connected with the high-voltage end of the self-boosting standard voltage transformer 52 in parallel through a transformer primary side X contact terminal 25.
After wiring is finished, the software sets the information of the transformation ratio, the accuracy, the secondary load and the like of the tested object.
The industrial computer sends the instruction to the master control calibrator, and the program control source moves to the contactor 43 of the self-boosting standard voltage transformer, so that the program control source 51 is controlled to output voltage to the input end of the self-boosting standard voltage transformer 52, and when the voltage of the high-voltage end of the self-boosting standard voltage transformer 52 rises to 80% of the rated voltage of the tested transformer, the voltage is maintained.
The check meter controls the switching control module 41 to output station instructions, and the error switching module 42 respectively accesses the secondary wiring terminals of 6 tested products into the test loop according to the station instructions to test and parameter test data.
The check meter analyzes and processes the test data and uploads the data to the industrial personal computer.
The industrial computer sends the instruction to the master control calibrator, and the program control source moves to the contactor 43 of the self-boosting standard voltage transformer, so that the program control source 51 is controlled to output voltage to the input end of the self-boosting standard voltage transformer 52, and when the voltage of the high-voltage end of the self-boosting standard voltage transformer 52 rises to 100% of the rated voltage of the tested transformer, the voltage is maintained.
The check meter controls the switching control module 41 to output station instructions, and the error switching module 42 respectively accesses the secondary wiring terminals of 6 tested products into the test loop according to the station instructions to test and parameter test data.
The check meter analyzes and processes the test data and uploads the data to the industrial personal computer.
The industrial computer sends the instruction to the master control calibrator, and the program control source moves to the contactor 43 of the self-boosting standard voltage transformer, so that the program control source 51 is controlled to output voltage to the input end of the self-boosting standard voltage transformer 52, and when the voltage of the high-voltage end of the self-boosting standard voltage transformer 52 rises to 120% of the rated voltage of the tested transformer, the voltage is maintained.
The check meter controls the switching control module 41 to output station instructions, and the error switching module 42 respectively accesses the secondary wiring terminals of 6 tested products into the test loop according to the station instructions to test and parameter test data.
The check meter analyzes and processes the test data and uploads the data to the industrial personal computer. The test was completed.
After the experiment is finished, the primary side wiring mechanism 2 and the secondary side wiring mechanism 3 of the mutual inductor automatically reset.
And when the tested voltage transformer error test is qualified, automatically entering an excitation characteristic test process.
And starting the wiring mechanisms 3 and 6 at the secondary sides of the transformers, wherein only the primary terminals of the tested voltage transformers are in an open circuit state.
After wiring is finished, the software sets the information of the transformation ratio, the accuracy, the secondary load and the like of the tested object.
The industrial personal computer sends an instruction to the excitation characteristic tester, the secondary wiring terminals of 6 tested products are respectively connected into an excitation characteristic test state through the internal switching module of the instrument, the excitation characteristic tester applies secondary rated power frequency voltage to the secondary winding, and the effective value Ic1 of the excitation current at the moment is measured.
Then, the secondarily applied voltage was raised to a secondary rated voltage of 2 times (1.5 times for 20 kV), and the effective value Ic2 of the exciting current thereof was measured.
And analyzing and processing test data by an excitation characteristic tester, uploading the data to an industrial personal computer, and judging that the excitation characteristic test of the station transformer is qualified if the ratio of the two currents is not more than 15 (i.e. Ic2/Ic1 is not more than 15), otherwise, judging that the station transformer is unqualified.
After the experiment is finished, the wiring mechanism automatically resets.
The invention has high integration efficiency and small occupied area. The device that this scheme provided can carry out error test, excitation characteristic test to high voltage transformer in proper order, collects both tests and an organic whole, and degree of automation is high. The automatic transfer, the automatic conveying, the automatic wire connecting and disconnecting, the automatic switching test and the automatic uploading of test data of the high-voltage transformer can be realized, the centralized management, the high reliability and the full automation are realized, and the hardware cost is low. In view of the fact that partial test lines of the voltage transformer error and excitation characteristic test can be used mutually, equipment and line multiplexing is improved to a large extent, hardware cost is reduced, manual participation is reduced, and the method is safer. The device provided by the invention can realize automatic circulation, automatic conveying, automatic wire connection and disconnection and automatic switching tests of the high-voltage transformer, does not need manual participation, avoids potential safety hazards possibly brought by the tests, and has high test data accuracy. The device provided by the invention adopts the flexible compression joint mechanism to realize the reliable contact between the test end and the tested object, and ensures the precision of test data.
Claims (8)
1. The utility model provides a full-automatic high-voltage transformer error and excitation characteristic testing arrangement, includes aluminum section frame (1), its characterized in that: a mutual inductor primary side wiring mechanism (2), a mutual inductor secondary side wiring mechanism (3) and an electrical measurement functional module (4) are arranged on the aluminum profile frame (1), and an electrical measurement instrument (5) is placed below the aluminum profile frame (1);
the transformer primary side wiring mechanism (2) comprises a guide rod cylinder I (21), a guide rod I (22), an insulator (23), a conductive copper bar (24), a transformer primary side X contact terminal (25) and a transformer primary side A contact terminal (26), wherein the transformer primary side X contact terminal (25) is connected with the conductive copper bar (24) through which the transformer primary side A contact terminal (26) passes, the insulator (23) is installed on the conductive copper bar (24), a support is installed on the top of the insulator (23), the guide rod I (22) is installed on the support, and the telescopic end of the guide rod cylinder I (21) is installed on the support;
the secondary side wiring mechanism (3) of the transformer comprises a guide rod cylinder II (31), a guide rod II (32) and a secondary side contact terminal (33) of the transformer;
the guide rod cylinder II (31) is installed on the installation seat, the telescopic end of the guide rod cylinder II (31) and the guide rod II (32) are both installed on the section bar support body, and the secondary side contact terminal (33) of the mutual inductor is installed above and below the section bar support body;
the electric measurement function module (4) comprises a switching control module (41), an error switching module (42), a contactor (43) from a program control source to a self-boosting standard voltage transformer, a contactor (44) from the program control source to an excitation characteristic tester and a module power supply (45), wherein the switching control module (41) is in signal connection with an inspection instrument, the switching control module (41) is in signal connection with the error switching module (42), the inspection instrument is in signal connection with an industrial personal computer, and the inspection instrument is in signal connection with the contactor (43) from the program control source to the self-boosting standard voltage transformer;
the electric measuring instrument (5) comprises a program control source (51) and a standard voltage transformer (52), the program control source is connected with a self-boosting standard voltage transformer contactor (43) through signals of the program control source (51), and the program control source (51) is connected with the standard voltage transformer (52) through signals.
2. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: and the guide rod cylinder I (21) is provided with a limiting plate, and the guide rod I (22) penetrates through the limiting plate and is movably connected with the limiting plate.
3. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: the number of the installation seats is three, the number of the second guide rods (32) is two, and the installation seats are respectively sleeved on the two second guide rods (32).
4. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: and a high-voltage cable insulating support (6) is arranged inside the aluminum profile frame (1).
5. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: the number of the module power supplies (45) is two.
6. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: the program control source-excitation characteristic tester contactor (44) is arranged on one side of the program control source-self-boosting standard voltage transformer contactor (43).
7. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: the error switching module (42) is arranged above the switching control module (41).
8. The full-automatic high-voltage transformer error and excitation characteristic testing device according to claim 1, characterized in that: the switching control module (41) is disposed above the module power supply (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940922.6A CN112051477A (en) | 2020-09-09 | 2020-09-09 | Full-automatic high-voltage transformer error and excitation characteristic testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940922.6A CN112051477A (en) | 2020-09-09 | 2020-09-09 | Full-automatic high-voltage transformer error and excitation characteristic testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112051477A true CN112051477A (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010940922.6A Pending CN112051477A (en) | 2020-09-09 | 2020-09-09 | Full-automatic high-voltage transformer error and excitation characteristic testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112051477A (en) |
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2020
- 2020-09-09 CN CN202010940922.6A patent/CN112051477A/en active Pending
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