CN203300411U - Transformer externally hung on-load tap switch - Google Patents
Transformer externally hung on-load tap switch Download PDFInfo
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- CN203300411U CN203300411U CN2012205976134U CN201220597613U CN203300411U CN 203300411 U CN203300411 U CN 203300411U CN 2012205976134 U CN2012205976134 U CN 2012205976134U CN 201220597613 U CN201220597613 U CN 201220597613U CN 203300411 U CN203300411 U CN 203300411U
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- transformer
- tap selector
- riser
- switch
- tap
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Abstract
The utility model discloses a transformer externally hung on-load tap switch including a base plate, and a first vertical plate and a second vertical plate which are fixed at the two sides of the base plate. A change-over switch and a tap selector are arranged in the space formed by the base plate, the first vertical plate and the second vertical plate, the change-over switch and the tap selector are supported by the first vertical plate and the second vertical plate, a compound grooved pulley mechanism for controlling the movement of the change-over switch and the tap selector is arranged on the outer side of the first vertical plate, and a plurality of binding posts are arranged on the base plate. The change-over switch and the tap selector are parallelly arranged in the axial direction and are arranged in a triangular relation in the transverse direction, so that the transverse insulation distance between every two adjacent phases of the switch is greatly increased, and the design requirements on high voltage and heavy current of the switch are realized; meanwhile, the externally hung on-load tap switch provided can be adapted to the triangular connection of a transformer, and the triangular connection can be realized by only one externally hung on-load tap switch provided instead of three single-phase externally hung compound type on-load tap switches in the prior art.
Description
Technical field
The utility model relates to the on-load tap changers of transformers technical field, particularly the plug-in on load tap changer of a kind of transformer.
Background technology:
On load tap changer is to carry (namely not having a power failure) in the situation that transformer has, and, by changing the tapping of connection transformer, changes the turn ratio of the primary and secondary winding of transformer, thereby reaches the purpose that changes the transformer output voltage.
In conventional art, combined loaded tap-changer generally includes switching switch and a tap selector; Diverter switch is upper, tap selector under, middle by mechanical connection, insert in oil tank of transformer from transformer upper cover flange hole integral body.Diverter switch is generally a circle tube member, be sealed in own independent cylindrical shape grease chamber, tap selector is generally a cage construction, and some binding posts are arranged on it,, in order to connection corresponding to the transformer coil tap, directly be immersed in the dielectric of oil tank of transformer.
There is following shortcoming in this structure:
Transformer need be reserved the position of the switch, makes volume of transformer increase.Switch fault is repaired and regular maintenance bothers, and transformer needs integral body to drain the oil and hangs cover, cost of overhaul loss and accident potential.The diverter switch grease chamber, if any seepage or damage, can pollute transformer oil, causes greater loss and accident potential.
Existing external hanging type on load tap changer only has combined type, this combined switch is switching and selection function unification, exactly transition contact, arcing contact, transition resistance and main contact all are compounded on moving contact component,, by the rotation of switch spindle, once complete the action of transition and switching.Due to structure, combined switch often is only applicable to the on load tap changer of low voltage low capacity, is not suitable for the instructions for use of high voltage, large electric current.
Another existing combined loaded tap-changer, only have Y type connected mode, for the transformer of large-scale delta connection, need select 3 switches, and every control 1 phase wherein causes volume of transformer to increase, difficult wiring, and cost improves.
The utility model content
Technical problem to be solved in the utility model is intended to overcome the above-mentioned technical problem that existing on load tap changer exists, and provides a kind of transformer plug-in on load tap changer.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
The plug-in on load tap changer of a kind of transformer, comprise a base plate and the first riser and the second riser that are fixed on described base plate both sides, be furnished with diverter switch and tap selector in the space that consists of described base plate and first, second riser, described diverter switch and tap selector are take the first riser and the second riser as support; The composite slot wheel mechanism of controlling diverter switch and tap selector action is arranged in described the first riser arranged outside; Be provided with some binding posts on described base plate.
In a preferred embodiment of the present utility model, described shunting switch and described tap selector, be the axially parallel setting and arrange laterally being triangle relation, be upward diverter switch, lower is tap selector.
In a preferred embodiment of the present utility model, described tap selector comprises odd number group tap selector, even numbers group tap selector, and described odd number group tap selector, even numbers group tap selector are that axially parallel is arranged and minute are located at the described shunting switch left and right sides, below or both sides, up and down.
In a preferred embodiment of the present utility model, described composite slot wheel mechanism is being controlled the action of odd number group tap selector, even numbers group tap selector and diverter switch and the phase relation between their actions.
In a preferred embodiment of the present utility model, described the first riser and the second riser by metal material through the casting or be welded.
In a preferred embodiment of the present utility model, described the first riser and the second riser by insulating material through compression molding.
In a preferred embodiment of the present utility model, its transitional function is the vacuum tube contact assembly in described shunting switch.
, because the utility model has adopted above technical scheme, compared with prior art, have following significant advantage:
1, adopt above-mentioned tap selector and diverter switch are the axially parallel setting and laterally are being the triangle relation layout, can greatly increase the lateral isolation distance between each phase place of switch, realize the designing requirement of switch to high voltage, large electric current, realized that simultaneously the external hanging type on load tap changer can adapt to the transformer delta connection, make three single-phase plug-in combined load ratio bridging switchs of traditional need just can carry out △ and connect the function of layout, only utilize one of the utility model just can realize.
2, whole combined loaded tap-changer is hung on outside transformer outward, thereby has reduced the volume of transformer, simplifies winding wiring, reduces costs, and the maintenance of Convenient switch, need not transformer and drain the oil and hang cover during maintenance.
3, the switch grease chamber independently separates separately with oil tank of transformer, as switch, goes wrong, and can not pollute transformer oil.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the plug-in on load tap changer structural representation of the utility model transformer.
Fig. 2 is the plug-in on load tap changer cross sectional representation of the utility model transformer.
Fig. 3 is the plug-in on load tap changer elevational view of the utility model transformer.
Fig. 4 is the schematic diagram that the plug-in on load tap changer of the utility model transformer is seen obliquely upward.
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 the utility model.
Referring to Fig. 1 to Fig. 4, the plug-in on load tap changer of a kind of transformer that provides in figure, comprise a base plate 100 and two risers 210,220 that are fixed on base plate 100 both sides, be furnished with diverter switch 300 and tap selector in by base plate 100 and two risers 210,220 spaces that form, tap selector is divided into odd number group tap selector 410, even numbers group tap selector 420.Base plate 100 in order to transformer on flange connect, be hung on outward outside oil tank of transformer, form the external hanging type shunting switch.
The composite slot wheel mechanism 500 of controlling diverter switch and tap selector action is arranged in riser 210 arranged outside; Composite slot wheel mechanism 500 is being controlled the action of odd number group tap selector 410, even numbers group tap selector 420 and diverter switch 300 and the phase relation between their actions.
Two risers 210,220 can be by metal material through casting or be welded.Also can have by insulating material through compression molding.
In the plug-in on load tap changer of transformer, all binding posts 600 are installed on base plate 100, to facilitate with the winding in transformer, are connected.Its transitional function is the vacuum tube contact assembly in shunting switch 300.
Above content shows and has described basic principle of the present utility model, principal character and advantage of the present utility model.The personnel of the industry should understand; the utility model is not subjected to the restriction of above-mentioned example; that describes in above-mentioned example and explanation 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 will fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. plug-in on load tap changer of transformer, it is characterized in that, comprise a base plate and the first riser and the second riser that are fixed on described base plate both sides, be furnished with diverter switch and tap selector in the space that consists of described base plate and first, second riser, described diverter switch and tap selector are take the first riser and the second riser as support; The composite slot wheel mechanism of controlling diverter switch and tap selector action is arranged in described the first riser arranged outside; Be provided with some binding posts on described base plate.
2. the plug-in on load tap changer of transformer as claimed in claim 1, is characterized in that, described shunting switch and described tap selector, be the axially parallel setting and arrange laterally being triangle relation, and be upward diverter switch, lower is tap selector.
3. the plug-in on load tap changer of transformer as claimed in claim 2, it is characterized in that, described tap selector comprises odd number group tap selector, even numbers group tap selector, and described odd number group tap selector, even numbers group tap selector are that axially parallel is arranged and minute are located at the described shunting switch left and right sides, below or both sides, up and down.
4. the plug-in on load tap changer of transformer as claimed in claim 2, is characterized in that, described composite slot wheel mechanism is being controlled the action of odd number group tap selector, even numbers group tap selector and diverter switch and the phase relation between their actions.
5., as the plug-in on load tap changer of the described transformer of claim 1 to 4 any one claim, it is characterized in that, described the first riser and the second riser by metal material through the casting or be welded.
6., as the plug-in on load tap changer of the described transformer of claim 1 to 4 any one claim, it is characterized in that, described the first riser and the second riser by insulating material through compression molding.
7., as the plug-in on load tap changer of the described transformer of claim 1 to 4 any one claim, it is characterized in that, its transitional function is the vacuum tube contact assembly in described shunting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205976134U CN203300411U (en) | 2012-11-13 | 2012-11-13 | Transformer externally hung on-load tap switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205976134U CN203300411U (en) | 2012-11-13 | 2012-11-13 | Transformer externally hung on-load tap switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300411U true CN203300411U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205976134U Expired - Fee Related CN203300411U (en) | 2012-11-13 | 2012-11-13 | Transformer externally hung on-load tap switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811158A (en) * | 2012-11-13 | 2014-05-21 | 上海华明电力设备集团有限公司 | Externally-hung on-load tap-changer for transformer |
-
2012
- 2012-11-13 CN CN2012205976134U patent/CN203300411U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811158A (en) * | 2012-11-13 | 2014-05-21 | 上海华明电力设备集团有限公司 | Externally-hung on-load tap-changer for transformer |
| CN103811158B (en) * | 2012-11-13 | 2016-06-22 | 上海华明电力设备集团有限公司 | A kind of plug-in load ratio bridging switch of transformator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HUAMING HIGH-VOLTAGE SWITCHGEAR CO., LTD. Free format text: FORMER OWNER: HUAMING POWER EQUIPMENT MANUFACTURING CO., LTD., SHANGHAI Effective date: 20141030 Owner name: HUAMING POWER EQUIPMENT MANUFACTURING CO., LTD., S Free format text: FORMER OWNER: SHANGHAI HUAMING POWER EQUIPMENT GROUP CO., LTD. Effective date: 20141030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141030 Address after: 200333 Shanghai city Putuo District No. 977 in the same way Patentee after: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai Patentee after: Shanghai Huaming High-Voltage Switchgear Co., Ltd. Address before: 200333 Shanghai city Putuo District No. 977 in the same way Patentee before: Shanghai Huaming Power Equipment Group Co., Ltd. Patentee before: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20161113 |