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Table 1 30kVA~2500kVA, Three-Phase Duplex Windings, No-Load Voltage Regulation, Distribution Transformer (SH15 Series)
|
No-Load Loss (W) |
On-Load Loss (W) |
No-Load Current (%) |
Short-Circuit Impedance (%) |
||||||
|
30 |
6 |
±2×2.5 |
0.4 |
Dyn11 |
33 |
630/600 |
1.50 |
4.0 |
52 |
|
50 |
43 |
910/870 |
1.20 |
53 |
|||||
|
63 |
50 |
1 090/1 040 |
1.10 |
||||||
|
80 |
60 |
1 310/1 250 |
1.00 |
55 |
|||||
|
100 |
75 |
1 580/1 500 |
0.90 |
||||||
|
125 |
85 |
1 890/1 800 |
0.80 |
59 |
|||||
|
160 |
100 |
2 310/2 200 |
0.60 |
||||||
|
200 |
120 |
2 730/2 600 |
0.60 |
61 |
|||||
|
250 |
140 |
3 200/3 050 |
0.60 |
||||||
|
315 |
170 |
3 830/3 650 |
0.50 |
64 |
|||||
|
400 |
200 |
4 520/4 300 |
0.50 |
||||||
|
500 |
240 |
5 410/5 150 |
0.50 |
66 |
|||||
|
630 |
320 |
6 200 |
0.30 |
4.5 |
|||||
|
800 |
380 |
7 500 |
0.30 |
68 |
|||||
|
1 000 |
450 |
10 300 |
0.30 |
||||||
|
1 250 |
530 |
12 000 |
0.20 |
72 |
|||||
|
1 600 |
630 |
14 500 |
0.20 |
||||||
|
2 000 |
750 |
18 300 |
0.20 |
5 |
73 |
||||
|
2 500 |
900 |
21 200 |
0.20 |
||||||
|
Note 1: Transformers of "Yyn0" can also be supplied upon demands if the iron core is in the structure of three phases and three columns. |
|||||||||
(1) The no-load loss of is more than 65% lower than that of S11 transformers, the no-load current is reduced by about 80%, and the annual operating cost is reduced by an average of 22.7%.
(2) The transformers has no structural loss, and the iron core adopts a three-phase, four-frame and five-column structure. Zero-sequence magnetic flux flows in the columns on both sides, and the magnetic flux does not pass through the box, so no heating structure losses occur.
(3) The transformers connection group uses Dyn11 to reduce the impact of harmonics on the power grid and improve the quality of power supply.
(4) The low-voltage winding of the transformer uses copper foil coils, and the coils are round and rectangular.
(5) The transformer body structure adopts "upper branch and lower branch" to reduce the stress on the iron core as much as possible and ensure the electromagnetic performance of the amorphous alloy iron core.
(6) The small-capacity transformers package adopts vertical package technology, and the large-capacity transformer package adopts horizontal package technology to strictly control the noise and no-load loss of the transformer.
(7) The transformers box adopts a fully enclosed structure. The box is filled with silicone oil that has good anti-oxidation, high temperature resistance and thermal cycle properties, and the transformer is basically maintenance-free.
(8) The transformers uses vacuum oil filling to completely eliminate air bubbles in the coil and ensure the stability of the insulation performance.
(9) A protective cover is installed above the high and low voltage bushings of the transformers so that no conductors are exposed, and cable routing is used to achieve full insulation protection.
have 16 years of experience in international power projects and have helped many customers around the world complete power projects. For example, Canada, Mexico, Panama, Ecuador, Guatemala, Honduras, Chile, El Salvador, Australia, New Zealand, Spain, Belgium, Algeria, South Africa, Ethiopia, Myanmar, Kazakhstan, etc. GNEE also have very good after-sales installation service team abroad, so if you have transformer needs, you can contact us.
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