CN202013813U - Grounding device for parallel capacitor bank - Google Patents
Grounding device for parallel capacitor bank Download PDFInfo
- Publication number
- CN202013813U CN202013813U CN2011200670128U CN201120067012U CN202013813U CN 202013813 U CN202013813 U CN 202013813U CN 2011200670128 U CN2011200670128 U CN 2011200670128U CN 201120067012 U CN201120067012 U CN 201120067012U CN 202013813 U CN202013813 U CN 202013813U
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- China
- Prior art keywords
- earthing
- capacitor unit
- shunt capacitor
- utmost point
- capacitor bank
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a grounding device for a parallel capacitor bank which is provided with a group of four-electrode grounding disconnecting switches; three electrodes of the four-electrode grounding disconnecting switches are connected with the coming line side of the parallel capacitor bank, and the other electrode is connected with the neutral point of the parallel capacitor bank. With the adoption of the grounding device, the reliability of the grounding of the capacitor bank can be ensured, the security and convenience of the equipment repair are improved; meanwhile, equipment manufacturing resources are saved, the convenience of the daily patrol and repair of operation personnel is greatly improved, and the operating cost is reduced.
Description
Technical field
The utility model relates to a kind of earthing device, relates in particular to a kind of earthing device of Shunt Capacitor Unit.
Background technology
Often relate to the Shunt Capacitor Unit the complete sets of equipment in the power system operation process, when interruption maintenance, the end of incoming cables of capacitor group and neutral point side all need reliable ground.
Referring to Fig. 1, at Shunt Capacitor Unit C end of incoming cables installing three-phase earthing isolator QE0, the ground connection of inlet wire side is directly realized by operation three-phase earthing isolator QE0, but the ground connection of neutral point side just need manually articulate earth connection.Be that the inlet wire side adopts three-phase earthing isolator QE0, neutral point side to adopt the earthing mode that manually articulates earth connection.Because the position that articulates of neutral point side is the high voltage position, directly adopts manual operation to have certain potential safety hazard, and some the time staff forget easily and articulate artificial earthing's line.
Referring to Fig. 2, manually articulate the defective that earth connection can reduce maintainer's fail safe for solving, can directly install one single-phase earthing isolating switch QE2 in neutral point side.Be that the inlet wire side adopts three-phase earthing isolator QE1, neutral point side to adopt the earthing mode of single-phase earthing isolating switch QE2.Though the method has solved the safety problem that original neutral point side manually articulates earth connection, improve the convenience of maintainer's fail safe and operations staff operation.But because neutral point side earthing isolator and inlet wire side joint ground isolating switch respectively carry independently operating mechanism, after the capacitor group has a power failure, to operate the ground connection operation before two earthing isolators just can be finished maintenance respectively, bring big inconvenience for operations staff's ground connection operation, increased the tour maintenance workload of earthing isolator, the possibility of omitting operation neutral point side single-phase earthing isolating switch simultaneously still exists.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of earthing device of Shunt Capacitor Unit is provided.The earthing device of described Shunt Capacitor Unit adopts an operating mechanism to finish the reliable ground of capacitor group, has guaranteed the reliability on capacitor winding ground, has improved the fail safe and the convenience of overhaul of the equipments.
Simultaneously, save the device fabrication resource, reduced operating cost.
In order to reach above-mentioned technique effect, the utility model provides a kind of earthing device of Shunt Capacitor Unit, described Shunt Capacitor Unit is installed one group of four utmost point earthing isolator, three utmost points in described four utmost point earthing isolators are connected with described Shunt Capacitor Unit inlet wire side, and another utmost point is connected with described Shunt Capacitor Unit neutral point.
Three utmost points in described four utmost point earthing isolators are connected with described Shunt Capacitor Unit inlet wire side by hard conductor.
Another utmost point in described four utmost point earthing isolators is connected with described Shunt Capacitor Unit neutral point by hard conductor or cable.
Implement the utility model embodiment, have following beneficial effect:
The utility model adopts a kind of earthing device of Shunt Capacitor Unit, described Shunt Capacitor Unit is installed one group of four utmost point earthing isolator, promptly original three-phase earthing isolator is added the single-phase earthing isolating switch and directly merge into four utmost point earthing isolators, three utmost points in described four utmost point earthing isolators are connected with described Shunt Capacitor Unit inlet wire side, and another utmost point is connected with described Shunt Capacitor Unit neutral point.Because four utmost point earthing isolators have only an operating mechanism, when it was operated, four utmost point synchronization actions of earthing isolator made the inlet wire side of capacitor group and neutral point side realize synchronous ground connection operation.Adopt an operating mechanism to finish the reliable ground of capacitor group, guaranteed the reliability on capacitor winding ground, improved the fail safe and the convenience of overhaul of the equipments.
The utility model adopts a kind of earthing device of Shunt Capacitor Unit, these two grounding apparatuss of single-phase earthing isolating switch of three-phase earthing isolator and neutral point side are merged into one four utmost point earthing isolator equipment, saved the device fabrication resource, improve the convenience of daily tour of operations staff and maintenance greatly, reduced operating cost.
Description of drawings
Fig. 1 is the structural representation of the earthing device 1 of existing a kind of Shunt Capacitor Unit;
Fig. 2 is the structural representation of the earthing device 2 of existing another kind of Shunt Capacitor Unit;
Fig. 3 is the structural representation of the earthing device 3 of a kind of Shunt Capacitor Unit of the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 3 is the structural representation of the earthing device 3 of a kind of Shunt Capacitor Unit of the utility model.
As shown in Figure 3, the earthing device 3 of described Shunt Capacitor Unit comprises: four utmost point earthing isolator QE3, the interior fuse FU, the shunt capacitor C that connect with neutral point 31 earth connections.
Three utmost points among described four utmost point earthing isolator QE3 are connected with described Shunt Capacitor Unit C inlet wire side, and another utmost point is connected with described Shunt Capacitor Unit C neutral point 31.
Need to prove, in four utmost point earthing isolator QE3, three very three line interface, i.e. three fire-wire interfaces mutually that connect with described Shunt Capacitor Unit C inlet wire side; Another that is connected with Shunt Capacitor Unit C neutral point 31 be the zero line interface very.
Described Shunt Capacitor Unit C neutral point 31 is connected with the earth zero potential by the direct ground connection of zero line, and described neutral ground line is a working grounding cable, is again the protection zero line.
Four utmost point earthing isolator QE3 directly merge into the single-phase earthing isolating switch QE2 of three-phase earthing isolator QE1 and neutral point 31 sides has only an operating mechanism isolating switch, when it is operated, four utmost point synchronization actions of earthing isolator make the inlet wire side of capacitor group and neutral point 31 sides realize synchronous ground connection operation.
Need to prove that further three utmost points among described four utmost point earthing isolator QE3 are connected with described Shunt Capacitor Unit C inlet wire side by hard conductor; Another utmost point among described four utmost point earthing isolator QE3 is connected with described Shunt Capacitor Unit C neutral point 31 by hard conductor or cable.
Implement the utility model embodiment, have following beneficial effect:
The utility model adopts a kind of earthing device 3 of Shunt Capacitor Unit, described Shunt Capacitor Unit C installs one group of four utmost point earthing isolator QE3, promptly the single-phase earthing isolating switch QE2 that original three-phase earthing isolator QE1 is added neutral point 31 sides directly merges into four utmost point earthing isolator QE3, three utmost points among described four utmost point earthing isolator QE3 are connected with described Shunt Capacitor Unit C inlet wire side, and another utmost point is connected with described Shunt Capacitor Unit C neutral point 31.Because four utmost point earthing isolator QE3 have only an operating mechanism, when it was operated, four utmost point synchronization actions of earthing isolator made the inlet wire side of capacitor group C and neutral point 31 sides realize synchronous ground connection operation.Adopt an operating mechanism to finish the reliable ground of capacitor group C, guaranteed the reliability of capacitor group C ground connection, improved the fail safe and the convenience of overhaul of the equipments.
The utility model adopts a kind of earthing device 3 of Shunt Capacitor Unit, these two grounding apparatuss of single-phase earthing isolating switch QE2 of three-phase earthing isolator QE1 and neutral point 31 sides are merged into one four utmost point earthing isolator QE3 equipment, saved the device fabrication resource, improve the convenience of daily tour of operations staff and maintenance greatly, reduced operating cost.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (3)
1. the earthing device of a Shunt Capacitor Unit, it is characterized in that, described Shunt Capacitor Unit is installed one group of four utmost point earthing isolator, and three utmost points in described four utmost point earthing isolators are connected with described Shunt Capacitor Unit inlet wire side, and another utmost point is connected with described Shunt Capacitor Unit neutral point.
2. the earthing device of Shunt Capacitor Unit as claimed in claim 1 is characterized in that, three utmost points in described four utmost point earthing isolators are connected with described Shunt Capacitor Unit inlet wire side by hard conductor.
3. the earthing device of Shunt Capacitor Unit as claimed in claim 1 is characterized in that, another utmost point in described four utmost point earthing isolators is connected with described Shunt Capacitor Unit neutral point by hard conductor or cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670128U CN202013813U (en) | 2011-03-15 | 2011-03-15 | Grounding device for parallel capacitor bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670128U CN202013813U (en) | 2011-03-15 | 2011-03-15 | Grounding device for parallel capacitor bank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013813U true CN202013813U (en) | 2011-10-19 |
Family
ID=44784428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200670128U Expired - Lifetime CN202013813U (en) | 2011-03-15 | 2011-03-15 | Grounding device for parallel capacitor bank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921167A (en) * | 2017-03-02 | 2017-07-04 | 安徽伊格瑞德电气设备有限公司 | A kind of self-shield series compensation device based on high energy type fuse FU |
-
2011
- 2011-03-15 CN CN2011200670128U patent/CN202013813U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921167A (en) * | 2017-03-02 | 2017-07-04 | 安徽伊格瑞德电气设备有限公司 | A kind of self-shield series compensation device based on high energy type fuse FU |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |