CN2535909Y

CN2535909Y - Mine flame-proof type wound-core movable transformer

Info

Publication number: CN2535909Y
Application number: CN 01274757
Authority: CN
Inventors: 刘会明
Original assignee: Individual
Current assignee: LIU HUIMING
Priority date: 2001-12-28
Filing date: 2001-12-28
Publication date: 2003-02-12
Anticipated expiration: 2011-12-28

Abstract

The utility model discloses a mine flame-proof type winding iron core movable transformer having the advantages of low cost, small volume, light weight, flexible running, convenient use and repair, capability of reducing zero load loss and zero load exciting current, low noise, high power, large capacity and low price. The utility model is characterized in that the utility model is composed of high voltage switch (1), a casing (2), a low voltage switch (3), an R type winding iron core (4), a coil (5) and a movable bottom wheel (6) which are used on a flame-proof type transformer by using the principle of a miniature R type electronic transformer, wherein the R type winding iron core (4) adopts a silicon steel ribbon winding iron core of which the middle is wide and both ends are narrow; cross sections of a core column and a yoke forms a shape close to circle; the coil (5) adopts a multi-ply round winding structure.

Description

Flame-proof mine Wound core phase shifting transformer

The utility model belongs to mining equipment for power transmission and distribution technical field, is specifically related to a kind of flame-proof mine Wound core phase shifting transformer.

Known to the inventor, present most of transformer production factory all adopts the fabrication of iron core transformer of stacking type, core material selects the cold bundle about 0.35mm that orientation silicon steel coiled strip is arranged, cut out the iron core that the definite shape stack becomes stepped cross-sections at different levels, its cross section occupation efficiency about 90%, the iron core of this structure all has a plurality of air gaps with magnetic circuit mutually, causes transformer noload losses big easily, unloaded exciting curent is big, and noise is big during operation.Though minority producer also adopts the classification takeup type not cut ladder and plants face volume iron core, claims new S9 type transformer, transformer noload losses is reduced to some extent, unloaded exciting curent, the operation noise is big all the better.Especially coal industry and relevant chemical enterprise still use oil stain formula type mining transformer up till now in a large number, and mine safety is had serious risk.

The utility model is exactly for overcoming above deficiency, a kind of production cost that provides is not high, volume is little, flexible operation, easy to use, can reduce transformer noload losses, unloaded exciting curent, the operation noise is little, and the power high power capacity is big, is particularly useful for the flame-proof mine Wound core phase shifting transformer that coal industry reaches relevant industry.

The utility model is to realize like this, flame-proof mine Wound core phase shifting transformer is with small-sized R type electronic transformer, both machine body structure principles of low capacity power transformer (315KVA following), by the well-designed flame-proof type transformer that is applied in, both on the above dry-type transformer of 630KVA, its structure is by high-voltage switch gear (1), housing (2), low tension switch (3), mobile return pulley (6) is formed, it is characterized in that being provided with in the vehicle frame on mobile return pulley (6) R type takeup type iron core (4), on R type takeup type iron core (4), be wound with coil (5), and hitch flame proof housing (2), R type takeup type iron core (4) adopts a centre wide, the silicon steel roll coil of strip iron core winding structure that two is narrow, the sectional area of stem and yoke approaches circle, coil (5) adopts the circular winding structure of multilayer, corrugated plating is adopted in transformer housing (2) both sides, and top board and base plate adopt arcuate structure, and the above dry-type transformer R type takeup type iron core (4) of 630KVA adopts shell-type mechanism.

Flame-proof mine Wound core phase shifting transformer of the present utility model, it is low to have a production cost, and volume is little, and is in light weight, flexible operation uses easy to maintenancely, can reduce transformer noload losses, unloaded exciting curent, noise is little, and the power high power capacity is big, the advantage that price is low.

Description of drawings

Accompanying drawing 1 is a flame-proof mine Wound core phase shifting transformer structure chart

Accompanying drawing 2 is flame-proof mine Wound core phase shifting transformer iron coil cored structure figure

Among the figure: 1. high-voltage switch gear, 2. housing, 3. low tension switch, 4.R type takeup type iron core, 5. coil 6. moves return pulley,

The utility model is described in further detail to provide an embodiment below in conjunction with accompanying drawing, flame-proof mine Wound core phase shifting transformer as shown in Figure 1 is at mobile return pulley (6) a rectangle vehicle frame or sweep to be set, at vehicle frame or sweep, the centre is provided with R type takeup type iron core (4), on R type takeup type iron core (4), be wound with coil (5), and hitch flame proof housing (2), the two ends of R type takeup type iron core (4) are respectively arranged with high-voltage switch gear (1) or low tension switch (3), flame-proof mine Wound core phase shifting transformer as shown in Figure 2, R type takeup type iron core (4) is to adopt a centre wide, the silicon steel roll coil of strip iron core winding structure that two is narrow, the sectional area of stem and yoke approaches circle, there is not air gap to reduce 6-8% in the magnetic circuit than the iron core of S9 type transformer, copper material reduces 4-8%, volume-diminished 30%, no-load loss reduces by 30%, weight reduces 30%, noise reduces 10db, coil (5) adopts the circular winding structure of multilayer, corrugated plating is adopted in transformer housing (2) both sides, top board and base plate adopt arcuate structure, to increase the mechanical strength area of dissipation.

Claims

1, a kind of flame-proof mine Wound core phase shifting transformer, form by high-voltage switch gear (1), housing (2), low tension switch (3), mobile return pulley (6), be provided with R type takeup type iron core (4) in the vehicle frame on the mobile return pulley (6), on R type takeup type iron core (4), be wound with coil (5), and hitch flame proof housing (2), it is characterized in that R type takeup type iron core (4) adopts a centre wide, the silicon strip Wound core that two is narrow, the sectional area of stem and yoke approaches circle, and coil (5) adopts the circular winding structure of multilayer.

2, according to the flame-proof mine Wound core phase shifting transformer shown in the claim 1, its feature also is transformer housing (2) both sides employing corrugated plating, and top board and base plate adopt arc plate structure.

3, according to the flame-proof mine Wound core phase shifting transformer shown in the claim 1, its feature is that also the above dry-type transformer R type takeup type iron core (4) of 630KVA adopts the shell-type structure.