CN203574564U - On-line energy taking system of high voltage series voltage compensation device - Google Patents
On-line energy taking system of high voltage series voltage compensation device Download PDFInfo
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- CN203574564U CN203574564U CN201320747020.6U CN201320747020U CN203574564U CN 203574564 U CN203574564 U CN 203574564U CN 201320747020 U CN201320747020 U CN 201320747020U CN 203574564 U CN203574564 U CN 203574564U
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- 239000003990 capacitor Substances 0.000 claims abstract description 57
- 238000004804 winding Methods 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to an on-line energy taking system of a high voltage series voltage compensation device. The on-line energy taking two output terminal system is characterized in that the system comprises a coupling capacitor and a potential transformer (PT), two input terminals of the coupling capacitor are respectively connected with a high voltage terminal of a high voltage electrical network and the ground, two output terminals of the coupling capacitor are respectively connected with two terminals of a primary winding of the potential transformer (PT), and a secondary winding of the potential transformer (PT) is composed of a measuring winding (RZ1) and an energy-taking winding (RZ2) connected in series. According to the energy-taking system, normal power supply of a working power supply and on-line acquisition of operation voltage of a 110 kV line can be guaranteed after the 110 kV high voltage novel series voltage compensation device is put into operation so that the isolation costs between the 110 kV high voltage electrical network and a 0.1 kV light current signal and between the 110 kV high voltage electrical network and a 0.22 kV low voltage power supply are reduced.
Description
Technical field
The utility model relates to a kind of high-pressure series voltage compensating device and gets online energy system.
Background technology
High-pressure series voltage compensating device is a kind ofly to utilize the capacitive reactance of series capacitance to offset the induction reactance of circuit, thereby solve the voltage compensating device of load terminal voltage quality problems, therefore how this device must be arranged on the insulated platform that working voltage to ground is 110kV, for its power supply becomes a difficult problem.
Conventional power supply plan comprises that the 400V adopting in transformer station stands with power supply as the working power of installing at present, and the online acquisition that realizes circuit working voltage by the secondary voltage signal of conventional capacitance type potential transformer, but all there is the isolation difficult problem between high-low pressure.Domestic once had by many groups high-tension current inductor, solve be arranged on the insulated platform that working voltage to ground is 500kV that equipment working power gets can problem, but its complex structure, energy consumption are large, and the online acquisition of line voltage distribution still could not solve well.
Utility model content
The purpose of this utility model is to provide a kind of high-pressure series voltage compensating device and gets online energy system, can when getting energy, solve the isolating problem of weak electric signal, low-tension supply and high-voltage fence.
A kind of high-pressure series voltage compensating device is got energy system online, its special feature is: comprise coupling capacitor and voltage transformer, two inputs of this coupling capacitor are connected with ground with the high-pressure side of high-voltage fence respectively, and two outputs of this coupling capacitor are connected with winding two ends of voltage transformer respectively, the secondary winding of this voltage transformer can consist of by winding with getting jointly the measurement winding of connecting.
Wherein coupling capacitor comprises the first capacitor and second capacitor of series connection, one end of this first capacitor is connected with the high-pressure side of high-voltage fence, and one end of this second capacitor is connected with ground, and the two ends of this first capacitor are connected with winding two ends of voltage transformer respectively.
Wherein coupling capacitor comprises insulating coating, the first capacitor and second capacitor of series connection are installed in this insulating coating, outside on this insulating coating top is also provided with medium-tension bushing, and this medium-tension bushing is connected with the mid point of the second capacitor with the first capacitor; Bottom at this insulating coating is also provided with low-tension bushing and ground plate, and this ground plate is connected with one end of the second capacitor by low-tension bushing.
The beneficial effects of the utility model are: simple in structure, reliability is high, and be convenient to on-the-spot transformation and implement, and without for taking special quarantine measures between high-voltage fence and weak electric signal and low-tension supply.Through probationary certificate, adopt of the present utility model getting after energy system, can guarantee the novel series voltage compensation arrangement of 110kV high pressure put into operation after working power normal power supply, can also guarantee the novel series voltage compensation arrangement of 110kV high pressure put into operation after online acquisition to 110kV circuit working voltage, thereby saved the required cost of quarantine measures between 110kV high-voltage fence and 0.1kV weak electric signal and 0.22kV low-tension supply.
Accompanying drawing explanation
Accompanying drawing 1 is electrical schematic diagram of the present utility model;
Accompanying drawing 2 is the structural representation of coupling capacitor in the utility model.
Embodiment
As shown in Figure 1, 2, the utility model is that a kind of high-pressure series voltage compensating device is got energy system online, comprise coupling capacitor and voltage transformer pt, two inputs of this coupling capacitor are connected with ground with the high-pressure side of high-voltage fence respectively, and two outputs of this coupling capacitor are connected with winding two ends of voltage transformer pt respectively, the secondary winding of this voltage transformer pt can consist of by winding RZ2 with getting jointly the measurement winding RZ1 connecting.
Wherein coupling capacitor comprises the first capacitor C2 and the second capacitor C1 of series connection, one end of this first capacitor C2 is connected with the high-pressure side of high-voltage fence, and one end of this second capacitor C1 is connected with ground, and the two ends of this first capacitor C2 are connected with winding two ends of voltage transformer pt respectively.
Wherein coupling capacitor comprises insulating coating 2, the first capacitor C2 and the second capacitor C1 of series connection are installed in this insulating coating 2, outside on these insulating coating 2 tops is also provided with medium-tension bushing 1, and this medium-tension bushing 1 is connected with the mid point of the second capacitor C1 with the first capacitor C2; In the bottom of this insulating coating 2, low-tension bushing 3 and ground plate 4 are also installed, and this ground plate 4 is connected with one end of the second capacitor C1 by low-tension bushing 3.
Embodiment 1:
As shown in Figure 1, by the first capacitor C2 and the second capacitor C1, will be over the ground first
high pressure (110KV circuit) be reduced to the middle pressure signal of 10kV, then through voltage transformer pt, be reduced to the low-voltage signal of 0.1kV and 0.22kV.Wherein measuring winding RZ1 provides the online acquisition signal of 0.1kV circuit working voltage, gets the working power that energy winding RZ2 provides 0.22kV.
As shown in Figure 2, the special coupling capacitor of 110kV is mainly comprised of insulating coating 2, medium-tension bushing 1, low-tension bushing and ground plate 4 etc.The second capacitor C1 in Fig. 1 and the first capacitor C2 are arranged on the inside of insulating coating 2, the low-tension bushing 3 that is for experiment is in service to be directly connected with ground plate 4, to form series capacitance by the second capacitor C1 and the first capacitor C2, divide hydraulic circuit, 10kV intermediate voltage terminal is drawn by medium-tension bushing 1.The former limit winding of the voltage transformer pt in Fig. 1 (winding) medium-tension bushing 1 in Fig. 2 and the other end of the first capacitor C2 (being high-pressure side) are obtained power supply, then through measuring the double measurement signal of winding RZ1 output 0.1kV circuit working voltage, low-tension supply by getting energy winding RZ2 output 0.22kV, supplies the equipment such as control, energy storing of switch electric capacity and Temperature and Humidity Control of 110kV high-pressure series voltage compensating device that working power is provided.
Claims (3)
1. a high-pressure series voltage compensating device is got energy system online, it is characterized in that: comprise coupling capacitor and voltage transformer (PT), two inputs of this coupling capacitor are connected with ground with the high-pressure side of high-voltage fence respectively, and two outputs of this coupling capacitor are connected with winding two ends of voltage transformer (PT) respectively, the secondary winding of this voltage transformer (PT) by the measurement winding (RZ1) of connecting and get can winding (RZ2) jointly form.
2. high-pressure series voltage compensating device as claimed in claim 1 is got energy system online, it is characterized in that: wherein coupling capacitor comprises the first capacitor (C2) and second capacitor (C1) of series connection, one end of this first capacitor (C2) is connected with the high-pressure side of high-voltage fence, and one end of this second capacitor (C1) is connected with ground, and the two ends of this first capacitor (C2) are connected with winding two ends of voltage transformer (PT) respectively.
3. high-pressure series voltage compensating device as claimed in claim 2 is got energy system online, it is characterized in that: wherein coupling capacitor comprises insulating coating (2), the first capacitor (C2) and second capacitor (C1) of series connection are installed in this insulating coating (2), outside on this insulating coating (2) top is also provided with medium-tension bushing (1), and this medium-tension bushing (1) is connected with the mid point of the second capacitor (C1) with the first capacitor (C2); Low-tension bushing (3) and ground plate (4) are also installed in the bottom of this insulating coating (2), and this ground plate (4) is connected with one end of the second capacitor (C1) by low-tension bushing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747020.6U CN203574564U (en) | 2013-11-22 | 2013-11-22 | On-line energy taking system of high voltage series voltage compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320747020.6U CN203574564U (en) | 2013-11-22 | 2013-11-22 | On-line energy taking system of high voltage series voltage compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203574564U true CN203574564U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320747020.6U Expired - Fee Related CN203574564U (en) | 2013-11-22 | 2013-11-22 | On-line energy taking system of high voltage series voltage compensation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203574564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595291A (en) * | 2013-11-22 | 2014-02-19 | 国家电网公司 | On-line energy-gaining system of high-voltage series voltage compensation device |
-
2013
- 2013-11-22 CN CN201320747020.6U patent/CN203574564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595291A (en) * | 2013-11-22 | 2014-02-19 | 国家电网公司 | On-line energy-gaining system of high-voltage series voltage compensation device |
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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: 20140430 Termination date: 20151122 |
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| EXPY | Termination of patent right or utility model |