Abstract: A power supply device for supplying at least one load from a three-phase supply network includes: a) a voltage converter with an input for connection to the three-phase supply network and an output for supplying the at least one load; b) a network analysis device for network analysis and generating at least one network parameter; and c) a message output. d) The network analysis device outputs the at least one network parameter at the message output. e) The at least one network parameter indicates a direction of rotation of the three-phase supply network at the input of the voltage converter.

Abstract: An improved solution for estimating the flow rate of a fluid in the wells of a hydrocarbon production installation, during production. A hydrocarbon production installation can include at least two production wells, each production well including at least one device adapted for providing an estimate of the flow rate of a fluid in the well based on respective data, the wells being connected to a test separator adapted for providing an estimate of the cumulative flow rate of the fluid for all of the wells based on respective data. Further, during production, a data reconciliation and validation process can involve the data relative to the devices and the test separator.

Abstract: An improved solution for estimating the flow rate of a fluid in the wells of a hydrocarbon production installation, during production. A hydrocarbon production installation can include at least two production wells, each production well including at least one device adapted for providing an estimate of the flow rate of a fluid in the well based on respective data, the wells being connected to a test separator adapted for providing an estimate of the cumulative flow rate of the fluid for all of the wells based on respective data. Further, during production, a data reconciliation and validation process can involve the data relative to the devices and the test separator.