CN201887352U - Grounding trolley for maintenance of high-voltage switch cabinet - Google Patents
Grounding trolley for maintenance of high-voltage switch cabinet Download PDFInfo
- Publication number
- CN201887352U CN201887352U CN2010206549310U CN201020654931U CN201887352U CN 201887352 U CN201887352 U CN 201887352U CN 2010206549310 U CN2010206549310 U CN 2010206549310U CN 201020654931 U CN201020654931 U CN 201020654931U CN 201887352 U CN201887352 U CN 201887352U
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- CN
- China
- Prior art keywords
- grounding
- display device
- trolley
- ground connection
- switch cabinet
- 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 - Lifetime
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Abstract
The utility model discloses a grounding trolley for maintenance of high-voltage switch cabinet, which comprises a trolley frame, a chassis truck, a movable contact and a contact arm. The grounding trolley is characterized in that the top of the trolley frame is provided with a high-voltage live display device having an electricity testing function, and the trolley frame is further provided with a grounding switch connected with a grounding switch operating shaft. By the aid of the technical scheme, on one hand, the high-voltage live display device is added so that the grounding trolley has the electricity testing function; and on the other hand, a bus is grounded by the aid of short circuit current closing capacity of the grounding switch. When a sensor and a high-voltage display fail (have electricity testing errors), the grounding switch is switched on while operators are not injured, and safety and reliability of the grounding trolley are enhanced greatly by the aid of coordination of the high-voltage live display device and the grounding switch.
Description
Technical field
The utility model relates to the high-tension switch cabinet field, specifically is a kind of high-tension switch cabinet maintenance ground connection dolly.
Background technology
Trolley type high voltage switch cabinet needs periodic inspection, and the maintainer enters in the charged interval, has potential safety hazard, for the sake of security, usually need to push the service position with a ground connection dolly earlier, be connected with the three-phase bus short circuit and with the earth, the maintainer just can enter.Must first electrical verification before existing ground connection dolly pushes, just can push the ground connection dolly then, complicated operation, very inconvenient, and also existing ground connection dolly is irrelevant closes ability, and its security reliability is relatively poor.
The defective of above-mentioned prior art make development a kind of can with bus fast and safely the ground connection dolly of ground connection seem very necessary.
The utility model content
The purpose of this utility model is exactly to overcome the defective that exists in the above-mentioned prior art, and providing a kind of can disposablely push, and electrical verification and ground connection can be finished simultaneously, increases the ground connection dolly of ground connection dolly making current ability function simultaneously.
In order to realize above-mentioned technique effect, the utility model has adopted following technical scheme:
High-tension switch cabinet maintenance ground connection dolly, comprise vehicle frame, chassis car, moving contact and contact arm, it is characterized in that, described vehicle frame top is provided with the high voltage display device with electroscope function, also be provided with earthed switch on the described vehicle frame, be connected with the earthed switch operating axis on the described earthed switch.
Described high voltage display device comprises transducer and high-voltage charge display device, and described transducer is arranged on the rear end of described contact arm.
Described chassis car front end is provided with the valve push and block.
Above-mentionedly be arranged so that ground connection dolly of the present utility model can disposablely push, and finishes electrical verification and ground connection simultaneously.
The utility model increases high voltage display device on the one hand by adopting technique scheme, makes the ground connection dolly have electroscope function; The ability of short circuit current is closed with busbar grounding in the pass that utilizes earthed switch to have on the other hand, and when transducer and high voltage display broke down (electrical verification mistake), the earthed switch that closes can not injure operating personnel yet.Both cooperations have improved the security reliability of ground connection dolly greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth execution mode of the present utility model.
As shown in Figure 1, the ground connection dolly is used in the novel high-tension switch cabinet maintenance of this experiment, comprises vehicle frame 1, chassis car 2, and moving contact 3, contact arm 4 and short circuit copper bar 5, described chassis car front end is provided with valve push and block 9.Vehicle frame 1 is provided with the high voltage display device that has electroscope function, comprise transducer 7 and high-voltage charge display device 8, transducer 7 is arranged on the rear end of described contact arm 4, and whether charged by signal being passed to high-voltage charge display device 8 if reacting high-pressure side for transducer 7; Simultaneously, also be provided with earthed switch 6 on the vehicle frame 1, do not have under the situation of electricity, can operate the earthed switch operating axis 601 that is connected with earthed switch 6 and carry out busbar grounding at the checking bus.
The ground connection dolly is pushed the service position, check whether high-voltage charge display device 8 three-phase indicator lights are shinny, as shinny explanation bus electricity arranged, at this moment must check whole electric power system, extinguish up to high-voltage charge display device 8 three-phase indicator lights; As the three-phase indicator light do not work the explanation bus do not have, at this moment can rotate close earthed switch 6 of earthed switch operating axis 601 and realize busbar groundings, because bus is ground connection, even transducer 7 and high voltage display 8 break down (electrical verification mistake), operating personnel's safety also can be protected.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. high-tension switch cabinet overhauls and uses the ground connection dolly, comprise vehicle frame, chassis car, moving contact and contact arm, it is characterized in that, described vehicle frame top is provided with the high voltage display device with electroscope function, also be provided with earthed switch on the described vehicle frame, be connected with the earthed switch operating axis on the described earthed switch.
2. the ground connection dolly is used in high-tension switch cabinet maintenance according to claim 1, it is characterized in that described high voltage display device comprises transducer and high-voltage charge display device, and described transducer is arranged on the rear end of described contact arm.
3. the ground connection dolly is used in high-tension switch cabinet maintenance according to claim 1, it is characterized in that described chassis car front end is provided with the valve push and block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206549310U CN201887352U (en) | 2010-12-13 | 2010-12-13 | Grounding trolley for maintenance of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206549310U CN201887352U (en) | 2010-12-13 | 2010-12-13 | Grounding trolley for maintenance of high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887352U true CN201887352U (en) | 2011-06-29 |
Family
ID=44184898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206549310U Expired - Lifetime CN201887352U (en) | 2010-12-13 | 2010-12-13 | Grounding trolley for maintenance of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201887352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938542A (en) * | 2012-12-06 | 2013-02-20 | 广东天富电气集团有限公司 | Grounding trolley for indoor metal armoring draw-out type switching equipment |
| CN104466759A (en) * | 2014-12-31 | 2015-03-25 | 宁夏力成电气集团有限公司 | Multifunctional live-part verification trolley used for switch cabinet |
| CN107732732A (en) * | 2017-10-19 | 2018-02-23 | 山西太钢不锈钢股份有限公司 | A kind of portable grounding test apparatus and test for ground method |
| CN108490378A (en) * | 2018-03-30 | 2018-09-04 | 国家电网公司 | A kind of electroscope experimental rig and its application method |
-
2010
- 2010-12-13 CN CN2010206549310U patent/CN201887352U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938542A (en) * | 2012-12-06 | 2013-02-20 | 广东天富电气集团有限公司 | Grounding trolley for indoor metal armoring draw-out type switching equipment |
| CN104466759A (en) * | 2014-12-31 | 2015-03-25 | 宁夏力成电气集团有限公司 | Multifunctional live-part verification trolley used for switch cabinet |
| CN107732732A (en) * | 2017-10-19 | 2018-02-23 | 山西太钢不锈钢股份有限公司 | A kind of portable grounding test apparatus and test for ground method |
| CN108490378A (en) * | 2018-03-30 | 2018-09-04 | 国家电网公司 | A kind of electroscope experimental rig and its application method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |