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LED inrush current and generator set

Julien Leblanc
Hello,


I'm currently working on a sport field application where i need to power some LED reflectors (30 kW total).

I will also use a generator set, in case the network fails.


The inrush current of the reflectors is 3 times higher than their rated current, but the duration is only 0.2ms.


Could anybody tell me if i should take into account the inrush current when I choose the generator set power (that is, to oversize the generator)?

Or i should ignore the inrush current and set the power of the generator a bit higher than the total power of the reflectors?

I'm not talking about the circuit breakers of generator's outputs. Let's say one can choose them so that they don't trip.

If those breakers don't trip, is it possible that anything else happen to the generator set, because of the inrush current?


I've been searching through the specifications of many generator sets, but i cannot find any data on this specific problem (short overload).






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  • 0
    If the customer insists on one step load, then the lamp inrush and concerns of KVA vs KW will pale beside the cost of installing a 70-90kVA machine with something that looks like a small bus or large van engine, when for 30kVA a enerator half the size and an engine about the size of one from the diesel version of the Ford Fiesta, with corresponding lower fuel consumption would do if you could sequence it.

    Even so  it takes time to crank over, start and get up to speed before any load can be connected and that will be total blackout, so battery EM lights will be needed anyway
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  • 0
    If the customer insists on one step load, then the lamp inrush and concerns of KVA vs KW will pale beside the cost of installing a 70-90kVA machine with something that looks like a small bus or large van engine, when for 30kVA a enerator half the size and an engine about the size of one from the diesel version of the Ford Fiesta, with corresponding lower fuel consumption would do if you could sequence it.

    Even so  it takes time to crank over, start and get up to speed before any load can be connected and that will be total blackout, so battery EM lights will be needed anyway
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