CN103595291A - On-line energy-gaining system of high-voltage series voltage compensation device - Google Patents
On-line energy-gaining system of high-voltage series voltage compensation device Download PDFInfo
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- CN103595291A CN103595291A CN201310597943.2A CN201310597943A CN103595291A CN 103595291 A CN103595291 A CN 103595291A CN 201310597943 A CN201310597943 A CN 201310597943A CN 103595291 A CN103595291 A CN 103595291A
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Abstract
The invention relates to an on-line energy-gaining system of a high-voltage series voltage compensation device. The on-line energy-gaining system is characterized by comprising a coupling capacitor and a voltage transformer (PT), wherein two input ends of the coupling capacitor are respectively connected with the high-voltage end of a high-voltage power grid and the ground, two output ends of the coupling capacitor are respectively connected with two ends of a primary winding of the voltage transformer (PT), and a secondary winding of the voltage transformer (PT) consists of a measurement winding (RZ1) and an energy-gaining winding (RZ2) which are jointly connected in series. A trial proves that after adopting the on-line energy-gaining system of the high-voltage series voltage compensation device, normal power supplying of a working power supply and on-line acquisition of 110kV line operating voltage can be ensured after a novel 110kV high-voltage series voltage compensation device is put into operation, and accordingly the cost for isolation between a 110kV high-voltage power grid and a 0.1kV weak current signal and a 0.22kV low-voltage power supply is saved.
Description
Technical field
The present invention relates to a kind of high-pressure series voltage compensating device and get 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.
Summary of the invention
The object of this invention is to provide a kind of high-pressure series voltage compensating device and get 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 invention has the beneficial effects as follows: simple in structure, reliability is high, 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 invention 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 invention;
Accompanying drawing 2 is the structural representation of coupling capacitor in the present invention.
Embodiment
As shown in Figure 1, 2, the present invention 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 |
|---|---|---|---|
| CN201310597943.2A CN103595291A (en) | 2013-11-22 | 2013-11-22 | On-line energy-gaining system of high-voltage series voltage compensation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310597943.2A CN103595291A (en) | 2013-11-22 | 2013-11-22 | On-line energy-gaining system of high-voltage series voltage compensation device |
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| CN103595291A true CN103595291A (en) | 2014-02-19 |
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| CN201310597943.2A Pending CN103595291A (en) | 2013-11-22 | 2013-11-22 | On-line energy-gaining system of high-voltage series voltage compensation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267231A (en) * | 2014-09-01 | 2015-01-07 | 珠海许继电气有限公司 | Miniature voltage energy obtaining device arranged in switchgear |
| CN104319161A (en) * | 2014-10-10 | 2015-01-28 | 珠海许继电气有限公司 | Self-powered outdoor pole-mounted intelligent circuit breaker complete equipment |
| CN105703635A (en) * | 2016-03-30 | 2016-06-22 | 西安兴汇电力科技有限公司 | Integrated high-voltage energy-obtaining power supply and assembling and installing method therefor |
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| FR2870650A1 (en) * | 2004-05-21 | 2005-11-25 | Electricite De France | METHOD AND INSTALLATION OF POWER SUPPLY IN ELECTRIC POWER |
| CN201072701Y (en) * | 2007-08-15 | 2008-06-11 | 无锡市锡容电力电器厂 | Capacitive potential divider |
| CN102354598A (en) * | 2011-06-30 | 2012-02-15 | 中国西电电气股份有限公司 | Capacitive divider with medium voltage positioned at high-voltage side |
| CN202334336U (en) * | 2011-11-10 | 2012-07-11 | 程顺 | Active electronic type transformer power supply |
| CN203574564U (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | On-line energy taking system of high voltage series voltage compensation device |
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2013
- 2013-11-22 CN CN201310597943.2A patent/CN103595291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2870650A1 (en) * | 2004-05-21 | 2005-11-25 | Electricite De France | METHOD AND INSTALLATION OF POWER SUPPLY IN ELECTRIC POWER |
| CN201072701Y (en) * | 2007-08-15 | 2008-06-11 | 无锡市锡容电力电器厂 | Capacitive potential divider |
| CN102354598A (en) * | 2011-06-30 | 2012-02-15 | 中国西电电气股份有限公司 | Capacitive divider with medium voltage positioned at high-voltage side |
| CN202334336U (en) * | 2011-11-10 | 2012-07-11 | 程顺 | Active electronic type transformer power supply |
| CN203574564U (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | On-line energy taking system of high voltage series voltage compensation device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267231A (en) * | 2014-09-01 | 2015-01-07 | 珠海许继电气有限公司 | Miniature voltage energy obtaining device arranged in switchgear |
| CN104319161A (en) * | 2014-10-10 | 2015-01-28 | 珠海许继电气有限公司 | Self-powered outdoor pole-mounted intelligent circuit breaker complete equipment |
| CN105703635A (en) * | 2016-03-30 | 2016-06-22 | 西安兴汇电力科技有限公司 | Integrated high-voltage energy-obtaining power supply and assembling and installing method therefor |
| CN105703635B (en) * | 2016-03-30 | 2017-05-31 | 西安兴汇电力科技有限公司 | Integrated high voltage draw-out power supply and its assembling and installation method |
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Application publication date: 20140219 |