CN202059172U - Arc suppression coil linkage adjusting system - Google Patents
Arc suppression coil linkage adjusting system Download PDFInfo
- Publication number
- CN202059172U CN202059172U CN2011201913447U CN201120191344U CN202059172U CN 202059172 U CN202059172 U CN 202059172U CN 2011201913447 U CN2011201913447 U CN 2011201913447U CN 201120191344 U CN201120191344 U CN 201120191344U CN 202059172 U CN202059172 U CN 202059172U
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- CN
- China
- Prior art keywords
- arc suppression
- suppression coil
- main transformer
- isolating switch
- lead
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- Expired - Fee Related
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- 230000001629 suppression Effects 0.000 title claims abstract description 55
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an arc suppression coil linkage adjusting system, which comprises two main transformers which are connected in parallel through buses. An arc suppression coil is arranged on a neutral point of each main transformer respectively. An isolating switch is arranged between each arc suppression coil and the corresponding main transformer respectively. The two arc suppression coils are connected through a lead, and a connection isolating switch is arranged on the lead. The arc suppression coil linkage adjusting system can fully utilize capacity of the arc suppression coils and saves investment and energy, protects environment, and required smaller arc suppression coil capacity when a substation operates with partial load can be adjusted.
Description
Technical field
The utility model relates to a kind of arc suppression coil interlock regulating system that can make full use of the capacity of arc suppression coil.
Background technology
Because China's industrial development is rapid, has adopted the 35kV cable line in large quantities, and system capacitive current is exceeded standard in a large number.When in this case single phase ground fault taking place, the electric arc that capacitance current forms in the fault point can not be easy to form permanent fault for a long time from horizontal blanking, and the expansion accident seriously threatens the safety of system.When main transformer 35kV side adopted the wiring of " Y " type, the 35kV neutral point can be for earth-free or through grounding through arc, the 35kV system can allow to operate with failure 2 hours.When capacitance current greater than required value, need arc suppression coil be installed in main transformer 35kV neutral point side.
Initial stage is installed common arc suppression coil additional and has solved a part of problem, but the system capacitive current variation is too fast, and the speed of device response does not satisfy requirement.China had adopted automatic tracking and compensating arc distinction coil the complete sets of equipment in recent years, in real time can the automatic measuring system capacitance current when normally moving in system; The fast automatic compensating coefficient that enters when system's generation single phase ground fault, output and the corresponding perceptual offset current of system's unbalanced earth fault capacitance current between system neutral and ground have limited earth current and have eliminated earth current; Earth fault withdraws from compensating coefficient after eliminating automatically.
Every main transformer 35kV side configuration one cover arc suppression coil satisfies the isolated operation of this section load, is fit to the lower simple wiring of reliability such as 35kV single busbar connection and cell branch wiring.
Along with the raising that load requires power supply reliability, when the 35kV of transformer station adopted single-trunk segmental wiring, because 1 main transformer is stopped transport, 1 main transformer need be with 70% of all 35kV loads in addition.When choosing arc suppression coil as the capacitance current of loading by institute's tape splicing on 1 section bus, when 1 main transformer is stopped transport, the arc suppression coil of this main transformer is stopped transport with main transformer, 1 arc suppression coil capacity is not enough in addition, so need are chosen arc suppression coil (seeing accompanying drawing 1) by the full-power capacitance current of 2 sections buses of 2 main transformers.When normal operation, the arc suppression coil of every main transformer all has idle capacity.
The utility model content
The purpose of this utility model is to provide a kind of arc suppression coil interlock regulating system.
The purpose of this utility model is implemented by following technical scheme, a kind of arc suppression coil interlock regulating system, it includes two main transformers, two described main transformers connect side by side by bus respectively, be connected with arc suppression coil on the neutral point of every described main transformer respectively, be respectively equipped with isolating switch between each described arc suppression coil and the corresponding described main transformer, two described arc suppression coils connect by lead, and described lead is provided with the contact isolating switch.
Be respectively equipped with lead-in circuit breaker on the bus of two described main transformers of connection.
Described contact isolating switch also can be circuit breaker or contactor.
Described arc suppression coil by every main transformer with the capacitance current of loading on bus configuration.
A kind of arc suppression coil interlock regulating system can be applicable to 35kV single-trunk segmental wiring or 35kV double bus scheme.
The utility model operational mode: the contact isolating switch between two main transformer fanout operations, two arc suppression coils disconnects, two arc suppression coil fanout operations; When main transformer is stopped transport, during all loads of another main transformer band, the contact isolating switch closure between two arc suppression coils, two arc suppression coils realize that principals and subordinates regulate.The arc suppression coil principal and subordinate regulates and is meant that with an arc suppression coil be main frame, and another arc suppression coil is a slave, establishes i.e. " control two " pattern of a cover Arc Suppression Coil Control screen.
Operational mode:
Contact isolating switch between the isolating switch closure when 1) normally moving between main transformer and the arc suppression coil, two arc suppression coils disconnects, and two arc suppression coils are connected to respectively on the corresponding with it main transformer.
When 2) main transformer withdrawed from, the isolating switch that is attached thereto disconnected, contact isolating switch between two arc suppression coils and the isolating switch closure that is connected with the main transformer of operation, and two arc suppression coils are connected on the main transformer neutral point of operation side by side.
3) two isolating switches and contact isolating switch in a kind of arc suppression coil interlock regulating system, three switches can only closed two.
Advantage of the present utility model is, can make full use of the capacity of arc suppression coil, saves investment, energy-conserving and environment-protective; Need less arc suppression coil capacity in the time of can accessing transformer station's band portion load operation.
Description of drawings
Fig. 1 is existing main transformer and arc suppression coil connection diagram
Fig. 2 is 1 one kinds of arc suppression coil interlocks of embodiment regulating system schematic diagram
Main transformer 1, isolating switch 2, arc suppression coil 3, lead-in circuit breaker 4, bus 5, contactor 6, lead 7.
Embodiment
Embodiment 1: a kind of arc suppression coil interlock regulating system, it includes two main transformers 1, two main transformers 1 connect side by side by bus 5 respectively, be connected with arc suppression coil 3 on the neutral point of every main transformer 1 respectively, be respectively equipped with isolating switch 2 between each arc suppression coil 3 and the corresponding main transformer 1, two arc suppression coils 3 connect by lead 7, and lead 7 is provided with contactor 6.Be respectively equipped with lead-in circuit breaker 4 on the bus 5 of two main transformers 1 of connection.
Claims (3)
1. arc suppression coil interlock regulating system, it includes two main transformers, two described main transformers connect side by side by bus respectively, be connected with arc suppression coil on the neutral point of every described main transformer respectively, be respectively equipped with isolating switch between each described arc suppression coil and the corresponding described main transformer, it is characterized in that two described arc suppression coils connect by lead, described lead is provided with the contact isolating switch.
2. a kind of arc suppression coil interlock regulating system according to claim 1 is characterized in that, is respectively equipped with lead-in circuit breaker on the bus of two described main transformers of connection.
3. a kind of arc suppression coil interlock regulating system according to claim 1 is characterized in that described contact isolating switch is circuit breaker or contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201913447U CN202059172U (en) | 2011-05-31 | 2011-05-31 | Arc suppression coil linkage adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201913447U CN202059172U (en) | 2011-05-31 | 2011-05-31 | Arc suppression coil linkage adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202059172U true CN202059172U (en) | 2011-11-30 |
Family
ID=45019136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201913447U Expired - Fee Related CN202059172U (en) | 2011-05-31 | 2011-05-31 | Arc suppression coil linkage adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202059172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570413A (en) * | 2012-01-04 | 2012-07-11 | 广东省电力设计研究院 | Compensatory protection and linked tripping device for submarine cable |
| CN103377815A (en) * | 2012-04-20 | 2013-10-30 | 特变电工沈阳变压器集团有限公司 | Single-phase combined transformer |
-
2011
- 2011-05-31 CN CN2011201913447U patent/CN202059172U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570413A (en) * | 2012-01-04 | 2012-07-11 | 广东省电力设计研究院 | Compensatory protection and linked tripping device for submarine cable |
| CN103377815A (en) * | 2012-04-20 | 2013-10-30 | 特变电工沈阳变压器集团有限公司 | Single-phase combined transformer |
| CN103377815B (en) * | 2012-04-20 | 2016-03-16 | 特变电工沈阳变压器集团有限公司 | Monophasic combination formula transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20200531 |