Emergency Generators

Emergency Generators

Cruise Ship Power

What is a marine generator, and how does one work?

In theory, a marine generator is much the same as any other generator, and can be found on board just about any large boat or yacht to power its running equipment and various electrical appliances. Of course, a marine generator is specialised to the marine environment; designed with weight and space saving in mind, and equipped to survive the damp and salty sea air.

Put simply, marine generators output electricity (or electrical energy) by taking 'ordinary' energy, like that generated by combusting fuels such as diesel and gasoline, and converting it into electrical energy. The energy created by burning this fuel drives mechanics inside the generator that spin a coil of wire inside magnets of opposite charges. This forces electrons through the wire and creates a current. Soon, electricity flows, and the outlets on the generator have power.

Why do I need a marine generator?

Although you probably have a range of batteries and inverters which could be used to create power on board your yacht, it’s likely that with the size and purpose of a superyacht you’ll be running air conditioners, lighting and refrigerators around the clock, before the crew wakes up and fires up the galley and host of cleaning and entertainment systems. As such you’ll need a marine generator of appropriate size to meet the yacht’s demands without putting additional strain on the boat’s batteries.

Key Facts About Marine Generators

A marine generator’s operating speed matters

A marine generator’s operating speed matters Electronic equipment, whether it's at land or sea, is designed to use power with a fixed frequency, or hertz (Hz). Whilst it would be lovely if the entire world ran on the same frequency that unfortunately is not the case: The USA and Canada use 60Hz power, whilst Europe, Australia, and much of Asia use 50Hz.

On world-roaming superyachts, this can be tricky. Generators that run at the same frequency as the regions you’re likely to spend the most time in are therefore the best choice for minimal hassle, but it’s good to know that many AC-powered devices these days aren't too sensitive to whether they're receiving 50Hz or 60Hz power – but, bear in mind that an AC-powered motor that's designed for 50Hz power in Europe would run 20% faster if you powered it at 60Hz from shore power in the USA. This could therefore cause potential problems with refrigerators or air-conditioning systems if they were to be powered incorrectly.

These sorts of issues typically have solutions these days, which can be advised by suppliers – but it's a worthwhile point to understand, as you may need to make advance preparations before visiting different regions to ensure your power needs are taken care of safely at all times.

Marine Power Gen

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