CN201421771Y - Mining flame-proof moving transformer - Google Patents

Abstract

The utility model discloses a mining flame-proof moving transformer which has low cost, small volume, light weight, flexible running and convenient use and maintenance, can lower the no-load loss andthe no-load exciting current of the transformer, and has low noise, high power, high capacity and low price, wherein according to the principle of a small R-type electronic transformer, the mining flame-proof moving transformer is designed and applied on a flame-proof transformer. The mining flame-proof moving transformer consists of a high-voltage switch (1), a shell (2), a low-voltage switch (3), an R-type winding iron core (4), a coil (5) and a moving bottom wheel (6), wherein the R-type winding iron core is a silicon steel strip winding iron core with the middle part being wide and the twoends being narrow; the sectional areas of a core column and a yoke are near circles; and the coil (5) adopts the multi-layer round winding structure.

Description

The flame-proof mine phase shifting transformer

Technical field

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

Background technology

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.

Summary of the invention

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 phase shifting transformer that coal industry reaches relevant industry.

The utility model is to realize like this, the flame-proof mine 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, housing, low tension switch, mobile return pulley is formed, be provided with R type takeup type iron core in the vehicle frame on mobile return pulley, on R type takeup type iron core, be wound with coil, and hitch flame proof housing, R type takeup type iron core 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 adopts the circular winding structure of multilayer, corrugated plating is adopted in transformer housing both sides, and top board and base plate adopt arcuate structure, and the above dry-type transformer R type takeup type iron core of 630KVA adopts shell-type mechanism.

Flame-proof mine 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, and 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 phase shifting transformer structure chart

Accompanying drawing 2 is flame-proof mine 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.

Embodiment

Flame-proof mine phase shifting transformer as shown in Figure 1 is at mobile return pulley 6 a rectangle vehicle frame or sweep to be set, in the middle of vehicle frame or sweep, be 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 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%, and no-load loss reduces by 30%, weight reduces 30%, noise reduces 10db, and coil 5 adopts the circular winding structure of multilayer, and 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 (3)

1, a kind of flame-proof mine 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 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 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.

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