CN107947193A - New 35kV 220kV substations SVG or SVC electric power systems - Google Patents
New 35kV 220kV substations SVG or SVC electric power systems Download PDFInfo
- Publication number
- CN107947193A CN107947193A CN201711488451.4A CN201711488451A CN107947193A CN 107947193 A CN107947193 A CN 107947193A CN 201711488451 A CN201711488451 A CN 201711488451A CN 107947193 A CN107947193 A CN 107947193A
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- CN
- China
- Prior art keywords
- svg
- svc
- low
- substations
- main transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
New 35kV 220kV substations SVG or SVC electric power systems.The invention discloses one kind to include main transformer low-voltage coil, cable, copper busbar, 10kV isolation switch, the SVG or SVC of 10kV or 6kV voltage class；SVG or SVC that 10kV or 6kV voltage class is individually in the substation step-down transformer powered and connected 35kV switchgears are cancelled, in main transformer low-pressure side one group of low-voltage coil of increase be 10kV by the high voltage drop of 35kV 220kV or 6kV is directly that SVG or SVC powers.The present invention cancels the SVG (C) that 10kV or 6kV voltage class is individually in the substation step-down transformers powered and connected 35kV switchgears, and in main transformer low-pressure side one group of low-voltage coil of increase be 10kV by the high voltage drop of 35kV 220kV or 6kV is directly SVG (C) power supplies.The purchase cost solved caused by equipment increase is high, and field device foundation construction and equipment installation project amount are big, and having subtracted intermediate link reduces O＆M difficulty.
Description
Technical field
The present invention relates to a kind of new 35kV-220kV substations SVG or SVC electric power system.
Background technology
In currently available technology, for having in the substation of 35kV-220kV to the designing scheme of SVG or SVC electric power systems
Two kinds：One kind is the power supply of 35kV direct hanging types, and this mode compares larger situation suitable for SVG or SVC capacity；Another kind is
Voltage is become into 10kV or 6kV by step-down transformer by 35kV, is then powered again to SVG or SVC, this mode is suitable for
The relatively small situation of SVG or SVC capacity, but in existing 35kV-220kV substations 10kV or 6kV voltage class SVG
Or need to be provided separately a step-down transformer in SVC electric power systems for its power supply, bring following shortcoming：1. because of equipment increase
Caused purchase cost is high；2. equipment increases field device foundation construction and equipment installation project amount is big；The operation and maintenance of 3 later stages
Difficulty increase, the safety in production to power station produce some potential safety problems；A series of problems, such as.
The content of the invention
A kind of the defects of the technical problem to be solved in the present invention is the prior art is overcome, there is provided new 35kV-220kV power transformations
Stand SVG or SVC electric power systems.
In order to solve the above technical problem, the present invention provides following technical solution：
The present invention provides a kind of new 35kV-220kV substations SVG or SVC electric power system, including main transformer low-voltage coil,
Cable, copper busbar, 10kV isolation switch, the SVG or SVC of 10kV or 6kV voltage class；To be individually in substation 10kV or
The step-down transformer and connected 35kV switchgears of SVG or the SVC power supply of 6kV voltage class are cancelled, in main transformer low pressure
Side one group of low-voltage coil of increase is 10kV by the high voltage drop of 35kV-220kV or 6kV is directly that SVG or SVC powers.
Further, it is directly connected between main transformer low-pressure side 10kV or 6kV ends and SVG or SVC using cable or copper busbar.
Further, SVG or SVC ends of incoming cables are equipped with 10kV isolation switch, and the maintenance for SVG or SVC provides facility.
The beneficial effect that is reached of the present invention is：
The present invention is by using above-mentioned 35kV-220kV substations SVG or SVC electric power systems, because will be single in substation
Solely cancel for the SVG or SVC of 10kV or 6kV the voltage class step-down transformer powered and connected 35kV switchgears,
Solve the problems, such as that the purchase cost caused by equipment increase is high；Will because increasing by one group of low-voltage coil in main transformer low-pressure side
The high voltage drop of 35kV-220kV is 10kV or 6kV is directly SVG or SVC power supplies, is solved because individually setting up step-down transformer
And the problem of field device foundation construction produced and big equipment installation project amount；Because main transformer low-pressure side 10kV or 6kV ends with
It is directly connected between SVG or SVC using cable or copper busbar, has subtracted intermediate link, and be equipped with SVG or SVC ends of incoming cables
10kV isolation switch, solves the difficult increase of later stage operation and maintenance, and the safety in production to power station produces some potential safety problems etc.
A series of problems.
Brief description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure diagram of the present invention.
Embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, the present invention provides a kind of new 35kV-220kV substations SVG or SVC electric power system, including main transformer
Low-voltage coil, cable, copper busbar, 10kV isolation switch, the SVG or SVC of 10kV or 6kV voltage class；Will be single in substation
Solely cancel for the SVG or SVC of 10kV or 6kV the voltage class step-down transformer powered and connected 35kV switchgears,
In main transformer low-pressure side one group of low-voltage coil of increase be 10kV by the high voltage drop of 35kV-220kV or 6kV is directly that SVG or SVC is supplied
Electricity.It is directly connected between main transformer low-pressure side 10kV or 6kV ends and SVG or SVC using cable or copper busbar.SVG or SVC ends of incoming cables
Equipped with 10kV isolation switch, the maintenance for SVG or SVC provides facility.
In the present embodiment, main transformer 1 includes high-tension coil T, low pressure 35kV end T2 and low pressure 10kV or 6kV end T3；Institute
State low pressure 10kV or 6kV end T3 and SVG device 4 is connected by power cable 2 and isolation plug-in strip 3.
The beneficial effect that is reached of the present invention is：
The present invention is by using above-mentioned 35kV-220kV substations SVG or SVC electric power systems, because will be single in substation
Solely cancel for the SVG or SVC of 10kV or 6kV the voltage class step-down transformer powered and connected 35kV switchgears,
Solve the problems, such as that the purchase cost caused by equipment increase is high；Will because increasing by one group of low-voltage coil in main transformer low-pressure side
The high voltage drop of 35kV-220kV is 10kV or 6kV is directly SVG or SVC power supplies, is solved because individually setting up step-down transformer
And the problem of field device foundation construction produced and big equipment installation project amount；Because main transformer low-pressure side 10kV or 6kV ends with
It is directly connected between SVG or SVC using cable or copper busbar, has subtracted intermediate link, and be equipped with SVG or SVC ends of incoming cables
10kV isolation switch, solves the difficult increase of later stage operation and maintenance, and the safety in production to power station produces some potential safety problems etc.
A series of problems.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (3)
1. new 35kV-220kV substations SVG or SVC electric power system, including main transformer low-voltage coil, cable, copper busbar,
10kV isolation switch, the SVG or SVC of 10kV or 6kV voltage class；It is characterized in that, 10kV or 6kV will be individually in substation
The step-down transformer and connected 35kV switchgears of SVG or the SVC power supply of voltage class are cancelled, and increase in main transformer low-pressure side
Add that the high voltage drop of 35kV-220kV is 10kV by one group of low-voltage coil or 6kV is directly that SVG or SVC power.
2. new 35kV-220kV substations SVG or SVC electric power system according to claim 1, it is characterised in that main transformer
It is directly connected between low-pressure side 10kV or 6kV ends and SVG or SVC using cable or copper busbar.
3. new 35kV-220kV substations SVG or SVC electric power system according to claim 1, it is characterised in that SVG
Or SVC ends of incoming cables are equipped with 10kV isolation switch, the maintenance for SVG or SVC provides facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488451.4A CN107947193A (en) | 2017-12-29 | 2017-12-29 | New 35kV 220kV substations SVG or SVC electric power systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488451.4A CN107947193A (en) | 2017-12-29 | 2017-12-29 | New 35kV 220kV substations SVG or SVC electric power systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947193A true CN107947193A (en) | 2018-04-20 |
Family
ID=61937152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711488451.4A Pending CN107947193A (en) | 2017-12-29 | 2017-12-29 | New 35kV 220kV substations SVG or SVC electric power systems |
Country Status (1)
| Country | Link |
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| CN (1) | CN107947193A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882774A (en) * | 2010-03-30 | 2010-11-10 | 南方电网技术研究中心 | DC de-icing device without special rectifier transformer and protection method thereof |
| CN201994171U (en) * | 2011-03-22 | 2011-09-28 | 中国电力工程顾问集团西南电力设计院 | High-voltage transformer with novel transmission rate grade |
| WO2013083064A1 (en) * | 2011-12-09 | 2013-06-13 | 国网智能电网研究院 | Uninterrupted ice melting, svg type static reactive power compensation compound device and applying method thereof |
| CN103176087A (en) * | 2013-03-13 | 2013-06-26 | 绍兴电力局 | Multi-voltage-class high-capacity test loop |
| CN103532151A (en) * | 2013-09-30 | 2014-01-22 | 广西电网公司河池供电局 | Multi-side voltage reactive power coordination optimal control system for transformer substation |
-
2017
- 2017-12-29 CN CN201711488451.4A patent/CN107947193A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882774A (en) * | 2010-03-30 | 2010-11-10 | 南方电网技术研究中心 | DC de-icing device without special rectifier transformer and protection method thereof |
| CN201994171U (en) * | 2011-03-22 | 2011-09-28 | 中国电力工程顾问集团西南电力设计院 | High-voltage transformer with novel transmission rate grade |
| WO2013083064A1 (en) * | 2011-12-09 | 2013-06-13 | 国网智能电网研究院 | Uninterrupted ice melting, svg type static reactive power compensation compound device and applying method thereof |
| CN103176087A (en) * | 2013-03-13 | 2013-06-26 | 绍兴电力局 | Multi-voltage-class high-capacity test loop |
| CN103532151A (en) * | 2013-09-30 | 2014-01-22 | 广西电网公司河池供电局 | Multi-side voltage reactive power coordination optimal control system for transformer substation |
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Application publication date: 20180420 |
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