Oil Transformer S11-30kVA

Oil-filled transformers use liquids for cooling, making them highly suitable for outdoor applications. They are more efficient, have longer service lives, and feature more reliable overload capabilities.Transformer is isolated from the rest of the air, to prevent and slow the deterioration of oil and insulation aging, enhance the operation reliability.

S11-10kV Technical Specifications

Rated Power	Voltage Combination			Vector Group/	No-Load Loss	Load Loss(W)		Impedance	No-load Current
(kVA)	H.V(kV)	H.V. Tap Range(%)	L.V(kV)	Connection Method	W	Yy	Dy	%	%
30	6	±5%	0.4	Yyn0	100	600	630	4	1.5
50	6.3	or±2*2.5%		or Dyn11	130	870	910		1.3
63	10				150	1040	1090		1.2
80	10.5				180	1250	1310		1.2
100	11				200	1500	1580		1.1
125					240	1800	1890		1.1
160					280	2200	2310		1
200					340	2600	2730		1
250					400	3050	3200		0.9
315					480	3650	3830		0.9
400					570	4300	4520		0.8
500					680	5150	5410		0.8
630					810	6200	6200	4.5	0.6
800					980	7500	7500		0.6
1000					1150	10300	10300		0.6
1250					1360	12000	12000		0.5
1600					1640	14500	14500		0.5
2000					1940	18300	18300	5	0.4
2500					2290	21200	21200	5	0.4
Operating Condition: 1.Altitude not exceeding 1000 meters
2.Maximum ambient temperature +40°C
3.Maximum daily average temperature +30°C
4.Maximum annual average temperature +20°C
5.Maximum low temperature-25°C
6.Transformers for operation under special conditions are available upon request.

Features:

The company produces three-phase oil-immersed distribution transformers with high efficiency and low loss, which can save a lot of power consumption and operating costs.
The transformer body adopts a new insulation structure, which improves the short-circuit resistance.
The transformer core is made of high-quality cold-rolled silicon steel sheets with high magnetic conductivity.
The transformer core consists of high/low-voltage windings are selected high-quality oxygen-free copper wire, and multi-layer cylindrical structure.
All fasteners with special anti-loosening treatment.
The oil tank is corrugated structure, the cover and the edge of the box are completely welded or fastened with bolts in two types, which fundamentally prolongs the service life of the transformer oil and insulating materials.

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