450KVA 3 Phase Oil Immersed Power Transformer | S11 Series IEC Standard Industrial Distribution Transformer
Contact Us
Tel: +86 15926315252 | Mobile/WeChat: +86 15926315252
Email: daniel@shlepus.com | WhatsApp: +86 18979230829
Product Introduction
Our 450KVA 3 Phase Oil Immersed Power Transformer (S11 series) is an IEC 60076 compliant, high-performance outdoor power distribution solution engineered for global industrial, commercial and utility applications. Designed for 50/60Hz power systems, this transformer features standard primary voltage ratings from 6kV to 13.2kV (customizable up to 33kV) and secondary voltage of 0.4kV (380V/400V/415V/440V customizable), with on-load or no-load tap operation available. As a rugged oil-immersed distribution transformer, it is the ideal power solution for medium-to-low voltage power conversion and transmission, widely trusted by electrical engineers, factory operators, utility providers and medical facility managers worldwide. It is perfectly suited for hospitals, factory power distribution, CNC machine tools, photovoltaic systems, power transmission equipment, precision instrumentation, generators, industrial motors and EV charging stations.
Key Features & Competitive Advantages
Engineered to meet global IEC standards, our 3 phase oil immersed power transformer delivers exceptional long-term reliability and energy efficiency for continuous outdoor operation. Core benefits include low no-load losses, ultra-low temperature rise, and stable performance under heavy load conditions, enabled by high-quality windings with superior electrical conductivity, heat-resistant insulation and corrosion resistance. It adopts ONAN (Oil Natural Air Natural) cooling with PCB-free mineral oil for optimal heat dissipation and environmental safety, with a Dyn11 vector group and ±2×2.5% tap range for flexible voltage regulation. Additional highlights include high-performance terminals with superior insulation properties, no additional waveform distortion, a fully sealed rugged structure for outdoor installation, and strong adaptability to harsh ambient temperatures from -30℃ to 40℃, ensuring maintenance-free long service life for global industrial applications.
Why Choose SHLEIPUSI
As a professional oil immersed power transformer manufacturer serving the global market, we deliver IEC-compliant, tailored end-to-end power solutions with strict quality control. We offer comprehensive OEM/ODM services, including custom voltage ratings, capacity, appearance, logo branding and packaging, with free professional product photography and video services for bulk orders. Every 450KVA 3 phase oil immersed power transformer undergoes strict multi-stage testing from raw material intake to final factory inspection, ensuring zero defects and consistent performance. We support worldwide shipping via sea, air, land, express and railway, with all mainstream Incoterms available. Our after-sales service includes a 2-year warranty, lifetime free technical guidance, video/on-site installation support, and free replacement of components damaged by manufacturing defects. With a monthly capacity of up to 2,000 large-power transformer units, we accommodate flexible orders with a minimum order quantity of just 1 set.
Technical Specifications
| Parameter |
Core Specification |
Fully Customizable |
| Product Name |
450KVA 3 Phase Oil Immersed Power Transformer |
Yes |
| Model |
S11-450KVA |
Yes |
| Standard |
IEC 60076 |
Yes |
| Rated Capacity |
450KVA |
Yes |
| Rated Input Voltage |
3 Phase 6kV/10kV/11kV/13.2kV |
Yes (up to 33kV) |
| Rated Output Voltage |
3 Phase 400V/380V/415V |
Yes |
| Working Frequency |
50/60Hz |
Yes |
| Tap Range |
±2×2.5% |
Yes |
| Cooling Method |
ONAN |
Yes |
| Vector Group |
Dyn11 |
Yes |
| Installation |
Outdoor |
Yes |
| Warranty |
2 Years |
Yes |


Frequently Asked Questions (FAQ)
- Does your 450KVA 3 phase oil immersed power transformer meet international standards?
Yes, our transformers are fully designed and manufactured in compliance with IEC 60076 international standards for global market access.
- What is the lead time for 450KVA oil immersed power transformers?
Standard models ship within 3-7 working days; custom orders take 10-30 days based on quantity and specifications.
- How do you control the product quality of your oil immersed transformers?
We conduct comprehensive quality inspection at every production stage from raw material incoming to final testing, and only qualified products are shipped.
- What are your accepted payment terms?
30% deposit for standard products, 50% advance payment for custom orders, with full balance settled before shipment.
- Do you provide technical support for product installation and commissioning?
Yes, our professional technical team offers full installation guidance, including remote video and on-site support worldwide.
- What packaging do you use for the oil immersed power transformers?
Large units use reinforced seaworthy wooden cases, with custom packaging options available to meet international shipping requirements.
- Do you accept OEM/ODM orders with our brand logo?
Yes, we provide full OEM/ODM services, including custom logo printing on products, manuals and technical specifications for bulk orders.
- What are your main global markets?
Our oil immersed power transformers are sold worldwide, covering Central Asia, East Asia, South Asia, Africa, South America and North America.
- What is your minimum order quantity (MOQ)?
Our MOQ is 1 set for both standard and custom 450KVA 3 phase oil immersed power transformers.
- Can you customize voltage and configuration for my specific project?
Yes, we fully customize voltage ratings, tap range, cooling method and design to match your factory, photovoltaic, utility or EV charging project needs.