D-C electric drilling rigs: Application and operation

THE d-c variable voltage drive for diesel or gas-electric drilling rigs has gained considerable popularity since the introduction of lightweight low-cost electric equipment. However, quite often not sufficient advantage has been taken of the intermittent capability of the generators and motors, both from an application and operational standpoint. This paper presents information derived from an analysis of actual operating test data which should assist users, rig builders, and operators in applying and operating electric drives more effectively on drilling rigs.