CN202041606U - Frequency tripling transformer load test device - Google Patents
Frequency tripling transformer load test device Download PDFInfo
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- CN202041606U CN202041606U CN 201120144070 CN201120144070U CN202041606U CN 202041606 U CN202041606 U CN 202041606U CN 201120144070 CN201120144070 CN 201120144070 CN 201120144070 U CN201120144070 U CN 201120144070U CN 202041606 U CN202041606 U CN 202041606U
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- transformer
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- load test
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000002474 experimental method Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a frequency tripling transformer load test device which is mainly applied to test items after a transformer leaves the factory, is handed over, is overhauled or goes wrong, and is used for measuring short-circuit impedance and load loss, and providing important parameters for identifying the quality, the performance and the operation condition of the transformer and basic parameters for a temperature rise test of the transformer. The structure is that a frequency tripling power supply voltage is loaded on a tested transformer through a voltage regulator and an intermediate transformer; a compensator is connected in parallel behind the intermediate transformer; a voltmeter, an ammeter, a power meter and a frequency meter are connected to the primary side of the tested transformer; and the secondary side of the test transformer is short-circuited. Under the condition of frequency tripling power supply, a short-circuit test is performed to the tested transformer, and the obtained testing data is converted into a corresponding value under the power frequency voltage after being processed through data fitting, so that the test effect which is equal to that under the power frequency voltage can be achieved. The load test device requires small volume of a power supply, small volume of a compensation capacitor and small area of a testing field, is convenient in wiring and monitoring, and can met the 50%Ie test requirements.
Description
Technical field
The utility model relates to a kind of load test device, relates in particular to a kind of frequency tripling transformer load test unit, belongs to the electric power application, be applied to that power transformer dispatches from the factory, the load test device after handing-over, overhaul and the fault.
Background technology
According to the GB requirement, under the power frequency condition, carry out the transformer load test, test current should reach 50%～100%Ie.Because the on-the-spot needed high capacity power supply of satisfied test that is difficult to is about about 10% of test specimen rated capacity, the load test of electric company can only be 10%Ie and following carrying out at present.Even adopt capacitor shunt compensation mode, when the experiment power supply capacity reaches 100kVA, also can only carry out the 50%Ie load test of 66kV and following electric pressure transformer, but required compensation condenser capacity is very big, about 50 μ F, generally need about weight 50kg, tens in the capacitor of electric capacity 8 μ F, jumbo in addition pressure regulator and intermediate transformer, difficulty such as cause that transportation, carrying, wiring and scene are put, and the measurements and calculations error is also very big.
How can be under less power supply capacity conditions, it is convenient, fast and accurate that to carry out the transformer load test be the current engineering technology problem that needs to be resolved hurrily.
Summary of the invention
The utility model patent is at the problems referred to above, proposition utilizes 3 frequency multiplication generators as experiment power supply, by the low capacity compensator, realize that electric current reaches the transformer load test unit of 50% Ie, solved in the prior art and can't under the small power supply capacity conditions, carry out the problem of transformer load test.
The technical solution of the utility model is as follows:
3 frequency multiplication generators are as experiment power supply, 3 frequency multiplication generators are loaded on the tested transformer by pressure regulator, intermediate transformer, compensator is connected in parallel between intermediate transformer and the tested transformer, voltage table, reometer, power meter, frequency meter all are connected the former limit of tested transformer, and tested transformer is paid the limit short circuit.
Be parallel with control box between described 3 frequency multiplication generators and the pressure regulator.
Described pressure regulator is any in electric voltage regulator or the manual voltage regulator.
Described compensator is inductor or capacitor.
The utility model has the advantages of as follows:
1, adopt 3 frequency multiplication generators as experiment power supply, rig-site utilization is strong, test current can reach 50%Ie and more than.
2, compensation capacity is about 1/9,100 experiment power supply capacity of compensation capacity under the power frequency condition; All reduce greatly compensator volume, weight and required test site etc.
3, test connection facility, the working site is easy to safety custody, saves human and material resources.
4, test current significantly improves, and test figure is accurate, and test findings has more using value.
5, by the utility model under the small power supply capacity conditions, can carry out transformer load test, measure the short-circuit impedance and the load loss of transformer, provide important parameter for identifying transformer quality, performance service condition and temperature rise test.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is a wiring diagram of the present utility model.
Among the figure, T1-frequency tripling generator; The T2-pressure regulator; The T3-intermediate transformer; The tested transformer of T4-; Hz-hertz table; The A-reometer; The W-power meter; The V-voltage table; 1, control box, 2, compensator.
Embodiment
Below in conjunction with accompanying drawing, in conjunction with specific embodiments, the utility model is described in detail as follows.
Embodiment 1
3 frequency multiplication generators are parallel with control box as experiment power supply between 3 frequency multiplication generators and the pressure regulator; 3 frequency multiplication generators are loaded on the tested transformer by electric voltage regulator, intermediate transformer, capacitive compensator is connected in parallel between intermediate transformer and the tested transformer, voltage table, reometer, power meter, frequency meter are connected the former limit of tested transformer, and tested transformer is paid the limit short circuit.
Embodiment 2
Described pressure regulator is a manual voltage regulator, and compensator is the inductance compensation device, and other structure is with embodiment 1.
Technical indicator of the present utility model is as follows:
1,3 frequencys multiplication generator-capacity 100kVA, frequency 150Hz, voltage 380kV;
2, capacitive compensator-many taps electric capacity;
3, inductance compensation device-many taps inductance;
4,50%～100%Ie of test current-test specimen rated current;
5, environment temperature--5～30
0C;
6, ambient humidity-50%-80%.
Principle of work of the present utility model and process are as follows:
Utilize 3 frequency multiplication generators to obtain the single-phase experiment power supply of 150Hz, tested transformer is inserted in the test circuit, select inductance or electric capacity as reactive-load compensator, tested transformer is paid the limit short circuit, as shown in Figure 2, measure original edge voltage, electric current, power, frequency, obtain short-circuit impedance and load loss data, carry out corrected Calculation such as electric current, temperature, frequency again, obtain short-circuit impedance and load loss value under the power frequency condition.
Claims (4)
1. frequency tripling transformer load test unit, it is characterized in that 3 frequency multiplication generators are as experiment power supply, 3 frequency multiplication generators are loaded on the tested transformer by pressure regulator, intermediate transformer, compensator is connected in parallel between intermediate transformer and the tested transformer, voltage table, reometer, power meter, frequency meter all are connected the former limit of tested transformer, and tested transformer is paid the limit short circuit.
2. frequency tripling transformer load test unit according to claim 1 is characterized in that being parallel with control box between described 3 frequency multiplication generators and the pressure regulator.
3. frequency tripling transformer load test unit according to claim 1 is characterized in that described pressure regulator is any in electric voltage regulator or the manual voltage regulator.
4. frequency tripling transformer load test unit according to claim 1 is characterized in that described compensator is inductor or capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120144070 CN202041606U (en) | 2011-05-09 | 2011-05-09 | Frequency tripling transformer load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120144070 CN202041606U (en) | 2011-05-09 | 2011-05-09 | Frequency tripling transformer load test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041606U true CN202041606U (en) | 2011-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120144070 Expired - Fee Related CN202041606U (en) | 2011-05-09 | 2011-05-09 | Frequency tripling transformer load test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041606U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269786A (en) * | 2011-05-09 | 2011-12-07 | 辽宁省电力有限公司抚顺供电公司 | Load testing device for triple-frequency transformer |
| CN102590673A (en) * | 2012-02-24 | 2012-07-18 | 辽宁省电力有限公司抚顺供电公司 | Parameter tester for transmission line |
| CN105044479A (en) * | 2015-01-30 | 2015-11-11 | 国网河南省电力公司电力科学研究院 | Apparatus for large-scale oil-immersed transformer no-load and on-load comprehensive tests and method |
| CN106124923A (en) * | 2016-06-17 | 2016-11-16 | 山东达驰电气有限公司 | A kind of three-phase transformer turn-to-turn fault detection circuit and detection method |
| CN110018387A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | It is a kind of to carry experimental rig and test method entirely |
-
2011
- 2011-05-09 CN CN 201120144070 patent/CN202041606U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269786A (en) * | 2011-05-09 | 2011-12-07 | 辽宁省电力有限公司抚顺供电公司 | Load testing device for triple-frequency transformer |
| CN102269786B (en) * | 2011-05-09 | 2014-02-19 | 辽宁省电力有限公司抚顺供电公司 | Load testing device for triple-frequency transformer |
| CN102590673A (en) * | 2012-02-24 | 2012-07-18 | 辽宁省电力有限公司抚顺供电公司 | Parameter tester for transmission line |
| CN105044479A (en) * | 2015-01-30 | 2015-11-11 | 国网河南省电力公司电力科学研究院 | Apparatus for large-scale oil-immersed transformer no-load and on-load comprehensive tests and method |
| CN106124923A (en) * | 2016-06-17 | 2016-11-16 | 山东达驰电气有限公司 | A kind of three-phase transformer turn-to-turn fault detection circuit and detection method |
| CN110018387A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | It is a kind of to carry experimental rig and test method entirely |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20120919 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120919 Address after: 113008 West Xinfu Road, Liaoning, Fushun, No. 13 Patentee after: Fushun Power Supply Company of Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 113008 West Xinfu Road, Liaoning, Fushun, No. 13 Patentee before: Fushun Power Supply Company of Liaoning Electric Power Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20180509 |