45 kVA 600 Volt to 208Y/120 Volt Three phase Oil Filled Transformer

Looking for a reliable 45 kVA step-down transformer to convert 600V to 208Y/120V for your equipment?

 

You've found a trusted partner. GNEE, established in 2008, is a leading Chinese manufacturer of specialized oil filled transformers, with deep expertise in producing robust, efficient units for North American and international voltage standards.

 

This guide provides a complete overview of our 45 kVA, 600V to 208Y/120V three-phase oil filled transformer, detailing its applications, key features, and how it can solve your specific power conversion challenges.

 

Primary Applications and Use Cases

 

This specific 45 kVA oil filled transformer is designed to interface between common North American industrial power systems (600V three-phase) and equipment requiring 208Y/120V three-phase power. It is a critical component in various settings.

 

• Common Installation Scenarios:
• Industrial Machinery: Powering CNC machines, assembly line equipment, or packaging systems sourced from markets using 208V that are installed in Canadian facilities with 600V supply.
• Commercial Renovations/Additions: Supplying power to new server rooms, laboratory equipment, or retail tenant spaces in older buildings with existing 600V infrastructure.
• Data Centers & Telecom: Providing standardized 208V power to server racks and networking equipment from a 600V utility feed.
• Manufacturing Plants: Creating dedicated 208V circuits for lighting panels, HVAC units, or tools within a larger 600V plant.

 

Its compact size and reliable oil-filled design make it ideal for both indoor electrical rooms and outdoor pad-mounted installations.

Explore our full range of industrial step-down transformers for various voltage requirements.

 

Detailed Technical Specifications

 

Our 45 kVA oil immersed transformer is engineered for safety, efficiency, and longevity. Below are the key technical parameters for this model.

Parameter	Specification
Rated Capacity	45 kVA
Primary Voltage (High Side)	600 Volts, 3-Phase, 3-Wire
Secondary Voltage (Low Side)	208Y/120 Volts, 3-Phase, 4-Wire (Provides both 208V for equipment and 120V for outlets)
Frequency	60 Hz (Standard for North America. 50 Hz available upon request)
Vector Group / Connection	Delta (Δ) - Wye (Y) (Commonly denoted as Dyn1 or similar)
Impedance (Z%)	Typically 4% (Designed to limit fault current and ensure safe operation)
Insulation Class	Class A or higher, oil-immersed for superior dielectric strength and cooling
Cooling Method	ONAN (Oil Natural, Air Natural)
Temperature Rise	65°C / 55°C (Above ambient, per winding/oil)
Efficiency	High efficiency design, meeting or exceeding NEMA TP-1 standards
Sound Level	≤ 55 dB(A) (Quiet operation suitable for most environments)
Enclosure	NEMA 3R (Weatherproof for outdoor use) or NEMA 1 (Indoor)
Approximate Dimensions (LxWxH)	700mm x 500mm x 800mm (Subject to final design)
Approximate Weight	450 - 550 kg

Note: All specifications are typical. Contact us for the exact datasheet and drawings.

 

GNEE's 45 kVA, 600V to 208Y/120V oil filled transformer

 

Key Advantages of the Oil Filled Design

 

Choosing an oil filled transformer for this application offers significant benefits over dry-type units, especially in certain environments.

 

1. Superior Thermal Performance and Overload Capacity
The transformer oil provides excellent heat dissipation, allowing the unit to handle momentary overloads (like motor starts) more effectively than an equivalent dry-type. This leads to a longer operational lifespan under cyclical industrial loads.

 

2. Enhanced Protection and Durability
The sealed tank and oil immersion protect the core and windings from moisture, dust, and corrosive atmospheric contaminants. This makes our 45 kVA oil cooled transformer exceptionally reliable for both indoor and outdoor installations.

 

3. Compact and Cost-Effective
For the same power rating, an oil-filled design is often more compact and has a lower initial cost compared to a dry-type transformer with similar specifications, offering great value.

 

4. Lower Operational Noise
The oil acts as a damping medium, resulting in quieter operation-a key advantage in commercial buildings or noise-sensitive areas near workspaces.

 

Installation, Wiring, and Safety Considerations

Proper installation is crucial for safety and performance. Here are the critical steps and considerations.

 

Installation Checklist:

• Location: Ensure a level, stable, and non-flammable base. Maintain required clearances for ventilation and safety per NEC/CEC codes.
• Grounding: The transformer case and the neutral (X0) terminal on the secondary side must be properly bonded and grounded to ensure safety and correct operation.
• Primary Protection: Install appropriately sized fuses or a circuit breaker on the 600V primary side.
• Secondary Protection: Protect the 208Y/120V output with a properly rated distribution panel and circuit breakers.
• Oil Containment: For indoor installations, consider a spill containment curb in accordance with local environmental regulations.

 

Wiring Configuration:

• Primary (600V): Connect the three-phase lines to bushings H1, H2, H3.
• Secondary (208Y/120V): Connect the four output wires (X1, X2, X3, X0) to your load panel. X0 is the neutral, critical for obtaining 120V.
•  

Connection diagram for primary (600V) input and secondary (208Y/120V) output

 

Why Choose GNEE for Your Specialized Transformer?

GNEE understands that standard solutions don't always fit. We specialize in providing tailored power conversion equipment.

 

Our Commitment to Quality:

• Custom Design Flexibility: Need a slightly different secondary voltage? Require special bushings or taps? We can customize the design.
• Rigorous Testing: Every unit undergoes comprehensive factory tests, including turns ratio, polarity, impedance, and dielectric tests, to ensure it meets specifications.
• Standards Compliance: Built to applicable ANSI/IEEE, CSA, or IEC standards. Documentation packages include test reports and connection diagrams.
• Direct Manufacturer Support: As a factory, we provide expert technical support from specification to installation.

 

This 45 kVA distribution transformer is a prime example of our ability to deliver reliable, application-specific power solutions.

 

Request a quotation with your specific requirements for a tailored offer.

 

Conclusion: The Reliable Solution for 600V to 208V Conversion

A 45 kVA, 600V to 208Y/120V three-phase oil filled transformer is an essential and reliable link for integrating equipment into diverse electrical infrastructures. Its robust oil-filled construction ensures durability, efficient operation, and long-term performance in demanding environments.

 

As an experienced transformer manufacturer since 2008, GNEE provides not just a product, but a complete power solution backed by engineering expertise. We ensure our transformers are built to last and perform precisely as required for your application.

Request A Quote

 

 

Ready to power your equipment correctly and safely?

Contact GNEE today for a detailed datasheet, a competitive quote on our 45 kVA step-down transformers, and expert technical consultation.

Let us provide the reliable power conversion your project needs.