CN204304428U - 800kV extra-high voltage direct-current filter capacitor device - Google Patents
800kV extra-high voltage direct-current filter capacitor device Download PDFInfo
- Publication number
- CN204304428U CN204304428U CN201420769660.1U CN201420769660U CN204304428U CN 204304428 U CN204304428 U CN 204304428U CN 201420769660 U CN201420769660 U CN 201420769660U CN 204304428 U CN204304428 U CN 204304428U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- adopts
- stand
- subharmonic
- current
- 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.)
- Active
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A kind of 800kV extra-high voltage direct-current filter capacitor device, it comprises capacitor, support insulator and stand, 30 layers of modular construction that capacitor individual layer stand is successively piled up; Every layer of stand adopts capacitor unit 2 and 4 strings; 1/2 potential point of every layer capacitor series connection connects stand; layer insulation adopts the reinforced support insulator of 72.5kV level; bottom adopts 8 330kV support insulators; it is characterized in that: adopt three Chinese character pin-shaped settings of single tower; relay protection adopts Double-bridge type difference stream, and stand installs corona ring additional, and between capacitor, connecting line adopts insulated conductor to connect.The utility model can be used for filtering electrical network 2/39 and 12/24 subharmonic, and device adopts three Chinese character pin-shaped syndetons of single tower, and its advantage is that capacitor unit equalizing resistance is safe and reliable.Capacitor banks tolerance is little; Relay protection and Insulation Coordination are reasonable, compact conformation, and floor space is little; Mechanical strength is high, meets shockproof requirements.
Description
Technical field
The utility model relates to power transformation or distribution technique field, particularly a kind of 800kV extra-high voltage direct-current filter capacitor device.
Background technology
Direct-current transmission converter station, owing to adopting high-power thyristor rectifying installation, can produce a large amount of harmonic current at electrical network DC side, therefore needs to install DC filter, and DC filter is connected between pole bus and the pole neutral conductor.Due to electric pressure high (maximum working voltage reaches 1450kV), its protection sensitivity and Insulation Coordination require high.In addition due to floor space and shockproof requirements, need adopt the Chinese character pin-shaped arrangement of single tower, Capacitor stack height reaches 24.6 meters, and its structure must carry out seismic resistance calculation.
Summary of the invention
It is safe and reliable that the purpose of this utility model is to provide a kind of equalizing resistance.The 800kV extra-high voltage direct-current filter capacitor device that Capacitor banks tolerance is little
The utility model realizes like this, it comprises two 2/39 subharmonic Dan Ta and 12/24 subharmonic list towers, 30 layers of modular construction that single control tower frame is successively piled up, every layer of stand adopts capacitor unit 2 and 4 strings, 1/2 potential point of every layer capacitor series connection connects stand, and layer insulation adopts the reinforced support insulator of 72.5kV level; Bottom adopts 8 330kV support insulators; it is characterized in that: two 2/39 subharmonic Dan Ta and 12/24 subharmonic list towers are Chinese character pin-shaped layout; stand installs corona ring additional; 2/39 subharmonic list tower is provided with Double-bridge difference protection circuit, 12/24 subharmonic list tower is provided with single Bridge differential current protection circuit.
The utility model adopts three Chinese character pin-shaped layouts of single tower, can filtering electrical network 2/39 and 12/24 subharmonic, and its advantage is that relay protection and Insulation Coordination are reasonable, compact conformation, and floor space is little; Mechanical strength is high, meets shockproof requirements.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the structural representation of 800kV extra-high voltage direct-current filter capacitor device;
Fig. 2 is the structural representation of 2/39 subharmonic list tower;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of 12/24 subharmonic list tower;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is single Bridge differential current protection circuit diagram;
Fig. 7 is Double-bridge difference protection circuit figure.
Detailed description of the invention
As shown in Fig. 1-7, this 800kV extra-high voltage direct-current filter capacitor device comprises top struts insulator 1, corona ring 2, support insulator 3, DC filter capacitors 4 and bottom shore insulator 5, two 2/39 subharmonic list towers 6 and a 12/24 subharmonic list tower 7, 30 layers of modular construction that the stand of 2/39 subharmonic list tower 6 and 12/24 subharmonic list tower 7 is successively piled up, every layer of stand adopts capacitor unit 2 and 4 strings, 1/2 potential point of every layer capacitor series connection connects stand, layer insulation adopts the reinforced support insulator of 72.5kV level, bottom adopts 8 330kV support insulators, two 2/39 subharmonic list towers 6 and a 12/24 subharmonic list tower 7 are in Chinese character pin-shaped layout, stand installs additional corona ring 2, 2/39 subharmonic list tower 6 is provided with Double-bridge difference protection circuit, 12/24 subharmonic list tower 7 is provided with single Bridge differential current protection circuit.Double-bridge type difference current circuit is made up of two bridge difference circuits, comprises Capacitor banks C1, C2, C3, C4 summation current transformer L1, L2, adopts 4 and 120 string structures.Each bridge difference circuit adopts 2 and 120 string structures; current transformer L1 is all met in the middle of Capacitor banks C1, C2; current transformer L2 is all met in the middle of Capacitor banks C3, C4; when capacitor internal component wear; capacitive reactance capacitor increases, and difference appears in bridge arm current, flows through current transformer; when this current value reach adjust protection calculation value time, relay sends signal.Single bridge-type difference current circuit is made up of single bridge difference circuit, comprises Capacitor banks C5, C6 summation current transformer L3, adopts 2 and 120 string structures.Indirect current transformer L3 in Capacitor banks C5, C6, when capacitor internal component wear, capacitive reactance capacitor increase, there is difference in bridge arm current, flows through current transformer L3, when this current value reach adjust protection calculation value time, relay sends signal.
Claims (3)
1. a 800kV extra-high voltage direct-current filter capacitor device, it comprises two 2/39 subharmonic Dan Ta and 12/24 subharmonic list towers, 30 layers of modular construction that single tower layer stand is successively piled up, every layer of stand adopts capacitor unit 2 and 4 strings, 1/2 potential point of every layer capacitor series connection connects stand, and layer insulation adopts the reinforced support insulator of 72.5kV level; Bottom adopts 8 330kV support insulators; it is characterized in that: two 2/39 subharmonic Dan Ta and 12/24 subharmonic list towers are Chinese character pin-shaped layout; stand installs corona ring additional; 2/39 subharmonic list tower is provided with Double-bridge difference protection circuit, 12/24 subharmonic list tower is provided with single Bridge differential current protection circuit.
2. Ju 800kV extra-high voltage direct-current according to claim 1 filter capacitor device, it is characterized in that: Double-bridge type difference current circuit is made up of two bridge difference circuits, comprise Capacitor banks C1, C2, C3, C4 summation current transformer L1, L2, adopt 4 and 120 string structures, each bridge difference circuit adopts 2 and 120 string structures, be provided with current transformer L1 in the middle of Capacitor banks C1, C2, in the middle of Capacitor banks C3, C4, be provided with current transformer L2.
3. Ju 800kV extra-high voltage direct-current according to claim 1 filter capacitor device, it is characterized in that: single bridge-type difference current circuit is made up of single bridge difference circuit, comprise Capacitor banks C5, C6 summation current transformer L3, adopt 2 and 120 string structures, indirect current transformer L3 in Capacitor banks C5, C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769660.1U CN204304428U (en) | 2014-12-10 | 2014-12-10 | 800kV extra-high voltage direct-current filter capacitor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769660.1U CN204304428U (en) | 2014-12-10 | 2014-12-10 | 800kV extra-high voltage direct-current filter capacitor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204304428U true CN204304428U (en) | 2015-04-29 |
Family
ID=53109942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769660.1U Active CN204304428U (en) | 2014-12-10 | 2014-12-10 | 800kV extra-high voltage direct-current filter capacitor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204304428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024376A (en) * | 2016-07-06 | 2016-10-12 | 桂林电力电容器有限责任公司 | Layered anti-shock electric power capacitor device |
-
2014
- 2014-12-10 CN CN201420769660.1U patent/CN204304428U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024376A (en) * | 2016-07-06 | 2016-10-12 | 桂林电力电容器有限责任公司 | Layered anti-shock electric power capacitor device |
| CN106024376B (en) * | 2016-07-06 | 2018-08-31 | 桂林电力电容器有限责任公司 | A kind of hierarchical antidetonation power capacitor apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103337874B (en) | Photovoltaic power generation system, and voltage compensation device and converter applicable to same | |
| CN104267231A (en) | Miniature voltage energy obtaining device arranged in switchgear | |
| CN204088899U (en) | The vertical wire outlet structure of Novel outdoor GIS power distribution equipment | |
| CN103187725A (en) | Direct current power transmission system | |
| CN204304428U (en) | 800kV extra-high voltage direct-current filter capacitor device | |
| CN102638047A (en) | Three-phase unified power quality control device with bypass switches | |
| CN204142808U (en) | A kind of miniature voltage energy taking device be built in switchgear | |
| CN101694960B (en) | High-voltage direct-current polar PLC capacitor | |
| CN203729647U (en) | Cable terminal tower device | |
| CN104051972B (en) | A kind of 35kV combined transformer for photovoltaic generation | |
| CN203350399U (en) | Synthesized voltage testing system used for high altitude region direct current and impact | |
| CN201674411U (en) | Deflector with full-bridge three-level control | |
| CN201918720U (en) | Neutral point grounding resistor capable of removing arc flashover | |
| CN203573821U (en) | High-voltage parallel capacitor | |
| CN203071442U (en) | A high-voltage capacitor device | |
| CN204179489U (en) | A kind of storehouse laminated type lighting protection arrester | |
| CN104134537B (en) | Integrated form electric power power capacitor reactive compensation installation | |
| CN204142823U (en) | A kind of measurement and protective device being applied to 10kV electric system | |
| CN203787789U (en) | T and pi mixed net rack wiring structure applied to high voltage distribution | |
| CN202473613U (en) | Assembling capacitor bank with insulated supports | |
| CN203521177U (en) | Equipotential connection high-voltage DC capacitor | |
| CN202444264U (en) | Active power filter based on full bridge topology | |
| CN204304433U (en) | 750kV extra-high-voltage alternating current filter capacitor device | |
| CN202957433U (en) | Flexible bus connector | |
| CN202474861U (en) | Main wiring structure of filter device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200811 Granted publication date: 20150429 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230811 Granted publication date: 20150429 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230811 Granted publication date: 20150429 |