Electrical fault location determination
AssigneeVetco Gray Controls Limited
InventorMartin Stokes
Life of this patent
Estimating the term…
Abstract
A method of determining the location of a fault in a cable at an underwater fluid extraction facility is provided. The method comprises: providing a time domain reflectometry unit at the facility, the unit being connected to at least one wire within the cable; causing the unit to transmit a current pulse to the wire; detecting a reflected pulse received at the unit; determining the time duration between the pulse transmission and the reflected pulse reception and using the duration to calculate a distance between the fault and the unit; and determining the location of a fault on the wire using the calculated distance.
Claims17
A method of determining the location of a fault in a cable at an underwater fluid extraction facility, the method comprising:
- providing a time domain reflectometry unit at the facility, the unit being connected to at least one wire within the cable;
- causing the unit to transmit a current pulse to the wire;
- detecting a reflected pulse received at the unit;
- determining the time duration between the pulse transmission and the reflected pulse reception and using the duration to calculate a distance between the fault and the unit;
- determining the location of a fault on the wire using the calculated distance;
- and identifying components at the facility which have impaired performance.
An underwater fluid extraction facility comprising means for determining the location of a fault in a cable at the facility, the fault location determination means comprising a time domain reflectometry unit, the unit being connected to at least one wire within the cable, and means for identifying components at the facility which have impaired performance.
Dependencies are inferred from the claim text.