DRILLING RIG SYSTEM HAVING IMPROVED ELECTRICAL SUBSYSTEM
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Abstract
In embodiments a drilling rig system includes a rig unit having rig equipment and a rig electrical subsystem configured for electrical communication with the rig equipment and including a rig electrical subsystem input transformer, an electrical system including a primary power supply subsystem remote from the rig unit, and an intermediate electrical subsystem.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A drilling rig system comprising:
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a rig unit comprising; a mast, rig equipment; and a rig electrical subsystem configured for electrical communication with the rig equipment, the rig electrical subsystem configured to deliver power to the rig equipment, the rig electrical subsystem comprising a rig electrical subsystem input transformer; an electrical system comprising; a primary power supply subsystem remote from the rig unit; the intermediate electrical subsystem configured for electrical communication between the primary power supply subsystem and the rig electrical subsystem, the intermediate electrical subsystem configured to carry power from the primary power supply subsystem to the rig electrical subsystem, the intermediate electrical subsystem comprising an intermediate conductor configured to carry 4160 VAC. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification