SG(B) Series Dry-type Isolation Transformer

Overview

Voltage:	Up to 660 V
Rated Power:	Up to 3000 kVA
Primary Voltage:	415, 480 V
Secondary Voltage:	208, 415 V
Core material:	Copper/Aluminum
Cooling Methods:	AN/AF
Operational Environment:	Heat/Cold/Earthquake/Corrosive
OEM & ODM:	Color & Logo

Description

Our isolation transformers are engineered with precision winding technology, high-grade silicon steel cores, and reinforced insulation to ensure safety, reliability, and durability. Designed for industrial, commercial, and specialized applications, they effectively isolate power sources to protect sensitive equipment from electrical noise, surges, and interference. With capacities ranging from 45–3000 kVA and voltage levels of 380V–660V, these transformers are widely used in manufacturing plants, medical facilities, data centers, and marine power systems.

Advantages

• Nomex®-insulated coils processed through VPI for a sealed, high-strength insulation system for long-lasting durability.

• Efficient heat dissipation with Nomex® insulation for reliable operation at temperature above 200°C.

• Effectively suppresses electrical noise, voltage spikes, and harmonics to improve the stability of connected equipment.

• Optional stepping up, stepping down, or maintaining voltage as needed.

• Nomex® paper burns cleanly without releasing harmful substances, ensuring environmental sustainability.

Production Process

General Arrangement Drawing

Production Process of Dry 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.