3200 Amp / 850VDC Rectifier for Drilling Rig
An Industrial customer had to design a drilling rig which would be powered by 3 diesel generators. APS supplied (2) 100-6758 air cooled, 3200A, 3 phase rectifiers to provide the 850VDC bus required by the VFD motor drives. We also provided (2) IAP2KD17 dynamic brake choppers to limit the DC bus voltage during the descent of the drawwork motor. The rectifier and brake choppers are standard APS products.