CN203720282U - Transformer comprehensive parameter testing device - Google Patents
Transformer comprehensive parameter testing device Download PDFInfo
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- CN203720282U CN203720282U CN201420011808.5U CN201420011808U CN203720282U CN 203720282 U CN203720282 U CN 203720282U CN 201420011808 U CN201420011808 U CN 201420011808U CN 203720282 U CN203720282 U CN 203720282U
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Abstract
The utility model discloses a transformer comprehensive parameter testing device. The transformer comprehensive parameter testing device comprises a program controlled single-phase variable-frequency power source, an isolation transformer, a voltage transformer, a voltage, current and power measuring plate, a main control unit, a memory and an on-line interface; the output end of the program controlled single-phase variable-frequency power source is electrically connected with the input end of the isolation transformer; a wire end of the output end of the isolation transformer is connected in series with a current transformer; two input ends of the voltage transformer are respectively connected in parallel with a neural line of the output end of the isolation transformer and the wire end of the output end of the isolation transformer; the voltage, current and power measuring plate is used for measuring current transformer data and voltage transformer data; the main control unit is used for receiving and analyzing data measured by the voltage, current and power measuring plate and is connected with the program controlled single-phase variable-frequency power source; the memory is used for storing the data of the main control unit and is in control connection with the main control unit; and the on-line interface is used for connecting a high voltage divider. The transformer comprehensive parameter testing device of the utility model can be used for testing each characteristic of the voltage transformer, and can be also used for testing each characteristic of the transformer. The transformer comprehensive parameter testing device is advantageous in convenient operation and high test precision.
Description
Technical field
The utility model relates to a kind of transformer synthesis parameter test device.
Background technology
Voltage transformer (VT) (PT) is the key equipment in electric system, insulation defect, and as circle, layer short circuit, the phenomenons such as support electric discharge and iron core punching screw suspended discharge can have a strong impact on the normal operation of equipment, and very dangerous explosion phenomenon even can occur.PT is carried out to induced over voltage withstand test and can help staff to pinpoint the problems in time, avoid causing more serious consequence.
Transformer is also the key equipment in electric system, short-circuit impedance, volume test, open circuit loss, load loss is all the customary pressure testing of transformer, can verify that whether manufacturing and designing of transformer meets specification, can test the efficiency of transformer in operational process on the other hand on the one hand.
But also there is no at present a kind of device that not only can complete voltage transformer (VT) feature measurement but also can complete transformer characteristic test.
Utility model content
Technical problem to be solved in the utility model is for shortcomings and deficiencies of the prior art, provides a kind of and not only can complete voltage transformer (VT) feature measurement but also can complete the transformer synthesis parameter test device that transformer characteristic is tested, to address the above problem.
The technical matters that the utility model solves can realize by the following technical solutions:
Transformer synthesis parameter test device, is characterized in that, comprising:
The single-phase variable-frequency power sources of one program control type;
One isolating transformer, the output terminal of the single-phase variable-frequency power sources of described program control type is electrically connected with the input end of described isolating transformer, on the line end of the output terminal of described isolating transformer, is serially connected with current transformer;
Two input ends are attempted by respectively the voltage transformer (VT) on the neutral line and the line end of output terminal of described isolating transformer;
One for measuring voltage/current/power measurement plate of described current transformer data and described voltage transformer (VT) data;
One for receiving and analyze the main control unit of the measured data of described voltage/current/power measurement plate, the single-phase variable-frequency power sources control linkage of described main control unit and described program control type;
One for storing the data of described main control unit and the storer with described main control unit control linkage;
One on-line interface for being connected with high-voltage bleeder.
In a preferred embodiment of the present utility model, described main control unit also with liquid crystal display control linkage.
In a preferred embodiment of the present utility model, described main control unit also with mini-printer control linkage.
In a preferred embodiment of the present utility model, described main control unit also with operation push-button control linkage.
Owing to having adopted technical scheme as above, the utility model can be tested voltage transformer (VT) characteristic, also can test transformer characteristic.Characteristic test for voltage transformer (VT) can be carried out: induced over voltage withstand test, volt-ampere characteristic test, no-load current test.Characteristic test for transformer can be carried out: induced over voltage withstand test, and short-circuit impedance test, load loss test, open circuit loss is tested, and tests out the correlation properties parameter of transformer.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is fundamental diagram of the present utility model.
Fig. 2 is the structural representation of guidance panel of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Figure 1, transformer synthesis parameter test device comprises the single-phase variable-frequency power sources 100 of program control type, isolating transformer 200, voltage transformer (VT) 400, current transformer 300, main control unit 500, voltage/current/power measurement plate 600, the out-put supply frequency of the single-phase variable-frequency power sources 100 of program control type is 40Hz～200Hz, and adjusting fineness is 0.1Hz; The output supply voltage of the single-phase variable-frequency power sources 100 of program control type is 0～800V, and adjusting fineness is 0.1V.
The output terminal of the single-phase variable-frequency power sources 100 of program control type is electrically connected with the input end of isolating transformer 200, and current transformer 300 is serially connected on the line end 201 of output terminal of isolating transformer 200.And two input ends of voltage transformer (VT) 400 are attempted by respectively on the neutral line 202 and line end 201 of output terminal of isolating transformer 200.
Two measuring junctions of voltage/current/power measurement plate 600 are electrically connected with the secondary side of current transformer 300, voltage transformer (VT) 400 respectively, and send the data such as voltage/current/power that current transformer 300, voltage transformer (VT) 400 are measured to main control unit 500 and carry out analyzing and processing.
And main control unit 500 and single-phase variable-frequency power sources 100 control linkages of program control type, and main control unit 500 also with liquid crystal display 510, mini-printer 520, operation push-button 530, storer 700 control linkages, storer 700, for storing the data such as voltage/current/power that current transformer 300, voltage transformer (VT) 400 are measured, can be stored at most 40 groups of data; Can operate main control unit 500 by operation push-button 530, also can change output frequency or the output voltage of the single-phase variable-frequency power sources 100 of program control type; The data that main control unit 500 receives show by liquid crystal display 510, and handled easily personnel check; And can test result be printed by mini-printer 520.In the time that needs carry out induced over voltage withstand test, can also be connected with high-voltage bleeder by on-line interface 800 of the present utility model, directly monitor on high-tension side trial voltage with voltage divider, can ensure the accuracy of output voltage, avoid the injury of overvoltage to test specimen.
Principle of work of the present utility model is as follows:
The utlity model has two kinds of mode of operations manually or automatically, frequency and the amplitude of the single-phase variable-frequency power sources 100 of program control type are controlled by serial line interface by main control unit 500.Voltage/current/power measurement plate 600 has used real time high-speed Sampling techniques under the control of main control unit 500, the data such as voltage/current/power that current transformer 300, voltage transformer (VT) 400 are measured gather, calculate, and measurement result is sent to main control unit 500.Main control unit 500 does the signal of exporting through current transformer 300, voltage transformer (VT) 400 synchronized sampling complete cycle of real time high-speed, by the data storing of sampling in storer 800.
Shown in Fig. 2, on the guidance panel 900 of transformer synthesis parameter test device, be provided with multiple operating key and interface, allow stop key 951, voltage-regulation knob 960, ground terminal 970, total power switch 980 and the on-line interface 800 for being connected with high-voltage bleeder comprising display window 910, RS232 interface 920, USB interface 921, the upper and lower, left and right directionkeys 931 of determining key 930, control cursor movement, mini-printer exit slot 940, output permission start key 950, output.
Show current operation, prompting and data by display window 910; Realize the software upgrading of main control unit 500 and be connected with PC control by RS232 interface 920; By USB interface 921 test data everywhere; Measure by determining that key 930 can be determined set data or start; Test data can be printed by mini-printer exit slot 940; Allow start key 950 can under the prompting of the menu of display window 910, press this switch by output, allow stop key 951 to press measuring while finishing by output, allow stop key 951 if also can press output in measuring while noting abnormalities; Can manual adjustments voltage by voltage-regulation knob 960; Can reach ground connection object by ground terminal 970, ensure operator's safety; Can control connecting and disconnecting of the circuit of the present utility model by total power switch 980, in case of emergency can close total power switch 980.
The utility model can be tested voltage transformer (VT) characteristic, also can test transformer characteristic.Characteristic test for voltage transformer (VT) can be carried out: induced over voltage withstand test, volt-ampere characteristic test, no-load current test.Characteristic test for transformer can be carried out: induced over voltage withstand test, and short-circuit impedance test, volumetric analysis test, load loss test, open circuit loss is tested, and tests out the correlation properties parameter of transformer.
When voltage transformer (VT) is carried out to induced over voltage withstand test: enter after the operation pages of display window 910, multiple operating key by guidance panel 900 is selected transformer test pattern, and then selection manual operation mode or automatic operation mode, the voltage up-down of manual operation mode is regulated by voltage-regulation knob 960, following operator scheme is all taking automatic operation mode as example, then enter parameter interface is set, to the voltage of induced over voltage withstand test, frequency, time, overpressure value, the parameters such as overcurrent value arrange, after various parameters have all arranged, can enter induced over voltage withstand test, single-phase variable-frequency power sources 100 automatic boostings of program control type start countdown after setting value, in countdown process, pressing any key can abort, countdown finishes rear beginning automatic boosting process, in the process of testing and boost, detect and whether exceed overpressure value and overcurrent value, automatically stop if exceeding measuring, easy to operate, test accuracy is high.Also can the utility model be connected with high-voltage bleeder by on-line interface 800, directly monitor on high-tension side trial voltage with voltage divider, can ensure the accuracy of output voltage, avoid the injury of overvoltage to test specimen.
When voltage transformer (VT) is carried out to volt-ampere characteristic test: enter after the operation pages of display window 910, select volt-ampere characteristic test pattern, then enter parameter interface is set, overpressure value and the overcurrent value of various sampling spots is set.After various parameters have all arranged, can enter volt-ampere characteristic test, the single-phase variable-frequency power sources 100 of program control type is boosted according to predefined number of sampling automatically.In the process of testing and boost, detect whether exceed overpressure value and overcurrent value, automatically stop if exceeding measuring.When rising to maximum voltage set-point, single-phase variable-frequency power sources 100 step-downs of program control type, experiment finishes, easy to operate, and test accuracy is high.
When voltage transformer (VT) is carried out to no-load current test: enter after the operation pages of display window 910, select no-load current test model, then enter parameter interface is set, overpressure value and the overcurrent value of various sampling spots is set.After various parameters have all arranged, can enter no-load current test, the single-phase variable-frequency power sources 100 of program control type is boosted according to predefined number of sampling automatically.In sampling spot record current value, in the process of testing and boost, detect whether exceed overpressure value and overcurrent value, automatically stop if exceeding measuring.When rising to maximum voltage set-point, single-phase variable-frequency power sources 100 step-downs of program control type, experiment finishes, easy to operate, and test accuracy is high.
When transformer is carried out to induced over voltage withstand test: induced over voltage withstand test must be carried out under rated frequency (sinusoidal waveform) and rated voltage, make a winding reach rated excitation, remaining winding open circuit.After each connection is completed, enter after the operation pages of display window 910, multiple operating key by guidance panel 900 is selected transformer testing pattern, and then selection manual operation mode or automatic operation mode, the voltage up-down of manual operation mode is regulated by voltage-regulation knob 960, below operator scheme all taking automatic operation mode as example.Then enter parameter interface is set, various parameters are set, as trial voltage, test frequency, test period, overpressure value, overcurrent value, the mode of connection, no-load voltage ratio etc.After various parameters have all arranged, can enter induced over voltage withstand test, display window 910 first shows the countdown of boosting, after the countdown time arrives, the method that the utility model utilizes the single-phase variable-frequency power sources 100 of program control type to simulate program control type three phase frequency changing power is tested, without manual control, be raised to after rated voltage locking measurement result, if do not reach rated voltage, just be raised to the maximum voltage that the utility model can reach, conversion measurement result, is designated as " AB " phase data.The single-phase variable-frequency power sources 100 of program control type enters step-down process.Voltage is down to and is repeated said process after 0V and test, and the test figure obtaining is designated as " BC " phase data.So analogize, complete " AB phase ", " BC phase ", after the measurement of " CA phase " three-phase, off-test, produces measurement result, easy to operate, and test accuracy is high.In order to make the utility model possess intellectualized operation, in process of the test, length is pressed acknowledgement key 930, closes output and allows start key 950, can abort.
When transformer is carried out to short-circuit impedance test: test must be carried out under rated frequency (sinusoidal waveform).After transformer and connection of the present utility model are completed, enter after the operation pages of display window 910, then enter parameter interface is set, various parameters are set, as test current, rated voltage, rated capacity, rated temperature, current oil content, impedance voltage and the mode of connection etc.After various parameters have all arranged, can enter short-circuit impedance test, enter after the test mode of test, display window 910 first shows the countdown of boosting, after the countdown time arrives, the method that the utility model utilizes the single-phase variable-frequency power sources 100 of program control type to simulate program control type three phase frequency changing power is tested, without manual control, be raised to after rated current, locking measurement result, if do not reach rated current, is just raised to the maximum current that the utility model can reach, conversion measurement result, is designated as " AB " phase data.The single-phase variable-frequency power sources 100 of program control type enters step-down process.Voltage is down to and is repeated said process after 0V and test, and the test figure obtaining is designated as " BC " phase data.So analogize, complete " AB phase ", " BC phase ", after the measurement of " CA phase " three-phase, off-test, produces measurement result, easy to operate, and test accuracy is high.
When transformer is carried out to open circuit loss test: open circuit loss test must be carried out under rated frequency (sinusoidal waveform) and rated voltage, makes a winding reach rated excitation, remaining winding open circuit.After each connection is completed, enter after the operation pages of display window 910, then enter parameter interface is set, various parameters are set, as test current, rated voltage, rated temperature, current oil content, impedance voltage and the mode of connection etc.After various parameters have all arranged, can enter open circuit loss test, enter after the test mode of test, display window 910 first shows the countdown of boosting, after the countdown time arrives, the method that the utility model utilizes the single-phase variable-frequency power sources 100 of program control type to simulate program control type three phase frequency changing power is tested, without manual control, be raised to after rated voltage, locking measurement result, if do not reach rated voltage, is just raised to the maximum voltage that the utility model can reach, conversion measurement result, is designated as " AB " phase data.The single-phase variable-frequency power sources 100 of program control type enters step-down process.Voltage is down to and is repeated said process after 0V and test, and the test figure obtaining is designated as " BC " phase data.So analogize, complete " AB phase ", " BC phase ", after the measurement of " CA phase " three-phase, off-test, produces measurement result, easy to operate, and test accuracy is high.
When transformer is carried out to load loss test: load loss test must be carried out under rated frequency (sinusoidal waveform) and rated current.After each connection is completed, enter after the operation pages of display window 910, then enter parameter interface is set, various parameters are set, as test current, rated voltage, rated temperature, current oil content, impedance voltage and the mode of connection etc.After various parameters have all arranged, can enter load loss test, enter after the test mode of test, display window 910 first shows the countdown of boosting, after the countdown time arrives, the method that the utility model utilizes the single-phase variable-frequency power sources 100 of program control type to simulate program control type three phase frequency changing power is tested, without manual control, be raised to after rated voltage, locking measurement result, if do not reach rated voltage, is just raised to the maximum voltage that the utility model can reach, conversion measurement result, is designated as " AB " phase data.The single-phase variable-frequency power sources 100 of program control type enters step-down process.Voltage is down to and is repeated said process after 0V and test, and the test figure obtaining is designated as " BC " phase data.So analogize, complete " AB phase ", " BC phase ", after the measurement of " CA phase " three-phase, off-test, produces measurement result, easy to operate, and test accuracy is high.
The test findings of above-mentioned each test can also print by mini-printer 500, and stores data in storer 700, conveniently consults and stores.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. transformer synthesis parameter test device, is characterized in that, comprising:
The single-phase variable-frequency power sources of one program control type;
One isolating transformer, the output terminal of the single-phase variable-frequency power sources of described program control type is electrically connected with the input end of described isolating transformer, on the line end of the output terminal of described isolating transformer, is serially connected with current transformer;
Two input ends are attempted by respectively the voltage transformer (VT) on the neutral line and the line end of output terminal of described isolating transformer;
One for measuring voltage/current/power measurement plate of described current transformer data and described voltage transformer (VT) data;
One for receiving and analyze the main control unit of the measured data of described voltage/current/power measurement plate, the single-phase variable-frequency power sources control linkage of described main control unit and described program control type;
One for storing the data of described main control unit and the storer with described main control unit control linkage;
One on-line interface for being connected with high-voltage bleeder.
2. transformer synthesis parameter test device as claimed in claim 1, is characterized in that, described main control unit also with liquid crystal display control linkage.
3. transformer synthesis parameter test device as claimed in claim 1, is characterized in that, described main control unit also with mini-printer control linkage.
4. transformer synthesis parameter test device as claimed in claim 1, is characterized in that, described main control unit also with operation push-button control linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011808.5U CN203720282U (en) | 2014-01-09 | 2014-01-09 | Transformer comprehensive parameter testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011808.5U CN203720282U (en) | 2014-01-09 | 2014-01-09 | Transformer comprehensive parameter testing device |
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| Publication Number | Publication Date |
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| CN203720282U true CN203720282U (en) | 2014-07-16 |
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| CN201420011808.5U Expired - Fee Related CN203720282U (en) | 2014-01-09 | 2014-01-09 | Transformer comprehensive parameter testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749504A (en) * | 2015-03-30 | 2015-07-01 | 西南交通大学 | Experiment method of dielectric response of frequency domain of traction transformer under loading condition |
| CN107024631A (en) * | 2017-05-27 | 2017-08-08 | 国网上海市电力公司 | With the volt-ampere characteristic test method of Multifunctional coil kind equipment testing synthesis parameter device |
| CN107064694A (en) * | 2017-05-27 | 2017-08-18 | 国网上海市电力公司 | No-load test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107167683A (en) * | 2017-05-27 | 2017-09-15 | 国网上海市电力公司 | Load test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107167710A (en) * | 2017-05-27 | 2017-09-15 | 国网上海市电力公司 | Pressure test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107422201A (en) * | 2017-05-27 | 2017-12-01 | 国网上海市电力公司 | A kind of Multifunctional coil kind equipment testing synthesis parameter device |
| CN111175597A (en) * | 2019-12-09 | 2020-05-19 | 中船重工(重庆)西南装备研究院有限公司 | Multifunctional transformer comprehensive experiment system and method |
-
2014
- 2014-01-09 CN CN201420011808.5U patent/CN203720282U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749504A (en) * | 2015-03-30 | 2015-07-01 | 西南交通大学 | Experiment method of dielectric response of frequency domain of traction transformer under loading condition |
| CN104749504B (en) * | 2015-03-30 | 2017-07-11 | 西南交通大学 | The experimental method of tractive transformer frequency domain dielectric response under loading condition |
| CN107024631A (en) * | 2017-05-27 | 2017-08-08 | 国网上海市电力公司 | With the volt-ampere characteristic test method of Multifunctional coil kind equipment testing synthesis parameter device |
| CN107064694A (en) * | 2017-05-27 | 2017-08-18 | 国网上海市电力公司 | No-load test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107167683A (en) * | 2017-05-27 | 2017-09-15 | 国网上海市电力公司 | Load test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107167710A (en) * | 2017-05-27 | 2017-09-15 | 国网上海市电力公司 | Pressure test method based on Multifunctional coil kind equipment testing synthesis parameter device |
| CN107422201A (en) * | 2017-05-27 | 2017-12-01 | 国网上海市电力公司 | A kind of Multifunctional coil kind equipment testing synthesis parameter device |
| CN111175597A (en) * | 2019-12-09 | 2020-05-19 | 中船重工(重庆)西南装备研究院有限公司 | Multifunctional transformer comprehensive experiment system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160109 |