CN205542294U - Water -cooling dry -type testing transformer device - Google Patents
Water -cooling dry -type testing transformer device Download PDFInfo
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- CN205542294U CN205542294U CN201620103319.1U CN201620103319U CN205542294U CN 205542294 U CN205542294 U CN 205542294U CN 201620103319 U CN201620103319 U CN 201620103319U CN 205542294 U CN205542294 U CN 205542294U
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- voltage coil
- cooling water
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- water pipe
- testing transformer
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Abstract
The utility model discloses a water -cooling dry -type testing transformer device, including the testing transformer casing, be provided with the iron core in the testing transformer casing, high -pressure coil and low voltage coil, high -pressure coil and low voltage coil be coaxial setting on the iron core, high -pressure coil is located the low voltage coil outside, still include the water cooling plant, the water cooling plant includes condenser tube, coolant tank and install the cooling water pump on condenser tube, condenser tube's water inlet and delivery port all are connected with coolant tank, condenser tube's the at least and low voltage coil contact in middle part, condenser tube and low voltage coil contact segment are the heliciform, its number of turns and low voltage coil number of turns phase -match, condenser tube and low voltage coil encircle the iron core side by side. The utility model has the advantages of the cooling effect is good, novel structure.
Description
Technical field
This utility model belongs to testing transformer technical field, relates to the chiller of dry-type transformer, specially water-cooled dry testing transformer device.
Background technology
Testing transformer, refers to provide high-tension transformator for ac voltage withstanding test.It is characterized in that output voltage is high, capacity is less, Transformer Short Circuit Impedance is very big, no-load voltage ratio is the biggest.
Owing to testing transformer needs to use in testing ground, it is necessary to structure compact to design, on the premise of meeting capacity of experiment, reduce volume, it is simple to transport and in-site installation as far as possible.For testing transformer this when working long hours coil heating amount big, coil easily burns, and causes testing transformer to damage.
The heat operationally produced for guarantee test transformator does not affect normally working of transformator, just need to increase cooling system on the transformer.Water cooling mode is one of type of cooling that transformator is the most general in the market, configure water-cooling apparatus the most on the transformer, this kind of mode is typically all and realizes with by the primary of cincture on iron core or the water circulation outside secondary hollow spool, water-cooling apparatus is placed on the outside of coil, the mode of this Local cooling can only cool down the temperature on surface, can not cool down the temperature of inside, the heat exchange area between chiller and coil is less, it is impossible to realize good cooling effect.
Utility model content
Technical problem to be solved in the utility model is for the above-mentioned state of the art, and provides the water-cooled dry testing transformer device of a kind of good cooling results, novel structure.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is:
Water-cooled dry testing transformer device, including testing transformer housing, arrange cored in testing transformer housing, high-tension coil and low-voltage coil, high-tension coil and low-voltage coil are coaxially disposed on iron core, high-tension coil is positioned at outside low-voltage coil, also include water cooling plant, water cooling plant includes cooling water pipe, cooling water tank and the cooling water pump being arranged on cooling water pipe, the water inlet of cooling water pipe is all connected with cooling water tank with outlet, the middle part of cooling water pipe contacts with low-voltage coil, cooling water pipe is with low-voltage coil contact portion in the shape of a spiral, its number of turn matches with the low-voltage coil number of turn, cooling water pipe and low-voltage coil wound core side by side.
For optimizing technique scheme, the concrete measure taked also includes:
Above-mentioned cooling water pipe is insulating heat-conductive pipe, and the coolant of employing is pure water.
Above-mentioned low-voltage coil uses flat type copper wire.
Offering draw-in groove on the tube wall of above-mentioned cooling water pipe, the shape of draw-in groove is suitable with the shape of low-voltage coil, and low-voltage coil can embed in draw-in groove and make low-voltage coil integrally be around on iron core with cooling water pipe formation.
It is provided with insulating barrier between above-mentioned high-tension coil and low-voltage coil.
Above-mentioned draw-in groove is arranged at the cooling water pipe side towards iron core, and low-voltage coil is between cooling water pipe and iron core, and when fitting tightly between cooling water pipe adjacent turn, cooling water pipe substitutes insulating barrier.
Insulating gas is filled in above-mentioned testing transformer housing.
The cross section of the aperture position of above-mentioned draw-in groove is slightly smaller than low-voltage coil cross section, when low-voltage coil embeds draw-in groove, and low-voltage coil and cooling water pipe interference fit.
Compared with prior art, this utility model is by cooling water pipe and the mutual side-by-side contact of low-voltage coil, iron core it is wound around again after forming one, the problem solving the low-voltage coil heat radiation difficulty being positioned at inner side, considerably increase the heat exchange area between chiller and coil, cooling radiating effect is greatly improved.For increasing low-voltage coil and cooling water pipe connectivity robustness, this utility model offers draw-in groove on the tube wall of cooling water pipe, and low-voltage coil can embed in draw-in groove and make low-voltage coil form one with cooling water pipe.Draw-in groove is positioned at the cooling water pipe side towards iron core, if cooling water pipe turn-to-turn gapless and cooling water pipe have certain thickness, can use directly as the insulating barrier between high and low pressure coil, simplify transformer device structure, and do not affect the insulating properties of transformator.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model testing transformer housing；
Fig. 2 is the schematic diagram of transformer coli winding；
Fig. 3 is the schematic diagram that cooling water pipe is wound on iron core；
Fig. 4 is the cooling water pipe schematic diagram towards the side of iron core；
Fig. 5 is the schematic diagram that low-voltage coil is fixed on cooling water pipe.
Reference therein is: testing transformer housing 1, iron core 2, high-tension coil 3, low-voltage coil 4, water cooling plant 5, cooling water pipe 51, draw-in groove 51a, cooling water tank 52, cooling water pump 53, insulating barrier 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Water-cooled dry testing transformer device of the present utility model, including testing transformer housing 1, iron core 2 it is provided with in testing transformer housing 1, high-tension coil 3 and low-voltage coil 4, high-tension coil 3 and low-voltage coil 4 are coaxially disposed on iron core 2, it is outside that high-tension coil 3 is positioned at low-voltage coil 4, also include water cooling plant 5, water cooling plant 5 includes cooling water pipe 51, cooling water tank 52 and the cooling water pump 53 being arranged on cooling water pipe 51, the water inlet of cooling water pipe 51 is all connected with cooling water tank 52 with outlet, the middle part of cooling water pipe 51 contacts with low-voltage coil 4, it is characterized in that: cooling water pipe 51 is with low-voltage coil 4 contact portion in the shape of a spiral, its number of turn matches with low-voltage coil 4 number of turn, cooling water pipe 51 and low-voltage coil 4 wound core 2 side by side.
In embodiment, cooling water pipe 51 is insulating heat-conductive pipe, and the coolant of employing is pure water.
In embodiment, low-voltage coil 4 uses flat type copper wire.
In embodiment, the tube wall of cooling water pipe 51 offering draw-in groove 51a, the shape of draw-in groove 51a is suitable with the shape of low-voltage coil 4, and low-voltage coil 4 can embed and make low-voltage coil 4 and cooling water pipe 51 be formed in draw-in groove 51a to be integrally around on iron core 2.
In embodiment, between high-tension coil 3 and low-voltage coil 4, it is provided with insulating barrier 6.
In embodiment, draw-in groove 51a is arranged at the cooling water pipe 51 side towards iron core 2, and low-voltage coil 4 is between cooling water pipe 51 and iron core 2, and when fitting tightly between cooling water pipe 51 adjacent turn, cooling water pipe 51 substitutes insulating barrier 6.
In embodiment, in testing transformer housing 1, fill insulating gas.
In embodiment, the cross section of the aperture position of draw-in groove 51a is slightly smaller than low-voltage coil 4 cross section, when low-voltage coil 4 embeds draw-in groove 51a, and low-voltage coil 4 and cooling water pipe 51 interference fit.
During installation test transformator, low-voltage coil 4 is embedded in the draw-in groove 51a of cooling water pipe 51, coil is made to be integrally forming with cooling water pipe 51, coiling low pressure winding on iron core 2 the most together, after winding low pressure winding, insulating barrier 6 is laid again outside low pressure winding, then with iron core 2 for axle coiling high pressure winding on insulating barrier 6, after transformer coli winding, it is filled with insulating gas in testing transformer housing 1, when testing transformer operates, cooling water pump is entered cooling water pipe 51 by cooling water pump 53, it is achieved cooling water circulation, and cooling water pipe 51 is continuously the cooling of low pressure winding.The coolant that this utility model testing transformer uses is pure water, fills insulating gas, can optionally use other insulating and cooling liquid and fill other dielectrics in testing transformer housing.
Below being only preferred implementation of the present utility model, protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, should be regarded as protection domain of the present utility model.
Claims (8)
- null1. water-cooled dry testing transformer device，Including testing transformer housing (1)，It is provided with iron core (2) in described testing transformer housing (1)、High-tension coil (3) and low-voltage coil (4)，Described high-tension coil (3) and low-voltage coil (4) are coaxially disposed on iron core (2)，It is outside that described high-tension coil (3) is positioned at low-voltage coil (4)，It is characterized in that: also include water cooling plant (5)，Described water cooling plant (5) includes cooling water pipe (51)、Cooling water tank (52) and the cooling water pump (53) being arranged on cooling water pipe (51)，The water inlet of described cooling water pipe (51) is all connected with cooling water tank (52) with outlet，The middle part of described cooling water pipe (51) contacts with low-voltage coil (4)，Described cooling water pipe (51) is with low-voltage coil (4) contact portion in the shape of a spiral，Its number of turn matches with low-voltage coil (4) number of turn，Described cooling water pipe (51) and low-voltage coil (4) wound core side by side (2).
- Water-cooled dry testing transformer device the most according to claim 1, is characterized in that: described cooling water pipe (51) is insulating heat-conductive pipe, and the coolant of employing is pure water.
- Water-cooled dry testing transformer device the most according to claim 2, is characterized in that: described low-voltage coil (4) uses flat type copper wire.
- Water-cooled dry testing transformer device the most according to claim 3, it is characterized in that: on the tube wall of described cooling water pipe (51), offer draw-in groove (51a), the shape of described draw-in groove (51a) is suitable with the shape of low-voltage coil (4), and described low-voltage coil (4) can embed and make low-voltage coil (4) integrally be around on iron core (2) with cooling water pipe (51) formation in draw-in groove (51a).
- Water-cooled dry testing transformer device the most according to claim 4, is characterized in that: be provided with insulating barrier (6) between described high-tension coil (3) and low-voltage coil (4).
- Water-cooled dry testing transformer device the most according to claim 5, it is characterized in that: described draw-in groove (51a) is arranged at the cooling water pipe (51) side towards iron core (2), described low-voltage coil (4) is positioned between cooling water pipe (51) and iron core (2), when fitting tightly between described cooling water pipe (51) adjacent turn, described cooling water pipe (51) substitutes insulating barrier (6).
- Water-cooled dry testing transformer device the most according to claim 6, is characterized in that: fill insulating gas in described testing transformer housing (1).
- Water-cooled dry testing transformer device the most according to claim 7, it is characterized in that: the cross section of the aperture position of described draw-in groove (51a) is slightly smaller than low-voltage coil (4) cross section, when low-voltage coil (4) embeds draw-in groove (51a), described low-voltage coil (4) and cooling water pipe (51) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103319.1U CN205542294U (en) | 2016-02-02 | 2016-02-02 | Water -cooling dry -type testing transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103319.1U CN205542294U (en) | 2016-02-02 | 2016-02-02 | Water -cooling dry -type testing transformer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205542294U true CN205542294U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620103319.1U Active CN205542294U (en) | 2016-02-02 | 2016-02-02 | Water -cooling dry -type testing transformer device |
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| CN (1) | CN205542294U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513757A (en) * | 2016-02-02 | 2016-04-20 | 邓福亮 | Water cooling dry-type test transformer |
| CN107068338A (en) * | 2017-02-22 | 2017-08-18 | 江苏凡高电气有限公司 | A kind of inner side circulating cooling epoxy cast dry transformer |
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
-
2016
- 2016-02-02 CN CN201620103319.1U patent/CN205542294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513757A (en) * | 2016-02-02 | 2016-04-20 | 邓福亮 | Water cooling dry-type test transformer |
| CN107068338A (en) * | 2017-02-22 | 2017-08-18 | 江苏凡高电气有限公司 | A kind of inner side circulating cooling epoxy cast dry transformer |
| CN110265938A (en) * | 2019-06-04 | 2019-09-20 | 国网浙江省电力有限公司 | It is a kind of to use soft tube winding and the hydronic cable transfer capability improving system of water |
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| GR01 | Patent grant |