CN203178403U - A transformer medium spectrum testing apparatus - Google Patents
A transformer medium spectrum testing apparatus Download PDFInfo
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- CN203178403U CN203178403U CN 201320145015 CN201320145015U CN203178403U CN 203178403 U CN203178403 U CN 203178403U CN 201320145015 CN201320145015 CN 201320145015 CN 201320145015 U CN201320145015 U CN 201320145015U CN 203178403 U CN203178403 U CN 203178403U
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- transformer
- pressure winding
- winding
- connecting circuit
- proving installation
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Abstract
The utility model relates to a transformer medium spectrum testing apparatus. The testing apparatus comprises a tester, a grounding circuit, and a connecting circuit. One end of the grounding circuit is connected with the tester, while the other end of the grounding circuit is connected with ground. The connecting circuit is equipped with two branches. The two branches are connected with a low-voltage winding and a high-voltage winding which are disposed in a double-winding transformer, respectively. Compared with a product in the prior art, the transformer medium spectrum testing apparatus with simple structure and easy use can be used as a beneficial supplement of an onsite transformer fault diagnosis method and refines frequency domain spectrum test data in order to form knowledge rules. Therefore, the aging and damping states of the transformer can be acquired reliably and rapidly and interference of external factors is eliminated.
Description
Technical field
The utility model relates to the metering circuit structure, especially relates to a kind of transformer medium spectrum proving installation.
Background technology
For field apparatus, through leaving standstill fully, measure when making temperature stabilization and oilpaper moisture reach balance after being preferably in it and stopping transport.Yet the power equipment variation of ambient temperature that puts into operation in the scene is quite complicated, round the clock, season, weather and load etc. change and all can make apparatus insulated temperature change, are difficult to reach oilpaper water balance state.Temperature all might change when measuring beginning and end when once measuring together, thereby brings difficulty to analysis.
Because the measurement of FDS is to be carried out to low frequency by high frequency, reduction along with frequency, measuring the exponent function relation of needed time of data point increases, most data point all is to finish in the initial time of experiment, so when temperature changes in the measuring process, should choose the temperature when measuring beginning.In addition, the oil temperature of transformer each several part distributes and is inhomogeneous, and normally head temperature is higher, and bottom temp is lower, will consider comprehensive effect in the actual measurement.
The utility model content
The purpose of this utility model is exactly to provide a kind of transformer medium simple in structure, easy to use spectrum proving installation for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of transformer medium spectrum proving installation, comprise tester, grounding circuit and connecting circuit, described grounding circuit one end is connected other end ground connection with tester, described connecting circuit is provided with two branches, is connected with the low pressure winding and the high pressure winding that arrange in the two-winding transformer respectively.
Be provided with reometer, voltage table and power supply in the described tester, connect with reometer after described voltage table and the power supply parallel connection, voltage table is drawn described connecting circuit with the two ends in parallel of power supply, and this connecting circuit is connected with the low pressure winding and the high pressure winding that arrange in the two-winding transformer respectively.
Be provided with reometer, voltage table and power supply in the described tester, connect with reometer after described voltage table and the power supply parallel connection, described reometer one end is drawn the low pressure winding that arranges in connecting circuit and the two-winding transformer and is connected, and described voltage table and power supply parallel connected end are drawn the high pressure winding that arranges in connecting circuit and the two-winding transformer and be connected.
Described connecting circuit is provided with sleeve pipe, and this sleeve pipe is the condenser-type terminal of paper oil insulation.
Described two-winding transformer connects to form described iron core grounding by high pressure winding, low pressure winding and the iron core of series connection successively.
Be equipped with electric capacity between described high pressure winding, low pressure winding and the iron core, the arranged outside of described high pressure winding has electric capacity.
Compared with prior art, the utility model is simple in structure, easy to use, can be used as the useful of on-the-spot transformer fault diagnosis method replenishes, from the frequency domain spectra test figure, refined and formed knowledge rule, then can obtain the aging or situation of making moist of transformer reliably, rapidly, get rid of the interference of extraneous factor.
Description of drawings
Fig. 1 is structural representation of the present utility model among the embodiment 1;
Fig. 2 is structural representation of the present utility model among the embodiment 2.
Among the figure, 1 is that grounding circuit, 2 is iron core for low pressure winding, 7 for high pressure winding, 6 for the condenser-type terminal of paper oil insulation, 5 for connecting circuit, 4 for tester, 3.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment 1
A kind of transformer medium spectrum proving installation, its structure comprises tester 2, grounding circuit 1 and connecting circuit 3 as shown in Figure 1, one end of grounding circuit 1 is connected with tester 2, other end ground connection, connecting circuit 3 are provided with two branches, are arranged with the condenser-type terminal 4 of paper oil insulation in connecting circuit.
Be provided with reometer, voltage table and power supply in the tester 2 that present embodiment uses, connect with reometer after voltage table and the power supply parallel connection, voltage table is drawn connecting circuit 3 with the two ends in parallel of power supply, and this connecting circuit 3 is connected with the low pressure winding 6 and the high pressure winding 5 that arrange in the two-winding transformer respectively.Two-winding transformer is connected to form by high pressure winding 5, low pressure winding 6 and the iron core 7 of series connection successively, iron core 7 ground connection wherein, between high pressure winding 5, low pressure winding 6 and iron core 7 and the outside of high pressure winding 5 be equipped with electric capacity.
A kind of transformer medium spectrum proving installation, its structure comprises tester 2, grounding circuit 1 and connecting circuit 3 as shown in Figure 2, one end of grounding circuit 1 is connected with tester 2, other end ground connection, connecting circuit 3 are provided with two branches, are arranged with the condenser-type terminal 4 of paper oil insulation in connecting circuit.
Be provided with reometer, voltage table and power supply in the tester 2 that present embodiment uses, connect with reometer after voltage table and the power supply parallel connection, reometer one end is drawn the low pressure winding 6 that arranges in connecting circuit 3 and the two-winding transformer and is connected, and voltage table and power supply parallel connected end are drawn the high pressure winding 5 that arranges in connecting circuit 3 and the two-winding transformer and be connected.Two-winding transformer is connected to form by high pressure winding 5, low pressure winding 6 and the iron core 7 of series connection successively, iron core 7 ground connection wherein, between high pressure winding 5, low pressure winding 6 and iron core 7 and the outside of high pressure winding 5 be equipped with electric capacity.
Claims (7)
1. a transformer medium is composed proving installation, it is characterized in that, this proving installation comprises tester, grounding circuit and connecting circuit, described grounding circuit one end is connected with tester, other end ground connection, described connecting circuit is provided with two branches, is connected with the low pressure winding and the high pressure winding that arrange in the two-winding transformer respectively.
2. a kind of transformer medium according to claim 1 is composed proving installation, it is characterized in that, be provided with reometer, voltage table and power supply in the described tester, connect with reometer after described voltage table and the power supply parallel connection, voltage table is drawn described connecting circuit with the two ends in parallel of power supply, and this connecting circuit is connected with the low pressure winding and the high pressure winding that arrange in the two-winding transformer respectively.
3. a kind of transformer medium according to claim 1 is composed proving installation, it is characterized in that, be provided with reometer, voltage table and power supply in the described tester, connect with reometer after described voltage table and the power supply parallel connection, described reometer one end is drawn the low pressure winding that arranges in connecting circuit and the two-winding transformer and is connected, and described voltage table and power supply parallel connected end are drawn the high pressure winding that arranges in connecting circuit and the two-winding transformer and be connected.
4. according to each described transformer medium spectrum proving installation among the claim 1-3, it is characterized in that described connecting circuit is provided with sleeve pipe.
5. a kind of transformer medium spectrum proving installation according to claim 4 is characterized in that described sleeve pipe is the condenser-type terminal of paper oil insulation.
6. according to each described transformer medium spectrum proving installation among the claim 1-3, it is characterized in that described two-winding transformer connects to form described iron core grounding by high pressure winding, low pressure winding and the iron core of series connection successively.
7. according to each described transformer medium spectrum proving installation in the claim 6, it is characterized in that be equipped with electric capacity between described high pressure winding, low pressure winding and the iron core, the arranged outside of described high pressure winding has electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145015 CN203178403U (en) | 2013-03-27 | 2013-03-27 | A transformer medium spectrum testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145015 CN203178403U (en) | 2013-03-27 | 2013-03-27 | A transformer medium spectrum testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178403U true CN203178403U (en) | 2013-09-04 |
Family
ID=49075081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145015 Expired - Lifetime CN203178403U (en) | 2013-03-27 | 2013-03-27 | A transformer medium spectrum testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991536A (en) * | 2017-11-03 | 2018-05-04 | 国家电网公司 | A kind of temperature correction method and equipment of the test of frequency domain dielectric response |
| CN108593714A (en) * | 2018-04-12 | 2018-09-28 | 西安交通大学 | Line measuring system for moisture content in a kind of transformer based on transformer built-in paper oil insulation sample effect of electromagnetic field |
-
2013
- 2013-03-27 CN CN 201320145015 patent/CN203178403U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991536A (en) * | 2017-11-03 | 2018-05-04 | 国家电网公司 | A kind of temperature correction method and equipment of the test of frequency domain dielectric response |
| CN107991536B (en) * | 2017-11-03 | 2023-06-13 | 国家电网公司 | Temperature correction method and equipment for frequency domain dielectric response test |
| CN108593714A (en) * | 2018-04-12 | 2018-09-28 | 西安交通大学 | Line measuring system for moisture content in a kind of transformer based on transformer built-in paper oil insulation sample effect of electromagnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |