Oil-immersed Transformer

S11-M Series Oil-Immersed Power Transformer

The S11-M series three-phase oil immersed transformer produced by the company adopts full oil filled and sealed corrugated oil tank. The ol tank shell adapts to the oil expansion performance with its own elasticity and meets the heat dissipation requirements.


The body adopts a new insulation structure to improve the short-circuit resistance, the core is made of high-quality cold-rolledsiicon steel sheet; the high-voltage and low-voltage windings are made of oxvgen free copper wires and adopt multi-laver cylindricalstructure; all fasteners adopt special anti-loosening treatment.


Product Introduction

The S11-M series three-phase oil immersed transformer produced by the company adopts full oil filed and sealed corrugated oiltank. The oil tank shell adapts to the oil expansion performance with its own elasticity and meets the heat dissipation requirements.

The body adopts a new insulation structure to improve the short-circuit resistance, the core is made of high-quality cold-rolledsilicon steel sheet, the high-voltage and low-voltage windings are made of oxygen free copper wires and adopt multi-layer cylindrica structure; all fasteners adopt special anti-loosening treatment.

The product has the characteristics of high efficiency and low loss, can save a lot of power consumption and operating costs, andhas significant social benefits, it has been widely used in power plants, substations, industrial and mining enterprises, ports, airportsand other places.

Model Meaning

S11-M Series Oil-Immersed Power Transformer

Standards

IEC60076-1:2011 Power transformers-Part 1: General

IEC60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers

IEC 60076-3:2013+AMD1:2018 Power transformers - Part 3: insulation levels, dielectric tests and external clearances in air

IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit

IEC 60076-10:2016 Power transformers - Part 10: Determination of sound levels

XUANCHEN ELECTRIC CO.,LTD.

Normal Environment Conditions

Ambient Temperature: No more than +40°C

No less than -25°C

The monthly average temperature is no more than +30°C

The yearly average temperature is no more than +20°C

Altitude: No more than 1000m.

The power supply voltage's wave is similar to sine wave.

Three-phase power supply voltage is approximately symmetrical.

The total harmonic content of load current shall not exceed 5% of ratedcurrent;

installation Site: indoor or outdoor.

Product Characteristic

1. The iron core is made of silicon steel sheet with high quality, high performance and high magnetic conductivity, with low no-load loss.

2. High voltage winding adopts layer structure. Low voltage winding 500KVA and below is layer type, 630kvA and above products adopt new spiral type. High mechanical strength, balanced ampere turn distribution, strong short circuit resistance.

3. The positioning structure is added to the body to avoid displacement during transportation. At the same time, all fasteners areequipped with fastening nuts to ensure that the fasteners are not loose during long-term operation.

4. This product is a fuly sealed structure. The vacuum oilfling process is adopted when the transformer is packaged, which completelyremoves the moisture in the transformer, ensures the isolation of the transformer oil from the outside air, prevents the aging of theol, and improves the operation reliability of the transformer, The product is equipped with pressure relief valve, signal thermometergas relay and so on to ensure the safe operation of the transformer.

5. Corrugated oil tank is adopted. This kind of oiltank has the advantages of simple process, high mechanical strength, good weldingeffect and no leakage. And because of the strong fluidity of the oil, the heat dissipation capacity of the product is improved.

6. The product is beautiful in appearance, small in volume and small in floor area. it is an ideal maintenance free product.


S11-M Series Oil-Immersed Power Transformer


Technical Parameter

Rated
capacity
  (kvA)
Voltage combinationConnected group
label
No-loaddissipation(w)Load dissipation(W)75℃No-loadcurrent(%)Impedancevoltage(%)
Exterior Size(LxWxH)Total Weight (kg)
High voltage(kv)Tapping rangeLow voltage
30 
6
6.3
6.6
10
10.5
11
±5
±2x2.5
0.4 Dyn11
Yyn0
Yzn11
100 630/6001.5 4.0 690 510 920 275 
50 130 910/8701.3 730 510 960 340 
63 150 1090/10401.2 750 550 000 385 
80 180 1310/12501.2 790 620 1020 450 
100 200 1580/15001.1 790 700 1040 520 
125 240 1890/18001.1 840 800 1070 625 
160 280 2310/22001.0 1070 670 1130 695 
200 340 2730/26001.0 1140 750 1140 795 
250 400 3200/30500.9 1200 800 1190 955 
315 480 3830/36500.9 1300 860 1210 1085 
400 570 4520/43000.8 1380 900 1240 1290 
500 680 5410/51000.8 1450 950 1300 1590 
630 Dyn11
Yyn0
810 6200 0.6 4.5 1500 970 1360 1850 
800 980 7500 0.6 1660 1140 1400 2210 
1000 1150 10300 0.6 1690 1190 1530 2570 
1250 1360 12000 0.5 1760 1230 1600 3115 
1600 1640 14500 0.5 1800 1250 1660 3520 
2000 1940 18300 0.4 1930 1360 1700 4060 
2500 2290 21200 0.4 2080 1360 1750 5105 


Dimensions

S11-M Series Oil-Immersed Power Transformer

Notes: The dimensions and weights provided are only for reference in desiqn and selection.The final size and weight are subiect to our product drawings

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