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10kV Oil Immersed Transformer

Overview
The oil immersed power transformer is composed of core, coil, voltage regulating switch, oil tank and other components, and the dielectric material is dielectric oil.
Download:
SOJO Transformer Brochure.pdf
Description
 The oil immersed power transformer is used for regulating voltage and AC power transmission. The advantages include small dimension, reasonable price, strong weather resistance and so on. It is applicable to power systems, industrial and mining enterprises, transportation, post and telecommunications sector, research institutes, etc. A variety of transformers under 110kV are included in the product line: the stacked iron core structure series, the rolled iron core structure series, amorphous alloy series, etc. Smart and diverse structures and nice appearance make this product to meet the needs of different users.
Model Explaination

Features
Core High-quality grain-oriented cold-rolled silicon steel sheet are employed, and the whole oblique non-porous banding structure are used here. The core has a multi-level ladder shape, with three joints or five joints, which is of low no-load loss and low noise. Rolled cores are direct rolled by certain special equipment, which gives the advantages including no seam, no corner weight, reluctance reduction, low no-load loss. Amorphous alloy is an advanced core material, which leads to an average reduction of 72% no-load loss and a reduction of 50% no-load current.
Coil The high-quality QQ acetal enameled round copper wire and oxygen-free copper rod are used to form the coil. The coil type includes cylinder type, continuous type, new type spiral type, split type, etc. It has sufficient electrical strength, mechanical strength and cooling capacity. In order to increase the capacity of anti-short-circuit of the transformer, self-adhesive transposition wire is used in the 35kV and above windings. The wire is made of self-adhesive acetal enameled flat wire, and after winding into a coil, it is heated so that the flat wire could be bonded between each other to form a rigid coil, which can withstand greater bending stress, thereby enhancing the capacity of anti-short-circuit of the transformer. The most important feature of the self-adhesive transposition wire is that it can reduce the loss of the transformer, and as a result of multi-stranded conductor with transposition, the eddy current loss and circulation loss are greatly reduced, it can also reduce the temperature rise of the partial hot spots of winding, thus the winding temperature distribution is more uniform.
Oil tank  The oil tank is made of high quality steel plate, and the shape includes elliptical shape, rectangular shape, etc. The type of the radiator includes: corrugated sheet type radiator, expansion type radiator and corrugated type tank. The sealing performance test is conducted on oil tanks. The inside and outside surfaces are pickling and phosphate treated, and then spray priming paint for three times and surface paint for one time, which give its corrosion resistance.
Normal service condition Ambient air temperature Maximum temperature: +40℃ Minimum temperature: -45℃ Average temperature of the warmest month: +30℃ The hottest annual average temperature: +20℃ Altitude: ≤ 1000m Contamination class: III; Seismic intensity: VIII Power supply voltage waveform: approximately sinusoidal;
Note: If the above conditions are exceeded, please specify when ordering, for special consideration.
Parameters
1、S11 10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Model Rated Capacity(kVA) Voltage (kV) Vector Group Impedance Voltage(%) Total Weight(t) Reference Dimensions(mm)
L*W*H
No-load Loss (W) Load Loss (W)
S11-30/10 30 High Voltage H.V. 
6,6.3,10,10.5 
±2×2.5% 
±5% 
Low Voltage L.V. 
0.4 
Dyn11
Yyn0
4 0.35 720*480*850 100 630/600
S11-50/10 50 0.4 750*500*900 130 910/870
S11-63/10 63 0.5 800*600*950 150 1090/1040
S11-80/10 80 0.55 1000*720*980 180 1310/1250
S11-100/10 100 0.6 1050*750*1000 200 1580/1500
S11-125/10 125 0.7 1100*760*1050 240 1890/1800
S11-160/10 160 0.75 1120*770*1070 280 2310/2200
S11-200/10 200 0.8 1150*800*1100 340 2730/2600
S11-250/10 250 1 1300*950*1100 400 3200/3050
S11-315/10 315 1.2 1400*1000*1100 480 3830/3650
S11-400/10 400 1.4 1400*1000*1200 570 4520/4300
S11-500/10 500 2 1700*1200*1400 680 5410/5150
S11-630/10 630 4.5 2.5 1800*1300*1500 810 6200
S11-800/10 800 2.8 2150*1950*2000 980 7500
S11-1000/10 1000 3.2 2200*2000*2050 1150 10300
S11-1250/10 1250 3.7 2300*2100*2100 1360 12000
S11-1600/10 1600 4.5 2400*2200*2200 1640 14500
S11-2000/10 2000 5 5.5 2500*2400*2300 1940 18300
S11-2500/10 2500 6.4 2700*2600*2500 2290 21200


2、S13 10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer

Model Rated Capacity(kVA) Voltage (kV) Vector Group Impedance Voltage(%) Total Weight(t) Reference Dimensions(mm)
L*W*H
No-load Loss (W) Load Loss (W)
S13-30/10 30 High VoltageH.V. 
6,6.3,10,10.5 
±2×2.5% 
±5% 
Low Voltage L.V. 
0.4
Dyn11
Yyn0
4 0.35 720*480*850 80 630/600
S13-50/10 50 0.4 750*500*900 100 910/870
S13-63/10 63 0.5 800*600*950 110 1090/1040
S13-80/10 80 0.55 1000*720*980 130 1310/1250
S13-100/10 100 0.6 1050*750*1000 150 1580/1500
S13-125/10 125 0.7 1100*760*1050 170 1890/1800
S13-160/10 160 0.75 1120*770*1070 200 2310/2200
S13-200/10 200 0.8 1150*800*1100 240 2730/2600
S13-250/10 250 1 1300*950*1100 290 3200/3050
S13-315/10 315 1.2 1400*1000*1100 340 3830/3650
S13-400/10 400 1.4 1400*1000*1200 410 4520/4300
S13-500/10 500 2 1700*1200*1400 480 5410/5150
S13-630/10 630 4.5 2.5 1800*1300*1500 570 6200
S13-800/10 800 2.8 2150*1950*2000 700 7500
S13-1000/10 1000 3.2 2200*2000*2050 830 10300
S13-1250/10 1250 3.7 2300*2100*2100 970 12000
S13-1600/10 1600 4.5 2400*2200*2200 1170 14500
S13-2000/10 2000 5 5.5 2500*2400*2300 1390 18300
S13-2500/10 2500 6.4 2700*2600*2500 1650 21200

3.S13-M.RL 10kV Three Phase Oil Immersed Wound Core Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer
Model Rated Capacity(kVA) Voltage (kV) Vector Group Impedance Voltage(%) Total Weight(t) Reference Dimensions(mm)
L*W*H
No-load Loss (W) Load Loss (W)
S13-M.RL-30/10 30 High Voltage H.V.
6,6.3,10,10.5
±2×2.5%
±5%
Low VoltageL.V.
0.4
Dyn11
Yyn0
4 0.35 0.8*0.7*0.8 80 630/600
S13-M.RL -50/10 50 0.45 1*0.85*0.95 100 910/870
S13-M.RL -63/10 63 0.5 1.1*0.8*1.2 110 1090/1040
S13-M.RL -80/10 80 0.58 1.1*0.8*1.35 130 1310/1250
S13-M.RL -100/10 100 0.65 1.1*0.8*1.35 150 1580/1500
S13-M.RL -125/10 125 0.7 1.1*0.85*1.4 170 1890/1800
S13-M.RL -160/10 160 0.8 1.1*0.95*1.42 200 2310/2200
S13-M.RL -200/10 200 0.95 1.15*1*1.5 240 2730/2600
S13-M.RL -250/10 250 1.1 1.2*1.1*1.5 290 3200/3050
S13-M.RL -315/10 315 1.3 1.3*1.12*1.5 340 3830/3650
S13-M.RL -400/10 400 1.45 1.35*1.2*1.55 410 4520/4300
S13-M.RL -500/10 500 1.9 1.5*1.3*1.6 480 5410/5150
S13-M.RL -630/10 630 4.5 2.1 1.5*1.3*1.7 570 6200
S13-M.RL -800/10 800 2.5 1.55*1.35*1.75 700 7500
S13-M.RL -1000/10 1000 3 1.75*1.5*1.75 830 10300
S13-M.RL -1250/10 1250 3.5 1.8*1.5*1.9 970 12000
S13-M.RL -1600/10 1600 4.5 1.9*1.7*2 1170 14500

4.SH15 10kV Three Phase Oil Immersed Natural Air Cooling Double Winding Off Circuit Tap Changing Distribution Transformer With Amorphous Alloy Core
Model Rated Capacity(kVA) Voltage (kV) Vector Group Impedance Voltage(%) Total Weight(t) Reference Dimensions(mm)
L*W*H
No-load Loss (W) Load Loss (W)
SH15-30/10 30 High Voltage H.V.
6,6.3,10,10.5
±2×2.5%
±5%
Low Voltage L.V.
0.4
Dyn11
Yyn0
4 0.4 1000*550*700 33 630/600
SH15-50/10 50 0.6 1100*600*700 43 910/870
SH15-63/10 63 0.65 1100*650*900 50 1090/1040
SH15-80/10 80 0.7 1150*650*900 60 1310/1250
SH15-100/10 100 0.65 1200*700*900 75 1580/1500
SH15-125/10 125 0.83 1250*950*900 85 1890/1800
SH15-160/10 160 0.9 1300*1100*900 100 2310/2200
SH15-200/10 200 1 1400*1000*900 120 2730/2600
SH15-250/10 250 1.4 1600*1100*950 140 3200/3050
SH15-315/10 315 1.6 1700*1100*970 170 3830/3650
SH15-400/10 400 1.7 1750*1100*1000 200 4520/4300
SH15-500/10 500 2.3 1800*1100*1100 240 5410/5150
SH15-630/10 630 4.5 2.6 1900*1100*1100 320 6200
SH15-800/10 800 2.9 2000*1500*1200 380 7500
SH15-1000/10 1000 3.5 2100*1600*1350 450 10300
SH15-1250/10 1250 4.5 2200*1700*1350 530 12000
SH15-1600/10 1600 6 2300*1900*1400 630 14500
SH15-2000/10 2000 7 2400*2000*1700 750 18300
SH15-2500/10 2500 9 2550*2500*1700 900 21200