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S11 series 400kVA 10kV three-phase oil-immersed distribution transformer

S11 series 400kVA 10kV three-phase oil-immersed distribution transformer

  • Category:Power transformer series
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  • Release time:2025-09-15 09:43:26
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Product Introduction:

The S11-M series fully-sealed oil-immersed power transformers feature advantages such as low loss, low noise, and high efficiency, achieving significant energy savings and reducing pollution. Compared to conventional oil-immersed transformers, the fully-sealed transformer eliminates the oil storage tank. Instead, the volume change of the oil is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated tank.The transformer is isolated from the air, which helps prevent and slow down oil deterioration and insulation aging, enhancing operational reliability and requiring no maintenance during normal operation.



 Product features:
The transformer core is made from imported high-quality cold-rolled silicon steel sheets, which significantly reduce no-load losses and no-load current. Additionally, the core is strapped to ensure its tightness and to reduce noise.
The high and low-voltage windings are made of oxygen-free copper. For low-voltage windings up to 500 kVA, a double-layer cylindrical structure is used. While for 630 kVA and above, a double-helix or quadruple-helix structure is employed. The high-voltage windings use a multi-layer cylindrical structure.
The transformer uses a Dyn11 connection group to reduce harmonic effects on the power grid and improve power quality. It features a fully-sealed structure, which extends its service life and eliminates the transformer suspension core and maintenance.


Company Profile:

Jiangsu XinHong Transformer. For over 25 years, we have been designing and manufacturing high-performance, energy-efficient transformers for a global clientele.

To quickly introduce our operational capacity and commitment to excellence, please see the summary below:

Engineering Expertise: Our dedicated R&D team of senior engineers focuses on innovation and custom solutions, ensuring technical superiority and reliability in every product.

Manufacturing Scale: Our modern, 50,000-square-meter production facility enables an annual output exceeding 20,000 units, guaranteeing both large-scale capacity and consistent quality control.

Product Performance: We specialize in energy savings. Our advanced transformers are proven to reduce energy loss by over 30%, significantly cutting operational costs for our clients.

Global & Local Support: Our products are trusted in over 20 countries worldwide. We back every shipment with reliable, 7/24 product support andAfter-sales Service to ensure uninterrupted operation and peace of mind.



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Mainly engaged inTransformers, box-type substations, complete sets of high and low voltage switchgear, Welcome to inquire!