The ROSS HILL 10050155-001 DC control module under NATIONAL OILWELL VARCO (NOV) is manufactured in the United States. It serves as the core drive and control unit of the Series 1400 SCR electrical control system, specially designed for DC motor drive systems of onshore oil rigs and offshore drilling platforms.
Built on ROSS HILL proven DC voltage regulation control architecture, this module realizes stepless speed regulation and stable torque control for DC motors of drawworks, rotary tables and mud pumps by adjusting the firing phase angle of silicon controlled rectifiers (SCRs). It integrates a full set of protection logics including independent current limiting, dynamic braking, zero position locking and load balancing distribution. Featuring unified standardized original factory hardware specifications, modules of the same series support rapid field interchangeability. Optimized for long-term operation under harsh oilfield working conditions with heavy loads, dust, vibration and drastic temperature fluctuations, it is an irreplaceable core electrical spare part for electrically driven oil drilling rigs.
NATIONAL OILWELL VARCO ROSS HILL 10050155-001 DC CONTROL MODULE
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