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Home > Hermetically Sealed Oil Immersed Transformer > IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
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IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV
IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV

IEC Hermetically Sealed Three Phase Oil Immersed Step Down Transformer 6KV to 33KV System 50Hz/60Hz 220V/480V 220kV/110kV/132kV

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Product Description

Products Description
Product Image
Item Value
Input Voltage 3.3kv-36kv / 69kv / 110kv / CUSTOM
Output Voltage 200v-440v / custom
Color Grey / Green / Custom
Frequency 50/60Hz
Impedance 4% – 10%
Vector Group Dyn11 / YNd11 / Custom
Certification IEC / IEEE / CE / ISO 9001
Cooling Method ONAN / ONAF / OFAF / ANSI
Tap Changer Off-load Tap Changer, On-load Tap Changer
Protection / Environment Outdoor Type
📋
Professional independent technical team Drawings: within 3 days.
Company Profile
💡
Please take 30 seconds to know about us. Welcome to visit!

• 15 years experience in winding wire and power transformer manufacturing. Integrated factory (50,000 ㎡) with R&D team and 15,000 units annual capacity ISO 9001, UL, CE certified.

• 5S management and 100% outgoing inspection. Full product range: winding wire + dry-type & oil-immersed transformers. Global projects served with 24/7 technical and after-sales support.

Real factory working scenes, providing a transparent view of our transformer manufacturing process.
PROJECT CASE
We participated in the transformer substation project. These substation projects represent more than finished installations — they are proof of our reliability, technical expertise, and customer-focused solutions.

✅ South America 765kV substation project

✅ Tanzania 220/33 kV Substation Project

✅ Cote d 'Ivoire 90kV 225kv substation project

✅ Mozambique 110kv Substation Project

✅ Tanzania 33kV Substation Project

✅ Egyptian 230kv Substation Project

Our Business Partner
Our products and solutions have been applied in projects serving leading enterprises and major infrastructure groups worldwide.
Packing & Delivery
Flexible shipping terms and professional logistics support available
Cooperation
Frequently Asked Questions
Q1: Why choose your company?
A1: We have over 15 years of transformer design experience, a strong R&D and engineering team familiar with IEC, IEEE/ANSI, CSA standards, offering stable quality, competitive cost performance, and fast technical response.
Q2: What products do you supply?
A2: We manufacture oil-immersed and dry-type transformers from 400V up to 220kV, including distribution transformers, power transformers, pad-mounted transformers, and related power equipment.
Q3: Can you provide customized solutions (OEM/ODM)?
A3: Yes. We support OEM and ODM services, including customized voltage, capacity, structure, standards, and special application requirements.
Q4: How do you guarantee product quality?
A4: All products undergo pre-production samples, 100% routine testing, final inspection, and complete QC & test reports. FAT (Factory Acceptance Test) is available, with over 2 years warranty.
Q5: What are your MOQ and delivery time?
A5: * MOQ: Very low for standard models; customized orders depend on specifications. * Delivery time: Typically 15–30 days after order confirmation.
Q6: What are your payment terms?
A6: We accept T/T, L/C, credit card, PayPal, and other flexible payment options to suit our partners' needs.

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