S13-M (SM11 upgrades) Oil immersed distribution outdoor transformer

Rated
1. Capacity: 10kVA up to 31500kVA
2. High Voltage: 3.3kV up to 35kV
3. Connection Method: Optional
4.Rated Low Voltage: 0.4kV 3.15kV 6.3kV 6.6kV10.5kV
5.Rated frequency:50Hz
6.HV tap range: ±2.5%, ±5%
7.Material: Full copper Winding
Service conditions of Oil immersed distribution outdoor transformer
Device types: |
outdoor type |
Ambient temperature: |
|
Maximum |
+40°C |
Maximum 24 hour average |
+35°C |
Minimum |
-25°C (-45°C when you order details0 |
Ambient humidity: |
|
Height above sea level at site |
less than 1000m |
Earthquake intensity |
less than 8 degree |
Height above sea level |
less than 1000m |
Mounting ambicnt: |
No fire, explosion, earthquake and chemical corrosion environments. |
Technical parameters of SZ11 SZ13
1. S13-M Type 6~10 kV
Performance parameters
Rated capacity(KVA) | Voltage Combination and tap range | connection of transformer winding | No-load loss(W) | Load loss (W) | No-load current (%) | Short circuit impedance (%) | ||
High voltage (KV) |
High voltage tap range ( %) |
Low voltage (KV) |
||||||
30 50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 16002000 2500 |
6 6.3 6.6 10 10.5 11 |
±5% ±2x2.5% |
0.4 | Dyn11 Yzn11 Yyn0 |
80 100 110 130 150 170 200 240 290 340 410 480 570 700 830 970 11701550 1830 |
630/600 910/870 1090/1040 1310/1250 1580/1500 1890/1800 2310/2200 2730/2600 3200/3050 3830/3650 4520/4300 5410/5150 6200 7500 10300 12000 1450018300 21200 |
1.8 1.6 1.6 1.5 1.4 1.4 1.3 1.2 1.2 1.1 1.1 1.0 0.9 0.8 0.8 0.7 0.60.4 0.4 |
4 4 4 4 4 4 4 4 4 4 4 4 4.5 4.5 4.5 4.5 4.55.0 5.0 |
Dyn11 Yyn0 |
2. S13-M Type 20 kV
Performance parameters
Rated capacity(KVA) | Voltage Combination and tap range | connection of transformer winding | No-load loss(W) | Load loss (W) | No-load current (%) | Short circuit impedance (%) | ||
High voltage (KV) |
High voltage tap range ( %) |
Low voltage (KV) |
||||||
50 100 125 160 200 250 315 400 500 630 800 1000 1250 16002000 2500 |
20 22 24 |
±5% ±2x2.5% |
0.4 | Dyn11 Yyn0 Yzn11
|
100 150 170 200 240 290 340 410 480 570 700 830 970 11701550 1830 |
1270/1210 2120/2020 2500/2380 2970/2830 3500/3330 4160/3960 5010/4770 6050/5760 7280/6930 8280 9900 12150 14670 1755019140 22220 |
2.0 1.80 1.70 1.60 1.50 1.40 1.40 1.30 1.20 1.10 1.00 1.00 0.90 0.800.60 0.50 |
5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 6.0 6.0 6.0 6.0 6.06.0 6.0 |
3. S13-M Type 35 kV
Performance parameters
Rated capacity(KVA) | Voltage Combination and tap range | connection of transformer winding | No-load loss(W) | Load loss (W) | No-load current (%) | Short circuit impedance (%) | ||
High voltage (KV) |
High voltage tap range ( %) |
Low voltage (KV) |
||||||
50 100 125 160 200 250 315 400 500 630 800 1000 1250 16002000 2500 |
35
38.5 |
±5% ±2x2.5% |
0.4 | Dyn11 Yyn0 |
170 230 270 290 340 410 490 580 690 830 980 1150 1410 17001590 1890 |
1270/1210 2120/2020 2500/2380 2970/2830 3500/3330 4160/3960 5010/4770 6050/5760 7280/6930 8280 9900 12150 14670 1755019700 23200 |
2.0 1.80 1.70 1.60 1.50 1.40 1.40 1.30 1.20 1.10 1.00 1.00 0.90 0.800.75 0.75 |
6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.56.5 6.5 |
Structural drawing of S13-M Type
10kv to 22kv Transformer Structure

30kv to 35kv Transformer Structure

Manufacture:
Core: effectively upgrade transformer's no-load performance by below methods:
1) The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with the cut burs controlled within 0.02mm.
2) The silicon sheet fabrication adopts "no-upper yoke lapped' technology, effectively improves no-load performance and reduces noises.
3) . The iron yoke is tied with epoxy resin-impregnated glass fiber band, and the lower section of oil tank is tightened with counter-pressure bolts. It can withstand the vibration during transportation without any shift.
Winding:
1) The high-voltage (HV) coil adopts an interleaved-continuous structure to improve the voltage characteristics under impact voltage and make voltage evenly distributed.
2) In the transformer winding there is a zigzag oil guide structure so as to fully cool , lower the temperature rise and prolong the service life
3) The winding adopts radial "0" margin designed, fully dried and tightly matched to ensure extremely good compactness and concentricity of the entire winding.
Oil tank and accessories
1) The tank wall adopts wide steel sheet, which will be folded into corrugated structure without splicing, in this way welds are decreased and mechanical strength is enhanced, meanwhile, the corrugated wall has diverging effect, and decrease of noise.
2) All sealing surface use quality sealing material and are precision-machined.
3) On the edge of the tank there are double sealing grooves, to protect the inner sealing being damaged, thus at utmost prolonging service life and enhancing reliability of the seal.

Features
S13-M transformer significant energy saving, uniform magnetic circuit, low no-load loss, low noise, low temperature rise, high efficiency, significant energy saving effect of distribution transformers. Using the new core material, and uniform distribution of the magnetic circuit, greatly reduces the load excitation current and no-load loss. As the core of the oblique three -seam construction, so reliable operation, small size, light weight, and available for residential areas, commercial street, industrial and mining enterprises and rural Power and lighting purposes.
Long service life, transformer core with new core material, and greatly reduce the loss significantly extending the life of the transformer.
Small footprint, the core is made from high quality cold rolled grain oriented silicon steel sheet; high, low voltage winding made of high quality oxygen-free copper wire and multilayer tact process structure; All fasteners are used special relax treatment, the high mechanical strength, and transformer sizes small, light weight, and the fully sealed tank, can be widely used in various environments.