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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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    wallywombat:

    Of course if the genset is intended to automatically take over, all the light switches may already be physically in the on position; so you wouldn't get the advantage of a staggered power on. Which is another reason for something like time delay relays like Mike suggests.


    I was thinking of only one switch, which is connected to a PLC input. The operation of the ATS will result in a PLC reboot  and this will start the power on sequence. I'm not yet sure if my logic is ok.


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    wallywombat:

    Of course if the genset is intended to automatically take over, all the light switches may already be physically in the on position; so you wouldn't get the advantage of a staggered power on. Which is another reason for something like time delay relays like Mike suggests.


    I was thinking of only one switch, which is connected to a PLC input. The operation of the ATS will result in a PLC reboot  and this will start the power on sequence. I'm not yet sure if my logic is ok.


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