20 kV Up to 5000 kVA Three Phase Oil Immersed Distribution Transformer

Overview

Voltage:	20 kV
Rated Power:	Up to 5000kVA
Primary Voltage:	20 kV, 22 kV, 24 kV
Secondary Voltage:	220 V, 230 V, 240 V, 380 V, 400 V, 415 V, 480 V, 600 V, 690 V, 3.3 kV, 6 kV, 10 kV
Core material:	Copper/Aluminum
Cooling Methods:	ONAN/ONAF/KNAN/KNAF
Transformer Oils:	Mineral oil/FR3/Silicone oil
Operational Environment:	Heat/Cold/Earthquake/Corrosive
OEM & ODM:	Color & Logo

Description

Our 20kV oil immersed distribution transformer is designed for high efficiency, reliability, and long service life in medium-voltage power networks. Its sealed corrugated oil tank prevents moisture absorption and oil oxidation, preserving insulation strength and ensuring stable performance over decades of operation. With compact dimensions, efficient cooling, and multiple oil options (mineral, FR3, silicone), this transformer is ideal for substations, renewable energy projects, industrial plants, and urban power distribution.

Applications

• Commercial & Residential Power Distribution - stable and safe electricity for buildings, schools, and hospitals.

• Industrial Plants & Factories - durable design for heavy-duty operations.

• Transportation Hubs & Airports - compact footprint for critical infrastructure.

• Renewable Energy Projects - optimized for wind, solar, and distributed energy systems.

• Data Centers & Medical Complexes - ensures high reliability for sensitive equipment.

Advantages

• Long Service Life: Fully sealed oil tank prevents contact with air, reducing oil oxidation and insulation aging.

• High Reliability: Advanced sealing technology and robust construction ensure stable and safe operation.

• Moisture Resistance: Sealed design prevents moisture absorption, maintaining insulation strength and performance.

• Efficient Cooling: Corrugated tank design functions as a built-in radiator, eliminating the need for a separate oil storage tank.

• Compact and Space-Saving: Small footprint and aesthetic design make installation flexible and convenient.

• Low Maintenance: Sealed design and durable materials reduce maintenance requirements.

• Structural Integrity: Tank and edges can be bolted or welded, ensuring long-term durability.

• Versatile Applications: Suitable for urban, industrial, commercial, and renewable energy power distribution systems.

Production Process

General Arrangement Drawing

Production Process of Oil Type Transformers

Finished Transformer

Certificates

FAQ

Q: Who are we?
A: As a joint venture with Eaton in 2023, Ryan Electric is a leading and professional manufacturer of cast resin transformer, oil immersed transformer, pad mounted transformers and every kinds of substations since 2007.

Q: Why should you buy from us not from other suppliers?
A: Our company holds international certifications including UL/CSA/IEEE/IEC/EUR and DEKRA. Also obtained CNAS certification for testing center. We are key partners to world-renowned enterprises such as Microsoft, Amazon, TBEA, and State Grid, providing reliable, secure, and stable power equipment and services.

Q: OEM and ODM available?
A: Yes, we supply customized solution to clients.

Q: What are preferred Terms of Payment and delivery? 
A: T/T, L/C, EXW, FCA, FOB, CFR, CIF, DDP

Q: How long is the warranty of your product?
A: We offer a standard warranty of 12 to 24 months from the date of commissioning or shipment, depending on the product line. 

Q: How long is your production time?
A: Lead times vary based on product complexity, customization, and order volume. Standard product lead times range from 4 to 12 weeks. With a monthly production capability of 2,000 units, our annual output reaches up to 20,000 MVA.

Q: After-sales service
A: Our support services include:
-Installation guidance & technical support available on-site or online.
-30-minute response time to any customer inquiry.
-2-hour commitment to provide a preliminary solution.
-48-hour on-site dispatch if required.

Q: Want to join our network as a branded partner?
A: Yes, we welcome potential partners! We are committed to supporting our agents with comprehensive business, technical, and after-sales support. To ensure your success, we implement a market protection strategy and work closely with you to develop the global market, fostering a truly win-win partnership.

Q: What are the primary applications of our transformers?
A: Our transformers deliver specialized solutions for a range of key sectors: Electric Power, Data Center, New Energy, Petrochemical Industry and Construction, among others.