Hi there cephus,
Welcome to ECN!.
Sounds to me like there is a voltage spike problem, or at the least, a very unstable voltage coming from the generator.
Is there any way that the output can be measured during start-up?.
Failing that, I'd say use some sort of Surge Diversion equipment, could help with the problem.
In the pumps themselves, a type of MOV (metal-oxide-varistor), keeping in mind, that any equipment installed in potentially explosive atmospheres, needs to be rated accordingly!.
Only properly trained persons (petro-chem technicians) should attempt this, I'm telling you!.
Can anyone tell me, are fuel pumps fed by Intrinsically Safe circuits?
Considering they have Fluorescent lights in them.
