S11/10KV Oil-immersed transformer
Product Features:
S11-30 ~ 3150KVA/10KV series distribution transformers have
remarkable energy-saving effect. They adopt new iron core
materials, fully inclined three-seam structure and even magnetic
circuit distribution, which greatly reduces no-load excitation
current and no-load loss. S11 products, on the basis of S9 series,
reduce no-load loss by 30% on average, reduce no-load current by
70%, and reduce noise by about 8 db.Install pressure release valve,
signal thermometer, gas relay, etc. according to the standard
requirements to ensure the safe operation of the transformer.It has
the characteristics of reliable operation, small size, light
weight, low noise, good technology, good heat dissipation, low
temperature rise, no core structure, no pollution, no maintenance,
high efficiency.
Technical data
| Serial number | Rated Capacity (kVA) | Type | Vector Group | No-load current (%) | No-Load loss (kW) | Load loss (kW) | Short-circuit impedance (%) | Type |
| 1 | 30 | S11-30/10 | Y,yn0 | 2.1 | 0.1 | 0.6 | 4.0 | Distribution transformer |
| 2 | 50 | S11-50/10 | 2.0 | 0.13 | 0.87 |
| 3 | 63 | S11-63/10 | 1.9 | 0.15 | 1.04 |
| 4 | 80 | S11-80/10 | 1.8 | 0.18 | 1.25 |
| 5 | 100 | S11-100/10 | 1.6 | 0.2 | 1.5 |
| 6 | 125 | S11-125/10 | 1.5 | 0.24 | 1.8 |
| 7 | 160 | S11-160/10 | 1.4 | 0.28 | 2.2 |
| 8 | 200 | S11-200/10 | 1.3 | 0.34 | 2.6 |
| 9 | 250 | S11-250/10 | 1.2 | 0.4 | 3.05 |
| 10 | 315 | S11-315/10 | 1.1 | 0.48 | 3.65 |
| 11 | 400 | S11-400/10 | 1.0 | 0.57 | 4.3 |
| 12 | 500 | S11-500/10 | 1.0 | 0.68 | 5.1 |
| 13 | 630 | S11-630/10 | 0.9 | 0.81 | 6.2 | 4.5 |
| 14 | 800 | S11-800/10 | 0.8 | 0.98 | 7.5 |
| 15 | 1000 | S11-1000/10 | 0.7 | 1.15 | 10.3 |
| 16 | 1250 | S11-1250/10 | 0.6 | 1.36 | 12 |
| 17 | 1600 | S11-1600/10 | 0.6 | 1.64 | 14.5 |
Structural characteristics
1, the core
The silicon steel sheet of iron core adopts high quality
cold-rolled orientation 30Q120 or 30QG105 grade, full diagonal
joint, step-type three-stage joint structure type, the side of iron
core is coated with polyurethane adhesive, the upper and lower iron
yoke is clamped with channel steel, and the upper and lower clamps
are tightened with screw.
2, coil
The wire is made of oxygen-free copper, the flat wire is zb-0.45,
the round wire is QQ-2, the high-voltage coil is of layer type, the
low-voltage coil can be divided into ≤500kVA as layer type and ≥
630kVA as new spiral type according to the capacity.
3. Body insulation
In the iron core window, a 25mm thick laminated cardboard coil is
added to the upper end of the coil, which not only strengthens the
main insulation strength, but also improves the axial dynamic
stability of the coil.
Workshop
·Service conditions
1. The maximum ambient air temperature shall not exceed 40 ℃, and
the minimum shall not below - 25 ℃;
2. The altitude shall not exceed 1000m. If special customized
transformers and low-voltage components are used, the altitude can
reach 4000m;
3. The vertical inclination is no more than 5 °, and no violent
vibration and impact;
4. The air humidity is not more than 90% (+ 25 ℃);
5. No gas and conductive dust that will seriously affect the
insulation of transformer, no explosion hazard and corrosion of
electrical components;
6. Outdoor wind speed shall not exceed 35m / s.
7. If service conditions beyond the above, specially customized
product is available.
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