Oil and gas drilling is a complex task that requires specialized power generation equipment. Cat 3500 generator sets are specifically designed for drilling operations of electric AC rigs. They combine decades of field experience of the 3500 platform with technology in electronics to ensure highest performance, low emissions, and simplified operator interface. 3516B land drilling generator set. Ratings: 1320 ekW (1885 kVA) @ 60 Hz (1200 rpm). Not emissions certified, available for non-regulated areas.