Oil-immersed Amorphous Alloy Distribution Transformer
Oil-immersed amorphous alloy distribution transformer is an oil-immersed sealed transformer manufactured according to the standard GB/T25446-2010. It adopts amorphous alloy material and has the characteristics of compact structure, low loss and strong short-circuit resistance.
Overview
Characteristics of amorphous alloys
The basic elements of amorphous alloys are iron, nickel, cobalt, silicon, boron, carbon, etc. They are the same kind of isotropic soft magnetic materials, with low magnetization power, no structural defects that hinder the movement of domain walls, extremely thin thickness of only 0.027mm, and correspondingly smaller filling factor of only 0.75~0.8. The resistivity is very high, 3~6 times that of silicon steel sheets, and the hardness is 5 times that of silicon steel sheets. Amorphous alloy materials are particularly sensitive to stress. For SH15-M-30~2500/6~10 series products, the no-load loss is reduced by 70% based on the GB/T6541 standard value.
Main parameters & specification
Capacity | Connection symbol | High voltage | Low voltage | No-load loss | Dy load loss | Yy load loss | No-load current | Short-circuit impedance |
30 | Dynl1 | 6 | 0.4 | 33 | 630 | 600 | 1.5 | 4 |
50 | 43 | 910 | 870 | 1.2 | ||||
63 | 50 | 1090 | 1040 | 1.1 | ||||
80 | 60 | 1310 | 1250 | 1 | ||||
100 | 75 | 1580 | 1500 | 0.9 | ||||
125 | 85 | 1890 | 1800 | 0.8 | ||||
160 | 100 | 2310 | 2200 | 0.6 | ||||
200 | 120 | 2730 | 2600 | 0.6 | ||||
250 | 140 | 3200 | 3050 | 0.6 | ||||
315 | 170 | 3830 | 3650 | 0.5 | ||||
400 | 200 | 4520 | 4300 | 0.5 | ||||
500 | 240 | 5410 | 5150 | 0.5 | ||||
630 | 320 | 6200 | 0.3 | 4.5 | ||||
800 | 380 | 7500 | 0.3 | |||||
1000 | 450 | 10300 | 0.3 | |||||
1250 | 530 | 12000 | 0.2 | |||||
1600 | 630 | 14500 | 0.2 | |||||
2000 | 750 | 18300 | 0.2 | 5 | ||||
2500 | 900 | 21200 | 0.2 |