50 kVA Three-Phase Three-Winding Dry-Type Marine Isolation Transformer for Shipboard & Offshore Power Distribution Systems

Overview of 50Kva Marine Isolation Transformer

The PowerNex 50 kVA three-phase three-winding dry-type marine isolation transformer is a highly reliable and efficient solution designed for shipboard and offshore electrical systems. This 50 kVA marine isolation transformer provides safe, stable, and high-quality power, making it ideal for commercial vessels, naval ships, yachts, offshore platforms, and other marine industrial applications. It ensures consistent voltage, reduces electrical noise, and protects onboard systems from overloads, short circuits, and electrical faults.

With its dry-type, three-winding design, this 50 kVA marine isolation transformer eliminates the need for oil insulation, significantly reducing maintenance requirements while enhancing onboard safety. Its flexible three-winding construction allows multiple output voltages, supporting a wide range of shipboard and offshore power configurations. This transformer is engineered to withstand the harshest maritime conditions, including high humidity, salt spray, and vibration.

As a leading manufacturer, supplier, and wholesaler in China, PowerNex provides global sales and supports custom capacities ranging from 10 kVA to 500 kVA, allowing full adaptability for specialized vessel and offshore power systems. Our marine transformers are exported worldwide to major markets including the USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, South Africa, Mexico, New Zealand, and many more, ensuring reliable supply chains for industrial and maritime clients.

Technical Specifications of Marine Isolation Transformer

Note: The 50 kVA model is widely used for medium-scale vessels and offshore installations, offering a perfect balance between power output, efficiency, and size. Custom capacities ensure that every client can receive a transformer tailored to their exact shipboard or offshore power requirements.

Key Features of  50Kva Three-Phase Dry-Type Marine Isolation Transformer

• Three-Phase Dry-Type Design – Provides stable voltage, minimizes electrical noise, and ensures safe operation in marine and offshore environments.

• Three-Winding Construction – Allows multiple output voltages for versatile shipboard and offshore applications.

• High Efficiency & Low Loss – Advanced core and winding design reduces energy consumption and operational costs, ideal for long-term maritime use.

• Marine-Grade Construction – Designed with corrosion-resistant materials, fire-resistant insulation, and vibration-resistant structures to withstand harsh marine conditions.

• Customizable Capacities – Standard range from 10 kVA to 500 kVA, with 50 kVA as a popular option for mid-size vessels.

• Global Compliance – Meets international maritime and industrial standards, ensuring compliance with IEC, IEEE, and marine class society requirements.

• B2B-Focused Design – Tailored for shipbuilders, offshore contractors, marine electrical engineers, and industrial procurement teams seeking reliable and long-lasting transformers.

Applications of Three-Phase Marine Isolation Transformer

The PowerNex 50 kVA three-phase three-winding dry-type marine isolation transformer is suitable for a wide range of marine and offshore applications:

1. Shipboard Power Systems – Provides reliable power distribution for commercial vessels, cargo ships, passenger ships, and yachts, ensuring smooth operation of onboard equipment.

2. Naval & Defense Vessels – Offers secure voltage isolation and protection for military applications, supporting critical onboard systems.

3. Offshore Electrical Systems – Ideal for oil rigs, wind farms, and offshore installations, delivering safe and stable power under demanding conditions.

4. Marine Industrial Equipment – Supports shipyard machinery, marine cranes, navigation systems, and onboard automation equipment.

5. Custom Marine Power Solutions – Tailored capacities and voltages from 10 kVA up to 500 kVA ensure compatibility with unique shipboard and offshore project requirements.

This 50 kVA transformer is particularly favored for vessels and offshore applications requiring moderate power with maximum reliability, and its three-winding configuration allows integration with multiple shipboard subsystems.

Why Choose PowerNex Marine Isolation Transformers

• Global Leader – PowerNex is a highly trusted manufacturer, supplier, and wholesaler of marine transformers in China.

• Worldwide Shipping – Products are delivered globally, including USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, South Africa, Mexico, New Zealand, and more.

• Custom Engineering – Flexible capacities, voltages, mounting options, and additional features are available to meet project-specific needs.

• Reliability & Safety – Marine-grade construction ensures consistent performance in extreme maritime conditions.

• Certified Quality – ISO 9001 and IEC compliant, meeting international maritime safety standards.

• B2B-Oriented – Designed for industrial procurement teams, shipbuilders, and offshore contractors seeking dependable marine power solutions.

Marine-Grade Construction & Safety Features

The dry-type design ensures safe operation without oil, significantly reducing fire hazards and environmental risks. Corrosion-resistant coatings and marine-grade insulation protect against saltwater exposure, high humidity, and harsh weather conditions. Vibration-resistant mounting maintains transformer stability even in high-motion environments.

The three-winding configuration supports multiple voltage outputs, allowing seamless integration into complex shipboard and offshore power systems. The 50 kVA size is optimized for medium vessels and offshore platforms, balancing compactness with high efficiency.

Custom Options for Shipboard and Offshore Transformers

• Capacities: 10 kVA – 500 kVA (50 kVA as a standard model)

• Primary & Secondary Voltages: Fully customizable for project requirements

• Mounting Options: Floor-mounted, marine brackets, vibration-damped mounts

• Protection Class: IP23 standard; optional IP44/IP54

• Additional Features: Voltage tap changers, low-noise design, advanced thermal protection, corrosion-resistant coatings

This flexibility ensures each marine transformer meets the precise operational requirements of vessels, naval ships, offshore installations, and specialized marine equipment.

Global Sales & After-Sales Service

PowerNex provides worldwide delivery and comprehensive after-sales support, including professional installation guidance, technical assistance, and maintenance recommendations. Our marine transformers are trusted by B2B clients globally, covering USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, South Africa, Mexico, New Zealand, and additional international markets.

Conclusion

The PowerNex 50 kVA three-phase three-winding dry-type marine isolation transformer is a premium solution for shipboard and offshore power systems. With custom capacities ranging from 10 kVA, 25 kVA, 50 kVA, 75 kVA, 100 kVA, 150 kVA, 200 kVA up to 500 kVA, marine-grade construction, and global availability, it is the ideal choice for shipbuilders, naval contractors, offshore operators, and industrial procurement teams seeking safe, reliable, and efficient marine power solutions.

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