I have an ongoing problem that happens rarely enough to pinpoint, but enough to be irritating. I have a 3 phase, 440 volt, 17 amp, 7.5 Kw motor installed as a suction blower on a paper sheeting machine. When the machine is running production, the motor runs well within it's current limit of 17 amps. When the machine is started and stopped, the motor starts up and runs fine. The problem is when the machine is powered down for an extended period of time (days) and them restarted. This is when it blows 2 fuses. The fuses we were using were Bussman-LPS-RK-25, dual element time delay fuses, we now use Amp Trap AJT-25, dual element time delay fuses. Each has the same end result. The motor is fed from a MCC bucket and the only other thing tied into these main fuses is the control transformer inside the bucket, which has primary fusing at 1.5 amps. These fuses are not blowing. I have megged the motor and the wires, resistance checked the transformer and starter and have found nothing wrong. Let me mention that this same thing happens on the exact same motor of an identical machine. If anyone has any insight to this issue, any and all help would be appreciated. Thanks.