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.

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