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Understanding Shipping Terms

Understanding Shipping Terms 0

What does it all mean?  EXW (EX-Works) FOB (Free On Board) FCA (Free Carrier) FAS (Free Alongside Ship)* CFR (Cost and Freight) CIF (Cost, Insurance and Freight CPT (Carriage Paid To) CIP (Carriage and Insurance Paid To) DAT (Delivered At Terminal)
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Pin And Sleeve

Pin And Sleeve 0

The right pin plug or pin and sleeve receptacle safely powers heavy machinery and industrial components. The watertight pin plugs and receptacles also secure connections to industrial equipment in areas where flooding is a potential problem.
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How are generators sized? 0

Generators are sized in several different ways depending on the requirements of the site and load to be covered. For example some customers may require that the generator provides backup for the entire site while others may only require ‘essential’ loads to be generator backed. It is also necessary to consider the type of load that will be applied to the unit. For example, UPS loads have some harmonic content (especially older UPS’s) and the generator must be sized to cope with this type of load.

Motors and pumps are another load that will affect the performance of the generator during starting. Another aspect to consider is the nature of the engine chosen. Some turbo-charged engines have a relatively low initial load step capability – it is sometimes necessary to oversize the unit to cope with the required site load.

Careful thought of which loads to apply and whether to stagger the re-application of the loads can make a significant difference to the overall cost of the installation.

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Can you convert a 60 Hz generator to 50 Hz? 0

Can you convert a 60 Hz generator to 50 Hz?

 

In general, most commercial generators can be converted from 60Hz to 50Hz. The general rule of thumb is 60 Hz machines run at 1800 rpm and 50 Hz generators run at 1500 rpm. With most generators changing the frequency, it will only require turning down the rpm’s of the engine. In some cases, parts may have to be replaced or further modifications made.

Larger machines or machines already set at a low rpm are different and should always be evaluated on a case by case basis. We prefer to have our experienced technicians look at each generator in detail in order to determine the feasibility and what all will be required.

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What is an Automatic Transfer Switch or ATS? 0

An automatic transfer switch (ATS) transfers power from a standard source, like utility, to emergency power, such as a generator when the standard source fails. An ATS senses the power interruption on the line and in turn signals the engine panel to start. When the standard source is restored to normal power, the ATS transfers power back to the standard source and shuts the generator down.

Automatic Transfer Switches are often used in high availability environments such as data centers, manufacturing plants, telecommunication networks and so forth.

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Prime VS Standby Generators 0

What is the difference between standby, continuous, and prime power ratings?

 

Standby power generators are most often used in emergency situations, such as during a power outage. It is ideal for applications that have another reliable continuous power source like utility power. It’s recommended usage is most often only for the duration of a power outage. Prime power ratings can be defined as having an “unlimited run time” or essentially a generator that will be used as a primary power source and not just for standby or backup power.

A prime power rated generator can supply power in a situation where there is no utility source, as is often the case in industrial applications like mining or oil & gas operations located in remote areas where the grid is not accessible.

Continuous power is similar to prime power but has a base load rating. It can supply power continuously to a constant load, but does not have the ability to handle overload conditions or work as well with variable loads.

The main difference between a prime and continuous rating is that prime power gensets are set to have maximum power available at a variable load for an unlimited number of hours and they generally include a 10% or so overload capability for short durations.

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Generator Power Factor? 0

The primary difference between kW (kilowatt) and kVA (kilovolt-ampere) is the power factor. kW is the unit of real power and kVA is a unit of apparent power (or real power plus reactive power). The power factor, unless it is defined and known, is therefore an approximate value (typically 0.8), and the kVA value will always be higher than the value for kW. In relation to industrial and commercial generators, kW is most commonly used when referring to generators in the United States, and a few other countries that use 60 Hz, while the majority of the rest of the world typically uses kVa as the primary value when referencing generator sets.

To expand on it a bit more, the kW rating is essentially the resulting power output a generator can supply based on the horsepower of an engine. kW is figured by the horsepower rating of the engine times .746. For example if you have a 500 horsepower engine it has a kW rating of 373. The kilovolt-amperes (kVa) is the generator end capacity. Generator sets are usually shown with both ratings. To determine the kW and kVa ratio the formula below is used. .8 (pf) x 625 (kVa) = 500 kW

What is a power factor?

The power factor (pf) is typically defined as the ratio between kilowatts (kW) and kilovolt amps (kVa) that is drawn from an electrical load, as was discussed in the question above in more detail. It is determined by the generators connected load. The pf on the nameplate of a generator relates the kVa to the kW rating (see formula above).

Generators with higher power factors more efficiently transfer energy to the connected load while generators with a lower power factor are not as efficient and result in increased power costs. The standard power factor for a three phase generator is .8.

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What is the difference between kW and kVa? 0

What is the difference between kW and kVa?

The primary difference between kW (kilowatt) and kVA (kilovolt-ampere) is the power factor. kW is the unit of real power and kVA is a unit of apparent power (or real power plus reactive power). The power factor, unless it is defined and known, is therefore an approximate value (typically 0.8), and the kVA value will always be higher than the value for kW. In relation to industrial and commercial generators, kW is most commonly used when referring to generators in the United States, and a few other countries that use 60 Hz, while the majority of the rest of the world typically uses kVa as the primary value when referencing generator sets.

To expand on it a bit more, the kW rating is essentially the resulting power output a generator can supply based on the horsepower of an engine. kW is figured by the horsepower rating of the engine times .746. For example if you have a 500 horsepower engine it has a kW rating of 373. The kilovolt-amperes (kVa) is the generator end capacity. Generator sets are usually shown with both ratings. To determine the kW and kVa ratio the formula below is used. .8 (pf) x 625 (kVa) = 500 kW

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What is the difference in price for operating a diesel over natural gas or liquid propane generator?

What is the difference in price for operating a diesel over natural gas or liquid propane generator? 0

This chart shows the cost difference between diesel, gasoline, propane and natural gas. It is based on a 10kW generator running for 24 hours.

 

Generator Fuel Costs

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What are the advantages of a Diesel Engine? 0

What are the advantages of a Diesel Engine?

A diesel engine is much more efficient and preferable as compared to a gasoline engine due to the following reasons: Modern diesel engines have overcome disadvantages of earlier models of higher noise and emissions. They are now quieter, much cleaner and require less maintenance as compared with gas engines of a similar size.They are more rugged, reliable and cost effective.There is no sparking as the fuel auto-ignites.

The absence of ignition systems including ignition coils, spark plugs and spark wires lowers the maintenance costs and failures. Fuel cost per Kilowatt produced is 30-50% lower than that of gas engines.An 1800 rpm water cooled diesel unit operates for 12,000 to 30,000 hours before any major maintenance is necessary. An 1800 rpm water cooled gas unit usually operates for 6000-10,000 hours before it requires replacement.

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How Does a Diesel Engine Work? 0

How Does a Diesel Engine Work?

The distinction lies in the type of ignition. While gasoline engines operate on spark ignition, diesel engines employ compression - ignition for igniting the fuel. In the latter, air is drawn into the engine and subjected to high compression that heats it up. This results in a very high temperature in the engine, much higher than the temperature attained in a gasoline engine.

At peak temperature and pressure, diesel that is let into the engine ignites on account of the extreme temperature.In a diesel engine, air and fuel are infused into the engine at different stages, as opposed to a gas engine where a mixture of air and gas are introduced. Fuel is injected into the diesel engine using an injector whereas, in a gasoline engine, a carburetor is used for this purpose.

In a gasoline engine, fuel and air are sent into the engine together and then compressed. The air and fuel mixture limits fuel compression and hence the overall efficiency. A diesel engine compresses only air and the ratio can be much higher. A diesel engine compresses at the ratio of 14:1 up to 25:1, whereas in a gasoline engine the compression ratio is between 8:1 and 12:1.

After combustion, the combustion by-products are removed from the engine through the exhaust. For starting during cold months extra heat is provided through 'glow plugs'. Diesel engines can either be two cycles or four cycles and are chosen depending on the mode of operation. Air-cooled and liquid-cooled engines are the variants to be chosen appropriately. Liquid-cooled engines provide far better engine life, performance, and quieter operation.

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What is better Diesel or Gas Powered Generators? 0

Why should I buy a diesel generator over a gas or propane one?

In the event of a natural disaster, gas and propane lines are usually shut down by the utility companies or the government to prevent further destruction leaving those customers who have a natural gas or propane generator with a useless unit. Diesel is readily available from your local gas station and therefore, your diesel generator will operate without any restrictions. This scenario alone has influenced many of our customers to purchase a diesel generator.

A diesel generator will last you approximately 22,000 - 25,000 hours and a natural gas or propane generator will last approximately 1,500 hours in total. The extra money you spend on a diesel generator is obviously justified. 

Thanks to the invention of Rudolph Diesel, the diesel engine has proved to be extremely efficient and cost effective. Diesel fuel is priced somewhat the same as gasoline but diesel has a higher energy density, i.e. more energy can be extracted from diesel as compared with the same volume of gasoline. Therefore, diesel engines provide better fuel economy, making it an obvious choice for heavy-duty transportation and equipment such as generators.

Diesel is heavier and oilier compared with gasoline and has a boiling point higher than that of water. Diesel engines are attracting greater attention due to higher efficiency.

In today's world, where fuel prices are increasing as a consequence of spiraling demand and diminishing supply, you need to choose a cost effective fuel to meet your needs. and cost effectiveness.

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