CN102315007A - Single-phase ultra-high-capacity nuclear power station transformer - Google Patents
Single-phase ultra-high-capacity nuclear power station transformer Download PDFInfo
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- CN102315007A CN102315007A CN2010102137034A CN201010213703A CN102315007A CN 102315007 A CN102315007 A CN 102315007A CN 2010102137034 A CN2010102137034 A CN 2010102137034A CN 201010213703 A CN201010213703 A CN 201010213703A CN 102315007 A CN102315007 A CN 102315007A
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Abstract
The invention relates to a single-phase ultra-high-capacity generator transformer. The single-phase ultra-high-capacity generator transformer is provided with high-voltage bushings, low-voltage bushings, high-voltage neutral point bushings, an oil storage cabinet, an upper oil-saving tank, a lower oil-saving tank, cooling devices and a no-load switch; each of the upper oil-saving tank and the lower oil-saving tank is internally provided with a single-phase four-column iron core structure; a high-voltage winding and a low-voltage winding are respectively sheathed on two main column iron cores of each single-phase four-column iron core, and the high-voltage winding and the low-voltage winding of two main columns of the iron core are connected in parallel; the outlet heads of the low-voltage windings of the two main columns are arranged at the upper ends and are connected by copper bars to form a low-voltage dual-column parallel connection structure; the oil storage cabinet is arranged above the upper oil-saving tank at the side opposite to the high-voltage bushings; the cooling devices are arranged at the outer sides of one sides of the upper oil-saving tank and the lower oil-saving tank, which are provided with the high-voltage bushings and the high-voltage neutral point bushings, and are parallel to the direction of the long axis of the transformer; and the no-load switch is arranged at the low-voltage side of the transformer. The single-phase ultra-high-capacity generator transformer provided by the invention has the advantages of compact whole structure, reduced outer limit size, low loss, low noise and good shielding effect, and the partial overheat is prevented effectively; meanwhile, the support structure of the oil storage cabinet is more reasonable.
Description
Technical field
The present invention relates to technical field of transformer manufacturing, specifically a kind of single-phase vast capacity generator transformer that is used for large nuclear power station.
Background technology
State-of-the-art in the world third generation nuclear power technology France EPR1000 technology increasingly mature is applied on the grassroot project of nuclear power station gradually.Also do not adopt at present the nuclear power station operational performance of this kind technology in the world, that has only this kind of employing technology is building nuclear power station.The whole world has only China, France, Finland to adopt French EPR1000 technology at three nuclear power stations building.Because the EPR1000 nuclear power technology of France reaches 1,750,000 kW at the unit energy output, than two generation nuclear power technology unit energy output 1,000,000 kW tangible increase is arranged, therefore supporting with it single-phase generator transformer capacity also rises to 700MVA by original 420MVA.Therefore single-phase vast capacity (700MVA/500kV and more than) transformer exploitation, to be applied in also be first in the world.
China has welcome the new period of greatly developing the nuclear power cause at present, the whole electric power installed capacitys of Chinese nuclear power generation in 20 years of future, and its proportion will account for less than 2% from present national generator capacity and bring up to 5%.Build the cumulative year after year of quantity along with Chinese civilian nuclear power plant; Safely, reliably, the demand of the single-phase used in nuclear power station generator transformer of vast capacity is also increasing; Therefore the exploitation of single-phase ultra-large capacity transformer, succeed in developing, the development that promotes Chinese nuclear power cause production domesticization greatly.And maturation manufacturing, the running technology of domestic and international single-phase 700MVA/500kV transformer do not appear in the newspapers as yet.
Summary of the invention
To the above-mentioned weak point that exists in the prior art, the technical problem that the present invention will solve provides a kind of safe and reliable single-phase vast capacity used in nuclear power station transformer.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of single-phase vast capacity generator transformer of the present invention; Have bushing, low-tension bushing, high pressure neutral bushing, oil conservator, go up fuel-economizing case, lower oil tank, cooling device and no load switch; Single-phase four post core constructions are set in last fuel-economizing case and the lower oil tank; Be with the high and low pressure winding respectively on the two principal post iron cores of single-phase four posts iron core, two principal post high and low pressure windings unshakable in one's determination are connected in parallel; Two principal post low pressure windings are lifted one's head all in the upper end, are connected to form low pressure twin columns parallel-connection structure through copper bar;
Bushing is directly vertically drawn from high pressure winding middle part; The high pressure neutral bushing is positioned at the high-pressure side near oil conservator, and the high pressure neutral bushing is vertically drawn directly and is connected with the neutral point lead-in wire; Low-tension bushing is positioned at the low-pressure side of fuel-economizing case, and low-tension bushing is directly lifted one's head the low-voltage lead of drawing with the low pressure winding and is connected;
Oil conservator is positioned at the fuel-economizing case top opposite side relative with bushing, extends perpendicular to the transformer long axis direction and outside prolonging axially;
The cooling device centralized arrangement is in the outside that last fuel-economizing case and lower oil tank have bushing and high pressure neutral bushing one side, and is parallel with the transformer long axis direction;
After low-tension bushing is drawn from low-voltage lead, link to each other with outer kernel plant generator unit;
No load switch is positioned at the low-pressure side of transformer, and its patchboard is connected to the tap pressure regulation lead-in wire that the pressure regulation section in the high pressure winding is drawn in low-pressure side.
Said single-phase four rod structures are by two principal posts unshakable in one's determination, two other posts, two last yokes and four single-phase transformer closed magnetic circuits that return yoke constitutes.
Said single-phase four post iron cores have upper and lower folder, upper and lower folder web, are connected with upper and lower folder magnetic screen through connector respectively on the upper and lower folder web, and the upper clamping piece outer surface is coated with copper shield, and the upper clamping piece magnetic screen is fixed on the copper shield.
Respectively draw upper and lower two-way pressure regulation lead-in wire in two principal post coils unshakable in one's determination, totally four pass lines are connected on four patchboards of no load switch.
It is parallel adjacent that two of low pressure winding lift one's head, and electric current equates, and is in the opposite direction.
Said low-voltage lead adopts the single-phase electricity shielding construction, comprises the low pressure seat that raises, and low pressure raises and the electric screen net is installed in the seat, and two low-voltage terminals all insert two low pressure and raise in the seat, and is drawn by the low pressure seat top that raises.
Said low pressure rising seat is a cylinder mode; The upper end of its inwall and upper cover plate Joint; The lower end is connected with lower flange; Low pressure raises on the inwall of seat and the bottom surface of upper cover plate is provided with gauze screen, and low-voltage terminal passes upper cover plate, is fixed with low-tension bushing and enclosed busbar flange at the upper surface of upper cover plate; At a low pressure rising seat underrun flange lower cover is installed removably.
Establish reinforcement iron on the said lower oil tank, strengthen removably being equipped with on the iron transportation shoulder seat.
The present invention has following beneficial effect and advantage:
1. the present invention directly vertically draws the 500kV high-voltage terminal sleeve pipe of transformer from the coil middle part, and it is relative with the 500kV sleeve pipe that oil conservator is positioned at the left side of transformer body fuel tank; Increased the bushing distance to the ground; Both can guarantee the external insulation distance, and make the transformer integral arrangement compact again, and dwindle transformer and limit size outward, loss is low, noise is low, shield effectiveness is good, prevented local overheating effectively, makes the supporting construction of oil conservator more reasonable simultaneously.
The present invention on the core clamping web through two-way bolt affixed magnetic screen, can make leakage field along silicon steel sheet rolling direction walking, and most of leakage field is introduced main flux, the loss that leakage field produces reduces significantly; Simultaneously be coated with copper shield, in the leakage field reflected back fuel tank that effectively low-voltage copper bar is caused, effectively prevented the local overheating of high and low side upper clamping piece at high and low side upper clamping piece web outer surface.Owing to increased the folder mode of top and the bottom, thereby core clamping magnetic screen noise reduced; In addition, also increased the lead-in wire arrangement space, at the transformer that has the same oil spacing to leave, structural configuration is simple.
3. low pressure winding of the present invention is lifted one's head all in the upper end, is connected low pressure top through copper bar and realizes the twin columns parallel connection.Lift one's head parallel adjacently for two, the electric current equal direction is opposite, thereby has reduced the leakage field of big electric current copper bar on iron core arm-tie web, reduces the generation of low pressure upper limbs plate superheating phenomenon; In addition, also solved big electric current copper bar to the not enough problem of low pressure upper clamping piece distance and the fuel tank distance is remained unchanged; Reduce supplementary load loss, thereby protected environment.
4. seat is takeed in the transportation of the present invention's employing when the transformer body fuel tank is strengthened the transportation of employing D36 transport vehicle is installed on the iron.Transportation shoulder seat is directly to be connected oil tank of transformer through bolt to strengthen on the iron, and transformer detachably gets off after being transported to the erecting bed, and is reusable when other transformer transportation.
5. the present invention is the supporting transformer that provides of third generation nuclear power technology EPR1000 nuclear power station 1,750,000 kW generating sets first, for China greatly develops the nuclear power cause, advances the nuclear power plant equipment production domesticization at field transformer strong technical support to be provided.
6. successful development of the present invention, the research at aspects such as the single-phase generator Transformer Winding Temperature Rise of vast capacity, leakage field controls has had bigger breakthrough, can promote the development of domestic transformer industry, has satisfied the demand of Chinese environmental protection power grid construction.
Description of drawings
Fig. 1 is a transformer front view of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the sketch map of iron core among the present invention and folder from top to bottom;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the partial enlarged drawing at I place among Fig. 5;
Fig. 7 is the partial enlarged drawing at II place among Fig. 5;
Fig. 8 is the partial enlarged drawing at III place among Fig. 5;
Fig. 9 A is the structural representation of upper clamping piece magnetic screen unshakable in one's determination among the present invention;
Fig. 9 B is that magnetic screen connects sketch map among Fig. 9 A;
Figure 10 A is the structural representation of lower clamping piece magnetic screen unshakable in one's determination among the present invention;
Figure 10 B is that magnetic screen connects sketch map among Figure 10 A;
Figure 11 A is the sketch map of mesolow outlet electric shielding structure of the present invention;
Figure 11 B is the vertical view of Figure 11 A;
Figure 11 C is an electric screen web frame sketch map among Figure 11 A;
Figure 12 is a mesolow outlet copper bar syndeton sketch map of the present invention;
Figure 13 is the left view of Figure 12;
Transportation shoulder seat and fuel tank syndeton sketch map when Figure 14 transports for transformer body of the present invention;
Figure 15 is the left view of Figure 14.
Wherein, 1 is transformer body; 2 is bushing; 3 is low-tension bushing; 4 is the high pressure neutral bushing; 5 is oil conservator; 6 is lower oil tank; 7 is last fuel-economizing case; 8 is cooling device; 9 is upper clamping piece; 10 for putting the beams in place; 11 is curb girder; 12 is lower clamping piece; 13 are the pad pin; 14 is unshakable in one's determination; 15 is insulating board; 16 is insulation board; 17 is insulation cushion; 18 is insulating case; 19 is drawstring; 20 is the upper clamping piece web; 21 is the upper clamping piece magnetic screen; 22 is the lower clamping piece web; 23 is the lower clamping piece magnetic screen; 24 is insulation board; 25 is copper shield; 26 is the electric screen net; 27 is lower flange; 28 mix for hanging; 29 is upper cover plate; 30 is the enclosed busbar flange; 31 is lower cover; 32 is copper coin; 33 are low pressure rising seat; 34 lift one's head for the low pressure winding; 35 is copper bar; 36 are the pressure regulation lead-in wire; 37 is no load switch; 38 are fuel tank reinforcement iron, and 39 are transportation shoulder seat, and 40 is the D36 transport vehicle.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description.
Vast capacity generator transformer of the present invention is an example with single-phase 700MVA/500kV generator transformer; Have bushing, low-tension bushing, high pressure neutral bushing, oil conservator, go up fuel-economizing case, lower oil tank, cooling device and no load switch; Wherein: go up in fuel-economizing case 7 and the lower oil tank 6 single-phase four post core constructions are set; Be with the high and low pressure winding respectively on the two principal post iron cores of single-phase four posts unshakable in one's determination 14, two post high and low pressure windings are connected in parallel; Two post low pressure windings are lifted one's head all in the upper end, are connected to form low pressure twin columns parallel-connection structure through copper bar 35; Bushing 2 is directly vertically drawn from high pressure winding middle part; Oil conservator 5 is positioned at the fuel-economizing case 7 tops opposite side relative with bushing, extends perpendicular to the transformer long axis direction and outside prolonging axially; Cooling device 8 centralized arrangement have the outside of bushing 2 and high pressure neutral bushing 4 one sides at last fuel-economizing case 7 and lower oil tank 6; Parallel with transformer 1 long axis direction; Under the prerequisite that guarantees the external insulation distance; Transformer 1 integral layout is reasonable, limits size to reduce outward, makes the supporting construction of oil conservator 5, cooling device 8 more reliable simultaneously.Low-voltage lead links to each other with outer kernel plant generator unit through low-tension bushing 3, the adjustment that the electric energy that the nuclear power station generating set sends passes through transformer by high-tension cable to 500kV electrical network conveying capacity.
Core construction adopts single-phase four rod structures, by two principal posts unshakable in one's determination and two other posts, and two closed magnetic circuits of going up yoke and four these single-phase transformers of return yoke formation.Adopt simultaneously iron core arm-tie, folder and pad pin guarantee lamination clamping, the lifting of device body, compress and short-circuit condition under mechanical strength.Be connected with upper and lower folder magnetic screen 21,23 through two-way bolt respectively on the folder from top to bottom web 20,21 unshakable in one's determination; Upper clamping piece 9 outer surfaces are coated with copper shield 25 simultaneously, and upper clamping piece magnetic screen 21 is fixed on the copper shield 25 of upper clamping piece 9 outer surfaces covering by bolt.
Two of low pressure windings are lifted one's head parallel adjacent, and electric current is equal, and is in the opposite direction, thereby reduce the leakage field of great current lead wire on iron core arm-tie web, and it is overheated effectively to have controlled the transformer part.The pressure regulation lead-in wire adopts in two principal post coils unshakable in one's determination respectively draws upper and lower two-way, and totally four pass lines are received on four patchboards of no load switch.
Low-voltage lead is the single-phase electricity shielding construction, comprises low pressure rising seat 33,26, two low-voltage terminals of electric screen net is installed in it all inserts in two low pressure rising seats 33, and drawn by low pressure rising 33 top.
Said low pressure rising seat 33 is a cylinder mode; The upper end of its inwall and upper cover plate 29 Joints; The lower end is connected with lower flange 27; Low pressure raises on the inwall of seat 33 and the bottom surface of upper cover plate 29 is provided with electric screen net 26, and low-voltage terminal passes upper cover plate 29, is fixed with low-tension bushing 3 and enclosed busbar flange 30 at the upper surface of upper cover plate 29; At low pressure rising seat 33 underrun flanges lower cover 31 is installed removably.
Establish reinforcement iron on the said main body lower oil tank 6, strengthen removably being equipped with on the iron transportation shoulder seat, transformer detachably gets off after being transported to the erecting bed, and is reusable when other transformer transportation.
Shown in Fig. 1～3, among the present invention, bushing 2 is directly vertically drawn from last fuel-economizing case 7; High pressure neutral bushing 4 be arranged in the high-pressure side with away from bushing 2 directions; Oil conservator 5 is positioned at the left side of fuel-economizing case 7 near high pressure neutral bushing 4, perpendicular to transformer 1 long axis direction; Cooling device 8 centralized arrangement are in the high-pressure side of transformer 1, with parallel with transformer 1 long axis direction; Under the prerequisite that guarantees the external insulation distance, transformer 1 integral layout is reasonable, limits size to reduce outward, makes the supporting construction of oil conservator 5, cooling device 8 more reliable simultaneously.
Shown in Fig. 4～8; Single-phase four posts unshakable in one's determination 14 are set in last fuel-economizing case 7, the lower oil tank 6; Be provided with insulating board 15 between the contact-making surface of the upper and lower folder 9,12 of single-phase four posts unshakable in one's determination 14 and single-phase four posts unshakable in one's determination 14; Make upper and lower folder 9,12 all insulations of single-phase four posts unshakable in one's determination 14, upper and lower folder 9,12 is connected with single-phase four posts unshakable in one's determination 14 through earth connection, makes upper and lower folder 9,12 independent groundings.The bolt of the upper beam 10 of upper and lower folder 9,12, pad pin 13, curb girder 11 and upper and lower folder 9,12 connections is with insulating case 18, insulation cushion 17, insulation board 16 all insulations; Drawstring 19 two ends and upper and lower folder 9,12 all insulations; Connect with earth connection then; Make its upper and lower folder 9,12 independent groundings,, when appearance multipoint earthing unshakable in one's determination is checked, find easily simultaneously if solved the problem that can not form the loop when vast capacity, high voltage transformer folder produce circulation owing to leakage field.
Shown in Fig. 9 A, 9B, 10A, 10B; Be connected with folder magnetic screen 21,23 through two-way bolt on the single-phase four posts 14 upper and lower folder webs 20,22 unshakable in one's determination; And with insulation board 24 clamping magnetic screens; Can make leakage field along silicon steel sheet rolling direction walking, and most of leakage field is introduced the main flux of single-phase four posts unshakable in one's determination 14, the loss that leakage field produces reduces significantly; Simultaneously install copper coin 25 additional as copper shield, in the leakage field reflected back lower oil tank 6 that effectively low-voltage copper bar is caused, effectively prevented the local overheating of upper clamping piece web 20 at high and low side upper clamping piece web outer surface.Owing to increased the clamping mode of transformer top and the bottom, thereby folder magnetic screen 21,23 noises reduced; In addition,, therefore increased the arrangement space of low-voltage lead, made the low-voltage lead structural configuration simple because upper clamping piece 9 outer surfaces are coated with copper shield 25.
Shown in Figure 11 A, 11B, 11C, the transformer low voltage lead-in wire adopts two single-phase electricity shielding constructions to be positioned at the top of step down side, is connected with the last fuel-economizing case 7 of transformer, comprises two independently low pressure rising seats 33, and electric screen net 26 is installed in it.
Two low-voltage terminals of single-phase transformer insert respectively in two low pressure rising seats 33, and are drawn by low pressure rising seat 33 tops.Low pressure rising seat 33 is a cylinder mode, and the upper end of its inwall and upper cover plate 29 adopt welding affixed, and the lower end is connected with lower flange 27.For the seat that raises in carrying low pressure kept it to put steadily at 33 o'clock, on the lower flange 27 of low pressure rising seat 33 bottom surfaces, lower cover 31 is installed removably.On the inwall of low pressure rising the seat 33 and bottom surface of upper cover plate 29 is provided with electric screen net 26, all has the hole on 26 times square flanges 27 of the electric screen net on upper cover plate 29 and the inwall thereof, is used for the transformer low voltage terminal and passes.Electric screen net 26 is the high copper coin of conductance 32.Upper surface at upper cover plate 29 is fixed with boatswain chair 28 and enclosed busbar flange 30.
Shown in Figure 12～13, transformer body inside comprises: the low pressure winding lifts one's head 34 all in the upper end, connects through copper bar 35 and realizes the parallel connection of low pressure twin columns.It is 34 parallel adjacent that two of low pressure windings are lifted one's head, and the electric current equal direction is opposite, thereby reduce the leakage field of great current lead wire on iron core arm-tie web 20, and it is overheated effectively to have controlled the transformer part.The pressure regulation lead-in wire adopts in two principal post coils unshakable in one's determination respectively draws upper and lower two-way,, totally four pass lines are received on four patchboards of no load switch 37.
Shown in Figure 14～15, the transportation shoulder seat 39 that transformer 1 main body fuel tank adopts when strengthening the transformer transportation is installed on the iron 38.Transportation shoulder seat 39 is directly to be connected oil tank of transformer through bolt to strengthen on the iron 38, and transformer detachably gets off after being transported to the erecting bed through D36 transport vehicle 40, and is reusable when other transformer transportation.
Claims (8)
1. a single-phase vast capacity generator transformer has bushing, low-tension bushing, high pressure neutral bushing, oil conservator, goes up fuel-economizing case, lower oil tank, cooling device and no load switch, it is characterized in that:
Single-phase four post core constructions are set in last fuel-economizing case (7) and the lower oil tank (6), are with the high and low pressure winding respectively on the two principal post iron cores of single-phase four posts iron core, two principal post high and low pressure windings unshakable in one's determination are connected in parallel; Two principal post low pressure windings are lifted one's head all in the upper end, are connected to form low pressure twin columns parallel-connection structure through copper bar (35);
Bushing (2) is directly vertically drawn from high pressure winding middle part; High pressure neutral bushing (4) is positioned at the high-pressure side near oil conservator (5), and high pressure neutral bushing (4) is vertically drawn directly and is connected with the neutral point lead-in wire; Low-tension bushing (3) is positioned at the low-pressure side of fuel-economizing case (7), and low-tension bushing (3) is directly lifted one's head the low-voltage lead that (34) draw with the low pressure winding and is connected;
Oil conservator (5) is positioned at fuel-economizing case (7) the top opposite side relative with bushing, extends perpendicular to the transformer long axis direction and outside prolonging axially;
Cooling device (8) centralized arrangement is in the outside that last fuel-economizing case (7) and lower oil tank (6) have bushing (2) and high pressure neutral bushing (4) one sides, and is parallel with the transformer long axis direction;
After low-tension bushing (3) is drawn from low-voltage lead, link to each other with outer kernel plant generator unit;
No load switch (37) is positioned at the low-pressure side of transformer (1), and its patchboard is connected to the tap pressure regulation lead-in wire that the pressure regulation section in the high pressure winding is drawn in low-pressure side.
2. by the described single-phase vast capacity generator transformer of claim 1, it is characterized in that: said single-phase four rod structures are for going up yokes and four single-phase transformer closed magnetic circuits that return yoke constitutes by two principal posts unshakable in one's determination, two other posts, two.
3. by the described single-phase vast capacity generator transformer of claim 1; It is characterized in that: said single-phase four post iron cores have upper and lower folder (9,12), upper and lower folder web (20,22); Be connected with upper and lower folder magnetic screen (21,23) through connector respectively on the upper and lower folder web (20,22); Upper clamping piece (9) outer surface is coated with copper shield (25), and upper clamping piece magnetic screen (21) is fixed on the copper shield (25).
4. by the described single-phase vast capacity generator transformer of claim 1, it is characterized in that: respectively draw upper and lower two-way pressure regulation lead-in wire in two principal post coils unshakable in one's determination, totally four pass lines are connected on four patchboards of no load switch.
5. by the described single-phase vast capacity generator transformer of claim 1, it is characterized in that: two of low pressure winding lift one's head parallel adjacent, and electric current equates, and is in the opposite direction.
6. by the described single-phase vast capacity generator transformer of claim 1; It is characterized in that: said low-voltage lead adopts the single-phase electricity shielding construction; Comprise low pressure rising seat (33); In the low pressure rising seat (33) electric screen net (26) is installed, two low-voltage terminals all insert in two low pressure rising seats (33), and are drawn by low pressure rising (33) top.
7. by the described single-phase vast capacity generator transformer of claim 6; It is characterized in that: said low pressure rising seat (33) is cylinder mode; The upper end of its inwall and upper cover plate (29) Joint, the lower end is connected with lower flange (27), and on the inwall of low pressure rising seat (33) and the bottom surface of upper cover plate (29) is provided with gauze screen (26); Low-voltage terminal passes upper cover plate (29), is fixed with low-tension bushing (3) and enclosed busbar flange (30) at the upper surface of upper cover plate (29); At low pressure rising seat (a 33) underrun flange lower cover (31) is installed removably.
8. by the described vast capacity generator transformer of claim 1, it is characterized in that: said lower oil tank is established reinforcement iron on (6), strengthens removably being equipped with on the iron transportation shoulder seat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010213703 CN102315007B (en) | 2010-06-30 | 2010-06-30 | Single-phase ultra-high-capacity nuclear power station transformer |
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| CN 201010213703 CN102315007B (en) | 2010-06-30 | 2010-06-30 | Single-phase ultra-high-capacity nuclear power station transformer |
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| CN102315007A true CN102315007A (en) | 2012-01-11 |
| CN102315007B CN102315007B (en) | 2013-06-12 |
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| CN 201010213703 Active CN102315007B (en) | 2010-06-30 | 2010-06-30 | Single-phase ultra-high-capacity nuclear power station transformer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN106098326A (en) * | 2016-08-22 | 2016-11-09 | 山东鲁能泰山电力设备有限公司 | A kind of Split type structure transformer |
| CN112455325A (en) * | 2020-11-04 | 2021-03-09 | 中国南方电网有限责任公司超高压输电公司 | Detachable support for transporting large parts |
| CN112735783A (en) * | 2020-12-21 | 2021-04-30 | 山东电力设备有限公司 | Transformer copper shielding structure |
| CN112735778A (en) * | 2020-12-28 | 2021-04-30 | 宁波宁变电力科技股份有限公司 | Insulation structure for avoiding circulation in reactance switching process of large-sized starting autotransformer |
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| CN101145439A (en) * | 2006-09-15 | 2008-03-19 | 特变电工沈阳变压器集团有限公司技术中心 | Generator transformer |
| CN201345276Y (en) * | 2009-01-21 | 2009-11-11 | 山东泰开箱变有限公司 | Combined type transformer for separating box type wind power generation |
| CN201804691U (en) * | 2010-06-30 | 2011-04-20 | 特变电工沈阳变压器集团有限公司 | Single-phase super-capacity transformer for nuclear power station |
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| CN101145439A (en) * | 2006-09-15 | 2008-03-19 | 特变电工沈阳变压器集团有限公司技术中心 | Generator transformer |
| CN201345276Y (en) * | 2009-01-21 | 2009-11-11 | 山东泰开箱变有限公司 | Combined type transformer for separating box type wind power generation |
| CN201804691U (en) * | 2010-06-30 | 2011-04-20 | 特变电工沈阳变压器集团有限公司 | Single-phase super-capacity transformer for nuclear power station |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN103606441B (en) * | 2013-08-30 | 2016-12-28 | 国家电网公司 | A kind of transformator noise reduction sound absorber |
| CN106098326A (en) * | 2016-08-22 | 2016-11-09 | 山东鲁能泰山电力设备有限公司 | A kind of Split type structure transformer |
| CN106098326B (en) * | 2016-08-22 | 2018-06-05 | 山东鲁能泰山电力设备有限公司 | A kind of Split type structure transformer |
| CN112455325A (en) * | 2020-11-04 | 2021-03-09 | 中国南方电网有限责任公司超高压输电公司 | Detachable support for transporting large parts |
| CN112735783A (en) * | 2020-12-21 | 2021-04-30 | 山东电力设备有限公司 | Transformer copper shielding structure |
| CN112735778A (en) * | 2020-12-28 | 2021-04-30 | 宁波宁变电力科技股份有限公司 | Insulation structure for avoiding circulation in reactance switching process of large-sized starting autotransformer |
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| CN102315007B (en) | 2013-06-12 |
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