SB-500/10.5 Three-Phase Oil-Immersed Distribution | RFQ Sourcing Details
Transformers And Substation Equipment · 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: Transformers And Substation Equipment. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
The SB-500/10.5 is a three-phase, core-type, two-winding oil-immersed transformer intended for power and distribution transformer duties. The stated configuration uses transformer oil as its principal insulation and cooling medium.
Listed cooling approaches include oil-immersed self-cooling, oil-immersed air cooling, and forced oil circulation. The published series covers rated capacities from 30 to 2,500 kVA. Listed high-voltage selections are 6, 6.3, 6.6, 10, 10.5, and 11 kV, with a stated low-voltage rating of 0.4 kV.
Available tap ranges are ±2 × 2.5% and ±5%, while listed connection-group options include Dyn11, Yzn11, and Yyn0. The product information identifies a power-frequency design and an M-shaped core.
It also describes major assemblies such as the core, windings, oil tank, voltage-regulating device, radiator, oil reservoir, gas relay, insulation bushings, and pressure-relief or explosion-protection components.
Published normal-service conditions specify installation below 1,000 m elevation, a maximum ambient temperature of +40°C, a maximum daily average of +30°C, a maximum annual average of +20°C, and a minimum outdoor temperature of -25°C.
Applications outside these conditions should be treated as special-service installations and reviewed before configuration approval. Performance values vary by capacity and selected design.
The supplied table lists no-load loss from 33 W to 860 W, no-load current from 1.5% to 0.2%, and impedance voltage values of 4%, 4.5%, or 5% across the series.
Because the source also presents separate example performance figures that do not map clearly to every rating, buyers should request a model-specific guaranteed data sheet rather than applying a single efficiency or loss value to the entire range.
Before procurement, confirm the required transformer model and capacity, primary and secondary voltages, tap range, connection group, circuit wiring scheme, cooling arrangement, and any special electrical-component requirements.
Also confirm the applicable standards and certificates for the exact supplied unit, dimensional drawing, terminal arrangement, accessory scope, protection devices, spare-parts list, test documentation, installation environment, packaging, and warranty terms.
These project-specific items should be recorded in the approved technical schedule before manufacture.
SB-500 | Applications and Buyer Notes
SB-500 is organized as a sourcing-ready Transformers And Substation Equipment reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements an
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
- Transformers and Substation EquipmentBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Model
- SB-500/10.5Based on visible page data; confirm exact value in the RFQ.
- Transformer type
- Three-phase, two-winding, oil-immersed distribution transformerBased on visible page data; confirm exact value in the RFQ.
- Tap range options
- ±2 × 2.5% or ±5%Based on visible page data; confirm exact value in the RFQ.
- Low-voltage rating
- 0.4 kVBased on visible page data; confirm exact value in the RFQ.
- High-voltage options
- 6, 6.3, 6.6, 10, 10.5, or 11 kVBased on visible page data; confirm exact value in the RFQ.
- Rated capacity range
- 30–2,500 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
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