Medium Voltage Energy-saving Oil Immersed Transformer for Power

Overview 

The S11 series oil-immersed transformer is a high-efficiency, energy-saving power transformer designed with a fully sealed structure, primarily used in 10kV, 50Hz power transmission and distribution systems. It is widely applicable for power and lighting supply in residential areas, commercial streets, industrial and mining enterprises, as well as rural areas. This transformer utilizes advanced technologies and materials in its design and manufacturing to achieve goals of low loss, low noise, and high efficiency, while also reducing maintenance requirements and environmental pollution.

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Environmental Conditions

• Maximum ambient temperature: +40℃

• Minimum ambient degree: -25℃

• altitude: < 1000m

• Maximum monthly average relative humidity: 90%(20℃)

• Installation location: installed in a place without fire, explosion danger, serious pollution, chemical corrosion and violent  vibration, indoor or outdoor.
  

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Product Features

• Reduced Losses: Utilizing premium silicon steel sheets and an optimized core structure, the S11 series dramatically lowers both no-load and load losses, manifesting in significant energy savings.

• Minimized Noise: Through an innovative core structure and winding arrangement, coupled with advanced noise reduction technology, operational noise is substantially mitigated, ensuring a quieter environment for users.

• Fully Sealed Design: The transformer's fully sealed corrugated oil tank design isolates it from external air, preventing oil contamination and moisture ingress, thereby improving insulation strength and extending its lifespan.

• Enhanced Efficiency: The adoption of high-performance materials and forward-thinking design not only achieves reduced losses but also promotes efficient operation, leading to lower energy consumption and operational cost.

• Robust Short-circuit Resistance: A specially designed winding configuration enhances the transformer's resilience against short-circuits, safeguarding the stability of the power grid and the safety of the electrical system.

• Ease of Maintenance: The fully sealed construction diminishes the need for regular maintenance, while the thoughtful design allows for straightforward inspections and maintenance, streamlining routine upkeep and troubleshooting.
  

Technical Data

Model number	Rated capacity	Join group label	Voltage combination>(kV)			No-load loss	Load loss	No-load current	Short circuit impedance	Dimensions(mm)			Weight(kg)		Gauge
	kVA	Yyn0 or Dyn11	High tension	Tapping range	Low pressure	W	W	%	%	L	W	H	Oil	Weight	mm
S11-M-30	30		6 6.3 10 10.5 11	±5% or ±2×2.5%	0.4	100	600	2.3	4.0	740	665	875	74	283	400*500
S11-M-50	50					130	870	2.0	4.0	770	675	965	88	362	400*500
S11-M-63	63					150	1040	1.9	4.0	820	700	1020	112	442	450*500
S11-M-80	80					180	1250	1.9	4.0	835	705	1040	117	481	450*500
S11-M-100	100					200	1500	1.8	4.0	850	715	1055	122	520	450*500
S11-M-125	125					240	1800	1.7	4.0	1180	740	1115	154	667	500*500
S11-M-160	160					280	2200	1.6	4.0	1225	775	1175	176	788	500*500
S11-M-200	200					340	2600	1.5	4.0	1245	790	1195	193	898	500*500
S11-M-250	250					400	3050	1.4	4.0	1340	880	1230	209	1027	550*500
S11-M-315	315					480	3650	1.4	4.0	1425	935	1260	234	1177	550*500
S11-M-400	400					570	4300	1.3	4.0	1470	955	1330	265	1399	550*600
S11-M-500	500					680	5100	1.2	4.0	1490	960	1405	283	1576	550*600
S11-M-630	630					810	6200	1.1	4.5	1585	1030	1370	317	1771	660*660
S11-M-800	800					980	7500	1.0	4.5	1675	1090	1480	366	2128	660*820
S11-M-1000	1000					1150	10300	1.0	4.5	1775	1175	1530	402	2379	660*820
S11-M-1250	1250					1360	12800	0.9	4.5	1965	1155	1700	542	3023	820*820
S11-M-1600	1600					1460	14500	0.8	4.5	2055	1210	1800	616	3591	820*820

 

Model number	Rated capacity	Join group label	Voltage combination (kV)			No-load loss	Load loss	No-load current	Short circuit impe dance	Model number	Rated capacity	Join group label	Voltage combination(kV)			No-load loss	Load loss	No-load current	Short circuit impe dance
	kVA	Dyn11	High tension	Tapping range	Low pressure	W	W	%	%		kVA	Dyn11	High tension	Tapping range	Low pressure	W	W	%	%
S11-M-30	30		20	±5% or ±2×2.5%	0.4	90	660	2.1	5.5	S11-M-315	315		20	±5% or ±2×2.5%	0.4	480	4010	1.1	5.5
S11-M-50	50					130	960	2.0	5.5	S11-M-400	400					570	4730	1.0	5.5
S11-M-63	63					150	1145	1.9	5.5	S11-M-500	500					680	5660	1.0	5.5
S11-M-80	80					180	1370	1.8	5.5	S11-M-630	630					810	6820	0.9	6.0
S11-M-100	100					200	1650	1.6	5.5	S11-M-800	800					980	8250	0.8	6.0
S11-M-125	125					240	1980	1.5	5.5	S11-M-1000	1000					1150	11330	0.7	6.0
S11-M-160	160					290	2420	1.4	5.5	S11-M-1250	1250					1350	13200	0.7	6.0
S11-M-200	200					330	2860	1.3	5.5	S11-M-1600	1600					1630	15950	0.6	6.0
S11-M-250	250					400	3350	1.5	5.5

   Note: The 20KV transformer can be according to customer requirements, the high voltage test can produce double voltage connection, the transformer input end can be easily  converted according to the difference of the two voltages of the net hole 2OKV and 1OKV by using the transfer switch.

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