CN203491694U - Wind field booster system main transformer - Google Patents
Wind field booster system main transformer Download PDFInfo
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- CN203491694U CN203491694U CN201320658633.2U CN201320658633U CN203491694U CN 203491694 U CN203491694 U CN 203491694U CN 201320658633 U CN201320658633 U CN 201320658633U CN 203491694 U CN203491694 U CN 203491694U
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- transformer
- wind field
- winding
- main transformer
- neutral point
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- 238000004804 winding Methods 0.000 claims abstract description 26
- 230000007935 neutral effect Effects 0.000 claims abstract description 12
- 230000001629 suppression Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a wind field booster system main transformer. The transformer is a three-phase three-winding on-load voltage regulation transformer (1) with balanced windings. The high voltage side of the transformer is connected with a 110 kV power distribution unit. A medium voltage 35 kV neutral point is connected with an arc extinguishing coil or a grounding resistor (2). The 35 kV neutral point can be directly extracted to be connected with a neutral point device without a grounding transformer added.
Description
Technical field
The utility model relates to a kind of wind field booster system main transformer, particularly relates to the main transformer in a kind of wind field electric power booster system.
Background technology
In traditional wind field booster stations design, main transformer adopts three-phase double winding on-load tap-changing transformer (coil connects group: YN, d11) conventionally.Because wind field circuit is longer, 35kV system single-phase earth fault capacitance current is just easy to surpass 10A, for guaranteeing operational outfit and personnel's safety, 35kV side neutral point should be taked suitable mode ground connection, and traditional main transformer adopts three-phase double winding, coil to connect group: YN conventionally, the transformer of d11,35kV neutral point cannot be extracted out, need grounding transformer of increase especially, connect earth resistance or arc suppression coil.Drawing of inconvenient neutral point connects arc suppression coil or earth resistance.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of wind field booster system main transformer that can directly be connected with central point equipment.
The technical problem that will further solve is to provide a kind of wind field booster system main transformer of transformer and reactive power compensator for wind field station that connects.
The technical solution adopted in the utility model is as follows: a kind of wind field booster system main transformer, it is characterized in that: this transformer is the three-phase three winding on-load tap-changing transformers with balance winding, by the high-pressure side access high pressure 110kV power distribution equipment of three-phase three winding on-load tap-changing transformers, middle pressure 35kV neutral point connects arc suppression coil or earth resistance.
As it is further improved, the 10kV of balance winding is extracted out and connects wind field station transformer.
As it is further improved, the 10kV of balance winding is extracted out and connects reactive power compensator.
Compared with prior art, the beneficial effects of the utility model are: 35kV neutral point can directly be extracted the neutral point equipment that is connected to out, need not additionally increase grounding transformer newly.
Further beneficial effect is:
1, the 10kV of balance winding is extracted out and connects wind field station transformer, reduced the electric pressure of wind field station with transformer, save investment;
2, the 10kV of balance winding is extracted out and connects reactive power compensator, reduced 35kV switch cubicle quantity, reduced the electric pressure of reactive power compensator, save investment.
Accompanying drawing explanation
Fig. 1 is the wherein principle schematic of an embodiment of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
As shown in Figure 1, a kind of wind field booster system main transformer, it is characterized in that: this transformer is the three-phase three winding on-load tap-changing transformers 1 with balance winding, by the high-pressure side access high pressure 110kV power distribution equipment of three-phase three winding on-load tap-changing transformers, middle pressure 35kV neutral point connects arc suppression coil or earth resistance 2.
In specific implementation process, according to grid company specific requirement, middle pressure 35kV neutral point is extracted out and connected arc suppression coil or earth resistance 2.
The 10kV of balance winding is extracted out and connects transformer 3 for wind field station.
The 10kV of balance winding is extracted out and connects reactive power compensator 4.
Because reactive power compensator and station electricity consumption transformer adopting 35kV electric pressure ratio adopt 10kV cost high, and now balance winding also can be extracted use out, according to the offering of materials of Domestic Transformers producer, the capacity of general balance winding is that 33% of transformation rated capacity is selected.So utilizing balance winding to connect station equipment under the satisfied prerequisite of load is very economical way.
In this specific embodiment, each wind field arranges 1 with three-phase three winding main transformers of balance winding, need not additionally increase grounding transformer newly, has reduced the electric pressure of station with change and reactive power compensation simultaneously, not only saves investment, and primary electrical system is also very clear.
Claims (3)
1. a wind field booster system main transformer, it is characterized in that: this transformer is the three-phase three winding on-load tap-changing transformers with balance winding, by the high-pressure side access high pressure 110kV power distribution equipment of three-phase three winding on-load tap-changing transformers, middle pressure 35kV neutral point connects arc suppression coil or earth resistance.
2. main transformer according to claim 1, is characterized in that: the 10kV of balance winding is extracted out and connects wind field station transformer.
3. main transformer according to claim 1 and 2, is characterized in that: the 10kV of balance winding is extracted out and connects reactive power compensator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658633.2U CN203491694U (en) | 2013-10-24 | 2013-10-24 | Wind field booster system main transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658633.2U CN203491694U (en) | 2013-10-24 | 2013-10-24 | Wind field booster system main transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491694U true CN203491694U (en) | 2014-03-19 |
Family
ID=50262496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320658633.2U Expired - Lifetime CN203491694U (en) | 2013-10-24 | 2013-10-24 | Wind field booster system main transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491694U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185555A (en) * | 2015-11-05 | 2015-12-23 | 广西柳州特种变压器有限责任公司 | Main boosting transformer for wind farm |
| CN110148945A (en) * | 2019-05-15 | 2019-08-20 | 全球能源互联网研究院有限公司 | A Grounding Isolation Device Based on Low Frequency Transmission System |
| CN110544580A (en) * | 2018-10-31 | 2019-12-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Main transformer and boosting system of offshore wind power plant boosting station |
-
2013
- 2013-10-24 CN CN201320658633.2U patent/CN203491694U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185555A (en) * | 2015-11-05 | 2015-12-23 | 广西柳州特种变压器有限责任公司 | Main boosting transformer for wind farm |
| CN105185555B (en) * | 2015-11-05 | 2017-05-24 | 广西柳州特种变压器有限责任公司 | Main boosting transformer for wind farm |
| CN110544580A (en) * | 2018-10-31 | 2019-12-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Main transformer and boosting system of offshore wind power plant boosting station |
| CN110148945A (en) * | 2019-05-15 | 2019-08-20 | 全球能源互联网研究院有限公司 | A Grounding Isolation Device Based on Low Frequency Transmission System |
| CN110148945B (en) * | 2019-05-15 | 2020-09-29 | 全球能源互联网研究院有限公司 | Grounding isolation device based on low-frequency power transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |