Generators

Generators are extremely important to guarantee electricity where the grid cannot reach or in times of emergency in which, for example due to bad weather, grid current is not available. Generators are often indispensable allies, but it is important to choose them carefully so as not to risk that they fail to generate the current necessary for the operation of the devices we need. To choose the type of generator you must first understand which devices, machines or equipment will need to be connected to it and add up all the Watts of the users to be powered.

In order to choose the one that best suits your needs from the generators, it is important to consider the difference between rated and inrush current: while the first is the one required by the device or machine "running", the second is the one required in transient phases (especially in electric motors), such as at ignition. The latter is higher than the nominal one (about 3 times) and is the one to be considered in the sum of the Watts of the users to be powered and, therefore, in the choice of the generator.

In addition to the power, it is important to choose the type of voltage regulation of the generators between an AVR and an Inverter system. In any case, the aim will be to regulate the output voltage to reduce the risk of overvoltage and consequent damage to the devices. Compared to the AVR, the inverter guarantees better stabilization of the current, as well as compactness and silence.

To meet ever-changing needs, generators equipped with PowerRush are also available. If we consider that normally the mains current, for example at 3kW, for a few seconds manages to sustain a greater inrush, the current generators cannot do it. For this reason, the generating sets must have a higher power, unless they are equipped with Powerrush: this system allows in fact to sustain a higher starting point than the maximum power of the generator for some time.

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How do you choose a generator?

To choose the right power generator for your needs, it is important to calculate the power required to start up the device that needs to be powered by the generator. To calculate the power required by the device, it is essential to consider the power required during the start-up phase. The start-up is the moment when a device requires a peak of energy to operate (for example, when switching on) and is usually equal to three times the normal power requirement of the device. If the generator is undersized in relation to the start-up, the connected device will not be able to start. When choosing a generator, it is therefore necessary to consider a maximum power greater than that required by the device at nominal power (i.e., at full capacity).

What is meant by powerrush in a generator?

Only some power generators are equipped with Powerrush. These can, despite having less power, briefly reach the power required to cancel the starting power.

What is meant by AVR in a power generator?

The Automatic Voltage Regulator (AVR) is an electronic device mounted on the alternator of the power generator for the purpose of independently managing and regulating voltage and frequency according to the load.

How do inverter generators work?

Inverter power generators differ from standard generators in their structure: the combustion engine is not directly coupled to an alternator. The inverter regulates the amount of mechanical energy required for the specific load, possibly also reducing fuel consumption. The inverter generator is more compact and quieter, particularly suitable for powering sensitive electronic devices such as PCs or smartphones.

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