CN201846011U - Double-partition electric arc type trolley of voltage transformer - Google Patents
Double-partition electric arc type trolley of voltage transformer Download PDFInfo
- Publication number
- CN201846011U CN201846011U CN2010205089470U CN201020508947U CN201846011U CN 201846011 U CN201846011 U CN 201846011U CN 2010205089470 U CN2010205089470 U CN 2010205089470U CN 201020508947 U CN201020508947 U CN 201020508947U CN 201846011 U CN201846011 U CN 201846011U
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- CN
- China
- Prior art keywords
- electric arc
- voltage transformer
- arc type
- insulating
- trolley
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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 - Fee Related
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Abstract
The utility model discloses a double-partition electric arc type trolley of a voltage transformer. The trolley comprises a trolley body; a plurality of groups of moving contacts are arranged on the trolley body; and a high-voltage fuse is arranged between two fixed connecting parts of the connecting bars of each group of the moving contacts; moreover, the two fixed connecting parts of the connecting bars of each group of the moving contacts are respectively provided with an insulating cover; the bottom part of the trolley body is provided with trundles; an insulating baffle is arranged between each adjacent the high-voltage fuses; and an insulating sleeve is sleeved and fixed between the two insulating covers of each group of the moving contacts. The trolley adopts the double partitions of the insulating baffles and the insulating sleeves so as to better play the significant role of separating the electric arc, then avoids two-phase or three-phase short circuit failures and guarantees the safety running of the equipment; meanwhile, the trolley also avoids the power failure loss, the equipment loss, the personnel injury and the like caused by the equipment failure and has obvious comprehensive benefits. The trolley is particularly applicable to the multi-thunder regions and regions with more systematic harmonic sources and has particularly obvious electric arc prevention effects.
Description
One. technical field: the utility model relates to a kind of voltage transformer dolly, particularly relates to a kind of dual partition electric arc type voltage transformer dolly.
Two. background technology: at present, the high-tension fuse of voltage transformer dolly (once insurance) is because spatial limitation, and phase spacing is nearer, reduces to 175mm by the ordinary tap cabinet greater than 270mm; Protective tube diameter (external diameter) is less, reduces to 24mm by original 50mm; The deficiency of its existence is:
(1), because spatial limitation, protective tube is as using the protective tube of original external diameter 50mm, phase spacing will further be contracted to 150mm, is unfavorable for that more electric arc cuts off.
(2), because protective tube diameter (external diameter) dwindles, cause inner arc-extinguishing medium quartz sand to reduce 70%---75%, cause its arc extinguishing ability seriously to descend; Also cause the insurance outer wall thickness to reduce 30% in addition, cause explosion-proof ability seriously to weaken.
(3), because the dwindling of phase spacing, just causing when causing electric arc very little has increased the accident odds by arc short-circuit, has a strong impact on the safe operation of equipment; In addition, protective tube arc extinguishing ability and explosion-proof ability seriously descend, and cause protective tube blast to occur under unusual, failure condition, its electric arc causes two-phase or three phase short circuit fault, cause equipment badly damaged, even cause the adjacent switch cabinet badly damaged, jeopardize equipment and personal safety.
Three. the content of utility model:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of dismounting reasonable in design, simple in structure, easy and electric arc to cut off effective dual partition electric arc type voltage transformer dolly.
The technical solution of the utility model is: a kind of dual partition electric arc type voltage transformer dolly, contain car body, many group moving contacts are installed on the described car body, be provided with high-tension fuse between two fixed connection places of each group moving contact connecting rod, and, two fixed connection places of each group moving contact connecting rod are respectively arranged with an insulating cover, the bottom of described car body is equipped with trundle, be provided with insulation barrier between the adjacent described high-tension fuse, and suit is fixed with insulating case between two insulating covers of described each group moving contact.
Described isolation baffle plate is installed on the front panel of described car body by fixed support.Described fixed support is an angle steel shape, and the one side panel is connected with described front panel by fixed screw, and the opposite side panel is connected with described insulation board by fixed screw.Described fixed support is made by steel, is perhaps made by aluminium.
The shape of cross section of each described insulating cover is a U-shaped, and suit is fixed a described insulating case on the same side side plate of corresponding two described insulating covers of each group moving contact.The two ends of described insulating case are connected with two described insulating cover secure fit respectively; Perhaps, the two ends of described insulating case are connected by insulated bolt with two described insulating covers respectively.Described insulating case cross section is oval, or is rectangle, or is the combination of above-mentioned shape.
The beneficial effects of the utility model are:
1, the utility model adopts the dual partition of insulation barrier and insulating case, can play the remarkable effect that cuts off electric arc better, and then avoided the generation of two-phase or three phase short circuit fault, guaranteed the safe operation of equipment, while is also avoided because of the loss of outage that equipment fault causes, equipment loss, personnel's injury etc., and economic benefit and social benefit are obvious.
2, the utility model insulation barrier is connected by fixed support and front panel are movable, easy accessibility, and the insulation barrier material is common, and cost is lower.
3, the utility model insulating case two ends and two insulating cover secure fit also can connect by insulated bolt, easy accessibility, and the insulating case material is common, and cost is lower.
4, the utility model is reasonable in design, simple in structure, and it is applied widely, especially is applicable to the former more area of area with more lightning activities and system harmonics, and the arc protection effect is obvious especially.
Four. description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is an end view of the present utility model;
Fig. 4 is a support bracket fastened structural representation among Fig. 1;
Fig. 5 is the structural representation of insulating case among Fig. 1.
Five. embodiment:
Embodiment one: referring to Fig. 1-Fig. 5, and among the figure, the 1-fixed support; The 2-fixed screw; The 3-insulation barrier; The 4-high-tension fuse; 5-high-tension fuse base; The 6-moving contact; The 7-insulating cover; The 8-front panel; The 9-trundle; The 10-insulator; The 11-bottom panel; The 12-conducting rod; 13-fixed support screw, the 14-insulating case.
Dual partition electric arc type voltage transformer dolly contains car body, many group moving contacts are installed on the car body, be provided with high-tension fuse 4 between two fixed connection places of each group moving contact connecting rod, and, two fixed connection places of each group moving contact connecting rod are respectively arranged with an insulating cover 7, the bottom of car body is equipped with trundle 9, is provided with insulation barrier 3 between the adjacent high-tension fuse 4.The coupling part shape of cross section of each insulating cover 7 is a U-shaped, and suit is fixed an insulating case 14 on the same side side plate of corresponding two insulating covers 7 of each group moving contact.The two ends of insulating case 14 are connected with two insulating cover 7 secure fit respectively.
In order to increase the constant intensity of insulation barrier 3, at each end of insulation barrier 3 two fixed supports are set respectively, two fixed supports insulation barrier 3 that is clamped.Every dolly only needs the insulating barrier 3 of two 5mm*280mm*450mm.Play the remarkable effect that cuts off electric arc after installing insulation barrier 3 additional, avoided the generation of two-phase or three phase short circuit fault.
Insulating case 14 cross sections are oval, or are rectangle, or are the combination of above-mentioned shape, determine as required.
Embodiment two: present embodiment and embodiment one are basic identical, and something in common does not repeat, and difference is: each end at insulation barrier only is provided with a fixed support, with simplified structure.The two ends of insulating case are fixed by insulated bolt with two insulating covers respectively.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. dual partition electric arc type voltage transformer dolly, contain car body, many group moving contacts are installed on the described car body, be provided with high-tension fuse between two fixed connection places of each group moving contact connecting rod, and, two fixed connection places of each group moving contact connecting rod are respectively arranged with an insulating cover, the bottom of described car body is equipped with trundle, it is characterized in that: be provided with insulation barrier between the adjacent described high-tension fuse, and suit is fixed with insulating case between two insulating covers of described each group moving contact.
2. dual partition electric arc type voltage transformer dolly according to claim 1, it is characterized in that: described isolation baffle plate is installed on the front panel of described car body by fixed support.
3. dual partition electric arc type voltage transformer dolly according to claim 2, it is characterized in that: described fixed support is an angle steel shape, the one side panel is connected with described front panel by fixed screw, and the opposite side panel is connected with described insulation board by fixed screw.
4. dual partition electric arc type voltage transformer dolly according to claim 3, it is characterized in that: described fixed support is made by steel, is perhaps made by aluminium.
5. dual partition electric arc type voltage transformer dolly according to claim 1, it is characterized in that: the shape of cross section of each described insulating cover is a U-shaped, and suit is fixed a described insulating case on the same side side plate of corresponding two described insulating covers of each group moving contact.
6. dual partition electric arc type voltage transformer dolly according to claim 5 is characterized in that: the two ends of described insulating case are connected with two described insulating cover secure fit respectively; Perhaps, the two ends of described insulating case are connected by insulated bolt with two described insulating covers respectively.
7. dual partition electric arc type voltage transformer dolly according to claim 6 is characterized in that: described insulating case cross section is ellipse, or is rectangle, or is the combination of above-mentioned shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205089470U CN201846011U (en) | 2010-08-30 | 2010-08-30 | Double-partition electric arc type trolley of voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205089470U CN201846011U (en) | 2010-08-30 | 2010-08-30 | Double-partition electric arc type trolley of voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846011U true CN201846011U (en) | 2011-05-25 |
Family
ID=44040887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205089470U Expired - Fee Related CN201846011U (en) | 2010-08-30 | 2010-08-30 | Double-partition electric arc type trolley of voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362522A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | High reliable separation cabinet device for voltage transformer of switch cabinet |
-
2010
- 2010-08-30 CN CN2010205089470U patent/CN201846011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362522A (en) * | 2014-11-20 | 2015-02-18 | 国家电网公司 | High reliable separation cabinet device for voltage transformer of switch cabinet |
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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: 20110525 Termination date: 20120830 |