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Designed for efficiency and continuous operation, the S11-M-315/10-0.4 315kVA 10/0.4kV 3-phase oil immersed distribution transformer provides stable voltage conversion for medium-load requirements. As a direct source manufacturer, we supply these robust units specifically for small factories, apartment buildings, commercial complexes, and rural substations.
This 315kVA transformer is fully sealed and maintenance-free, reducing long-term operational costs. It is built within a corrugated tank and designed to be pole-mountable (applicable for capacities ≤315kVA). Manufactured with a CRGO core and 100% copper windings, the unit ensures optimal conductivity and reduced energy loss. It utilizes an ONAN cooling system and supports Dyn11 / Yyn0 connections, fully complying with international IEC 60076 standards.
Parameter | Specification |
Rated Capacity | 315 kVA |
Primary Voltage | 10 kV |
Secondary Voltage | 400 V |
Frequency | 50/60 Hz |
No-load Loss | ≤ 480 W (S11 series) |
Load Loss | ≤ 3470 W (S11 series) |
Impedance | 4% |
No-load Current | ≤ 0.6% |
Cooling Method | ONAN |
Winding Material | Copper |
Core Material | CRGO |
Tank Type | Corrugated, fully sealed |
To accommodate specific engineering requirements and site conditions, this distribution transformer can be customized with various optional accessories. Available industrial add-ons include an oil level gauge, thermometer, heavy-duty enclosure, casters, and specialized bushings. Contact our engineering and sales team to review the technical datasheet, confirm the minimum order quantity (MOQ), and request a formal wholesale quote.
