CN2906861Y

CN2906861Y - Overlapped dry type resin insulated transformer

Info

Publication number: CN2906861Y
Application number: CN 200620103022
Authority: CN
Inventors: 赵西平
Original assignee: Zhejiang Guangtian Transformer Co Ltd
Current assignee: Zhejiang Guangtian Transformer Co Ltd
Priority date: 2006-04-22
Filing date: 2006-04-22
Publication date: 2007-05-30
Anticipated expiration: 2016-04-22

Abstract

The utility model relates to an overlapping dry-up resin insulation transformer, comprising a high voltage winding casting, a low voltage winding casting, an iron core positioned in the low voltage winding casting, and a plurality of clamping pieces. The utility model is characterized in that the dry-up resin insulation transformer is three-phase, i.e. a superior phase, a middle phase, and a inferior phase which overlap one another; a insulation cylinder is positioned between the high voltage winding casting and the low voltage winding casting of each-phase dry-up resin insulation transformer; a lip block A is arranged between the high voltage winding casting and the insulation cylinder; a lip block B is positioned between the low voltage winding casting and the insulation cylinder; the clamping pieces are arranged at both sides of the three-phase (namely the superior phase, the middle phase, and the inferior phase) dry-up resin insulation transformer; a cross-over block is positioned between the high voltage winding casting and the clamping pieces; the bottom of the clamping pieces is connected with the base.

Description

Overlapping dry-type resin insulation transformer

Technical field

The utility model relates to dry-type resin insulating transformer, particularly relates to 10 kilovolts or 35 kilovolts of overlapping dry-type resin insulation transformers.

Background technology

If there is not the product of size and volume requirement, its iron core and coil be from making the complexity consideration for power transformer (transformer station with), generally often selects round or oval-shaped cross section for use.And the transformer of width requirement is arranged for some, and for the requirement of satisfying its width and the requirement of capacity, adopt rectangular iron core usually, can reach the purpose of dwindling its width.But the conventional electric power transformer is because the transformer width outside is the high-tension coil of transformer, thereby transformer width exterior palpi leaves 80mm to the 10KV product, the 35KV product is left insulation distance more than the 180mm, and because the length of rectangle iron core should not surpass three times restriction with wide ratio, and can not be less than the width requirement of a minimum for its width of transformer of a constant volume, all can not satisfy less than its relevant insulation of this width and the requirement of capacity, realize miniaturization so the parallel type structure of the left, center, right formula of existing procucts more can not satisfy the control system of power transmission and distribution, the needs of high efficiency.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that prior art exists, provide a kind of cabinet width not influenced by the high-voltage coil insulation requirement, satisfy transformer requirement in the miniaturization of high-voltage switch gear cabinet, especially can be implemented on the plateau overlapping dry-type resin insulation transformer that the same wide use of cabinet still reaches insulating requirements.

The technical scheme of the utility model overlapping dry-type resin insulation transformer is: by the high-tension coil pour mass, the low-voltage coil pour mass, be installed in the iron core in the low-voltage coil pour mass, and dry-type resin insulating transformer that folder is formed, it is characterized in that dry-type resin insulating transformer is a three-phase, on the dry-type resin insulating transformer three-phase is, in, folded mutually down, mounting insulation tube between the high-tension coil pour mass of each phase dry-type resin insulating transformer and low-voltage coil pour mass, the first lip block is arranged between high-tension coil pour mass and insulating cylinder, the second lip block is arranged between low-voltage coil pour mass and insulating cylinder, last, in, folder is installed in the both sides of following 3-phase dry type resin insulating transformer, between high-tension coil pour mass and folder cross-over block is installed, the bottom of folder connects base.The technical program is on the 3-phase dry type resin insulating transformer, in, folded mutually down, and last, in, the both sides of following three-phase install and fix through folder, because it is equipotential in operation that its both sides are the last lower yoke above earth potential of iron core, thereby there is not the Insulation Problems with last lower yoke in cabinet, as long as it is just passable that transformer and cabinet have the gap of machinery in actual product, do not need the enforceable 10KV80mm that respectively stays between the two, the distance that 35KV180mm is above, make the reduced width of transformer cabinet, simultaneously cancelled the base and the boatswain chair of existing transformer bottom again, reduced thereby make highly also.Mounting insulation tube between high-tension coil pour mass and low-voltage coil pour mass reduces the electric field strength between the high-voltage coil and low-voltage coil, improves insulation property.And between high-voltage coil and low-voltage coil and the insulating cylinder lip block is arranged, reach transportation, be not shifted in using, do not rock, it is firm to install.Therefore, can produce the product that satisfies high height above sea level and high insulating requirements, and the high-voltage switch gear cabinet is realized the needs of miniaturization and control system miniaturization, high efficiency.Be specially adapted to 10 kilovolts with 35 kilovolts of high-tension switch cabinet cabinets in the dry-type resin insulating transformer that uses.

Description of drawings

Fig. 1 is the overlapping type 10KV dry-type resin insulating transformer of a utility model structural representation;

Fig. 2 is that the overlapping type 10KV dry-type resin insulating transformer of the utility model A is to schematic diagram;

Fig. 3 is the overlapping type 10KV dry-type resin insulating transformer of a utility model B-B schematic cross-section.

Fig. 4 is the overlapping type 35KV dry-type resin insulating transformer of a utility model structural representation;

Fig. 5 is that the overlapping type 35KV dry-type resin insulating transformer of the utility model C is to schematic diagram;

Fig. 6 is the overlapping type 35KV dry-type resin insulating transformer of a utility model D-D schematic cross-section.

Embodiment

The utility model relates to overlapping dry-type resin insulation transformer, as Fig. 1-shown in Figure 6, by high-tension coil pour mass 3, low-voltage coil pour mass 5, be installed in the iron core 10 in the low-voltage coil pour mass, and dry-type resin insulating transformer that folder is formed, its major technology is characterised in that dry-type resin insulating transformer is a three-phase, on the dry-type resin insulating transformer three-phase is, in, folded mutually down, on, in, as long as overlapping transformer and the cabinet both sides of making have mechanical clearance just can meet the demands down, can make the reduced width of whole transformer cabinet, mounting insulation tube 4 between the high-tension coil pour mass 3 of each phase dry-type resin insulating transformer and low-voltage coil pour mass 5, reduce the electric field strength between the high-voltage coil and low-voltage coil, between high-tension coil pour mass 3 and insulating cylinder 4, first lip block 1 is arranged, between low-voltage coil pour mass 5 and insulating cylinder 4, second lip block 2 is arranged, each parts is fixed, last, in, folder 7 is installed in the both sides of following 3-phase dry type resin insulating transformer, 9, at high-tension coil pour mass 3 and folder 7, cross-over block 11 is installed between 9,13,

folder

7,9 bottom connects base 8.

As Fig. 1, Fig. 2 and shown in Figure 3, relate to the 10KV dry-type resin insulating transformer, on outlet insulator 6, be equipped with high-voltage connection 12.Breakout box 14 is arranged outside high-tension coil pour mass 3.It is that the high H of 10KV dry-type resin insulating transformer is 745 millimeters that a special case is arranged, and left and right wide L is 560 millimeters, and the front and back width S is 455 millimeters.

As Fig. 4, Fig. 5 and shown in Figure 6, relate to the 35KV dry-type resin insulating transformer, it is that the high X of 35KV dry-type resin insulating transformer is 1260 millimeters that a special case is arranged, and left and right wide Y is 1165 millimeters, and front and back width Z is 650 millimeters.

Claims

1, overlapping dry-type resin insulation transformer, by the high-tension coil pour mass, the low-voltage coil pour mass, be installed in the iron core in the low-voltage coil pour mass, and dry-type resin insulating transformer that folder is formed, it is characterized in that dry-type resin insulating transformer is a three-phase, on the dry-type resin insulating transformer three-phase is, in, folded mutually down, mounting insulation tube (4) between the high-tension coil pour mass (3) of each phase dry-type resin insulating transformer and low-voltage coil pour mass (5), between high-tension coil pour mass (3) and insulating cylinder (4), first lip block (1) is arranged, between low-voltage coil pour mass (5) and insulating cylinder (4), second lip block (2) is arranged, last, in, folder (7 is installed in the both sides of following 3-phase dry type resin insulating transformer, 9), at high-tension coil pour mass (3) and folder (7, cross-over block (11 is installed 9), 13), folder (7,9) bottom connects base (8).

2, overlapping dry-type resin insulation transformer as claimed in claim 1 is characterized in that the height (H) of 10KV dry-type resin insulating transformer is 745 millimeters, and left and right wide (L) is 560 millimeters, and front and back wide (S) is 455 millimeters.

3, overlapping dry-type resin insulation transformer as claimed in claim 1 is characterized in that the height (X) of 35KV dry-type resin insulating transformer is 1260 millimeters, and left and right wide (Y) is 1165 millimeters, and front and back width (Z) is 650 millimeters.