The 1000 kVA Three-Phase Marine Shore Power Isolation Transformer 6.6kV to 690V from PowerNex is a high-capacity, dry-type marine transformer engineered for ship-to-shore electrical connections, ports, shipyards, and onboard shipboard power distribution. Designed for reliable, safe, and efficient isolation of electrical networks, this 1000 kVA marine transformer ensures uninterrupted operation of lighting, auxiliary power, communication systems, and critical electronics under demanding marine and offshore conditions.
Featuring oil-free, air-cooled, epoxy-insulated windings, this 1000 kVA transformer offers minimal maintenance, superior safety, and long-term operational stability. Its marine-grade enclosure is designed to withstand humidity, vibration, shock, salt spray, and extreme temperature conditions, making it ideal for commercial vessels, naval ships, cruise liners, ferries, and offshore platforms.
PowerNex provides factory-direct pricing, OEM/ODM customization, and worldwide distribution for B2B clients in USA, Canada, Australia, Brazil, Argentina, Mexico, Guyana, Malaysia, Indonesia, Saudi Arabia, UAE, UK, Germany, France, Spain, Italy, South Africa, and other global markets.
1000 kVA Marine Shore Power Isolation Transformer Technical Specifications
| Parameter | Specification |
|---|---|
| Power Rating | 1000 kVA (range 250–5000 kVA, including 250 kVA, 500 kVA, 750 kVA, 1000 kVA, 1250 kVA, 1600 kVA, 2000 kVA, suitable for shipboard, offshore, and port power systems) |
| Type | Dry-Type Marine Shore Power Isolation Transformer (oil-free, air-cooled, epoxy-insulated) |
| Primary Voltage | 6.6 kV AC (options: 3.3 kV, 6.6 kV, 10 kV, 11 kV; customizable for global marine applications) |
| Secondary Voltage | 690 V / 480 V / 440 V / 415 V / 400 V / 380 V / 230 V / 220 V / 127 V AC (Wye or Delta; fully customizable for shipboard, port, or offshore systems) |
| Connection | Three-Phase (Delta–Wye, Wye–Wye, Delta–Delta; optional single-phase output for specialized systems) |
| Frequency | 50 Hz / 60 Hz |
| Cooling | Air Natural (AN), dry-type, oil-free, low-maintenance, safe for confined spaces |
| Standards | IEC 60076, ANSI, IEEE C57.12, CE, UL, cUL, CSA |
| Class Society Certifications | ABS, DNV, LR, BV, CCS, NK, RINA, KR (optional) |
| Enclosure | Marine-grade epoxy or powder-coated steel; NEMA 1 indoor / NEMA 3R outdoor optional, corrosion-resistant |
| Insulation Class | B, F, or H-class for high thermal endurance |
| Temperature Rise | Class F insulation, ambient ≤ 45°C |
| Noise Level | ≤ 60 dB at full load |
| Weight & Dimensions | Customizable based on voltage, capacity, and enclosure type |
| Applications | Ship-to-shore power distribution, ports, shipyards, commercial vessels, naval ships, ferries, cruise liners, offshore platforms, renewable energy integration |
Applications
The 1000 kVA marine shore power isolation transformer is widely used for:
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Ship-to-shore power connections: Provides safe and isolated power for ships docked at ports, terminals, and shipyards.
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Commercial vessels and ferries: Supplies power for lighting, navigation, and auxiliary systems.
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Naval ships: Powers sensitive electronics, communications, and critical lighting networks, fully compliant with marine safety standards.
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Cruise liners and yachts: Stable electricity for onboard lighting, HVAC, and entertainment systems.
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Offshore platforms: Supplies reliable power for living quarters, control rooms, and auxiliary machinery.
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Ports and shipyards: Temporary or permanent shore power for maintenance, retrofitting, and operational lighting.
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Renewable energy integration: Compatible with onboard solar, wind, or hybrid marine power systems.
Materials & Build Quality
The 1000 kVA transformer is engineered for long-term durability and marine performance:
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Core: High-quality cold-rolled silicon steel laminations (CD-type or stacked) with low no-load current and minimal losses.
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Windings: Copper or aluminum conductors with epoxy resin, B, F, or H insulation class.
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Encapsulation: Epoxy resin-molded windings with excellent heat dissipation, waterproof and moisture-resistant.
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Enclosure: Marine-grade epoxy or powder-coated steel, corrosion-resistant, with IP-rated waterproofing.
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Cables & Terminals: Connection through top-mounted terminal box; CSD, CDD, CSDⅡ, CSDⅢ series for drip-proof designs.
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Hardware: Stainless steel fasteners and anti-corrosion components suitable for marine and offshore use.
Operating Conditions
This transformer is designed for use in shipboard, offshore, and port environments under the following conditions:
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Altitude: ≤ 1000 m
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Ambient Temperature: ≤ 45°C
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Relative Humidity: ≤ 95%, including condensation, oil mist, and mildew exposure
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Mechanical Vibration & Shock: Withstands normal ship operations, including rolling ≤ 22.5° and pitching ≤ 15°
Testing & Quality Assurance
PowerNex 1000 kVA marine transformers undergo rigorous tests:
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Factory Acceptance Test (FAT): Electrical, mechanical, and safety inspection before shipment
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High Voltage Insulation Test: Verifies winding insulation integrity
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Load & Temperature Rise Test: Confirms rated performance
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Noise Level Test: Ensures operation ≤ 60 dB
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Vibration & Shock Testing: Validates shipboard compatibility
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Marine Class Society Certification: Optional approvals from ABS, DNV, LR, BV, CCS, NK, RINA, KR
Installation & Maintenance
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Suitable for indoor and outdoor installation with NEMA-rated enclosures
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Dry-type, oil-free design enables safe installation in confined spaces
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Minimal maintenance: routine inspection, dust removal, temperature monitoring
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Can be integrated with shipboard automation, emergency power, and shore power systems
Customization Options
PowerNex 1000 kVA Dry Type transformers can be fully customized:
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Primary Voltage: 3.3–11 kV
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Secondary Voltage: 127–690 V AC
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Capacity: 250 kVA to 5000 kVA
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Phase & Connection: Single or three-phase; Delta–Wye, Wye–Wye, Delta–Delta
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Enclosure & Coating: Indoor NEMA 1, outdoor NEMA 3R, fully custom marine-grade coatings
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Cooling: Standard Air Natural (AN) or optional forced-air
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Certifications: IEC, ANSI, IEEE, CE, UL, cUL, CSA, and optional marine class society approvals
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OEM/ODM Options: Custom nameplates, labeling, branding, and packaging
FAQ (Frequently Asked Questions)
Q1: Can the transformer be installed in engine rooms or confined spaces?
A1: Yes, its dry-type, oil-free, air-cooled design allows installation in tight shipboard areas without fire hazards.
Q2: What primary and secondary voltages are supported?
A2: Primary: 3.3 kV, 6.6 kV, 10 kV, 11 kV. Secondary: 127 V, 220 V, 230 V, 240 V, 380 V, 400 V, 415 V, 440 V, 480 V, 690 V.
Q3: Are international and marine certifications available?
A3: Yes, IEC, ANSI, IEEE, CE, UL, cUL, CSA certifications are standard. Marine class society approvals (ABS, DNV, LR, BV, CCS, NK, RINA, KR) are optional.
Q4: Can this transformer be customized for different ship types or port systems?
A4: Absolutely. PowerNex provides OEM/ODM solutions for voltage, capacity, phase, enclosure, coating, and branding.
Q5: How long is delivery for global orders?
A5: Typically 6–12 weeks depending on customization and destination, with factory-direct global shipping.
Global Supply & B2B Wholesale
PowerNex delivers factory-direct 1000 kVA marine shore power isolation transformers worldwide at competitive B2B wholesale prices, supporting large-scale marine, port, and shipyard projects.
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Markets Served: USA, Canada, Australia, Brazil, Argentina, Mexico, Guyana, Malaysia, Indonesia, Saudi Arabia, UAE, UK, Germany, France, Spain, Italy, South Africa, and other international regions.
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OEM/ODM Support: Custom branding, enclosures, voltage, and capacity for seamless integration.
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Engineering & Quality Assurance: High-performance, globally certified, and fully compliant with international marine standards.
✅ PowerNex: Your trusted partner for 1000 kVA marine shore power isolation transformers, delivering reliable, safe, and globally certified solutions for ports, vessels, and shipboard power networks worldwide.
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