S11 Three-Phase Oil-Immersed Distribution Transfo | RFQ Sourcing Details
Pad Mounted Transformers · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Pad Mounted Transformers. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
This S11 three-phase distribution transformer is described as an oil-immersed, two-winding unit for voltage conversion and power distribution. The listed configuration uses a laminated, near-circular silicon-steel core and copper or aluminum windings.
Rated capacities span 30–3000 kVA, with listed input voltages from 10 kV to 110 kV and output options of 400 V, 440 V, or 480 V. Frequency is specified as 50/60 Hz. The transformer listing identifies ONAN and ONAF cooling methods.
ONAN uses natural oil circulation and natural air cooling, while ONAF adds forced-air cooling. The described assembly includes a tank, insulating oil, radiators, bushings, a tap changer, pressure-relief equipment, temperature monitoring, and other oil-transformer components.
The exact accessories and cooling arrangement supplied with a particular unit should be established in the technical schedule. The listed temperature guidance sets a maximum top-oil temperature of 90°C, recommends 85°C for longevity, and identifies an 80°C alarm point.
Emergency loading is described as 1.1–1.2 times rated current, with load and temperature monitoring required after an alarm. Buyers should treat these as listed operating parameters and obtain project-specific confirmation before incorporating them into protection settings or operating procedures.
Although the product heading references pad-mounted enclosures, compact substations, and prefabricated electrical rooms, the detailed description identifies an oil-immersed S11 transformer rather than a dry-type transformer.
Before ordering, confirm the required enclosure, installation arrangement, environmental conditions, voltage ratio, vector group, impedance, tap range, insulation level, losses, temperature rise, winding conductor, cooling mode, accessories, and applicable testing standard.
Also request approved drawings and a complete nameplate data schedule to ensure the offered configuration matches the electrical system and installation space.
S11 | Applications and Buyer Notes
S11 is organized as a sourcing-ready Pad Mounted Transformers reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time ques
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Pad Mounted TransformersBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Model
- S11Based on visible page data; confirm exact value in the RFQ.
- Phase
- Three-phaseBased on visible page data; confirm exact value in the RFQ.
- Frequency
- 50/60 HzBased on visible page data; confirm exact value in the RFQ.
- Product type
- Oil-immersed three-phase distribution transformerBased on visible page data; confirm exact value in the RFQ.
- Input voltage
- 10–110 kVBased on visible page data; confirm exact value in the RFQ.
- Rated capacity
- 30–3000 kVABased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
These terms come from the title, visible copy and specifications, and link into matching aggregate pages.
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