Contact Platform Support
Help CenterCustom KVA & Voltage Amorphous Alloy Oil Immersed Transformer Factory Wholesale Direct Price for Solar Wind Hybrid Energy System
Product Spotlights
- Hermetically sealed, maintenance‑free outdoor operation
- Strong anti‑short‑circuit & anti‑corrosion performance
- Custom capacity & voltage for solar, rural & urban grid
- IEC ISO certified, factory direct competitive price
Related Products
-
Compact Low‑Maintenance Amorphous Alloy Oil Immersed Transformer, Anti‑Aging for Commercial & Large‑Capacity ApplicationNegotiableMOQ: 1 Piece -
Flame Retardant Amorphous Alloy Distribution Transformer Cost‑Effective for Southeast Asia Power MarketNegotiableMOQ: 1 Piece
-
China Transformer Factory Outdoor Installation Hermetically Sealed 3 Phase Oil Filled TransformerNegotiableMOQ: 1 Piece
-
Custom Voltage Oil Immersed Transformer Pad Mounted Distribution Transformer With Low LossNegotiableMOQ: 1 Piece
-
Cost‑effective Factory Oil Immersed Distribution Transformer Pad Mounted Type With Complete AccessoriesNegotiableMOQ: 1 Piece
Custom kVA & Voltage Amorphous Alloy Oil Immersed Transformer Factory Wholesale Direct Price for Solar Wind Hybrid Energy System
This customizable amorphous‑alloy distribution transformer supports flexible kVA and voltage adjustment, also available in pad‑mounted version for diverse site requirements.
Supplied directly from factory with competitive wholesale terms, it is widely adopted for solar farm and commercial building power projects. It guarantees reliable power conversion for large‑scale solar farm projects while keeping noise and overall consumption at a low level.
1. Product Overview
Our Three‑Phase Oil‑Immersed Hermetically Sealed Amorphous Alloy Distribution Transformer is specifically engineered for modern power distribution networks, industrial plants, commercial complexes, solar & wind renewable energy projects. Designed to handle primary voltages from 10kV up to 35kV and secondary voltage of 0.4kV (custom voltage configurations available), with rated capacities ranging from 30kVA to 4000kVA.
Featuring amorphous alloy core material together with fully sealed corrugated oil tank design, the insulating oil is completely isolated from atmospheric air and moisture. This design drastically cuts no‑load loss, prevents oil degradation, extends operational lifespan, eliminates routine oil maintenance, and ensures exceptional performance under severe environmental conditions.
2. Main Characteristics
Hermetically Sealed & Maintenance‑Free: The active part applies a core free‑hanging structure with high‑quality acrylate rubber gaskets to effectively inhibit aging caused by heat and sunlight. The oil tank uses corrugated sheets as thermal expansion elements, completely isolating the insulating oil from the atmosphere to prevent moisture and oxygen ingress.
Ultra‑Low No‑Load Loss & High Energy Efficiency: The magnetic core is manufactured from high‑performance amorphous alloy material. Compared with conventional CRGO silicon steel transformers, it achieves dramatic reduction in no‑load loss and no‑load current, delivering outstanding energy‑saving performance especially for rural grids and new‑energy scenarios. Operating noise is also kept at a low level.
High Short‑Circuit Resistance: High‑voltage windings are wound with high‑strength enamelled or paper‑insulated wire, while low‑voltage windings utilize high‑strength wire or copper foil. The uniform distribution of ampere‑turns and optimized insulation geometry provide superior capability to withstand electromagnetic short‑circuit forces.
Superior Anti‑Corrosion Tank Surface: The corrugated tank undergoes automated multi‑stage surface pretreatment—including degreasing, pickling, phosphating, and electrophoresis—followed by outdoor powder spray coating and high‑temperature curing. This ensures robust protection against salt spray, high humidity, and severe industrial corrosion, ideal for Southeast Asia, Africa and coastal project sites.
3. Technical Features & Performance Highlights
Standards Compliance: Fully designed, manufactured, and tested in strict accordance with IEC 60076, GB/T 1094, GB/T 6451, and IEEE / ANSI C57 standards.
Cooling System: ONAN (Oil Natural Air Natural) self-cooling system designed for continuous 100% full-load output under normal operating conditions.
Temperature Rise Limits: Winding temperature rise ≤ 65K, Top oil temperature rise ≤ 60K (under standard ambient conditions).
Voltage Tapping Range: Off-Circuit Tap Changer (OCTC) with ±2×2.5% or ±5% regulation range. On-Load Tap Changer (OLTC) is available upon request.
Insulation Levels: Fully insulated according to system voltage rating (e.g., LI75 AC35 for 10kV systems; LI200 AC85 for 35kV systems).
Vector Groups & Frequency: Standard Dyn11 or Yyn0 vector groups; 50 Hz or 60 Hz operating frequency.
4. Key Technical Specifications Table
| Parameter / Technical Item | Standard Specification & Custom Range |
| Rated Capacity Range | 30 kVA – 4000 kVA (Customizable) |
| Primary Voltage (HV) | 6kV, 10kV, 11kV, 15kV, 20kV, 33kV, 35kV (±2×2.5% or ±5%) |
| Secondary Voltage (LV) | 0.4kV, 0.415kV, 0.433kV, or custom request |
| Frequency | 50 Hz / 60 Hz |
| Phase & Vector Group | Three‑Phase, Dyn11 / Yyn0 / Custom |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Core Material | High‑performance Amorphous Alloy Core Material |
| No‑load Loss Feature | Ultra‑low no‑load loss, 60%‑80% lower than conventional CRGO silicon steel transformer |
| Winding Material | High‑grade Electrolytic Copper / Aluminum Wire or Foil |
| Tank Type | Hermetically Sealed Corrugated Oil Tank |
5. Quality Control & Factory Routine Testing
Every single transformer undergoes rigorous routine testing before leaving our factory to ensure 100% operational reliability:
Winding Resistance Measurement
Voltage Ratio Inspection & Vector Group Verification
Impedance Voltage & Load Loss Measurement
No-Load Loss & No-Load Current Measurement
Separate-Source AC Voltage Withstand Test
Induced Overvoltage Withstand Test (DVDF)
Transformer Oil Dielectric Strength & Breakdown Voltage Test
6. Applications
Power Grids & Substations – Step up from generation voltage to transmission level, or step down to distribution voltage at substations. Especially suitable for distribution nodes with long‑term no‑load standby status for remarkable energy‑saving benefits.
Renewable Energy – Step up transformer for solar farms and wind power plants, converting inverter output (0.48kV/0.69kV) to medium voltage (10kV‑35kV) or higher.
Industrial Power Supply – Main and distribution transformers for steel mills, cement plants, mining, petrochemical, oil & gas facilities.
Commercial & Residential Distribution – Pole mounted or pad mounted units for rural electrification and urban underground networks. Ideal for rural grids where transformers stay energized around‑the‑clock.
7. Frequently Asked Questions (FAQ)
Q1: Can you customize special voltage ratios or dual-voltage ratings (e.g., 13.8kV, 33kV, or 35kV)?
A: Yes, we provide full engineering customization for primary voltages from 6kV up to 35kV and various low-voltage outputs. Tap changers (OCTC or OLTC) can be tailored to your local grid requirements.
Q2: Are third-party factory inspections supported before delivery?
A: Absolutely. We fully support third-party factory audits and product inspections by international agencies such as Bureau Veritas (BV), SGS, Intertek, or client-appointed engineers.
Q3: How is the transformer packaged for long-distance ocean freight?
A: Transformers are secured on heavy-duty wooden skids or fumigation-free wooden cases, wrapped in moisture-proof stretch film with desiccant, and rigidly anchored inside containers to prevent damage during transit.
8. Get a Custom Quote & Technical Drawing
Need a custom transformer design, technical datasheet, or CAD dimension layout for your project?
Contact our engineering sales team today to get a detailed technical proposal and a competitive quotation within 12 hours!
Please provide:
Rated power (kVA / MVA)
Primary and secondary voltages
Frequency (50Hz / 60Hz)
Vector group (Dyn11, Yyn0, etc.)
Tap changer type and range
Cooling method
Accessories required
-
Installation environment (altitude, ambient temperature, humidity, corrosion level)
Send Inquiry to This Supplier
You May Also Like
-
Bulk Supply Pad Mounted Transformer Low MOQ Oil Immersed Distribution Power TransformerNegotiableMOQ: 1 Piece
-
Compact Oil Immersed Distribution Transformer Pad Mounted Type With Competitive Transformer PriceNegotiableMOQ: 1 Piece
-
Oil Immersed Distribution Transformer 3 Phase ISO Certified Custom KVA Transformer For Industrial Power SupplyNegotiableMOQ: 1 Piece
-
Low Noise Oil Immersed Power Distribution Transformer Step Up Transformer For Solar Farm Renewable EnergyNegotiableMOQ: 1 Piece
-
33kV Oil Immersed Distribution Transformer Energy‑Saving Customizable MVA‑Grade Power Transformer for Urban Power NetworkNegotiableMOQ: 1 Piece
-
Step Down Oil Immersed Distribution Transformer For Commercial Building Use With Stable PerformanceNegotiableMOQ: 1 Piece
-
Anti Corrosion Oil Immersed Distribution Transformer Solar Power Transformer Factory Direct Sale For Middle East Power ProjectNegotiableMOQ: 1 Piece
-
Large Capacity Oil Immersed Power Distribution Transformer for Wind PV Solar Energy SystemNegotiableMOQ: 1 Piece
-
China Transformer Factory Outdoor Hermetically Sealed Amorphous Alloy Oil‑Immersed Distribution TransformerNegotiableMOQ: 1 Piece
-
Energy‑Saving Amorphous Alloy Oil Immersed Distribution Transformer, IEC ISO Certified Low No‑Load Loss for Rural & Urban GridNegotiableMOQ: 1 Piece
