Description

The S -M series three-phase oil immersed transformer adopts full oil filled and sealed corrugated oil tank. 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-rolled
silicon steel sheet; the high-voltage and low-voltage windings are made of oxygen free copper wires and adopt multi-layer cylindrical 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, and has significant social benefits. It has been widely used in power plants, substations, industrial and mining enterprises, ports, airports and other places.

Model Meaning

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

Normal Environment conditions

Ambient Temperature: No more than +40℃ No less than -25℃, The monthly average temperature is no more than +30℃, The yearly average temperature is no more than +20℃
Altitude: No more than 1000m.
The power supply voltage's wave is similar to a sine wave.
Three-phase power supply voltage is approximately symmetrical.
The total harmonic content of load current shall not exceed 5% of rated current.
Installation Site: Indoor or outdoor.

Product characteristic

The iron core is made of silicon steel sheet with high quality, high performance and high magnetic conductivity, with low no-load loss.
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.
The positioning structure is added to the body to avoid displacement during transportation. At the same time, all fasteners are equipped with fastening nuts to ensure that the fasteners are not loose during long-term operation.
This product is a fully sealed structure. The vacuum oil filling process is adopted when the transformer is packaged, which completely removes the moisture in the transformer, ensures the isolation of the transformer oil from the outside air, prevents the aging of the oil, and improves the operation reliability of the transformer. The product is equipped with pressure relief valve, signal thermometer, gas relay and so on to ensure the safe operation of the transformer.
Corrugated oil tank is adopted. This kind of oil tank has the advantages of simple processing, high mechanical strength, good welding effect and no leakage. And because of the strong fluidity of the oil, the heat dissipation capacity of the product is improved.
The product is beautiful in appearance, small in volume and small in floor area. It is an ideal maintenance free product.

Parameter

1. S11-M 11kV Three Phase Oil Immersed Distribution Transformer

Rated capacity (kvA)	Voltage (kV)	Vector Group	Impedance Voltage (%)	No-load Loss (W)	Load Loss (W)	No-Ioad current (%)	Reference Dimensions(mm) LWH	Total Weight (kg)
30	High Voltage H.V. 6,6.3,6.6,10,10.5,11 ±2×2.5%, ±5% Low Voltage L.V. 0.4	Dyn11 Yyn0 Yzn11	4	100	630/600	1.5	690x510x920	275
50				130	910/870	1.3	730x510x960	340
63				150	1090/1040	1.2	750x550x1000	385
80				180	1310/1250	1.2	790x620x1020	450
100				200	1580/1500	1.1	790x700x1040	520
125				240	1890/1800	1.1	840x800x1070	625
160				280	2310/2200	1.0	1070x670x1130	695
200				340	2370/2600	1.0	1140x750x1140	795
250				400	3200/3050	0.9	1200x800x1190	955
315				480	3830/3650	0.9	1300x860x1210	1085
400				570	4520/4300	0.8	1380x900x1240	1290
500				680	5410/5100	0.8	1450x950x1300	1590
630		Dyn11 Yyn0	4.5	810	6200	0.6	1500x970x1360	1850
800				980	7500	0.6	1660x1140x1400	2210
1000				1150	10300	0.6	1690x1190x1530	2570
1250				1360	12000	0.5	1760x1230x1600	3115
1600				1640	14500	0.5	1800x1250x1660	3520
2000			5	1940	18300	0.4	1930x1360x1490	4060
2500			5	2290	21200	0.4	2080x1360x1570	5105

2. S13-M 11kV Three Phase Oil Immersed Distribution Transformer

Rated capacity (kvA)	Voltage (kV)	Vector Group	Impedance Voltage (%)	No-load Loss (W)	Load Loss (W)	No-Ioad current (%)	Reference Dimensions(mm) LWH	Total Weight (kg)
30	High Voltage H.V. 6,6.3,6.6,10,10.5,11 ±2×2.5%, ±5% Low Voltage L.V. 0.4	Dyn11 Yyn0 Yzn11	4	80	630/600	1.5	695x490x860	260
50				100	910/870	1.3	725x520x955	365
63				110	1090/1040	1.2	750x535x970	415
80				130	1310/1250	1.2	770x565x985	465
100				150	1580/1500	1.1	800x595x1000	545
125				170	1890/1800	1.1	815x670x1010	585
160				200	2310/2200	1.0	1015x645x1055	695
200				240	2370/2600	1.0	1020x650x1115	810
250				290	3200/3050	0.9	1140x730x1120	930
315				340	3830/3650	0.9	1195x785x1175	1075
400				410	4520/4300	0.8	1265x855x1195	1255
500				480	5410/5100	0.8	1325x915x1240	1435
630		Dyn11 Yyn0	4.5	570	6200	0.6	1465x960x1295	1880
800				700	7500	0.6	1515x995x1340	2145
1000				830	10300	0.6	1605x1095x1460	2455
1250				970	12000	0.5	1685x1145x1485	2840
1600				1170	14500	0.5	1775x1225x1580	3310
2000			5	1550	18300	0.4	1855x1265x1600	3960
2500			5	1830	21200	0.4	1885x1305x1780	4980

3. S14-M 11kV Three Phase Oil Immersed Distribution Transformer

Rated capacity (kvA)	Voltage (kV)	Vector Group	Impedance Voltage (%)	No-load Loss (W)	Load Loss (W)	No-Ioad current (%)	Reference Dimensions(mm) LWH	Total Weight (kg)
30	High Voltage H.V. 6,6.3,6.6,10,10.5,11 ±2×2.5%, ±5% Low Voltage L.V. 0.4	Dyn11 Yyn0 Yzn11	4	80	505/480	1.5	785x710x880	370
50				100	730/695	1.3	800x730x940	480
63				110	870/830	1.2	815x720x970	535
80				130	1050/1000	1.2	830x740x990	580
100				150	1260/1200	1.1	875x790x1010	705
125				170	1510/1440	1.1	875x770x1050	775
160				200	1850/1760	1.0	935x820x1140	975
200				240	2180/2080	1.0	995x870x1140	1140
250				290	2560/2440	0.9	995x900x1180	1240
315				340	3060/2920	0.9	1030x880x1250	1425
400				410	3610/3440	0.8	1075x910x1270	1635
500				480	4330/4120	0.8	1120x930x1320	1950
630		Dyn11 Yyn0	4.5	570	4960	0.6	1165x950x1350	2150
800				700	6000	0.6	1210x1050x1390	2515
1000				830	8240	0.6	1520x1020x1450	2635
1250				970	9600	0.5	1630x1090x1540	3210
1600				1170	11600	0.5	1680x1150x1600	3905
2000			5	1550	14600	0.4	1890x1300x1600	4130
2500			5	1830	16900	0.4	1990x1360x1700	5250

Oil Immersed Transformer

11kV Three Phase Oil Immersed Distribution Transformer