Oil Immersed Transformer

●Using conditions of Oil immersed Transformer

▶Altitude not exceeding 1000m;

▶Ambient temperature:

▶Maximum temperature+40 'C;

▶The average temperature of the hottest month is+ 30 "Co Maximum annual average temperature+20°▶The minimum outdoor temperature is -25C

● Oil immersed Transformer meet the Standards

GB1094.2-1996

GB1094.5-2003

GB/T7595-1987

JB/T10088-2004

GB/T10237-1988

GB/T3837-2010

◆ High quality material selection

▶Our Oil immersed Transformer choose oxygen Tree copper wire with lower  resistivity and undergo a series of additional surface treatments to make it smoother ，without burrs or sharp corners, resulting in lower load loss and more reliable electrical performance of the transformer.e Select high-quality silicon steel sheets, and with the improvement of performance level, use silicon steel sheets with lower unit loss to reduce the no-load loss of transformers.

▶Select high-quality laminated wood insulation components that will never crack, even under the action of short-circuit current, they

will remain intact.

▶Choose transformer oil that has been deeply filtered, with lower levels of water, gas, and impurities, making transformer operation more reliable.

▶Select high-quality rubber sealing materials to effectively prevent aging and eliminate leakage.* All raw materials undergo quality inspection, and all raw material manufacturers undergo strict review in accordance with the national standard IS09000.

◆ Cost-effective

The s9 series Oil immersed Transformer have reduced no-load losses, load losses, and no-load currents by 10%, 24%, and 46% respectively compared to the S7 series, resulting in a 19% reduction in operating costs.On the basis of the s9 series, the S11 series products have reduced the average no-load loss by 30%; The no-load current decreases by 70-85% compared to S9; The average temperature rise is reduced by 10K, and the product's service life is more than doubled.Even under overload conditions of 20%, it can still operate for a long time; The average noise reduction during product operation is 2-4decibels.

◆ Fully sealed

The “M” in S11 (M) R represents that the oil tank adopts a fully sealed structure, Compared with ordinary oil immersed transformers fully sealed distribution transformers eliminate oil storage tanks and replace oil pipes with corrugated fins as cooling and heat dissipation components. The corrugated oil tank is made of high-quality cold-rolled thin plates on a dedicated production line and the corrugated fins can expand and contract with the volume of transformer oi, thereby isolating the transformer from the atmosphere, preventing and slowing down oil degradation and insulation moisture, enhancing operational reliability, and maintenance free normal operation.

The surface of the corrugated oil tank is treated with degreasing, rust removal, and phosphating before being coated with a three proof paint, which is suitable for use in metallurgical, petrochemical, mining, and other environments.

◆ Appearance and installation dimensions of Oil immersed Transformer 

◆Technical parameters of 10kV D11 series oil immersed distribution transformer