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Generator FAQ


What is the difference between air-cooled versus liquid-cooled generator? 0

What is the difference between air-cooled versus liquid-cooled generator?


Air-cooled systems work by forcing air to the engine's metal fins around the engine cylinder only. Liquid-cooling systems, on the other hand, have a radiator and a water pump. The pump cycles the thermostatically controlled liquid coolant to the engine block through hoses, and the heat from the engine is transferred to the coolant. The heated liquid then goes to the radiator where the air cools it. Diesel generator engines commonly use liquid-cooling, but you will find all portable and most liquid propane, natural gas generators are air-cooled engines models only.

Air-cooled engines are generally cheaper to produce than liquid-cooled engines. This is because their components are less expensive to produce, need fewer parts. Air-cooled engines can easily overheat and have a much shorter engine life. Since air-cooled engines have the potential to overheat, using them full time is not recommended, nor warranted. Air-cooled engines that fail generally require either a major overhaul. Their maintenance and repair tasks tend to be more frequent and more time-consuming.

Since air-cooled engines in either portable generators or home standby LPG or LNG work at much faster speeds, they also wear out much faster. Oil break-down also happens faster and damage can occur with little warning.

Aurora Generators recommends you do NOT run air-cooled engines full-time. Shut down your air-cooled engine every few hours so it can cool. This is a good time to check your oil, add fuel and perform a general maintenance and/or inspections. All Aurora Generators are liquid cooled ranging from as small as 8kW - 30kW.

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What types of generators are there? 0

What types of generators are there?

There are 3 primary types of generators: Air Cooled Portables - These are usually a gasoline air cooled engine operating upwards of 3600 rpm. Used for small portable power needs, whether it be light commercial or for small home periodic portable standby. These generators are manually operated, recommended for short monitored run times only and cannot be used for automatic home standby.

Standby Generators - These are fixed installations including electrical connections and fuel supply (LPG and LNG). Engine plants can be either Liquid Propane (LPG), Natural Gas (LNG) or Diesel. For home or small business standby, all other generators except diesel are air cooled operating upwards of 3600 rpm. Aurora Generators are diesel liquid cooled engine plants operating at 1800 rpm. When paired with an automatic transfer switch, standby generator systems can detect any interruption in power from the utility company and automatically provides alternative power from the standby generator system. When utility power returns, your standby generator system will revert power back to the utility and the generator will shut down automatically.

Commercial Generators - These can be either portable such as trailer mounted, or fixed installation which includes prime power. Both engine and alternator are designed and equipped to be more rugged and durable. Engine equipped is more commonly diesel due to its far superiority in both longevity, fuel economy and lesser overall operating expense. On board, safer diesel fuel supply eliminates costly additional external fuel connections or supply such as the case for LPG or LNG require.

Alternators are heavy duty built providing both better longevity, reliability and cleaner power. Prime power generators are a continuous source of power when there is no access to public electric utilities. Applications are for off-grid cabins/cottage, military or remote commercial businesses.

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Who uses generators? 0

Homeowners, commercial and industrial businesses, government agencies, people living off the grid and many others use generators to ensure an uninterrupted power source is available.
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What does a generator do? 0

What does a generator do?

Our society has become increasingly dependent on electrical power for everyday needs such as lighting, climate control, cooking, water, refrigeration, computers and home security which all need electricity to work properly. There are times when you could be without power for a few minutes, hours, days even weeks. It could be an equipment failure on the part of the utility company or severe weather that disrupts the power grid.

The purpose of a generator is to take over when power is lost or not available and provide you with the electricity you and your family need and depend on.

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What is a generator? 0

A generator is a device for locally producing electrical energy on demand. This is mainly used as a backup to the main electricity supply and can automatically start and provide electricity for as long as the outage lasts. Other applications include commercial, construction, off grid backup or even prime power. A generator consists of a mechanical engine and electrical alternator.

The engine is the mechanical drive source which powers the electrical alternator output source. Engines can either be gasoline, liquid propane, natural gas, or diesel. This alternator contains a rotating mass of copper (rotor) and a stationary magnetic field (stator). When the rotor spins within the magnetic field it produces electricity at the alternator terminals. This is, of course, a simplistic statement and many other processes and controls are required to produce stable electricity at the correct voltage and frequency.

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What is Tier 4? 0

What is Tier 4?

Tier 4 is an emission level