SZ9 35 kV 50 Hz Three-Phase Oil-Immersed Two-Wind | 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 SZ9 is a three-phase, two-winding, oil-immersed transformer listed for 50 Hz systems with a rated voltage of 35 kV. Its stated use environments include power distribution systems, substations, and industrial facilities.
Listed usage classifications include power, distribution, combined, and rectifier transformer duties. The core-type construction uses cold-rolled, grain-oriented silicon-steel sheet. The core has fully inclined joints, while its columns use a circular, multi-step cross-section.
The concentric windings incorporate corrugated oil ducts and tightening-belt binding. A high-voltage winding tap is provided for tap-voltage adjustment. The transformer uses a corrugated-wall oil tank with heat sinks that provide cooling and accommodate changes in oil volume as temperature rises or falls.
The described fully sealed configuration has no oil conservator. Pressure-relief valves are stated as standard across the listed capacity range. A gas relay with alarm and trip terminals is available according to user requirements.
Glass-thermometer sockets are positioned at the top of the oil tank and extend 120 ± 10 mm into the oil. Published operating conditions specify installation at no more than 1,000 m above sea level and an ambient-temperature range of -40°C to 40°C.
Listed rated capacities extend from 800 to 31,500 kVA, with model-specific installation dimensions. Important procurement clarification: although the product title describes on-load tap changing, the detailed construction text says the tap voltage can be changed only after the power supply is cut off.
Buyers should therefore obtain written confirmation of the supplied tap-changer type, adjustment range, number of positions, operating method, and control equipment before ordering.
The exact voltage ratio, vector group, impedance, insulation level, losses, temperature rise, oil specification, accessories, applicable product standard, routine and type tests, and final outline drawing should also be confirmed for the selected capacity.
SZ9 | Applications and Buyer Notes
SZ9 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 and l
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
- SZ9Based on visible page data; confirm exact value in the RFQ.
- Phase
- Three-phaseBased on visible page data; confirm exact value in the RFQ.
- Core material
- Cold-rolled grain-oriented silicon-steel sheetBased on visible page data; confirm exact value in the RFQ.
- Rated voltage
- 35 kVBased on visible page data; confirm exact value in the RFQ.
- Rated frequency
- 50 HzBased on visible page data; confirm exact value in the RFQ.
- Ambient temperature
- 40°C to 40°CBased 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
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