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Unformatted text preview: umbilical cables provided the electrical power and communication to the pods. The electrical power originated from power and communication cabinets located on the surface. The cabinet has a dedicated uninterruptable power supply that provided electrical power to subsea systems for a minimum of two hours if main power from the rig was interrupted or removed. There were control panels on the rig that would allow the rig crew to send emergency disconnect commands to the subsea equipment. The commands were transferred to the BOP stack through control pods that were connected to the rig by multiplex umbilical cables. 333 D. Automatic Mode Function (“Deadman”) The automatic mode function (“AMF”) or “deadman” system is designed to close the BSR in the event that the LMRP suffers the loss of electrical power, the loss of fiber‐optic communication with the rig, and the loss of hydraulic pressure from the rig. The accumulator bottles located on the lower BOP stack provided the hydraulic power for the AMF. 334 The step‐by‐step...
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This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

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