Naval Magnetic Solutions:
At Exxelia, we don’t just supply “off-the-shelf” components. Our core strength lies in our ability to develop Build-to-Spec magnetic solutions (transformers and inductors) through our dedicated R&D teams. We understand that every naval electrical architecture is unique.
Below, we highlight 5 of our flagship products that demonstrate the breadth of our expertise, ranging from precision measurement transformers to water-cooled high-power inductors.
Precision: Low Frequency Isolated Transformer for Measuring Chains
Monitoring onboard networks requires impeccable signal integrity. Our Low Frequency Isolated Transformer was specifically engineered to integrate seamlessly into modern naval measurement chains.
Unlike standard commercial solutions, this transformer prioritizes linearity and galvanic isolation to ensure that data transmitted to control systems remains noise-free, even in electromagnetically noisy environments.
- Exxelia Advantage: A compact design (approx. 120x100x135 mm) capable of maintaining measurement precision (30VA / 60Hz) while providing a robust safety barrier for downstream equipment.
Power Density: High Frequency Transformer for High Power Naval Solutions
The current trend in naval power electronics is the shift toward higher frequencies to reduce the weight and volume of converters (SWaP – Size, Weight, and Power).
Our High Frequency Transformer addresses this challenge directly. By utilizing advanced winding technologies (proprietary Litz wires, flat conductors) and low-loss magnetic materials, we can handle high power levels (tens of kW) within reduced volumes.
- Exxelia Advantage: Optimized thermal management. Whether through conduction, forced convection, or liquid cooling, our engineers tailor the thermal dissipation path to ensure the component’s “hot spot” remains well within safety limits, guaranteeing an extended operational lifespan.
Extreme Environments: 20kW Self-Transformer Assembly for Reactors
This is where Exxelia’s expertise is most critical. Developing a Self-Transformer Assembly (20kW, 35µH) for naval propulsion requires far more than electrical skills. It demands total mastery of materials in the face of radiation and exceptional mechanical resistance to shock (military grade qualifications).
This hybrid product combines transformation and inductance functions into a single mechanical assembly to save critical space while maximizing reliability.
- Exxelia Advantage: Unfailing reliability. This component is designed to operate for decades without maintenance, integrating drastic safety margins to meet the most stringent sector standards.
Magnetic Stealth: High Frequency Self-Inductor for Degaussing Systems
To counter magnetic mines and reduce a vessel’s signature, modern Degaussing systems rely on current loops driven by sophisticated high-frequency amplifiers.
Our High Frequency Self-Inductor is a key element of these converters. It must withstand intense currents while effectively filtering harmonics to generate a “clean” magnetic field.
- Exxelia Advantage: The ability to handle strong DC and AC superimposed currents without core saturation, thanks to a rigorous selection of magnetic materials (powder cores, nanocrystalline) and a rugged mechanical design proofed against the vibrations of rotating machinery.
High Power Naval Inductor (300 kVA)
For main power distribution, we have developed a High Power Inductor capable of handling up to 300 kVA. This component is a prime example of our ability to integrate complex cooling systems.
Utilizing indirect water cooling, this inductor offers phenomenal power density compared to air-cooled solutions, allowing for significant space savings in the engine room.
- Exxelia Advantage: Mastery of liquid cooling. We design integrated heat exchangers to efficiently evacuate heat, allowing the inductor to operate at full load (up to 500 kHz) in hot ambient environments (up to 75°C), while remaining watertight and pressure-resistant (tested to 12 Bars).
Technical Comparison
The table below presents examples of realized specifications. It is important to note that at Exxelia, these values are not limits, but starting points for your specific requirements.
| Product | Primary Function | Typical Values | Frequency | Cooling Technology | Typical Application |
|---|---|---|---|---|---|
| LF Isolated Transformer | Galvanic Isolation & Measurement | 30 VA (Signal) | 60 Hz (Low Freq) | Natural Convection | Measurement chains, Monitoring |
| HF Power Transformer | Power Conversion (DC/DC or AC/DC) | 10 kW – 100 kW+ | 20 kHz – 100 kHz+ | Forced Air or Liquid | Power supplies, Radars, Sonars |
| Self-Transformer Assembly | Combined Filtering & Transformation | 20 kW / 35 µH | Medium / High Freq | Conduction / Cold Plate | Reactors, Propulsion |
| HF Self-Inductor | High Current Filtering | High Current (Hundreds of Amps) | High Frequency | Air or Liquid | Degaussing Systems, Magnetic protection |
| High Power Inductor | Smoothing & Distribution | Up to 300 kVA | 50 Hz – 500 kHz | Water Cooling (Indirect) | Main power distribution, Submarines |
Engineers, do you have a space, thermal, or reliability constraint on your next naval design?
Don’t search for the perfect component in a standard catalog. Contact our Magnetics R&D Team to create it together.
Source: Exxelia
