Eremu shore power transformer

Protect your yacht or workboat with an Eremu shore power transformer

A reliable power supply is simply the lifeline of any modern vessel.

When you dock at the harbor, you expect your equipment to switch over to shore power effortlessly.

However, docking also carries a less obvious risk.

A direct connection to the power grid on the dock poses significant risks to the condition of your vessel.

What exactly does a shore power transformer do on a vessel?

This component enables safe power transfer without a physical wire connection.

An Eremu shore power transformer is a crucial piece of maritime equipment on board.

The system provides complete galvanic isolation between the dock’s ground and the onboard electrical system of your yacht or workboat.

This physical isolation provides immediate protection for your property:

• Electrolysis is prevented from causing damage.

• Severe and costly corrosion of the hull is effectively prevented.

• You protect the propeller and the entire propulsion system from stray currents.

Solutions from detransformatorspecialist.nl

In this comprehensive technical article, we discuss the finer points of the technology.

At detransformatorspecialist.nl, we clearly walk you through the various designs.

We’ll also highlight the specific advantages over traditional alternatives.

We’ll also show you how to permanently resolve common malfunctions, such as a tripping fuse.

The Hidden Enemy: How Does an Isolation Transformer Prevent Corrosion on My Boat?

A frequently asked question from boat owners and yacht builders is: How does an isolation transformer prevent corrosion on my boat?

To understand this, we’ll examine the process behind galvanic corrosion.

When you connect your vessel using a standard power cable, you’re connecting the ground terminal of the shore power outlet to the metal parts of your vessel.

Since saltwater or brackish water is an excellent conductor of electricity, a massive galvanic cell is created involving the sheet piles, the pier, and other vessels.

Harmful stray currents begin to flow immediately.

Your valuable zinc anodes will be consumed in no time.

Next, the electrolysis targets your aluminum or steel hull, the keel, and the bronze propeller.

Fortunately, an eremu shore power transformer stops this process immediately.

Because the current is converted into a magnetic field on the shore side and regenerated on board, there is no longer a copper connection.

This permanently breaks the dangerous ground loop.

This makes the transformer the most reliable protection:

• It is the only method that offers 100% protection against galvanic corrosion.

• It works significantly better than a galvanic isolator, which only provides protection up to a threshold voltage of approximately 1.2 volts DC.

• Both the hull and the propulsion system remain fully intact.

Controlling inrush peaks: How do I prevent a fuse from blowing when powering up?

It’s a common source of frustration on the scaffolding.

You plug in the heavy-duty cable, flip the switch, and immediately the power goes out everywhere.

How do you prevent a shore power fuse from blowing when turning on the power?

The culprit is the device’s extreme inrush current.

When magnetizing a heavy-duty transformer core, the current demand can rise to as much as 15 times the rated current in the first few milliseconds.

A 16A or 32A shore power fuse responds to this by tripping immediately for safety reasons.

The structural solution to this is an eremu shunt current transformer with an integrated soft starter.

Such an inrush current limiter ensures that the transformer is gradually brought up to voltage via resistors.

After a fraction of a second, these resistors are neatly bypassed by a relay.

The advantages of a soft starter at a glance:

• The high inrush current peak is effectively smoothed out.

• The shore power fuse remains intact, even with sensitive industrial connections.

• It prevents frustration and power outages during docking.

At detransformatorspecialist.nl, we recommend this module as standard for every maritime project.

Customized for cramped engine rooms: compact IP54 shore power transformer for yachts

In luxury yacht building, space is almost always at a premium.

After all, engine rooms are crammed with engines, generators, watermakers, and large battery banks.

A standard transformer in a conventional IP23 enclosure is often too large or insufficiently protected against the humid conditions at the bottom of the ship.

That is why the demand for a compact IP54 shore power transformer for yachts is growing rapidly.

An IP54 or IP65 rating guarantees that the enclosure is dustproof and splash-proof.

Because these enclosures are completely sealed, the transformer’s internal design is crucial.

After all, heat dissipation must be perfectly optimized.

In close collaboration with the Eremu factory, we therefore design the core using high-quality copper and optimized heat sinks.

This keeps heat generation to a minimum and saves you a significant amount of space.

The advantages of a compact IP54 enclosure:

• Complete protection against dust, moisture, and salt water.

• A significantly smaller footprint in your machine room.

• No loss of power or service life whatsoever.

   

B2B Customization: Have an Eremu isolation transformer custom-made

No two ships are exactly alike.

Especially in professional inland shipping, the offshore sector, and superyacht construction, standard catalog products simply aren’t enough.

Would you liketo have acustom Eremu isolation transformer made?

At detransformatorspecialist.nl, this is a streamlined and straightforward process.

Your vessel may require a different input voltage for international voyages.

This includes the ability to switch flexibly between 110V, 230V, and 400V at 50Hz or 60Hz.

Thanks to our direct line of communication with Eremu’s engineers, we can act quickly.

We deliver a custom technical design in a short timeframe.

We integrate the following options, among others:

• PT100 temperature sensors for precise monitoring.

• Custom cable entries at the desired locations.

• Vibration dampers for extremely quiet operation on board.

• Official maritime certifications such as DNV or Lloyd's Register.

Selection Guide: Which Eremu transformer do I need for 400V?

For larger vessels with high-power loads such as bow thrusters, heavy-duty air conditioners, and cooktops, a 3-phase 400V onboard power system is standard.

We determine which Eremu transformer you need for 400V based on your main distribution panel.

For a 400V installation, we almost always recommend a Dyn11 configuration.

In this Dyn11 configuration, the primary side is connected in a delta configuration and the secondary side in a star configuration with a neutral point.

This offers the major advantage of providing you with a loadable neutral on board.

This allows you to effortlessly power your 400V devices and distribute the 230V loads evenly across the three phases.

This balancing of asymmetrical loads keeps the system stable.

Match the power rating to your circuit breaker:

• A 3x16A fuse requires the 12kVA model.

• A 3x32A connection pairs seamlessly with the 23kVA model.

• A 3x63A circuit requires the powerful 44kVA version.

Models, prices, and request a quote

As specialists, we keep the most popular configurations readily available.

For example, you can immediately purchase an Eremu 23kVA Dyn11 IP23 shore power transformer for medium-sized vessels with a 3x32A circuit.

The prices below give you a clear, immediate overview of the investment.

Overview of standard models

• Price of the Eremu 3-phase shore power transformer 12kVA: This model for 16A systems is available starting at €2,257.50 (excluding VAT).

• Price of the Eremu 3-phase shore power transformer 23kVA: Our most popular model for 32A connections is priced at €3,412.50 (excluding VAT).

• Price of the Eremu 3-phase shore power transformer 44 kVA: For heavy-duty 63 A installations, prices start at €5,092.50 (excluding VAT).

Get a quick, customized quote

Would you like to know exactly what to expect for your specific project?

You can quickly and easilyrequest aquoteforan Eremu 12kVA shore power transformerforlighter-rated connections via our website.

Even if you’d liketo request aquote foran Eremu 23kVA shore power transformer for your medium-sized vessel, you’ll receive a clear proposal shortly.

If you need the highest capacity, our team will assist you immediately with acustomizedquote for an Eremu 44kVA shore power transformer.

Comparison: Why Choose an Eremu Shore Power Transformer?

In the maritime sector, there’s a wide selection of different brands to choose from.

We’re often asked why one should choose an Eremu shore power transformer over alternatives.

In Flanders, people often look for a robust Eremu shore power transformer for commercial shipping.

When comparing Eremu with brands such as Victron, Amplimo, or Trafa, the professional market quickly opts for Eremu.

Consumer brands often manufacture lighter toroidal-core units for the mass market.

Eremu, on the other hand, stands out with its rock-solid, resin-impregnated E-core transformers.

The vacuum-pressure impregnation (VPI) process also ensures extreme resistance to shocks and vibrations.

The major advantages at a glance:

• Virtually silent operation without an annoying hum in the vessel.

• High thermal and mechanical load capacity.

• Customization of the housing, cable glands, and soft starter to meet your shipyard’s specific requirements.

Where can I buy an Eremu shore power transformer in the Netherlands?

Are you asking yourself:Where can I buy an Eremu shore power transformer in the Netherlands?

The answer is simple and close at hand.

Ifyou’relookingfortheofficial dealer of Eremu marine transformers, visit detransformatorspecialist.nl.

Our B2B team supports engineers, yacht builders, and installers every day with tailored advice.

We offer much more than just the product:

• Advice on the required kVA capacity based on your single-line diagram.

• Full technical support during installation.

• Reliable after-sales service during commissioning.

Frequently Asked Questions

What does a shore power transformer do on a ship?

The system physically isolates the ship’s electrical system from the shore power grid via galvanic isolation.

This eliminates the risk of stray currents and prevents severe corrosion of the hull.

How does an isolation transformer prevent corrosion on my boat?

Since there is no longer a direct electrical connection between the copper and ground, the ground loop is broken.

As a result, stray currents can no longer corrode the metal parts, the zinc anodes, or the propeller through electrolysis.

How do I prevent a shore power fuse from blowing when turning on the power?

You can resolve this by equipping the transformer with a soft starter.

This module attenuates the extremely high inrush current, ensuring that the marina fuse remains engaged.

Can I have an Eremu isolation transformer custom-made?

Yes, that’s certainly possible.

Whether it involves non-standard voltages, temperature monitoring, or a compact IP54 enclosure, detransformatorspecialist.nl provides custom solutions directly from the factory.

Why choose an Eremu shore power transformer?

Because of its industrial VPI construction, excellent cooling, and quiet operation.

In addition, the brand offers maximum flexibility for professional B2B customization.

Which Eremu transformer do I need for 400V?

For a 3-phase 400V connection, choose a 12kVA (16A), 23kVA (32A), or 44kVA (63A) transformer with a Dyn11 connection.

This immediately provides a loadable neutral for all 230V equipment on board.

Where can I buy an Eremu shore power transformer in the Netherlands?

You can order your equipment directly from detransformatorspecialist.nl, the official specialist with in-depth maritime expertise.

Get your vessel ready for the future

Protecting your yacht or commercial vessel starts with a flawless electrical foundation.

Ignoring corrosion risks can end up costing a lot of money.

In addition, tripped shore power fuses cause a lot of frustration while docking.

By installing an Eremu shore power transformer, you’re investing in years of peace of mind.

Want to know which model fits perfectly in your engine room?

Then visit detransformatorspecialist.nl right away.

There, you can easily configure a standard model or quickly request a competitive quote for a custom IP54 unit.