CN2609155Y - Looped-network cabinet transformer side-linking earthing switch - Google Patents
Looped-network cabinet transformer side-linking earthing switch Download PDFInfo
- Publication number
- CN2609155Y CN2609155Y CN 03229496 CN03229496U CN2609155Y CN 2609155 Y CN2609155 Y CN 2609155Y CN 03229496 CN03229496 CN 03229496 CN 03229496 U CN03229496 U CN 03229496U CN 2609155 Y CN2609155 Y CN 2609155Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- disconnecting link
- ground connection
- connection disconnecting
- ground disconnecting
- 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.)
- Expired - Fee Related
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a ring main unit transformer side linked ground switch, which comprises a fuse, a ground disconnecting link contacting the top of the fuse and a pressure spring supplying power to the ground disconnecting link. The utility model is characterized in that a lower ground disconnecting link contacts the bottom of the fuse; a lower connecting lever which is connected with the rotary center of the ground disconnecting link and can move up and down; the other end of the lower connecting lever is connected with a pull rod which can move up and down; the other end of the pull rod is connected with a connecting bar through the upper lever; the rotary center of the lower ground disconnecting link is fixed on a base; the power source of the connecting bar is the pressure spring supplying power to the ground disconnecting link. The utility model has the advantages of avoiding the possibility of the inverse power transmission caused by the ground disconnecting only arranged at the top head of the existing fuse instead of at the bottom head of the existing fuse, examining reliable grounding contact, realizing the simultaneous grounding of the two ends of the fuse when repairing and maintaining the fuse, and guaranteeing safety and reliability.
Description
One, technical field:
The utility model relates to a kind of earthed switch, particularly discloses a kind of ring main unit transformer side interlock earthed switch.
Two, background technology:
HXGN6-12 sulphur hexafloride circuit breaker cabinet is a three-phase alternating current 50HZ indoor high voltage switchgear; be used for the following switching of 12kV ring network power supply or biradial power supply and 630A rated current in one's power secondary transformer station, terminal temperature difference station as the distribution and the protective device of electric energy; be specially adapted to protect transformer and motor; along with city net is built continuous development with urban network restructuring, the user has all proposed requirements at the higher level to the technical grade of product, novelty, aspect such as non-maintaining, cheap.This cabinet because transformer side does not have earthed switch, causes equipment must manually articulate earth connection in the maintenance process when ground state in actual motion, cause equipment operation like this, safeguard dangerous, unreliable.
Three, summary of the invention:
Technical problem to be solved in the utility model is: propose a kind of ring main unit transformer side interlock earthed switch that overcomes above-mentioned defective, maintenance, maintenance safe.
The utility model is to realize like this, it comprise fuse, with fuse on end in contact the ground connection disconnecting link and the compression spring of power is provided to the ground connection disconnecting link, it is characterized in that: also have with fuse under the following ground connection disconnecting link of end in contact, a following connecting lever that moves up and down links to each other with following ground connection disconnecting link center of rotation, the other end of the following connecting lever pull bar that moves up and down that links to each other, the other end of pull bar also connects a connecting rod by last connecting lever; Following ground connection disconnecting link center of rotation is fixed on the pedestal; The power source of connecting rod is for providing the compression spring of power to the ground connection disconnecting link.
The utility model all is equipped with earthed switch and reaches the contact of earth state simultaneously owing to the fuse two ends, have only the fuse upper end to have the ground connection disconnecting link before having avoided, the fuse lower end does not produce the possibility of sending electricity with the ground connection disconnecting link, and can observe reliable earth point, realized having brought safe and reliable assurance maintenance, fuse two ends ground connection simultaneously when safeguarding.
Four, description of drawings:
Accompanying drawing structural representation of the present utility model
Wherein: ground connection disconnecting link 9-pull bar under the connecting lever 2-pin 3-pad 5-nut 6-packing ring 7-spring washer 8-under the 1-
The last connecting lever 11-of 10-connecting rod 12-conductive plate 13-static contact seat 14-housing 15-fuse housing
Five, embodiment:
Referring to accompanying drawing, for HXGN6 ring main unit transformer side interlock earthed switch, because former switch cubicle fuse lower end does not have the ground connection disconnecting link, size is smaller, if the electric property that a ground connection cutter can influence former cabinet is installed, need on original basis, to increase the degree of depth of 50mm.Operating process: when gate-dividing state, connecting rod 11 moves upward, connecting lever 10 rotates in the drive, last connecting lever 10 is centered around center of rotation on the center line of static contact seat 13 and rotates and drive pull bar 9 and move downward, connecting lever 1 rotated under pull bar 9 moved downward and drives, following ground connection disconnecting link 8 rotates simultaneously with following connecting lever 1, contact by the static contact seat 13 that conductive plate 12 is fixed on the fuse housing 15 with the fuse lower end, make down ground connection disconnecting link 8 become "on" position by original gate-dividing state, because the power resources of fuse lower end ground connection disconnecting link provide for fuse upper end ground connection disconnecting link spring, so the ground connection of also having finished the fuse upper end simultaneously.
Claims (3)
1, a kind of ring main unit transformer side interlock earthed switch, comprise fuse, with fuse on end in contact the ground connection disconnecting link and the compression spring of power is provided to the ground connection disconnecting link, it is characterized in that: also have with fuse under the following ground connection disconnecting link of end in contact, a following connecting lever that moves up and down links to each other with following ground connection disconnecting link center of rotation, the other end of the following connecting lever pull bar that moves up and down that links to each other, the other end of pull bar also connects a connecting rod by last connecting lever; Following ground connection disconnecting link center of rotation is fixed on the pedestal; The power source of connecting rod is for providing the compression spring of power to the ground connection disconnecting link.
2, ring main unit transformer side interlock earthed switch according to claim 1, it is characterized in that: there is a static contact seat that contacts with following ground connection disconnecting link the fuse lower end, and static contact seat is fixed on the fuse housing by conductive plate.
3, ring main unit transformer side interlock earthed switch according to claim 2, it is characterized in that: the center of rotation that goes up connecting lever is positioned on the center line of static contact seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229496 CN2609155Y (en) | 2003-03-18 | 2003-03-18 | Looped-network cabinet transformer side-linking earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229496 CN2609155Y (en) | 2003-03-18 | 2003-03-18 | Looped-network cabinet transformer side-linking earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2609155Y true CN2609155Y (en) | 2004-03-31 |
Family
ID=34164905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03229496 Expired - Fee Related CN2609155Y (en) | 2003-03-18 | 2003-03-18 | Looped-network cabinet transformer side-linking earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2609155Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167341A (en) * | 2014-07-21 | 2014-11-26 | 杨明 | Solid insulating ring main unit fuse with one-shaft double-grounding interlocking device |
| CN110137021A (en) * | 2018-02-09 | 2019-08-16 | 工业连结与解决方案有限责任公司 | Voltage transformer system including transformer tractor |
-
2003
- 2003-03-18 CN CN 03229496 patent/CN2609155Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167341A (en) * | 2014-07-21 | 2014-11-26 | 杨明 | Solid insulating ring main unit fuse with one-shaft double-grounding interlocking device |
| CN104167341B (en) * | 2014-07-21 | 2017-04-19 | 杨明 | Solid insulating ring main unit fuse with one-shaft double-grounding interlocking device |
| CN110137021A (en) * | 2018-02-09 | 2019-08-16 | 工业连结与解决方案有限责任公司 | Voltage transformer system including transformer tractor |
| CN110137021B (en) * | 2018-02-09 | 2024-05-03 | Abb瑞士股份有限公司 | Transformer system including a transformer tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040331 Termination date: 20100318 |